mirror of
https://github.com/moby/moby.git
synced 2022-11-09 12:21:53 -05:00
e2fa3f56df
Docker-DCO-1.1-Signed-off-by: Victor Vieux <victor.vieux@docker.com> (github: vieux)
2164 lines
60 KiB
Go
2164 lines
60 KiB
Go
package docker
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import (
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"encoding/json"
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"errors"
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"fmt"
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"github.com/dotcloud/docker/archive"
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"github.com/dotcloud/docker/auth"
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"github.com/dotcloud/docker/cgroups"
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"github.com/dotcloud/docker/engine"
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"github.com/dotcloud/docker/pkg/graphdb"
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"github.com/dotcloud/docker/registry"
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"github.com/dotcloud/docker/utils"
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"io"
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"io/ioutil"
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"log"
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"net/http"
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"net/url"
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"os"
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"os/exec"
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"os/signal"
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"path"
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"path/filepath"
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"runtime"
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"strconv"
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"strings"
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"sync"
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"syscall"
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"time"
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)
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func (srv *Server) Close() error {
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return srv.runtime.Close()
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}
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func init() {
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engine.Register("initapi", jobInitApi)
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}
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// jobInitApi runs the remote api server `srv` as a daemon,
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// Only one api server can run at the same time - this is enforced by a pidfile.
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// The signals SIGINT, SIGQUIT and SIGTERM are intercepted for cleanup.
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func jobInitApi(job *engine.Job) engine.Status {
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job.Logf("Creating server")
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// FIXME: ImportEnv deprecates ConfigFromJob
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srv, err := NewServer(job.Eng, ConfigFromJob(job))
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if err != nil {
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job.Error(err)
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return engine.StatusErr
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}
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if srv.runtime.config.Pidfile != "" {
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job.Logf("Creating pidfile")
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if err := utils.CreatePidFile(srv.runtime.config.Pidfile); err != nil {
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// FIXME: do we need fatal here instead of returning a job error?
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log.Fatal(err)
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}
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}
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job.Logf("Setting up signal traps")
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c := make(chan os.Signal, 1)
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signal.Notify(c, os.Interrupt, syscall.SIGTERM, syscall.SIGQUIT)
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go func() {
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sig := <-c
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log.Printf("Received signal '%v', exiting\n", sig)
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utils.RemovePidFile(srv.runtime.config.Pidfile)
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srv.Close()
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os.Exit(0)
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}()
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job.Eng.Hack_SetGlobalVar("httpapi.server", srv)
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job.Eng.Hack_SetGlobalVar("httpapi.runtime", srv.runtime)
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// https://github.com/dotcloud/docker/issues/2768
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if srv.runtime.networkManager.bridgeNetwork != nil {
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job.Eng.Hack_SetGlobalVar("httpapi.bridgeIP", srv.runtime.networkManager.bridgeNetwork.IP)
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}
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if err := job.Eng.Register("export", srv.ContainerExport); err != nil {
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job.Error(err)
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return engine.StatusErr
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}
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if err := job.Eng.Register("create", srv.ContainerCreate); err != nil {
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job.Error(err)
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return engine.StatusErr
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}
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if err := job.Eng.Register("stop", srv.ContainerStop); err != nil {
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job.Error(err)
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return engine.StatusErr
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}
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if err := job.Eng.Register("restart", srv.ContainerRestart); err != nil {
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job.Error(err)
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return engine.StatusErr
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}
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if err := job.Eng.Register("start", srv.ContainerStart); err != nil {
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job.Error(err)
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return engine.StatusErr
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}
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if err := job.Eng.Register("kill", srv.ContainerKill); err != nil {
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job.Error(err)
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return engine.StatusErr
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}
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if err := job.Eng.Register("serveapi", srv.ListenAndServe); err != nil {
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job.Error(err)
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return engine.StatusErr
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}
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if err := job.Eng.Register("wait", srv.ContainerWait); err != nil {
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job.Error(err)
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return engine.StatusErr
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}
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if err := job.Eng.Register("tag", srv.ImageTag); err != nil {
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job.Error(err)
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return engine.StatusErr
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}
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if err := job.Eng.Register("resize", srv.ContainerResize); err != nil {
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job.Error(err)
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return engine.StatusErr
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}
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if err := job.Eng.Register("commit", srv.ContainerCommit); err != nil {
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job.Error(err)
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return engine.StatusErr
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}
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if err := job.Eng.Register("info", srv.DockerInfo); err != nil {
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job.Error(err)
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return engine.StatusErr
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}
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if err := job.Eng.Register("container_delete", srv.ContainerDestroy); err != nil {
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job.Error(err)
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return engine.StatusErr
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}
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if err := job.Eng.Register("image_export", srv.ImageExport); err != nil {
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job.Error(err)
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return engine.StatusErr
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}
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if err := job.Eng.Register("images", srv.Images); err != nil {
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job.Error(err)
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return engine.StatusErr
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}
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if err := job.Eng.Register("history", srv.ImageHistory); err != nil {
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job.Error(err)
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return engine.StatusErr
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}
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if err := job.Eng.Register("viz", srv.ImagesViz); err != nil {
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job.Error(err)
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return engine.StatusErr
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}
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if err := job.Eng.Register("container_copy", srv.ContainerCopy); err != nil {
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job.Error(err)
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return engine.StatusErr
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}
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return engine.StatusOK
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}
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func (srv *Server) ListenAndServe(job *engine.Job) engine.Status {
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protoAddrs := job.Args
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chErrors := make(chan error, len(protoAddrs))
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for _, protoAddr := range protoAddrs {
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protoAddrParts := strings.SplitN(protoAddr, "://", 2)
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switch protoAddrParts[0] {
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case "unix":
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if err := syscall.Unlink(protoAddrParts[1]); err != nil && !os.IsNotExist(err) {
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log.Fatal(err)
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}
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case "tcp":
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if !strings.HasPrefix(protoAddrParts[1], "127.0.0.1") {
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log.Println("/!\\ DON'T BIND ON ANOTHER IP ADDRESS THAN 127.0.0.1 IF YOU DON'T KNOW WHAT YOU'RE DOING /!\\")
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}
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default:
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job.Errorf("Invalid protocol format.")
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return engine.StatusErr
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}
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go func() {
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// FIXME: merge Server.ListenAndServe with ListenAndServe
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chErrors <- ListenAndServe(protoAddrParts[0], protoAddrParts[1], srv, job.GetenvBool("Logging"))
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}()
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}
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for i := 0; i < len(protoAddrs); i += 1 {
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err := <-chErrors
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if err != nil {
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job.Error(err)
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return engine.StatusErr
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}
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}
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return engine.StatusOK
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}
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// simpleVersionInfo is a simple implementation of
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// the interface VersionInfo, which is used
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// to provide version information for some product,
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// component, etc. It stores the product name and the version
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// in string and returns them on calls to Name() and Version().
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type simpleVersionInfo struct {
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name string
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version string
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}
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func (v *simpleVersionInfo) Name() string {
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return v.name
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}
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func (v *simpleVersionInfo) Version() string {
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return v.version
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}
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// ContainerKill send signal to the container
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// If no signal is given (sig 0), then Kill with SIGKILL and wait
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// for the container to exit.
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// If a signal is given, then just send it to the container and return.
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func (srv *Server) ContainerKill(job *engine.Job) engine.Status {
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if n := len(job.Args); n < 1 || n > 2 {
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job.Errorf("Usage: %s CONTAINER [SIGNAL]", job.Name)
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return engine.StatusErr
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}
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name := job.Args[0]
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var sig uint64
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if len(job.Args) == 2 && job.Args[1] != "" {
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var err error
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// The largest legal signal is 31, so let's parse on 5 bits
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sig, err = strconv.ParseUint(job.Args[1], 10, 5)
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if err != nil {
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job.Errorf("Invalid signal: %s", job.Args[1])
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return engine.StatusErr
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}
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}
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if container := srv.runtime.Get(name); container != nil {
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// If no signal is passed, perform regular Kill (SIGKILL + wait())
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if sig == 0 {
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if err := container.Kill(); err != nil {
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job.Errorf("Cannot kill container %s: %s", name, err)
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return engine.StatusErr
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}
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srv.LogEvent("kill", container.ID, srv.runtime.repositories.ImageName(container.Image))
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} else {
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// Otherwise, just send the requested signal
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if err := container.kill(int(sig)); err != nil {
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job.Errorf("Cannot kill container %s: %s", name, err)
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return engine.StatusErr
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}
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// FIXME: Add event for signals
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}
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} else {
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job.Errorf("No such container: %s", name)
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return engine.StatusErr
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}
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return engine.StatusOK
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}
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func (srv *Server) ContainerExport(job *engine.Job) engine.Status {
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if len(job.Args) != 1 {
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job.Errorf("Usage: %s container_id", job.Name)
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return engine.StatusErr
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}
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name := job.Args[0]
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if container := srv.runtime.Get(name); container != nil {
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data, err := container.Export()
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if err != nil {
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job.Errorf("%s: %s", name, err)
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return engine.StatusErr
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}
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// Stream the entire contents of the container (basically a volatile snapshot)
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if _, err := io.Copy(job.Stdout, data); err != nil {
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job.Errorf("%s: %s", name, err)
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return engine.StatusErr
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}
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// FIXME: factor job-specific LogEvent to engine.Job.Run()
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srv.LogEvent("export", container.ID, srv.runtime.repositories.ImageName(container.Image))
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return engine.StatusOK
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}
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job.Errorf("No such container: %s", name)
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return engine.StatusErr
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}
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// ImageExport exports all images with the given tag. All versions
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// containing the same tag are exported. The resulting output is an
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// uncompressed tar ball.
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// name is the set of tags to export.
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// out is the writer where the images are written to.
