926 lines
25 KiB
Go
926 lines
25 KiB
Go
// DEPRECATION NOTICE. PLEASE DO NOT ADD ANYTHING TO THIS FILE.
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//
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// For additional commments see server/server.go
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//
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package server
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import (
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"bytes"
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"encoding/json"
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"errors"
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"fmt"
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"io"
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"log"
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"os"
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"os/exec"
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"path"
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"path/filepath"
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"strconv"
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"strings"
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"syscall"
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"time"
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"github.com/docker/docker/daemon"
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"github.com/docker/docker/engine"
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"github.com/docker/docker/graph"
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"github.com/docker/docker/pkg/graphdb"
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"github.com/docker/docker/pkg/parsers"
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"github.com/docker/docker/pkg/signal"
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"github.com/docker/docker/pkg/tailfile"
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"github.com/docker/docker/runconfig"
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"github.com/docker/docker/utils"
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)
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func (srv *Server) ContainerPause(job *engine.Job) engine.Status {
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if len(job.Args) != 1 {
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return job.Errorf("Usage: %s CONTAINER", job.Name)
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}
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name := job.Args[0]
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container := srv.daemon.Get(name)
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if container == nil {
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return job.Errorf("No such container: %s", name)
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}
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if err := container.Pause(); err != nil {
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return job.Errorf("Cannot pause container %s: %s", name, err)
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}
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srv.LogEvent("pause", container.ID, srv.daemon.Repositories().ImageName(container.Image))
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return engine.StatusOK
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}
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func (srv *Server) ContainerUnpause(job *engine.Job) engine.Status {
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if n := len(job.Args); n < 1 || n > 2 {
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return job.Errorf("Usage: %s CONTAINER", job.Name)
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}
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name := job.Args[0]
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container := srv.daemon.Get(name)
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if container == nil {
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return job.Errorf("No such container: %s", name)
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}
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if err := container.Unpause(); err != nil {
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return job.Errorf("Cannot unpause container %s: %s", name, err)
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}
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srv.LogEvent("unpause", container.ID, srv.daemon.Repositories().ImageName(container.Image))
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return engine.StatusOK
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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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return job.Errorf("Usage: %s CONTAINER [SIGNAL]", job.Name)
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}
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var (
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name = job.Args[0]
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sig uint64
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err error
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)
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// If we have a signal, look at it. Otherwise, do nothing
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if len(job.Args) == 2 && job.Args[1] != "" {
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// Check if we passed the signal as a number:
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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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// The signal is not a number, treat it as a string (either like "KILL" or like "SIGKILL")
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sig = uint64(signal.SignalMap[strings.TrimPrefix(job.Args[1], "SIG")])
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}
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if sig == 0 {
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return job.Errorf("Invalid signal: %s", job.Args[1])
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}
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}
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if container := srv.daemon.Get(name); container != nil {
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// If no signal is passed, or SIGKILL, perform regular Kill (SIGKILL + wait())
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if sig == 0 || syscall.Signal(sig) == syscall.SIGKILL {
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if err := container.Kill(); err != nil {
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return job.Errorf("Cannot kill container %s: %s", name, err)
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}
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srv.LogEvent("kill", container.ID, srv.daemon.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.KillSig(int(sig)); err != nil {
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return job.Errorf("Cannot kill container %s: %s", name, err)
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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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return job.Errorf("No such container: %s", name)
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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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return job.Errorf("Usage: %s container_id", job.Name)
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}
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name := job.Args[0]
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if container := srv.daemon.Get(name); container != nil {
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data, err := container.Export()
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if err != nil {
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return job.Errorf("%s: %s", name, err)
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}
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defer data.Close()
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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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return job.Errorf("%s: %s", name, err)
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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.daemon.Repositories().ImageName(container.Image))
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return engine.StatusOK
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}
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return job.Errorf("No such container: %s", name)
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}
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func (srv *Server) ContainerTop(job *engine.Job) engine.Status {
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if len(job.Args) != 1 && len(job.Args) != 2 {
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return job.Errorf("Not enough arguments. Usage: %s CONTAINER [PS_ARGS]\n", job.Name)
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}
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var (
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name = job.Args[0]
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psArgs = "-ef"
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)
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if len(job.Args) == 2 && job.Args[1] != "" {