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func (srv *Server) ImageExport(job *engine.Job) engine.Status {
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if len(job.Args) != 1 {
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job.Errorf("Usage: %s CONTAINER\n", job.Name)
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return engine.StatusErr
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}
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name := job.Args[0]
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// get image json
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tempdir, err := ioutil.TempDir("", "docker-export-")
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if err != nil {
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job.Error(err)
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return engine.StatusErr
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}
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defer os.RemoveAll(tempdir)
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utils.Debugf("Serializing %s", name)
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rootRepo, err := srv.runtime.repositories.Get(name)
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if err != nil {
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job.Error(err)
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return engine.StatusErr
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}
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if rootRepo != nil {
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for _, id := range rootRepo {
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image, err := srv.ImageInspect(id)
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if err != nil {
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job.Error(err)
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return engine.StatusErr
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}
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if err := srv.exportImage(image, tempdir); err != nil {
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job.Error(err)
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return engine.StatusErr
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}
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}
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// write repositories
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rootRepoMap := map[string]Repository{}
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rootRepoMap[name] = rootRepo
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rootRepoJson, _ := json.Marshal(rootRepoMap)
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if err := ioutil.WriteFile(path.Join(tempdir, "repositories"), rootRepoJson, os.ModeAppend); err != nil {
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job.Error(err)
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return engine.StatusErr
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}
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} else {
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image, err := srv.ImageInspect(name)
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if err != nil {
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job.Error(err)
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return engine.StatusErr
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}
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if err := srv.exportImage(image, tempdir); err != nil {
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job.Error(err)
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return engine.StatusErr
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}
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}
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fs, err := archive.Tar(tempdir, archive.Uncompressed)
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if err != nil {
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job.Error(err)
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return engine.StatusErr
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}
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if _, err := io.Copy(job.Stdout, fs); err != nil {
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job.Error(err)
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return engine.StatusErr
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}
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return engine.StatusOK
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}
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func (srv *Server) exportImage(image *Image, tempdir string) error {
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for i := image; i != nil; {
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// temporary directory
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tmpImageDir := path.Join(tempdir, i.ID)
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if err := os.Mkdir(tmpImageDir, os.ModeDir); err != nil {
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if os.IsExist(err) {
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return nil
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}
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return err
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}
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var version = "1.0"
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var versionBuf = []byte(version)
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if err := ioutil.WriteFile(path.Join(tmpImageDir, "VERSION"), versionBuf, os.ModeAppend); err != nil {
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return err
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}
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// serialize json
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b, err := json.Marshal(i)
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if err != nil {
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return err
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}
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if err := ioutil.WriteFile(path.Join(tmpImageDir, "json"), b, os.ModeAppend); err != nil {
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return err
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}
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// serialize filesystem
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fs, err := i.TarLayer()
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if err != nil {
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return err
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}
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fsTar, err := os.Create(path.Join(tmpImageDir, "layer.tar"))
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if err != nil {
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return err
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}
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if _, err = io.Copy(fsTar, fs); err != nil {
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return err
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}
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fsTar.Close()
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// find parent
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if i.Parent != "" {
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i, err = srv.ImageInspect(i.Parent)
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if err != nil {
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return err
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}
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} else {
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i = nil
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}
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}
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return nil
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}
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// Loads a set of images into the repository. This is the complementary of ImageExport.
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// The input stream is an uncompressed tar ball containing images and metadata.
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func (srv *Server) ImageLoad(in io.Reader) error {
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tmpImageDir, err := ioutil.TempDir("", "docker-import-")
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if err != nil {
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return err
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}
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defer os.RemoveAll(tmpImageDir)
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var (
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repoTarFile = path.Join(tmpImageDir, "repo.tar")
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repoDir = path.Join(tmpImageDir, "repo")
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)
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tarFile, err := os.Create(repoTarFile)
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if err != nil {
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return err
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}
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if _, err := io.Copy(tarFile, in); err != nil {
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return err
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}
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tarFile.Close()
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repoFile, err := os.Open(repoTarFile)
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if err != nil {
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return err
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}
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if err := os.Mkdir(repoDir, os.ModeDir); err != nil {
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return err
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}
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if err := archive.Untar(repoFile, repoDir, nil); err != nil {
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return err
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}
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dirs, err := ioutil.ReadDir(repoDir)
|
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if err != nil {
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return err
|
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}
|
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|
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for _, d := range dirs {
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if d.IsDir() {
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if err := srv.recursiveLoad(d.Name(), tmpImageDir); err != nil {
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return err
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}
|
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}
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}
|
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|
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repositoriesJson, err := ioutil.ReadFile(path.Join(tmpImageDir, "repo", "repositories"))
|
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if err == nil {
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repositories := map[string]Repository{}
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if err := json.Unmarshal(repositoriesJson, &repositories); err != nil {
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return err
|
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}
|
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|
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for imageName, tagMap := range repositories {
|
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for tag, address := range tagMap {
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if err := srv.runtime.repositories.Set(imageName, tag, address, true); err != nil {
|
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return err
|
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}
|
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}
|
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}
|
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} else if !os.IsNotExist(err) {
|
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return err
|
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}
|
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|
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return nil
|
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}
|
|
|
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func (srv *Server) recursiveLoad(address, tmpImageDir string) error {
|
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if _, err := srv.ImageInspect(address); err != nil {
|
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utils.Debugf("Loading %s", address)
|
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|
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imageJson, err := ioutil.ReadFile(path.Join(tmpImageDir, "repo", address, "json"))
|
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if err != nil {
|
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utils.Debugf("Error reading json", err)
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return err
|
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}
|
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|
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layer, err := os.Open(path.Join(tmpImageDir, "repo", address, "layer.tar"))
|
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if err != nil {
|
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utils.Debugf("Error reading embedded tar", err)
|
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return err
|
|
}
|
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img, err := NewImgJSON(imageJson)
|
|
if err != nil {
|
|
utils.Debugf("Error unmarshalling json", err)
|
|
return err
|
|
}
|
|
if img.Parent != "" {
|
|
if !srv.runtime.graph.Exists(img.Parent) {
|
|
if err := srv.recursiveLoad(img.Parent, tmpImageDir); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
}
|
|
if err := srv.runtime.graph.Register(imageJson, layer, img); err != nil {
|
|
return err
|
|
}
|
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}
|
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utils.Debugf("Completed processing %s", address)
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|
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return nil
|
|
}
|
|
|
|
func (srv *Server) ImagesSearch(term string) ([]registry.SearchResult, error) {
|
|
r, err := registry.NewRegistry(nil, srv.HTTPRequestFactory(nil), auth.IndexServerAddress())
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
results, err := r.SearchRepositories(term)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return results.Results, nil
|
|
}
|
|
|
|
func (srv *Server) ImageInsert(name, url, path string, out io.Writer, sf *utils.StreamFormatter) error {
|
|
out = utils.NewWriteFlusher(out)
|
|
img, err := srv.runtime.repositories.LookupImage(name)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
file, err := utils.Download(url)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
defer file.Body.Close()
|
|
|
|
config, _, _, err := ParseRun([]string{img.ID, "echo", "insert", url, path}, srv.runtime.capabilities)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
c, _, err := srv.runtime.Create(config, "")
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
if err := c.Inject(utils.ProgressReader(file.Body, int(file.ContentLength), out, sf, false, "", "Downloading"), path); err != nil {
|
|
return err
|
|
}
|
|
// FIXME: Handle custom repo, tag comment, author
|
|
img, err = srv.runtime.Commit(c, "", "", img.Comment, img.Author, nil)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
out.Write(sf.FormatStatus(img.ID, ""))
|
|
return nil
|
|
}
|
|
|
|
func (srv *Server) ImagesViz(job *engine.Job) engine.Status {
|
|
images, _ := srv.runtime.graph.Map()
|
|
if images == nil {
|
|
return engine.StatusOK
|
|
}
|
|
job.Stdout.Write([]byte("digraph docker {\n"))
|
|
|
|
var (
|
|
parentImage *Image
|
|
err error
|
|
)
|
|
for _, image := range images {
|
|
parentImage, err = image.GetParent()
|
|
if err != nil {
|
|
job.Errorf("Error while getting parent image: %v", err)
|
|
return engine.StatusErr
|
|
}
|
|
if parentImage != nil {
|
|
job.Stdout.Write([]byte(" \"" + parentImage.ID + "\" -> \"" + image.ID + "\"\n"))
|
|
} else {
|
|
job.Stdout.Write([]byte(" base -> \"" + image.ID + "\" [style=invis]\n"))
|
|
}
|
|
}
|
|
|
|
reporefs := make(map[string][]string)
|
|
|
|
for name, repository := range srv.runtime.repositories.Repositories {
|
|
for tag, id := range repository {
|
|
reporefs[utils.TruncateID(id)] = append(reporefs[utils.TruncateID(id)], fmt.Sprintf("%s:%s", name, tag))
|
|
}
|
|
}
|
|
|
|
for id, repos := range reporefs {
|
|
job.Stdout.Write([]byte(" \"" + id + "\" [label=\"" + id + "\\n" + strings.Join(repos, "\\n") + "\",shape=box,fillcolor=\"paleturquoise\",style=\"filled,rounded\"];\n"))
|
|
}
|
|
job.Stdout.Write([]byte(" base [style=invisible]\n}\n"))
|
|
return engine.StatusOK
|
|
}
|
|
|
|
func (srv *Server) Images(job *engine.Job) engine.Status {
|
|
var (
|
|
allImages map[string]*Image
|
|
err error
|
|
)
|
|
if job.GetenvBool("all") {
|
|
allImages, err = srv.runtime.graph.Map()
|
|
} else {
|
|
allImages, err = srv.runtime.graph.Heads()
|
|
}
|
|
if err != nil {
|
|
job.Error(err)
|
|
return engine.StatusErr
|
|
}
|
|
lookup := make(map[string]*engine.Env)
|
|
for name, repository := range srv.runtime.repositories.Repositories {
|
|
if job.Getenv("filter") != "" {
|
|
if match, _ := path.Match(job.Getenv("filter"), name); !match {
|
|
continue
|
|
}
|
|
}
|
|
for tag, id := range repository {
|
|
image, err := srv.runtime.graph.Get(id)
|
|
if err != nil {
|
|
log.Printf("Warning: couldn't load %s from %s/%s: %s", id, name, tag, err)
|
|
continue
|
|
}
|
|
|
|
if out, exists := lookup[id]; exists {
|
|
out.SetList("RepoTags", append(out.GetList("RepoTags"), fmt.Sprintf("%s:%s", name, tag)))
|
|
} else {
|
|
out := &engine.Env{}
|
|
delete(allImages, id)
|
|
out.Set("ParentId", image.Parent)
|
|
out.SetList("RepoTags", []string{fmt.Sprintf("%s:%s", name, tag)})
|
|
out.Set("ID", image.ID)
|
|
out.SetInt64("Created", image.Created.Unix())
|
|
out.SetInt64("Size", image.Size)
|
|
out.SetInt64("VirtualSize", image.getParentsSize(0)+image.Size)
|
|
lookup[id] = out
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
outs := engine.NewTable("Created", len(lookup))
|
|
for _, value := range lookup {
|
|
outs.Add(value)
|
|
}
|
|
|
|
// Display images which aren't part of a repository/tag
|
|
if job.Getenv("filter") == "" {
|
|
for _, image := range allImages {
|
|
out := &engine.Env{}
|
|
out.Set("ParentId", image.Parent)
|
|
out.SetList("RepoTags", []string{"<none>:<none>"})
|
|
out.Set("ID", image.ID)
|
|
out.SetInt64("Created", image.Created.Unix())
|
|
out.SetInt64("Size", image.Size)
|
|
out.SetInt64("VirtualSize", image.getParentsSize(0)+image.Size)
|
|
outs.Add(out)
|
|
}
|
|
}
|
|
|
|
outs.ReverseSort()
|
|
if _, err := outs.WriteTo(job.Stdout); err != nil {
|
|
job.Error(err)
|
|
return engine.StatusErr
|
|
}
|
|
return engine.StatusOK
|
|
}
|
|
|
|
func (srv *Server) DockerInfo(job *engine.Job) engine.Status {
|
|
images, _ := srv.runtime.graph.Map()
|
|
var imgcount int
|
|
if images == nil {
|
|
imgcount = 0
|
|
} else {
|
|
imgcount = len(images)
|
|
}
|
|
lxcVersion := ""
|
|
if output, err := exec.Command("lxc-version").CombinedOutput(); err == nil {
|
|
outputStr := string(output)
|
|
if len(strings.SplitN(outputStr, ":", 2)) == 2 {
|
|
lxcVersion = strings.TrimSpace(strings.SplitN(string(output), ":", 2)[1])
|
|
}
|
|
}
|
|
kernelVersion := "<unknown>"
|
|
if kv, err := utils.GetKernelVersion(); err == nil {
|
|
kernelVersion = kv.String()
|
|
}
|
|
|
|
// if we still have the original dockerinit binary from before we copied it locally, let's return the path to that, since that's more intuitive (the copied path is trivial to derive by hand given VERSION)
|
|
initPath := utils.DockerInitPath("")
|
|
if initPath == "" {
|
|
// if that fails, we'll just return the path from the runtime
|
|
initPath = srv.runtime.sysInitPath
|
|
}
|
|
|
|
v := &engine.Env{}
|
|
v.SetInt("Containers", len(srv.runtime.List()))
|
|
v.SetInt("Images", imgcount)
|
|
v.Set("Driver", srv.runtime.driver.String())
|
|
v.SetJson("DriverStatus", srv.runtime.driver.Status())
|
|
v.SetBool("MemoryLimit", srv.runtime.capabilities.MemoryLimit)
|
|
v.SetBool("SwapLimit", srv.runtime.capabilities.SwapLimit)
|
|
v.SetBool("IPv4Forwarding", !srv.runtime.capabilities.IPv4ForwardingDisabled)
|
|
v.SetBool("Debug", os.Getenv("DEBUG") != "")
|
|
v.SetInt("NFd", utils.GetTotalUsedFds())
|
|
v.SetInt("NGoroutines", runtime.NumGoroutine())
|
|
v.Set("LXCVersion", lxcVersion)
|
|
v.SetInt("NEventsListener", len(srv.events))
|
|
v.Set("KernelVersion", kernelVersion)
|
|
v.Set("IndexServerAddress", auth.IndexServerAddress())
|
|
v.Set("InitSha1", utils.INITSHA1)
|
|
v.Set("InitPath", initPath)
|
|
if _, err := v.WriteTo(job.Stdout); err != nil {
|
|
job.Error(err)
|
|
return engine.StatusErr
|
|
}
|
|
return engine.StatusOK
|
|
}
|
|
|
|
func (srv *Server) ImageHistory(job *engine.Job) engine.Status {
|
|
if n := len(job.Args); n != 1 {
|
|
job.Errorf("Usage: %s IMAGE", job.Name)
|
|
return engine.StatusErr
|
|
}
|
|
name := job.Args[0]
|
|
image, err := srv.runtime.repositories.LookupImage(name)
|
|
if err != nil {
|
|
job.Error(err)
|
|
return engine.StatusErr
|
|
}
|
|
|
|
lookupMap := make(map[string][]string)
|
|
for name, repository := range srv.runtime.repositories.Repositories {
|
|
for tag, id := range repository {
|
|
// If the ID already has a reverse lookup, do not update it unless for "latest"
|
|
if _, exists := lookupMap[id]; !exists {
|
|
lookupMap[id] = []string{}
|
|
}
|
|
lookupMap[id] = append(lookupMap[id], name+":"+tag)
|
|
}
|
|
}
|
|
|
|
outs := engine.NewTable("Created", 0)
|
|
err = image.WalkHistory(func(img *Image) error {
|
|
out := &engine.Env{}
|
|
out.Set("ID", img.ID)
|
|
out.SetInt64("Created", img.Created.Unix())
|
|
out.Set("CreatedBy", strings.Join(img.ContainerConfig.Cmd, " "))
|
|
out.SetList("Tags", lookupMap[img.ID])
|
|
out.SetInt64("Size", img.Size)
|
|
outs.Add(out)
|
|
return nil
|
|
})
|
|
outs.ReverseSort()
|
|
if _, err := outs.WriteTo(job.Stdout); err != nil {
|
|
job.Error(err)
|
|
return engine.StatusErr
|
|
}
|
|
return engine.StatusOK
|
|
}
|
|
|
|
func (srv *Server) ContainerTop(name, psArgs string) (*APITop, error) {
|
|
if container := srv.runtime.Get(name); container != nil {
|
|
if !container.State.IsRunning() {
|
|
return nil, fmt.Errorf("Container %s is not running", name)
|
|
}
|
|
pids, err := cgroups.GetPidsForContainer(container.ID)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if len(psArgs) == 0 {
|
|
psArgs = "-ef"
|
|
}
|
|
output, err := exec.Command("ps", psArgs).Output()
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Error running ps: %s", err)
|
|
}
|
|
|
|
lines := strings.Split(string(output), "\n")
|
|
header := strings.Fields(lines[0])
|
|
procs := APITop{
|
|
Titles: header,
|
|
}
|
|
|
|
pidIndex := -1
|
|
for i, name := range header {
|
|
if name == "PID" {
|
|
pidIndex = i
|
|
}
|
|
}
|
|
if pidIndex == -1 {
|
|
return nil, errors.New("Couldn't find PID field in ps output")
|
|
}
|
|
|
|
for _, line := range lines[1:] {
|
|
if len(line) == 0 {
|
|
continue
|
|
}
|
|
fields := strings.Fields(line)
|
|
p, err := strconv.Atoi(fields[pidIndex])
|
|
if err != nil {
|
|
return nil, fmt.Errorf("Unexpected pid '%s': %s", fields[pidIndex], err)
|
|
}
|
|
|
|
for _, pid := range pids {
|
|
if pid == p {
|
|
// Make sure number of fields equals number of header titles
|
|
// merging "overhanging" fields
|
|
processes := fields[:len(procs.Titles)-1]
|
|
processes = append(processes, strings.Join(fields[len(procs.Titles)-1:], " "))
|
|
|
|
procs.Processes = append(procs.Processes, processes)
|
|
}
|
|
}
|
|
}
|
|
return &procs, nil
|
|
|
|
}
|
|
return nil, fmt.Errorf("No such container: %s", name)
|
|
}
|
|
|
|
func (srv *Server) ContainerChanges(name string) ([]archive.Change, error) {
|
|
if container := srv.runtime.Get(name); container != nil {
|
|
return container.Changes()
|
|
}
|
|
return nil, fmt.Errorf("No such container: %s", name)
|
|
}
|
|
|
|
func (srv *Server) Containers(all, size bool, n int, since, before string) []APIContainers {
|
|
var foundBefore bool
|
|
var displayed int
|
|
out := []APIContainers{}
|
|
|
|
names := map[string][]string{}
|
|
srv.runtime.containerGraph.Walk("/", func(p string, e *graphdb.Entity) error {
|
|
names[e.ID()] = append(names[e.ID()], p)
|
|
return nil
|
|
}, -1)
|
|
|
|
for _, container := range srv.runtime.List() {
|
|
if !container.State.IsRunning() && !all && n == -1 && since == "" && before == "" {
|
|
continue
|
|
}
|
|
if before != "" && !foundBefore {
|
|
if container.ID == before || utils.TruncateID(container.ID) == before {
|
|
foundBefore = true
|
|
}
|
|
continue
|
|
}
|
|
if displayed == n {
|
|
break
|
|
}
|
|
if container.ID == since || utils.TruncateID(container.ID) == since {
|
|
break
|
|
}
|
|
displayed++
|
|
c := createAPIContainer(names[container.ID], container, size, srv.runtime)
|
|
out = append(out, c)
|
|
}
|
|
return out
|
|
}
|
|
|
|
func createAPIContainer(names []string, container *Container, size bool, runtime *Runtime) APIContainers {
|
|
c := APIContainers{
|
|
ID: container.ID,
|
|
}
|
|
c.Names = names
|
|
c.Image = runtime.repositories.ImageName(container.Image)
|
|
c.Command = fmt.Sprintf("%s %s", container.Path, strings.Join(container.Args, " "))
|
|
c.Created = container.Created.Unix()
|
|
c.Status = container.State.String()
|
|
c.Ports = container.NetworkSettings.PortMappingAPI()
|
|
if size {
|
|
c.SizeRw, c.SizeRootFs = container.GetSize()
|
|
}
|
|
return c
|
|
}
|
|
func (srv *Server) ContainerCommit(job *engine.Job) engine.Status {
|
|
if len(job.Args) != 1 {
|
|
job.Errorf("Not enough arguments. Usage: %s CONTAINER\n", job.Name)
|
|
return engine.StatusErr
|
|
}
|
|
name := job.Args[0]
|
|
|
|
container := srv.runtime.Get(name)
|
|
if container == nil {
|
|
job.Errorf("No such container: %s", name)
|
|
return engine.StatusErr
|
|
}
|
|
var config Config
|
|
if err := job.GetenvJson("config", &config); err != nil {
|
|
job.Error(err)
|
|
return engine.StatusErr
|
|
}
|
|
|
|
img, err := srv.runtime.Commit(container, job.Getenv("repo"), job.Getenv("tag"), job.Getenv("comment"), job.Getenv("author"), &config)
|
|
if err != nil {
|
|
job.Error(err)
|
|
return engine.StatusErr
|
|
}
|
|
job.Printf("%s\n", img.ID)
|
|
return engine.StatusOK
|
|
}
|
|
|
|
func (srv *Server) ImageTag(job *engine.Job) engine.Status {
|
|
if len(job.Args) != 2 && len(job.Args) != 3 {
|
|
job.Errorf("Usage: %s IMAGE REPOSITORY [TAG]\n", job.Name)
|
|
return engine.StatusErr
|
|
}
|
|
var tag string
|
|
if len(job.Args) == 3 {
|
|
tag = job.Args[2]
|
|
}
|
|
if err := srv.runtime.repositories.Set(job.Args[1], tag, job.Args[0], job.GetenvBool("force")); err != nil {
|
|
job.Error(err)
|
|
return engine.StatusErr
|
|
}
|
|
return engine.StatusOK
|
|
}
|
|
|
|
func (srv *Server) pullImage(r *registry.Registry, out io.Writer, imgID, endpoint string, token []string, sf *utils.StreamFormatter) error {
|
|
history, err := r.GetRemoteHistory(imgID, endpoint, token)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
out.Write(sf.FormatProgress(utils.TruncateID(imgID), "Pulling dependent layers", nil))
|
|
// FIXME: Try to stream the images?