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psArgs = job.Args[1]
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}
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if container := srv.daemon.Get(name); container != nil {
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if !container.State.IsRunning() {
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return job.Errorf("Container %s is not running", name)
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}
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pids, err := srv.daemon.ExecutionDriver().GetPidsForContainer(container.ID)
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if err != nil {
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return job.Error(err)
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}
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output, err := exec.Command("ps", psArgs).Output()
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if err != nil {
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return job.Errorf("Error running ps: %s", err)
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}
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lines := strings.Split(string(output), "\n")
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header := strings.Fields(lines[0])
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out := &engine.Env{}
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out.SetList("Titles", header)
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pidIndex := -1
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for i, name := range header {
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if name == "PID" {
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pidIndex = i
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}
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}
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if pidIndex == -1 {
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return job.Errorf("Couldn't find PID field in ps output")
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}
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processes := [][]string{}
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for _, line := range lines[1:] {
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if len(line) == 0 {
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continue
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}
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fields := strings.Fields(line)
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p, err := strconv.Atoi(fields[pidIndex])
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if err != nil {
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return job.Errorf("Unexpected pid '%s': %s", fields[pidIndex], err)
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}
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for _, pid := range pids {
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if pid == p {
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// Make sure number of fields equals number of header titles
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// merging "overhanging" fields
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process := fields[:len(header)-1]
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process = append(process, strings.Join(fields[len(header)-1:], " "))
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processes = append(processes, process)
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}
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}
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}
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out.SetJson("Processes", processes)
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out.WriteTo(job.Stdout)
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return engine.StatusOK
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}
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return job.Errorf("No such container: %s", name)
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}
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func (srv *Server) ContainerChanges(job *engine.Job) engine.Status {
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if n := len(job.Args); n != 1 {
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return job.Errorf("Usage: %s CONTAINER", job.Name)
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}
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name := job.Args[0]
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if container := srv.daemon.Get(name); container != nil {
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outs := engine.NewTable("", 0)
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changes, err := container.Changes()
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if err != nil {
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return job.Error(err)
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}
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for _, change := range changes {
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out := &engine.Env{}
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if err := out.Import(change); err != nil {
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return job.Error(err)
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}
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outs.Add(out)
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}
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if _, err := outs.WriteListTo(job.Stdout); err != nil {
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return job.Error(err)
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}
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} else {
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return job.Errorf("No such container: %s", name)
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}
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return engine.StatusOK
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}
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func (srv *Server) Containers(job *engine.Job) engine.Status {
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var (
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foundBefore bool
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displayed int
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all = job.GetenvBool("all")
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since = job.Getenv("since")
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before = job.Getenv("before")
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n = job.GetenvInt("limit")
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size = job.GetenvBool("size")
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)
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outs := engine.NewTable("Created", 0)
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names := map[string][]string{}
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srv.daemon.ContainerGraph().Walk("/", func(p string, e *graphdb.Entity) error {
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names[e.ID()] = append(names[e.ID()], p)
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return nil
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}, -1)
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var beforeCont, sinceCont *daemon.Container
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if before != "" {
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beforeCont = srv.daemon.Get(before)
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if beforeCont == nil {
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return job.Error(fmt.Errorf("Could not find container with name or id %s", before))
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}
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}
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if since != "" {
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sinceCont = srv.daemon.Get(since)
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if sinceCont == nil {
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return job.Error(fmt.Errorf("Could not find container with name or id %s", since))
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}
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}
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errLast := errors.New("last container")
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writeCont := func(container *daemon.Container) error {
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container.Lock()
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defer container.Unlock()
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if !container.State.IsRunning() && !all && n <= 0 && since == "" && before == "" {
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return nil
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}
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if before != "" && !foundBefore {
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if container.ID == beforeCont.ID {
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foundBefore = true
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}
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return nil
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}
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if n > 0 && displayed == n {
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return errLast