|
|
// FIXME: Launch the getRemoteImage() in goroutines
|
|
|
|
for i := len(history) - 1; i >= 0; i-- {
|
|
id := history[i]
|
|
|
|
// ensure no two downloads of the same layer happen at the same time
|
|
if c, err := srv.poolAdd("pull", "layer:"+id); err != nil {
|
|
utils.Errorf("Image (id: %s) pull is already running, skipping: %v", id, err)
|
|
<-c
|
|
}
|
|
defer srv.poolRemove("pull", "layer:"+id)
|
|
|
|
if !srv.runtime.graph.Exists(id) {
|
|
out.Write(sf.FormatProgress(utils.TruncateID(id), "Pulling metadata", nil))
|
|
imgJSON, imgSize, err := r.GetRemoteImageJSON(id, endpoint, token)
|
|
if err != nil {
|
|
out.Write(sf.FormatProgress(utils.TruncateID(id), "Error pulling dependent layers", nil))
|
|
// FIXME: Keep going in case of error?
|
|
return err
|
|
}
|
|
img, err := NewImgJSON(imgJSON)
|
|
if err != nil {
|
|
out.Write(sf.FormatProgress(utils.TruncateID(id), "Error pulling dependent layers", nil))
|
|
return fmt.Errorf("Failed to parse json: %s", err)
|
|
}
|
|
|
|
// Get the layer
|
|
out.Write(sf.FormatProgress(utils.TruncateID(id), "Pulling fs layer", nil))
|
|
layer, err := r.GetRemoteImageLayer(img.ID, endpoint, token)
|
|
if err != nil {
|
|
out.Write(sf.FormatProgress(utils.TruncateID(id), "Error pulling dependent layers", nil))
|
|
return err
|
|
}
|
|
defer layer.Close()
|
|
if err := srv.runtime.graph.Register(imgJSON, utils.ProgressReader(layer, imgSize, out, sf, false, utils.TruncateID(id), "Downloading"), img); err != nil {
|
|
out.Write(sf.FormatProgress(utils.TruncateID(id), "Error downloading dependent layers", nil))
|
|
return err
|
|
}
|
|
}
|
|
out.Write(sf.FormatProgress(utils.TruncateID(id), "Download complete", nil))
|
|
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (srv *Server) pullRepository(r *registry.Registry, out io.Writer, localName, remoteName, askedTag string, sf *utils.StreamFormatter, parallel bool) error {
|
|
out.Write(sf.FormatStatus("", "Pulling repository %s", localName))
|
|
|
|
repoData, err := r.GetRepositoryData(remoteName)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
utils.Debugf("Retrieving the tag list")
|
|
tagsList, err := r.GetRemoteTags(repoData.Endpoints, remoteName, repoData.Tokens)
|
|
if err != nil {
|
|
utils.Errorf("%v", err)
|
|
return err
|
|
}
|
|
|
|
for tag, id := range tagsList {
|
|
repoData.ImgList[id] = ®istry.ImgData{
|
|
ID: id,
|
|
Tag: tag,
|
|
Checksum: "",
|
|
}
|
|
}
|
|
|
|
utils.Debugf("Registering tags")
|
|
// If no tag has been specified, pull them all
|
|
if askedTag == "" {
|
|
for tag, id := range tagsList {
|
|
repoData.ImgList[id].Tag = tag
|
|
}
|
|
} else {
|
|
// Otherwise, check that the tag exists and use only that one
|
|
id, exists := tagsList[askedTag]
|
|
if !exists {
|
|
return fmt.Errorf("Tag %s not found in repository %s", askedTag, localName)
|
|
}
|
|
repoData.ImgList[id].Tag = askedTag
|
|
}
|
|
|
|
errors := make(chan error)
|
|
for _, image := range repoData.ImgList {
|
|
downloadImage := func(img *registry.ImgData) {
|
|
if askedTag != "" && img.Tag != askedTag {
|
|
utils.Debugf("(%s) does not match %s (id: %s), skipping", img.Tag, askedTag, img.ID)
|
|
if parallel {
|
|
errors <- nil
|
|
}
|
|
return
|
|
}
|
|
|
|
if img.Tag == "" {
|
|
utils.Debugf("Image (id: %s) present in this repository but untagged, skipping", img.ID)
|
|
if parallel {
|
|
errors <- nil
|
|
}
|
|
return
|
|
}
|
|
|
|
// ensure no two downloads of the same image happen at the same time
|
|
if c, err := srv.poolAdd("pull", "img:"+img.ID); err != nil {
|
|
if c != nil {
|
|
out.Write(sf.FormatProgress(utils.TruncateID(img.ID), "Layer already being pulled by another client. Waiting.", nil))
|
|
<-c
|
|
out.Write(sf.FormatProgress(utils.TruncateID(img.ID), "Download complete", nil))
|
|
} else {
|
|
utils.Errorf("Image (id: %s) pull is already running, skipping: %v", img.ID, err)
|
|
}
|
|
if parallel {
|
|
errors <- nil
|
|
}
|
|
return
|
|
}
|
|
defer srv.poolRemove("pull", "img:"+img.ID)
|
|
|
|
out.Write(sf.FormatProgress(utils.TruncateID(img.ID), fmt.Sprintf("Pulling image (%s) from %s", img.Tag, localName), nil))
|
|
success := false
|
|
var lastErr error
|
|
for _, ep := range repoData.Endpoints {
|
|
out.Write(sf.FormatProgress(utils.TruncateID(img.ID), fmt.Sprintf("Pulling image (%s) from %s, endpoint: %s", img.Tag, localName, ep), nil))
|
|
if err := srv.pullImage(r, out, img.ID, ep, repoData.Tokens, sf); err != nil {
|
|
// Its not ideal that only the last error is returned, it would be better to concatenate the errors.
|
|
// As the error is also given to the output stream the user will see the error.
|
|
lastErr = err
|
|
out.Write(sf.FormatProgress(utils.TruncateID(img.ID), fmt.Sprintf("Error pulling image (%s) from %s, endpoint: %s, %s", img.Tag, localName, ep, err), nil))
|
|
continue
|
|
}
|
|
success = true
|
|
break
|
|
}
|
|
if !success {
|
|
out.Write(sf.FormatProgress(utils.TruncateID(img.ID), fmt.Sprintf("Error pulling image (%s) from %s, %s", img.Tag, localName, lastErr), nil))
|
|
if parallel {
|
|
errors <- fmt.Errorf("Could not find repository on any of the indexed registries.")
|
|
return
|
|
}
|
|
}
|
|
out.Write(sf.FormatProgress(utils.TruncateID(img.ID), "Download complete", nil))
|
|
|
|
if parallel {
|
|
errors <- nil
|
|
}
|
|
}
|
|
|
|
if parallel {
|
|
go downloadImage(image)
|
|
} else {
|
|
downloadImage(image)
|
|
}
|
|
}
|
|
if parallel {
|
|
var lastError error
|
|
for i := 0; i < len(repoData.ImgList); i++ {
|
|
if err := <-errors; err != nil {
|
|
lastError = err
|
|
}
|
|
}
|
|
if lastError != nil {
|
|
return lastError
|
|
}
|
|
|
|
}
|
|
for tag, id := range tagsList {
|
|
if askedTag != "" && tag != askedTag {
|
|
continue
|
|
}
|
|
if err := srv.runtime.repositories.Set(localName, tag, id, true); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
if err := srv.runtime.repositories.Save(); err != nil {
|
|
return err
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (srv *Server) poolAdd(kind, key string) (chan struct{}, error) {
|
|
srv.Lock()
|
|
defer srv.Unlock()
|
|
|
|
if c, exists := srv.pullingPool[key]; exists {
|
|
return c, fmt.Errorf("pull %s is already in progress", key)
|
|
}
|
|
if c, exists := srv.pushingPool[key]; exists {
|
|
return c, fmt.Errorf("push %s is already in progress", key)
|
|
}
|
|
|
|
c := make(chan struct{})
|
|
switch kind {
|
|
case "pull":
|
|
srv.pullingPool[key] = c
|
|
case "push":
|
|
srv.pushingPool[key] = c
|
|
default:
|
|
return nil, fmt.Errorf("Unknown pool type")
|
|
}
|
|
return c, nil
|
|
}
|
|
|
|
func (srv *Server) poolRemove(kind, key string) error {
|
|
srv.Lock()
|
|
defer srv.Unlock()
|
|
switch kind {
|
|
case "pull":
|
|
if c, exists := srv.pullingPool[key]; exists {
|
|
close(c)
|
|
delete(srv.pullingPool, key)
|
|
}
|
|
case "push":
|
|
if c, exists := srv.pushingPool[key]; exists {
|
|
close(c)
|
|
delete(srv.pushingPool, key)
|
|
}
|
|
default:
|
|
return fmt.Errorf("Unknown pool type")
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (srv *Server) ImagePull(localName string, tag string, out io.Writer, sf *utils.StreamFormatter, authConfig *auth.AuthConfig, metaHeaders map[string][]string, parallel bool) error {
|
|
out = utils.NewWriteFlusher(out)
|
|
|
|
c, err := srv.poolAdd("pull", localName+":"+tag)
|
|
if err != nil {
|
|
if c != nil {
|
|
// Another pull of the same repository is already taking place; just wait for it to finish
|
|
out.Write(sf.FormatStatus("", "Repository %s already being pulled by another client. Waiting.", localName))
|
|
<-c
|
|
return nil
|
|
}
|
|
return err
|
|
}
|
|
defer srv.poolRemove("pull", localName+":"+tag)
|
|
|
|
// Resolve the Repository name from fqn to endpoint + name
|
|
endpoint, remoteName, err := registry.ResolveRepositoryName(localName)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
r, err := registry.NewRegistry(authConfig, srv.HTTPRequestFactory(metaHeaders), endpoint)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
if endpoint == auth.IndexServerAddress() {
|
|
// If pull "index.docker.io/foo/bar", it's stored locally under "foo/bar"
|
|
localName = remoteName
|
|
}
|
|
|
|
if err = srv.pullRepository(r, out, localName, remoteName, tag, sf, parallel); err != nil {
|
|
return err
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
// Retrieve the all the images to be uploaded in the correct order
|
|
// Note: we can't use a map as it is not ordered
|
|
func (srv *Server) getImageList(localRepo map[string]string) ([][]*registry.ImgData, error) {
|
|
imgList := map[string]*registry.ImgData{}
|
|
depGraph := utils.NewDependencyGraph()
|
|
|
|
for tag, id := range localRepo {
|
|
img, err := srv.runtime.graph.Get(id)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
depGraph.NewNode(img.ID)
|
|
img.WalkHistory(func(current *Image) error {
|
|
imgList[current.ID] = ®istry.ImgData{
|
|
ID: current.ID,
|
|
Tag: tag,
|
|
}
|
|
parent, err := current.GetParent()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if parent == nil {
|
|
return nil
|
|
}
|
|
depGraph.NewNode(parent.ID)
|
|
depGraph.AddDependency(current.ID, parent.ID)
|
|
return nil
|
|
})
|
|
}
|
|
|
|
traversalMap, err := depGraph.GenerateTraversalMap()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
utils.Debugf("Traversal map: %v", traversalMap)
|
|
result := [][]*registry.ImgData{}
|
|
for _, round := range traversalMap {
|
|
dataRound := []*registry.ImgData{}
|
|
for _, imgID := range round {
|
|
dataRound = append(dataRound, imgList[imgID])
|
|
}
|
|
result = append(result, dataRound)
|
|
}
|
|
return result, nil
|
|
}
|
|
|
|
func flatten(slc [][]*registry.ImgData) []*registry.ImgData {
|
|
result := []*registry.ImgData{}
|
|
for _, x := range slc {
|
|
result = append(result, x...)
|
|
}
|
|
return result
|
|
}
|
|
|
|
func (srv *Server) pushRepository(r *registry.Registry, out io.Writer, localName, remoteName string, localRepo map[string]string, sf *utils.StreamFormatter) error {
|
|
out = utils.NewWriteFlusher(out)
|
|
imgList, err := srv.getImageList(localRepo)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
flattenedImgList := flatten(imgList)
|
|
out.Write(sf.FormatStatus("", "Sending image list"))
|
|
|
|
var repoData *registry.RepositoryData
|
|
repoData, err = r.PushImageJSONIndex(remoteName, flattenedImgList, false, nil)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
for _, ep := range repoData.Endpoints {
|
|
out.Write(sf.FormatStatus("", "Pushing repository %s (%d tags)", localName, len(localRepo)))
|
|
// This section can not be parallelized (each round depends on the previous one)
|
|
for i, round := range imgList {
|
|
// FIXME: This section can be parallelized
|
|
for _, elem := range round {
|
|
var pushTags func() error
|
|
pushTags = func() error {
|
|
if i < (len(imgList) - 1) {
|
|
// Only tag the top layer in the repository
|
|
return nil
|
|
}
|
|
|
|
out.Write(sf.FormatStatus("", "Pushing tags for rev [%s] on {%s}", utils.TruncateID(elem.ID), ep+"repositories/"+remoteName+"/tags/"+elem.Tag))
|
|
if err := r.PushRegistryTag(remoteName, elem.ID, elem.Tag, ep, repoData.Tokens); err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
if _, exists := repoData.ImgList[elem.ID]; exists {
|
|
if err := pushTags(); err != nil {
|
|
return err
|
|
}
|
|
out.Write(sf.FormatProgress(utils.TruncateID(elem.ID), "Image already pushed, skipping", nil))
|
|
continue
|
|
} else if r.LookupRemoteImage(elem.ID, ep, repoData.Tokens) {
|
|
if err := pushTags(); err != nil {
|
|
return err
|
|
}
|
|
out.Write(sf.FormatProgress(utils.TruncateID(elem.ID), "Image already pushed, skipping", nil))
|
|
continue
|
|
}
|
|
checksum, err := srv.pushImage(r, out, remoteName, elem.ID, ep, repoData.Tokens, sf)
|
|
if err != nil {
|
|
// FIXME: Continue on error?
|
|
return err
|
|
}
|
|
elem.Checksum = checksum
|
|
|
|
if err := pushTags(); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
if _, err := r.PushImageJSONIndex(remoteName, flattenedImgList, true, repoData.Endpoints); err != nil {
|
|
return err
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (srv *Server) pushImage(r *registry.Registry, out io.Writer, remote, imgID, ep string, token []string, sf *utils.StreamFormatter) (checksum string, err error) {
|
|
out = utils.NewWriteFlusher(out)
|
|
jsonRaw, err := ioutil.ReadFile(path.Join(srv.runtime.graph.Root, imgID, "json"))
|
|
if err != nil {
|
|
return "", fmt.Errorf("Cannot retrieve the path for {%s}: %s", imgID, err)
|
|
}
|
|
out.Write(sf.FormatProgress(utils.TruncateID(imgID), "Pushing", nil))
|
|
|
|
imgData := ®istry.ImgData{
|
|
ID: imgID,
|
|
}
|
|
|
|
// Send the json
|
|
if err := r.PushImageJSONRegistry(imgData, jsonRaw, ep, token); err != nil {
|
|
if err == registry.ErrAlreadyExists {
|
|
out.Write(sf.FormatProgress(utils.TruncateID(imgData.ID), "Image already pushed, skipping", nil))
|
|
return "", nil
|
|
}
|
|
return "", err
|
|
}
|
|
|
|
layerData, err := srv.runtime.graph.TempLayerArchive(imgID, archive.Uncompressed, sf, out)
|
|
if err != nil {
|
|
return "", fmt.Errorf("Failed to generate layer archive: %s", err)
|
|
}
|
|
defer os.RemoveAll(layerData.Name())
|
|
|
|
// Send the layer
|
|
checksum, err = r.PushImageLayerRegistry(imgData.ID, utils.ProgressReader(layerData, int(layerData.Size), out, sf, false, utils.TruncateID(imgData.ID), "Pushing"), ep, token, jsonRaw)
|
|
if err != nil {
|
|
return "", err
|
|
}
|
|
imgData.Checksum = checksum
|
|
// Send the checksum
|
|
if err := r.PushImageChecksumRegistry(imgData, ep, token); err != nil {
|
|
return "", err
|
|
}
|
|
|
|
out.Write(sf.FormatProgress(utils.TruncateID(imgData.ID), "Image successfully pushed", nil))
|
|
return imgData.Checksum, nil
|
|
}
|
|
|
|
// FIXME: Allow to interrupt current push when new push of same image is done.