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}
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if since != "" {
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if container.ID == sinceCont.ID {
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return errLast
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}
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}
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displayed++
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out := &engine.Env{}
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out.Set("Id", container.ID)
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out.SetList("Names", names[container.ID])
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out.Set("Image", srv.daemon.Repositories().ImageName(container.Image))
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if len(container.Args) > 0 {
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args := []string{}
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for _, arg := range container.Args {
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if strings.Contains(arg, " ") {
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args = append(args, fmt.Sprintf("'%s'", arg))
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} else {
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args = append(args, arg)
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}
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}
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argsAsString := strings.Join(args, " ")
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out.Set("Command", fmt.Sprintf("\"%s %s\"", container.Path, argsAsString))
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} else {
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out.Set("Command", fmt.Sprintf("\"%s\"", container.Path))
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}
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out.SetInt64("Created", container.Created.Unix())
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out.Set("Status", container.State.String())
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str, err := container.NetworkSettings.PortMappingAPI().ToListString()
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if err != nil {
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return err
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}
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out.Set("Ports", str)
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if size {
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sizeRw, sizeRootFs := container.GetSize()
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out.SetInt64("SizeRw", sizeRw)
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out.SetInt64("SizeRootFs", sizeRootFs)
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}
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outs.Add(out)
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return nil
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}
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for _, container := range srv.daemon.List() {
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if err := writeCont(container); err != nil {
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if err != errLast {
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return job.Error(err)
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}
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break
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}
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}
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outs.ReverseSort()
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if _, err := outs.WriteListTo(job.Stdout); err != nil {
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return job.Error(err)
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}
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return engine.StatusOK
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}
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func (srv *Server) ContainerCommit(job *engine.Job) engine.Status {
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if len(job.Args) != 1 {
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return job.Errorf("Not enough arguments. Usage: %s CONTAINER\n", job.Name)
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}
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name := job.Args[0]
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container := srv.daemon.Get(name)
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if container == nil {
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return job.Errorf("No such container: %s", name)
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}
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var (
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config = container.Config
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newConfig runconfig.Config
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)
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if err := job.GetenvJson("config", &newConfig); err != nil {
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return job.Error(err)
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}
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if err := runconfig.Merge(&newConfig, config); err != nil {
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return job.Error(err)
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}
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img, err := srv.daemon.Commit(container, job.Getenv("repo"), job.Getenv("tag"), job.Getenv("comment"), job.Getenv("author"), job.GetenvBool("pause"), &newConfig)
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if err != nil {
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return job.Error(err)
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}
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job.Printf("%s\n", img.ID)
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return engine.StatusOK
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}
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func (srv *Server) ContainerCreate(job *engine.Job) engine.Status {
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var name string
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if len(job.Args) == 1 {
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name = job.Args[0]
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} else if len(job.Args) > 1 {
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return job.Errorf("Usage: %s", job.Name)
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}
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config := runconfig.ContainerConfigFromJob(job)
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if config.Memory != 0 && config.Memory < 524288 {
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return job.Errorf("Minimum memory limit allowed is 512k")
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}
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if config.Memory > 0 && !srv.daemon.SystemConfig().MemoryLimit {
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job.Errorf("Your kernel does not support memory limit capabilities. Limitation discarded.\n")
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config.Memory = 0
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}
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if config.Memory > 0 && !srv.daemon.SystemConfig().SwapLimit {
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job.Errorf("Your kernel does not support swap limit capabilities. Limitation discarded.\n")
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config.MemorySwap = -1
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}
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container, buildWarnings, err := srv.daemon.Create(config, name)
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if err != nil {
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if srv.daemon.Graph().IsNotExist(err) {
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_, tag := parsers.ParseRepositoryTag(config.Image)
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if tag == "" {
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tag = graph.DEFAULTTAG
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}
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return job.Errorf("No such image: %s (tag: %s)", config.Image, tag)
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}
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return job.Error(err)
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}
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if !container.Config.NetworkDisabled && srv.daemon.SystemConfig().IPv4ForwardingDisabled {
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job.Errorf("IPv4 forwarding is disabled.\n")
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}
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srv.LogEvent("create", container.ID, srv.daemon.Repositories().ImageName(container.Image))
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// FIXME: this is necessary because daemon.Create might return a nil container
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// with a non-nil error. This should not happen! Once it's fixed we
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// can remove this workaround.
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if container != nil {
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job.Printf("%s\n", container.ID)
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}
|
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for _, warning := range buildWarnings {
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job.Errorf("%s\n", warning)
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}
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return engine.StatusOK
|
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}
|
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|
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func (srv *Server) ContainerRestart(job *engine.Job) engine.Status {
|
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if len(job.Args) != 1 {
|
|
return job.Errorf("Usage: %s CONTAINER\n", job.Name)
|
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}
|
|
var (
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name = job.Args[0]
|
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t = 10
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)
|
|
if job.EnvExists("t") {
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t = job.GetenvInt("t")
|
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}
|
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if container := srv.daemon.Get(name); container != nil {
|
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if err := container.Restart(int(t)); err != nil {
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return job.Errorf("Cannot restart container %s: %s\n", name, err)
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}
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srv.LogEvent("restart", container.ID, srv.daemon.Repositories().ImageName(container.Image))
|
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} else {
|
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return job.Errorf("No such container: %s\n", name)
|
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}
|
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return engine.StatusOK
|
|
}
|
|
|
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func (srv *Server) ContainerDestroy(job *engine.Job) engine.Status {
|
|
if len(job.Args) != 1 {
|
|
return job.Errorf("Not enough arguments. Usage: %s CONTAINER\n", job.Name)
|
|
}
|
|
name := job.Args[0]
|
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removeVolume := job.GetenvBool("removeVolume")
|
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removeLink := job.GetenvBool("removeLink")
|
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stop := job.GetenvBool("stop")
|
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kill := job.GetenvBool("kill")
|
|
|
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container := srv.daemon.Get(name)
|
|
|
|
if removeLink {
|
|
if container == nil {
|
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return job.Errorf("No such link: %s", name)
|
|
}
|
|
name, err := daemon.GetFullContainerName(name)
|
|
if err != nil {
|
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job.Error(err)
|
|
}
|
|
parent, n := path.Split(name)
|
|
if parent == "/" {
|
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return job.Errorf("Conflict, cannot remove the default name of the container")
|
|
}
|
|
pe := srv.daemon.ContainerGraph().Get(parent)
|
|
if pe == nil {
|
|
return job.Errorf("Cannot get parent %s for name %s", parent, name)
|
|
}
|
|
parentContainer := srv.daemon.Get(pe.ID())
|
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|
|
if parentContainer != nil {
|
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parentContainer.DisableLink(n)
|
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}
|
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|
|
if err := srv.daemon.ContainerGraph().Delete(name); err != nil {
|
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return job.Error(err)
|
|
}
|
|
return engine.StatusOK
|
|
}
|
|
|
|
if container != nil {
|
|
if container.State.IsRunning() {
|
|
if stop {
|
|