|
|
func (srv *Server) ImagePush(localName string, out io.Writer, sf *utils.StreamFormatter, authConfig *auth.AuthConfig, metaHeaders map[string][]string) error {
|
|
if _, err := srv.poolAdd("push", localName); err != nil {
|
|
return err
|
|
}
|
|
defer srv.poolRemove("push", localName)
|
|
|
|
// Resolve the Repository name from fqn to endpoint + name
|
|
endpoint, remoteName, err := registry.ResolveRepositoryName(localName)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
out = utils.NewWriteFlusher(out)
|
|
img, err := srv.runtime.graph.Get(localName)
|
|
r, err2 := registry.NewRegistry(authConfig, srv.HTTPRequestFactory(metaHeaders), endpoint)
|
|
if err2 != nil {
|
|
return err2
|
|
}
|
|
|
|
if err != nil {
|
|
reposLen := len(srv.runtime.repositories.Repositories[localName])
|
|
out.Write(sf.FormatStatus("", "The push refers to a repository [%s] (len: %d)", localName, reposLen))
|
|
// If it fails, try to get the repository
|
|
if localRepo, exists := srv.runtime.repositories.Repositories[localName]; exists {
|
|
if err := srv.pushRepository(r, out, localName, remoteName, localRepo, sf); err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
return err
|
|
}
|
|
|
|
var token []string
|
|
out.Write(sf.FormatStatus("", "The push refers to an image: [%s]", localName))
|
|
if _, err := srv.pushImage(r, out, remoteName, img.ID, endpoint, token, sf); err != nil {
|
|
return err
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (srv *Server) ImageImport(src, repo, tag string, in io.Reader, out io.Writer, sf *utils.StreamFormatter) error {
|
|
var archive io.Reader
|
|
var resp *http.Response
|
|
|
|
if src == "-" {
|
|
archive = in
|
|
} else {
|
|
u, err := url.Parse(src)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if u.Scheme == "" {
|
|
u.Scheme = "http"
|
|
u.Host = src
|
|
u.Path = ""
|
|
}
|
|
out.Write(sf.FormatStatus("", "Downloading from %s", u))
|
|
// Download with curl (pretty progress bar)
|
|
// If curl is not available, fallback to http.Get()
|
|
resp, err = utils.Download(u.String())
|
|
if err != nil {
|
|
return err
|
|
}
|
|
archive = utils.ProgressReader(resp.Body, int(resp.ContentLength), out, sf, true, "", "Importing")
|
|
}
|
|
img, err := srv.runtime.graph.Create(archive, nil, "Imported from "+src, "", nil)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
// Optionally register the image at REPO/TAG
|
|
if repo != "" {
|
|
if err := srv.runtime.repositories.Set(repo, tag, img.ID, true); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
out.Write(sf.FormatStatus("", img.ID))
|
|
return nil
|
|
}
|
|
|
|
func (srv *Server) ContainerCreate(job *engine.Job) engine.Status {
|
|
var name string
|
|
if len(job.Args) == 1 {
|
|
name = job.Args[0]
|
|
} else if len(job.Args) > 1 {
|
|
job.Printf("Usage: %s", job.Name)
|
|
return engine.StatusErr
|
|
}
|
|
var config Config
|
|
if err := job.ExportEnv(&config); err != nil {
|
|
job.Error(err)
|
|
return engine.StatusErr
|
|
}
|
|
if config.Memory != 0 && config.Memory < 524288 {
|
|
job.Errorf("Minimum memory limit allowed is 512k")
|
|
return engine.StatusErr
|
|
}
|
|
if config.Memory > 0 && !srv.runtime.capabilities.MemoryLimit {
|
|
config.Memory = 0
|
|
}
|
|
if config.Memory > 0 && !srv.runtime.capabilities.SwapLimit {
|
|
config.MemorySwap = -1
|
|
}
|
|
container, buildWarnings, err := srv.runtime.Create(&config, name)
|
|
if err != nil {
|
|
if srv.runtime.graph.IsNotExist(err) {
|
|
_, tag := utils.ParseRepositoryTag(config.Image)
|
|
if tag == "" {
|
|
tag = DEFAULTTAG
|
|
}
|
|
job.Errorf("No such image: %s (tag: %s)", config.Image, tag)
|
|
return engine.StatusErr
|
|
}
|
|
job.Error(err)
|
|
return engine.StatusErr
|
|
}
|
|
srv.LogEvent("create", container.ID, srv.runtime.repositories.ImageName(container.Image))
|
|
// FIXME: this is necessary because runtime.Create might return a nil container
|
|
// with a non-nil error. This should not happen! Once it's fixed we
|
|
// can remove this workaround.
|
|
if container != nil {
|
|
job.Printf("%s\n", container.ID)
|
|
}
|
|
for _, warning := range buildWarnings {
|
|
job.Errorf("%s\n", warning)
|
|
}
|
|
return engine.StatusOK
|
|
}
|
|
|
|
func (srv *Server) ContainerRestart(job *engine.Job) engine.Status {
|
|
if len(job.Args) != 1 {
|
|
job.Errorf("Usage: %s CONTAINER\n", job.Name)
|
|
return engine.StatusErr
|
|
}
|
|
name := job.Args[0]
|
|
t := job.GetenvInt("t")
|
|
if t == -1 {
|
|
t = 10
|
|
}
|
|
if container := srv.runtime.Get(name); container != nil {
|
|
if err := container.Restart(int(t)); err != nil {
|
|
job.Errorf("Cannot restart container %s: %s\n", name, err)
|
|
return engine.StatusErr
|
|
}
|
|
srv.LogEvent("restart", container.ID, srv.runtime.repositories.ImageName(container.Image))
|
|
} else {
|
|
job.Errorf("No such container: %s\n", name)
|
|
return engine.StatusErr
|
|
}
|
|
return engine.StatusOK
|
|
|
|
}
|
|
|
|
func (srv *Server) ContainerDestroy(job *engine.Job) engine.Status {
|
|
if len(job.Args) != 1 {
|
|
job.Errorf("Not enough arguments. Usage: %s CONTAINER\n", job.Name)
|
|
return engine.StatusErr
|
|
}
|
|
name := job.Args[0]
|
|
removeVolume := job.GetenvBool("removeVolume")
|
|
removeLink := job.GetenvBool("removeLink")
|
|
|
|
container := srv.runtime.Get(name)
|
|
|
|
if removeLink {
|
|
if container == nil {
|
|
job.Errorf("No such link: %s", name)
|
|
return engine.StatusErr
|
|
}
|
|
name, err := getFullName(name)
|
|
if err != nil {
|
|
job.Error(err)
|
|
return engine.StatusErr
|
|
}
|
|
parent, n := path.Split(name)
|
|
if parent == "/" {
|
|
job.Errorf("Conflict, cannot remove the default name of the container")
|
|
return engine.StatusErr
|
|
}
|
|
pe := srv.runtime.containerGraph.Get(parent)
|
|
if pe == nil {
|
|
job.Errorf("Cannot get parent %s for name %s", parent, name)
|
|
return engine.StatusErr
|
|
}
|
|
parentContainer := srv.runtime.Get(pe.ID())
|
|
|
|
if parentContainer != nil && parentContainer.activeLinks != nil {
|
|
if link, exists := parentContainer.activeLinks[n]; exists {
|
|
link.Disable()
|
|
} else {
|
|
utils.Debugf("Could not find active link for %s", name)
|
|
}
|
|
}
|
|
|
|
if err := srv.runtime.containerGraph.Delete(name); err != nil {
|
|
job.Error(err)
|
|
return engine.StatusErr
|
|
}
|
|
return engine.StatusOK
|
|
}
|
|
|
|
if container != nil {
|
|
if container.State.IsRunning() {
|
|
job.Errorf("Impossible to remove a running container, please stop it first")
|
|
return engine.StatusErr
|
|
}
|
|
volumes := make(map[string]struct{})
|
|
|
|
binds := make(map[string]struct{})
|
|
|
|
for _, bind := range container.hostConfig.Binds {
|
|
splitBind := strings.Split(bind, ":")
|
|
source := splitBind[0]
|
|
binds[source] = struct{}{}
|
|
}
|
|
|
|
// Store all the deleted containers volumes
|
|
for _, volumeId := range container.Volumes {
|
|
|
|
// Skip the volumes mounted from external
|
|
if _, exists := binds[volumeId]; exists {
|
|
continue
|
|
}
|
|
|
|
volumeId = strings.TrimSuffix(volumeId, "/layer")
|
|
volumeId = filepath.Base(volumeId)
|
|
volumes[volumeId] = struct{}{}
|
|
}
|
|
if err := srv.runtime.Destroy(container); err != nil {
|
|
job.Errorf("Cannot destroy container %s: %s", name, err)
|
|
return engine.StatusErr
|
|
}
|
|
srv.LogEvent("destroy", container.ID, srv.runtime.repositories.ImageName(container.Image))
|
|
|
|
if removeVolume {
|
|
// Retrieve all volumes from all remaining containers
|
|
usedVolumes := make(map[string]*Container)
|
|
for _, container := range srv.runtime.List() {
|
|
for _, containerVolumeId := range container.Volumes {
|
|
usedVolumes[containerVolumeId] = container
|
|
}
|
|
}
|
|
|
|
for volumeId := range volumes {
|
|
// If the requested volu
|
|
if c, exists := usedVolumes[volumeId]; exists {
|
|
log.Printf("The volume %s is used by the container %s. Impossible to remove it. Skipping.\n", volumeId, c.ID)
|
|
continue
|
|
}
|
|