if err := container.Stop(5); err != nil {
|
|
return job.Errorf("Could not stop running container, cannot remove - %v", err)
|
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}
|
|
} else if kill {
|
|
if err := container.Kill(); err != nil {
|
|
return job.Errorf("Could not kill running container, cannot remove - %v", err)
|
|
}
|
|
} else {
|
|
return job.Errorf("You cannot remove a running container. Stop the container before attempting removal or use -s or -k")
|
|
}
|
|
}
|
|
if err := srv.daemon.Destroy(container); err != nil {
|
|
return job.Errorf("Cannot destroy container %s: %s", name, err)
|
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}
|
|
srv.LogEvent("destroy", container.ID, srv.daemon.Repositories().ImageName(container.Image))
|
|
|
|
if removeVolume {
|
|
var (
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volumes = make(map[string]struct{})
|
|
binds = make(map[string]struct{})
|
|
usedVolumes = make(map[string]*daemon.Container)
|
|
)
|
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|
|
// the volume id is always the base of the path
|
|
getVolumeId := func(p string) string {
|
|
return filepath.Base(strings.TrimSuffix(p, "/layer"))
|
|
}
|
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|
|
// populate bind map so that they can be skipped and not removed
|
|
for _, bind := range container.HostConfig().Binds {
|
|
source := strings.Split(bind, ":")[0]
|
|
// TODO: refactor all volume stuff, all of it
|
|
// it is very important that we eval the link or comparing the keys to container.Volumes will not work
|
|
//
|
|
// eval symlink can fail, ref #5244 if we receive an is not exist error we can ignore it
|
|
p, err := filepath.EvalSymlinks(source)
|
|
if err != nil && !os.IsNotExist(err) {
|
|
return job.Error(err)
|
|
}
|
|
if p != "" {
|
|
source = p
|
|
}
|
|
binds[source] = struct{}{}
|
|
}
|
|
|
|
// Store all the deleted containers volumes
|
|
for _, volumeId := range container.Volumes {
|
|
// Skip the volumes mounted from external
|
|
// bind mounts here will will be evaluated for a symlink
|
|
if _, exists := binds[volumeId]; exists {
|
|
continue
|
|
}
|
|
|
|
volumeId = getVolumeId(volumeId)
|
|
volumes[volumeId] = struct{}{}
|
|
}
|
|
|
|
// Retrieve all volumes from all remaining containers
|
|
for _, container := range srv.daemon.List() {
|
|
for _, containerVolumeId := range container.Volumes {
|
|
containerVolumeId = getVolumeId(containerVolumeId)
|
|
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.daemon.Volumes().Delete(volumeId); err != nil {
|
|
return job.Errorf("Error calling volumes.Delete(%q): %v", volumeId, err)
|
|
}
|
|
}
|
|
}
|
|
} else {
|
|
return job.Errorf("No such container: %s", name)
|
|
}
|
|
return engine.StatusOK
|
|
}
|
|
|
|
func (srv *Server) setHostConfig(container *daemon.Container, hostConfig *runconfig.HostConfig) error {
|
|
// Validate the HostConfig binds. Make sure that:
|
|
// the source exists
|
|
for _, bind := range hostConfig.Binds {
|
|
splitBind := strings.Split(bind, ":")
|
|
source := splitBind[0]
|
|
|
|
// ensure the source exists on the host
|
|
_, err := os.Stat(source)
|
|
if err != nil && os.IsNotExist(err) {
|
|
err = os.MkdirAll(source, 0755)
|
|
if err != nil {
|
|
return fmt.Errorf("Could not create local directory '%s' for bind mount: %s!", source, err.Error())
|
|
}
|
|
}
|
|
}
|
|
// Register any links from the host config before starting the container
|
|
if err := srv.daemon.RegisterLinks(container, hostConfig); err != nil {
|
|
return err
|
|
}
|
|
container.SetHostConfig(hostConfig)
|
|
container.ToDisk()
|
|
|
|
return nil
|
|
}
|
|
|
|
func (srv *Server) ContainerStart(job *engine.Job) engine.Status {
|
|
if len(job.Args) < 1 {
|
|
return job.Errorf("Usage: %s container_id", job.Name)
|
|
}
|
|
var (
|
|
name = job.Args[0]
|
|
daemon = srv.daemon
|
|
container = daemon.Get(name)
|
|
)
|
|
|
|
if container == nil {
|
|
return job.Errorf("No such container: %s", name)
|
|
}
|
|
|
|
if container.State.IsRunning() {
|
|
return job.Errorf("Container already started")
|
|
}
|
|
|
|
// If no environment was set, then no hostconfig was passed.
|
|
if len(job.Environ()) > 0 {
|
|
hostConfig := runconfig.ContainerHostConfigFromJob(job)
|
|
if err := srv.setHostConfig(container, hostConfig); err != nil {
|
|
return job.Error(err)
|
|
}
|
|
}
|
|
if err := container.Start(); err != nil {
|
|
return job.Errorf("Cannot start container %s: %s", name, err)
|
|
}
|
|
srv.LogEvent("start", container.ID, daemon.Repositories().ImageName(container.Image))
|
|
|
|
return engine.StatusOK
|
|
}
|
|
|
|
func (srv *Server) ContainerStop(job *engine.Job) engine.Status {
|
|
if len(job.Args) != 1 {
|
|
return job.Errorf("Usage: %s CONTAINER\n", job.Name)
|
|
}
|
|
var (
|
|
name = job.Args[0]
|
|
t = 10
|
|
)
|
|
if job.EnvExists("t") {
|
|
t = job.GetenvInt("t")
|
|
}
|
|
if container := srv.daemon.Get(name); container != nil {
|
|
if !container.State.IsRunning() {
|
|
return job.Errorf("Container already stopped")
|
|
}
|
|
if err := container.Stop(int(t)); err != nil {
|
|
return job.Errorf("Cannot stop container %s: %s\n", name, err)
|
|
}
|
|
srv.LogEvent("stop", container.ID, srv.daemon.Repositories().ImageName(container.Image))
|
|
} else {
|
|
return job.Errorf("No such container: %s\n", name)
|
|
}
|
|
return engine.StatusOK
|
|
}
|
|
|
|
func (srv *Server) ContainerWait(job *engine.Job) engine.Status {
|
|
if len(job.Args) != 1 {
|
|
return job.Errorf("Usage: %s", job.Name)
|
|
}
|
|
name := job.Args[0]
|
|
if container := srv.daemon.Get(name); container != nil {
|
|
status, _ := container.State.WaitStop(-1 * time.Second)
|
|
job.Printf("%d\n", status)
|
|
return engine.StatusOK
|
|
}
|
|
return job.Errorf("%s: no such container: %s", job.Name, name)
|
|
}
|
|
|
|
func (srv *Server) ContainerResize(job *engine.Job) engine.Status {
|
|
if len(job.Args) != 3 {
|
|
return job.Errorf("Not enough arguments. Usage: %s CONTAINER HEIGHT WIDTH\n", job.Name)
|
|
}
|
|
name := job.Args[0]
|
|
height, err := strconv.Atoi(job.Args[1])
|
|
if err != nil {
|
|
return job.Error(err)
|
|
}
|
|
width, err := strconv.Atoi(job.Args[2])
|
|
if err != nil {
|
|
return job.Error(err)
|
|
}
|
|
if container := srv.daemon.Get(name); container != nil {
|
|
if err := container.Resize(height, width); err != nil {
|
|
return job.Error(err)
|
|
}
|
|
return engine.StatusOK
|
|
}
|
|
return job.Errorf("No such container: %s", name)
|
|
}
|
|
|
|
func (srv *Server) ContainerLogs(job *engine.Job) engine.Status {
|
|
if len(job.Args) != 1 {
|
|
return job.Errorf("Usage: %s CONTAINER\n", job.Name)
|
|
}
|
|
|
|
var (
|
|
name = job.Args[0]
|
|
stdout = job.GetenvBool("stdout")
|
|
stderr = job.GetenvBool("stderr")
|
|
tail = job.Getenv("tail")
|
|
follow = job.GetenvBool("follow")
|
|
times = job.GetenvBool("timestamps")
|
|
lines = -1
|
|
format string
|
|
)
|
|
if !(stdout || stderr) {
|
|
return job.Errorf("You must choose at least one stream")
|
|
}
|
|
if times {
|
|
format = time.RFC3339Nano
|
|
}
|
|
if tail == "" {
|
|
tail = "all"
|
|
}
|
|
container := srv.daemon.Get(name)
|
|
if container == nil {
|
|
return job.Errorf("No such container: %s", name)
|
|
}
|
|
cLog, err := container.ReadLog("json")
|
|
if err != nil && os.IsNotExist(err) {
|
|
// Legacy logs
|
|
utils.Debugf("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(job.Stdout, 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(job.Stderr, cLog); err != nil {
|
|
utils.Errorf("Error streaming logs (stderr): %s", err)
|
|
}
|
|
}
|
|
} else if err != nil {
|
|