if err := srv.runtime.volumes.Delete(volumeId); err != nil {
|
|
job.Error(err)
|
|
return engine.StatusErr
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
job.Errorf("No such container: %s", name)
|
|
return engine.StatusErr
|
|
}
|
|
return engine.StatusOK
|
|
}
|
|
|
|
var ErrImageReferenced = errors.New("Image referenced by a repository")
|
|
|
|
func (srv *Server) deleteImageAndChildren(id string, imgs *[]APIRmi, byParents map[string][]*Image) error {
|
|
// If the image is referenced by a repo, do not delete
|
|
if len(srv.runtime.repositories.ByID()[id]) != 0 {
|
|
return ErrImageReferenced
|
|
}
|
|
// If the image is not referenced but has children, go recursive
|
|
referenced := false
|
|
for _, img := range byParents[id] {
|
|
if err := srv.deleteImageAndChildren(img.ID, imgs, byParents); err != nil {
|
|
if err != ErrImageReferenced {
|
|
return err
|
|
}
|
|
referenced = true
|
|
}
|
|
}
|
|
if referenced {
|
|
return ErrImageReferenced
|
|
}
|
|
|
|
// If the image is not referenced and has no children, remove it
|
|
byParents, err := srv.runtime.graph.ByParent()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if len(byParents[id]) == 0 && srv.canDeleteImage(id) == nil {
|
|
if err := srv.runtime.repositories.DeleteAll(id); err != nil {
|
|
return err
|
|
}
|
|
err := srv.runtime.graph.Delete(id)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
*imgs = append(*imgs, APIRmi{Deleted: id})
|
|
srv.LogEvent("delete", id, "")
|
|
return nil
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (srv *Server) deleteImageParents(img *Image, imgs *[]APIRmi) error {
|
|
if img.Parent != "" {
|
|
parent, err := srv.runtime.graph.Get(img.Parent)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
byParents, err := srv.runtime.graph.ByParent()
|
|
if err != nil {
|
|
return err
|
|
}
|
|
// Remove all children images
|
|
if err := srv.deleteImageAndChildren(img.Parent, imgs, byParents); err != nil {
|
|
return err
|
|
}
|
|
return srv.deleteImageParents(parent, imgs)
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (srv *Server) deleteImage(img *Image, repoName, tag string) ([]APIRmi, error) {
|
|
var (
|
|
imgs = []APIRmi{}
|
|
tags = []string{}
|
|
)
|
|
|
|
//If delete by id, see if the id belong only to one repository
|
|
if repoName == "" {
|
|
for _, repoAndTag := range srv.runtime.repositories.ByID()[img.ID] {
|
|
parsedRepo, parsedTag := utils.ParseRepositoryTag(repoAndTag)
|
|
if repoName == "" || repoName == parsedRepo {
|
|
repoName = parsedRepo
|
|
if parsedTag != "" {
|
|
tags = append(tags, parsedTag)
|
|
}
|
|
} else if repoName != parsedRepo {
|
|
// the id belongs to multiple repos, like base:latest and user:test,
|
|
// in that case return conflict
|
|
return nil, fmt.Errorf("Conflict, cannot delete image %s because it is tagged in multiple repositories", utils.TruncateID(img.ID))
|
|
}
|
|
}
|
|
} else {
|
|
tags = append(tags, tag)
|
|
}
|
|
|
|
//Untag the current image
|
|
for _, tag := range tags {
|
|
tagDeleted, err := srv.runtime.repositories.Delete(repoName, tag)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if tagDeleted {
|
|
imgs = append(imgs, APIRmi{Untagged: img.ID})
|
|
srv.LogEvent("untag", img.ID, "")
|
|
}
|
|
}
|
|
|
|
if len(srv.runtime.repositories.ByID()[img.ID]) == 0 {
|
|
if err := srv.deleteImageAndChildren(img.ID, &imgs, nil); err != nil {
|
|
if err != ErrImageReferenced {
|
|
return imgs, err
|
|
}
|
|
} else if err := srv.deleteImageParents(img, &imgs); err != nil {
|
|
if err != ErrImageReferenced {
|
|
return imgs, err
|
|
}
|
|
}
|
|
}
|
|
return imgs, nil
|
|
}
|
|
|
|
func (srv *Server) ImageDelete(name string, autoPrune bool) ([]APIRmi, error) {
|
|
var (
|
|
repository, tag string
|
|
img, err = srv.runtime.repositories.LookupImage(name)
|
|
)
|
|
if err != nil {
|
|
return nil, fmt.Errorf("No such image: %s", name)
|
|
}
|
|
|
|
// FIXME: What does autoPrune mean ?
|
|
if !autoPrune {
|
|
if err := srv.runtime.graph.Delete(img.ID); err != nil {
|
|
return nil, fmt.Errorf("Cannot delete image %s: %s", name, err)
|
|
}
|
|
return nil, nil
|
|
}
|
|
|
|
if !strings.Contains(img.ID, name) {
|
|
repository, tag = utils.ParseRepositoryTag(name)
|
|
}
|
|
|
|
// If we have a repo and the image is not referenced anywhere else
|
|
// then just perform an untag and do not validate.
|
|
//
|
|
// i.e. only validate if we are performing an actual delete and not
|
|
// an untag op
|
|
if repository != "" && len(srv.runtime.repositories.ByID()[img.ID]) == 1 {
|
|
// Prevent deletion if image is used by a container
|
|
if err := srv.canDeleteImage(img.ID); err != nil {
|
|
return nil, err
|
|
}
|
|
}
|
|
return srv.deleteImage(img, repository, tag)
|
|
}
|
|
|
|
func (srv *Server) canDeleteImage(imgID string) error {
|
|
for _, container := range srv.runtime.List() {
|
|
parent, err := srv.runtime.repositories.LookupImage(container.Image)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
|
|
if err := parent.WalkHistory(func(p *Image) error {
|
|
if imgID == p.ID {
|
|
return fmt.Errorf("Conflict, cannot delete %s because the container %s is using it", utils.TruncateID(imgID), utils.TruncateID(container.ID))
|
|
}
|
|
return nil
|
|
}); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (srv *Server) ImageGetCached(imgID string, config *Config) (*Image, error) {
|
|
|
|
// Retrieve all images
|
|
images, err := srv.runtime.graph.Map()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
// Store the tree in a map of map (map[parentId][childId])
|
|
imageMap := make(map[string]map[string]struct{})
|
|
for _, img := range images {
|
|
if _, exists := imageMap[img.Parent]; !exists {
|
|
imageMap[img.Parent] = make(map[string]struct{})
|
|
}
|
|
imageMap[img.Parent][img.ID] = struct{}{}
|
|
}
|
|
|
|
// Loop on the children of the given image and check the config
|
|
var match *Image
|
|
for elem := range imageMap[imgID] {
|
|
img, err := srv.runtime.graph.Get(elem)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
if CompareConfig(&img.ContainerConfig, config) {
|
|
if match == nil || match.Created.Before(img.Created) {
|
|
match = img
|
|
}
|
|
}
|
|
}
|
|
return match, nil
|
|
}
|
|
|
|
func (srv *Server) RegisterLinks(container *Container, hostConfig *HostConfig) error {
|
|
runtime := srv.runtime
|
|
|
|
if hostConfig != nil && hostConfig.Links != nil {
|
|
for _, l := range hostConfig.Links {
|
|
parts, err := parseLink(l)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
child, err := srv.runtime.GetByName(parts["name"])
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if child == nil {
|
|
return fmt.Errorf("Could not get container for %s", parts["name"])
|
|
}
|
|
if err := runtime.RegisterLink(container, child, parts["alias"]); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
|
|
// After we load all the links into the runtime
|
|
// set them to nil on the hostconfig
|
|
hostConfig.Links = nil
|
|
if err := container.writeHostConfig(); err != nil {
|
|
return err
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (srv *Server) ContainerStart(job *engine.Job) engine.Status {
|
|
if len(job.Args) < 1 {
|
|
job.Errorf("Usage: %s container_id", job.Name)
|
|
return engine.StatusErr
|
|
}
|
|
name := job.Args[0]
|
|
runtime := srv.runtime
|
|
container := runtime.Get(name)
|
|
|
|
if container == nil {
|
|
job.Errorf("No such container: %s", name)
|
|
return engine.StatusErr
|
|
}
|
|
// If no environment was set, then no hostconfig was passed.
|
|
if len(job.Environ()) > 0 {
|
|
var hostConfig HostConfig
|
|
if err := job.ExportEnv(&hostConfig); err != nil {
|
|
job.Error(err)
|
|
return engine.StatusErr
|
|
}
|
|
// Validate the HostConfig binds. Make sure that:
|
|
// 1) the source of a bind mount isn't /
|
|
// The bind mount "/:/foo" isn't allowed.
|
|
// 2) Check that the source exists
|
|
// The source to be bind mounted must exist.