utils.Errorf("Error reading logs (json): %s", err)
|
|
} else {
|
|
if tail != "all" {
|
|
var err error
|
|
lines, err = strconv.Atoi(tail)
|
|
if err != nil {
|
|
utils.Errorf("Failed to parse tail %s, error: %v, show all logs", err)
|
|
lines = -1
|
|
}
|
|
}
|
|
if lines != 0 {
|
|
if lines > 0 {
|
|
f := cLog.(*os.File)
|
|
ls, err := tailfile.TailFile(f, lines)
|
|
if err != nil {
|
|
return job.Error(err)
|
|
}
|
|
tmp := bytes.NewBuffer([]byte{})
|
|
for _, l := range ls {
|
|
fmt.Fprintf(tmp, "%s\n", l)
|
|
}
|
|
cLog = tmp
|
|
}
|
|
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
|
|
}
|
|
logLine := l.Log
|
|
if times {
|
|
logLine = fmt.Sprintf("%s %s", l.Created.Format(format), logLine)
|
|
}
|
|
if l.Stream == "stdout" && stdout {
|
|
fmt.Fprintf(job.Stdout, "%s", logLine)
|
|
}
|
|
if l.Stream == "stderr" && stderr {
|
|
fmt.Fprintf(job.Stderr, "%s", logLine)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
if follow {
|
|
errors := make(chan error, 2)
|
|
if stdout {
|
|
stdoutPipe := container.StdoutLogPipe()
|
|
go func() {
|
|
errors <- utils.WriteLog(stdoutPipe, job.Stdout, format)
|
|
}()
|
|
}
|
|
if stderr {
|
|
stderrPipe := container.StderrLogPipe()
|
|
go func() {
|
|
errors <- utils.WriteLog(stderrPipe, job.Stderr, format)
|
|
}()
|
|
}
|
|
err := <-errors
|
|
if err != nil {
|
|
utils.Errorf("%s", err)
|
|
}
|
|
}
|
|
return engine.StatusOK
|
|
}
|
|
|
|
func (srv *Server) ContainerAttach(job *engine.Job) engine.Status {
|
|
if len(job.Args) != 1 {
|
|
return job.Errorf("Usage: %s CONTAINER\n", job.Name)
|
|
}
|
|
|
|
var (
|
|
name = job.Args[0]
|
|
logs = job.GetenvBool("logs")
|
|
stream = job.GetenvBool("stream")
|
|
stdin = job.GetenvBool("stdin")
|
|
stdout = job.GetenvBool("stdout")
|
|
stderr = job.GetenvBool("stderr")
|
|
)
|
|
|
|
container := srv.daemon.Get(name)
|
|
if container == nil {
|
|
return job.Errorf("No such container: %s", name)
|
|
}
|
|
|
|
//logs
|
|
if logs {
|
|
cLog, err := container.ReadLog("json")
|
|
if err != nil && os.IsNotExist(err) {
|
|
// Legacy logs
|
|
utils.Debugf("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(job.Stdout, 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(job.Stderr, 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(job.Stdout, "%s", l.Log)
|
|
}
|
|
if l.Stream == "stderr" && stderr {
|
|
fmt.Fprintf(job.Stderr, "%s", l.Log)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
//stream
|
|
if stream {
|
|
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, job.Stdin)
|
|
}()
|
|
cStdin = r
|
|
cStdinCloser = job.Stdin
|
|
}
|
|
if stdout {
|
|
cStdout = job.Stdout
|
|
}
|
|
if stderr {
|
|
cStderr = job.Stderr
|
|
}
|
|
|
|
<-srv.daemon.Attach(container, 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.State.WaitStop(-1 * time.Second)
|
|
}
|
|
}
|
|
return engine.StatusOK
|
|
}
|
|
|
|
func (srv *Server) ContainerCopy(job *engine.Job) engine.Status {
|
|
if len(job.Args) != 2 {
|
|
return job.Errorf("Usage: %s CONTAINER RESOURCE\n", job.Name)
|
|
}
|
|
|
|
var (
|
|
name = job.Args[0]
|
|
resource = job.Args[1]
|
|
)
|
|
|
|
if container := srv.daemon.Get(name); container != nil {
|
|
|
|
data, err := container.Copy(resource)
|
|
if err != nil {
|
|
return job.Error(err)
|
|
}
|
|
defer data.Close()
|
|
|
|
if _, err := io.Copy(job.Stdout, data); err != nil {
|
|
return job.Error(err)
|
|
}
|
|
return engine.StatusOK
|
|
}
|
|
return job.Errorf("No such container: %s", name)
|
|
}
|