|
|
for _, bind := range hostConfig.Binds {
|
|
splitBind := strings.Split(bind, ":")
|
|
source := splitBind[0]
|
|
|
|
// refuse to bind mount "/" to the container
|
|
if source == "/" {
|
|
job.Errorf("Invalid bind mount '%s' : source can't be '/'", bind)
|
|
return engine.StatusErr
|
|
}
|
|
|
|
// ensure the source exists on the host
|
|
_, err := os.Stat(source)
|
|
if err != nil && os.IsNotExist(err) {
|
|
job.Errorf("Invalid bind mount '%s' : source doesn't exist", bind)
|
|
return engine.StatusErr
|
|
}
|
|
}
|
|
// Register any links from the host config before starting the container
|
|
if err := srv.RegisterLinks(container, &hostConfig); err != nil {
|
|
job.Error(err)
|
|
return engine.StatusErr
|
|
}
|
|
container.hostConfig = &hostConfig
|
|
container.ToDisk()
|
|
}
|
|
if err := container.Start(); err != nil {
|
|
job.Errorf("Cannot start container %s: %s", name, err)
|
|
return engine.StatusErr
|
|
}
|
|
srv.LogEvent("start", container.ID, runtime.repositories.ImageName(container.Image))
|
|
|
|
return engine.StatusOK
|
|
}
|
|
|
|
func (srv *Server) ContainerStop(job *engine.Job) engine.Status {
|
|
if len(job.Args) != 1 {
|
|
job.Errorf("Usage: %s CONTAINER\n", job.Name)
|
|
return engine.StatusErr
|
|
}
|
|
name := job.Args[0]
|
|
t := job.GetenvInt("t")
|
|
if t == -1 {
|
|
t = 10
|
|
}
|
|
if container := srv.runtime.Get(name); container != nil {
|
|
if err := container.Stop(int(t)); err != nil {
|
|
job.Errorf("Cannot stop container %s: %s\n", name, err)
|
|
return engine.StatusErr
|
|
}
|
|
srv.LogEvent("stop", container.ID, srv.runtime.repositories.ImageName(container.Image))
|
|
} else {
|
|
job.Errorf("No such container: %s\n", name)
|
|
return engine.StatusErr
|
|
}
|
|
return engine.StatusOK
|
|
}
|
|
|
|
func (srv *Server) ContainerWait(job *engine.Job) engine.Status {
|
|
if len(job.Args) != 1 {
|
|
job.Errorf("Usage: %s", job.Name)
|
|
return engine.StatusErr
|
|
}
|
|
name := job.Args[0]
|
|
if container := srv.runtime.Get(name); container != nil {
|
|
status := container.Wait()
|
|
job.Printf("%d\n", status)
|
|
return engine.StatusOK
|
|
}
|
|
job.Errorf("%s: no such container: %s", job.Name, name)
|
|
return engine.StatusErr
|
|
}
|
|
|
|
func (srv *Server) ContainerResize(job *engine.Job) engine.Status {
|
|
if len(job.Args) != 3 {
|
|
job.Errorf("Not enough arguments. Usage: %s CONTAINER HEIGHT WIDTH\n", job.Name)
|
|
return engine.StatusErr
|
|
}
|
|
name := job.Args[0]
|
|
height, err := strconv.Atoi(job.Args[1])
|
|
if err != nil {
|
|
job.Error(err)
|
|
return engine.StatusErr
|
|
}
|
|
width, err := strconv.Atoi(job.Args[2])
|
|
if err != nil {
|
|
job.Error(err)
|
|
return engine.StatusErr
|
|
}
|
|
if container := srv.runtime.Get(name); container != nil {
|
|
if err := container.Resize(height, width); err != nil {
|
|
job.Error(err)
|
|
return engine.StatusErr
|
|
}
|
|
return engine.StatusOK
|
|
}
|
|
job.Errorf("No such container: %s", name)
|
|
return engine.StatusErr
|
|
}
|
|
|
|
func (srv *Server) ContainerAttach(name string, logs, stream, stdin, stdout, stderr bool, inStream io.ReadCloser, outStream, errStream io.Writer) error {
|
|
container := srv.runtime.Get(name)
|
|
if container == nil {
|
|
return fmt.Errorf("No such container: %s", name)
|
|
}
|
|
|
|
//logs
|
|
if logs {
|
|
cLog, err := container.ReadLog("json")
|
|
if err != nil && os.IsNotExist(err) {
|
|
// Legacy logs
|
|
utils.Errorf("Old logs format")
|
|
if stdout {
|
|
cLog, err := container.ReadLog("stdout")
|
|
if err != nil {
|
|
utils.Errorf("Error reading logs (stdout): %s", err)
|
|
} else if _, err := io.Copy(outStream, cLog); err != nil {
|
|
utils.Errorf("Error streaming logs (stdout): %s", err)
|
|
}
|
|
}
|
|
if stderr {
|
|
cLog, err := container.ReadLog("stderr")
|
|
if err != nil {
|
|
utils.Errorf("Error reading logs (stderr): %s", err)
|
|
} else if _, err := io.Copy(errStream, cLog); err != nil {
|
|
utils.Errorf("Error streaming logs (stderr): %s", err)
|
|
}
|
|
}
|
|
} else if err != nil {
|
|
utils.Errorf("Error reading logs (json): %s", err)
|
|
} else {
|
|
dec := json.NewDecoder(cLog)
|
|
for {
|
|
l := &utils.JSONLog{}
|
|
|
|
if err := dec.Decode(l); err == io.EOF {
|
|
break
|
|
} else if err != nil {
|
|
utils.Errorf("Error streaming logs: %s", err)
|
|
break
|
|
}
|
|
if l.Stream == "stdout" && stdout {
|
|
fmt.Fprintf(outStream, "%s", l.Log)
|
|
}
|
|
if l.Stream == "stderr" && stderr {
|
|
fmt.Fprintf(errStream, "%s", l.Log)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
//stream
|
|
if stream {
|
|
if container.State.IsGhost() {
|
|
return fmt.Errorf("Impossible to attach to a ghost container")
|
|
}
|
|
|
|
var (
|
|
cStdin io.ReadCloser
|
|
cStdout, cStderr io.Writer
|
|
cStdinCloser io.Closer
|
|
)
|
|
|
|
if stdin {
|
|
r, w := io.Pipe()
|
|
go func() {
|
|
defer w.Close()
|
|
defer utils.Debugf("Closing buffered stdin pipe")
|
|
io.Copy(w, inStream)
|
|
}()
|
|
cStdin = r
|
|
cStdinCloser = inStream
|
|
}
|
|
if stdout {
|
|
cStdout = outStream
|
|
}
|
|
if stderr {
|
|
cStderr = errStream
|
|
}
|
|
|
|
<-container.Attach(cStdin, cStdinCloser, cStdout, cStderr)
|
|
|
|
// If we are in stdinonce mode, wait for the process to end
|
|
// otherwise, simply return
|
|
if container.Config.StdinOnce && !container.Config.Tty {
|
|
container.Wait()
|
|
}
|
|
}
|
|
return nil
|
|
}
|
|
|
|
func (srv *Server) ContainerInspect(name string) (*Container, error) {
|
|
if container := srv.runtime.Get(name); container != nil {
|
|
return container, nil
|
|
}
|
|
return nil, fmt.Errorf("No such container: %s", name)
|
|
}
|
|
|
|
func (srv *Server) ImageInspect(name string) (*Image, error) {
|
|
if image, err := srv.runtime.repositories.LookupImage(name); err == nil && image != nil {
|
|
return image, nil
|
|
}
|
|
return nil, fmt.Errorf("No such image: %s", name)
|
|
}
|
|
|
|
func (srv *Server) ContainerCopy(job *engine.Job) engine.Status {
|
|
if len(job.Args) != 2 {
|
|
job.Errorf("Usage: %s CONTAINER RESOURCE\n", job.Name)
|
|
return engine.StatusErr
|
|
}
|
|
|
|
var (
|
|
name = job.Args[0]
|
|
resource = job.Args[1]
|
|
)
|
|
|
|
if container := srv.runtime.Get(name); container != nil {
|
|
|
|
data, err := container.Copy(resource)
|
|
if err != nil {
|
|
job.Error(err)
|
|
return engine.StatusErr
|
|
}
|
|
|
|
if _, err := io.Copy(job.Stdout, data); err != nil {
|
|
job.Error(err)
|
|
return engine.StatusErr
|
|
}
|
|
return engine.StatusOK
|
|
}
|
|
job.Errorf("No such container: %s", name)
|
|
return engine.StatusErr
|
|
|
|
}
|
|
|
|
func NewServer(eng *engine.Engine, config *DaemonConfig) (*Server, error) {
|
|
runtime, err := NewRuntime(config)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
srv := &Server{
|
|
Eng: eng,
|
|
runtime: runtime,
|
|
pullingPool: make(map[string]chan struct{}),
|
|
pushingPool: make(map[string]chan struct{}),
|
|
events: make([]utils.JSONMessage, 0, 64), //only keeps the 64 last events
|
|
listeners: make(map[string]chan utils.JSONMessage),
|
|
}
|
|
runtime.srv = srv
|
|
return srv, nil
|
|
}
|
|
|
|
func (srv *Server) HTTPRequestFactory(metaHeaders map[string][]string) *utils.HTTPRequestFactory {
|
|
srv.Lock()
|
|
defer srv.Unlock()
|
|
v := dockerVersion()
|
|
httpVersion := make([]utils.VersionInfo, 0, 4)
|
|
httpVersion = append(httpVersion, &simpleVersionInfo{"docker", v.Get("Version")})
|
|
httpVersion = append(httpVersion, &simpleVersionInfo{"go", v.Get("GoVersion")})
|
|
httpVersion = append(httpVersion, &simpleVersionInfo{"git-commit", v.Get("GitCommit")})
|
|
httpVersion = append(httpVersion, &simpleVersionInfo{"kernel", v.Get("KernelVersion")})
|
|
httpVersion = append(httpVersion, &simpleVersionInfo{"os", v.Get("Os")})
|
|
httpVersion = append(httpVersion, &simpleVersionInfo{"arch", v.Get("Arch")})
|
|
ud := utils.NewHTTPUserAgentDecorator(httpVersion...)
|
|
md := &utils.HTTPMetaHeadersDecorator{
|
|
Headers: metaHeaders,
|
|
}
|
|
factory := utils.NewHTTPRequestFactory(ud, md)
|
|
return factory
|
|
}
|
|
|
|
func (srv *Server) LogEvent(action, id, from string) *utils.JSONMessage {
|
|
now := time.Now().UTC().Unix()
|
|
jm := utils.JSONMessage{Status: action, ID: id, From: from, Time: now}
|
|
srv.AddEvent(jm)
|
|
for _, c := range srv.listeners {
|
|
select { // non blocking channel
|
|
case c <- jm:
|
|
default:
|
|
}
|
|
}
|
|
return &jm
|
|
}
|
|
|
|
func (srv *Server) AddEvent(jm utils.JSONMessage) {
|
|
srv.Lock()
|
|
defer srv.Unlock()
|
|
srv.events = append(srv.events, jm)
|
|
}
|
|
|
|
func (srv *Server) GetEvents() []utils.JSONMessage {
|
|
srv.RLock()
|
|
defer srv.RUnlock()
|
|
return srv.events
|
|
}
|
|
|
|
type Server struct {
|
|
sync.RWMutex
|
|
runtime *Runtime
|
|
pullingPool map[string]chan struct{}
|
|
pushingPool map[string]chan struct{}
|
|
events []utils.JSONMessage
|
|
listeners map[string]chan utils.JSONMessage
|
|
Eng *engine.Engine
|
|
}
|