kotovalexarian-likes-github
/
moby--moby
mirror of https://github.com/moby/moby.git
1
0
Fork 0
Code Releases Activity

restify api

This commit is contained in:
Victor Vieux 2013-04-22 18:17:47 +02:00
parent b295239de2
commit 1aa7f1392d
3 changed files with 454 additions and 985 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

324
api.go
View File

@ -9,6 +9,7 @@ import (
"net/http"
"os"
"runtime"
"strconv"
"strings"
"time"
)
@ -17,56 +18,42 @@ func ListenAndServe(addr string, rtime *Runtime) error {
r := mux.NewRouter()
log.Printf("Listening for HTTP on %s\n", addr)
r.Path("/version").Methods("GET", "POST").HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
r.Path("/version").Methods("GET").HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
log.Println(r.RequestURI)
m := VersionOut{VERSION, GIT_COMMIT, NO_MEMORY_LIMIT}
b, err := json.Marshal(m)
if err != nil {
w.WriteHeader(500)
http.Error(w, err.Error(), http.StatusInternalServerError)
} else {
w.Write(b)
}
})
r.Path("/kill").Methods("GET", "POST").HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
var ids []string
if err := json.NewDecoder(r.Body).Decode(&ids); err != nil {
w.WriteHeader(500)
return
}
var ret SimpleMessage
for _, name := range ids {
container := rtime.Get(name)
if container == nil {
ret.Message = "No such container: " + name + "\n"
break
}
if err := container.Kill(); err != nil {
ret.Message = ret.Message + "Error killing container " + name + ": " + err.Error() + "\n"
}
}
if ret.Message == "" {
w.WriteHeader(200)
} else {
w.WriteHeader(500)
}
b, err := json.Marshal(ret)
if err != nil {
w.WriteHeader(500)
} else {
w.Write(b)
}
r.Path("/containers/{name:.*}/kill").Methods("POST").HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
log.Println(r.RequestURI)
vars := mux.Vars(r)
name := vars["name"]
if container := rtime.Get(name); container != nil {
if err := container.Kill(); err != nil {
http.Error(w, "Error restarting container "+name+": "+err.Error(), http.StatusInternalServerError)
return
}
} else {
http.Error(w, "No such container: "+name, http.StatusInternalServerError)
return
}
w.WriteHeader(200)
})
r.Path("/images").Methods("GET", "POST").HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
var in ImagesIn
json.NewDecoder(r.Body).Decode(&in)
r.Path("/images").Methods("GET").HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
log.Println(r.RequestURI)
All := r.Form.Get("all")
NameFilter := r.Form.Get("filter")
Quiet := r.Form.Get("quiet")
var allImages map[string]*Image
var err error
if in.All {
if All == "true" {
allImages, err = rtime.graph.Map()
} else {
allImages, err = rtime.graph.Heads()
@ -77,7 +64,7 @@ func ListenAndServe(addr string, rtime *Runtime) error {
}
var outs []ImagesOut
for name, repository := range rtime.repositories.Repositories {
if in.NameFilter != "" && name != in.NameFilter {
if NameFilter != "" && name != NameFilter {
continue
}
for tag, id := range repository {
@ -88,7 +75,7 @@ func ListenAndServe(addr string, rtime *Runtime) error {
continue
}
delete(allImages, id)
if !in.Quiet {
if Quiet != "true" {
out.Repository = name
out.Tag = tag
out.Id = TruncateId(id)
@ -100,10 +87,10 @@ func ListenAndServe(addr string, rtime *Runtime) error {
}
}
// Display images which aren't part of a
if in.NameFilter == "" {
if NameFilter == "" {
for id, image := range allImages {
var out ImagesOut
if !in.Quiet {
if Quiet != "true" {
out.Repository = "<none>"
out.Tag = "<none>"
out.Id = TruncateId(id)
@ -121,10 +108,10 @@ func ListenAndServe(addr string, rtime *Runtime) error {
} else {
w.Write(b)
}
})
r.Path("/info").Methods("GET", "POST").HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
r.Path("/info").Methods("GET").HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
log.Println(r.RequestURI)
images, _ := rtime.graph.All()
var imgcount int
if images == nil {
@ -149,13 +136,12 @@ func ListenAndServe(addr string, rtime *Runtime) error {
}
})
r.Path("/history").Methods("GET", "POST").HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
r.Path("/images/{name:.*}/history").Methods("GET").HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
log.Println(r.RequestURI)
vars := mux.Vars(r)
name := vars["name"]
var in HistoryIn
json.NewDecoder(r.Body).Decode(&in)
image, err := rtime.repositories.LookupImage(in.Name)
image, err := rtime.repositories.LookupImage(name)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
@ -175,15 +161,14 @@ func ListenAndServe(addr string, rtime *Runtime) error {
} else {
w.Write(b)
}
})
r.Path("/logs").Methods("GET", "POST").HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
r.Path("/containers/{name:.*}/logs").Methods("GET").HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
log.Println(r.RequestURI)
vars := mux.Vars(r)
name := vars["name"]
var in LogsIn
json.NewDecoder(r.Body).Decode(&in)
if container := rtime.Get(in.Name); container != nil {
if container := rtime.Get(name); container != nil {
var out LogsOut
logStdout, err := container.ReadLog("stdout")
@ -220,28 +205,34 @@ func ListenAndServe(addr string, rtime *Runtime) error {
}
} else {
http.Error(w, "No such container: "+in.Name, http.StatusInternalServerError)
http.Error(w, "No such container: "+name, http.StatusInternalServerError)
}
})
r.Path("/ps").Methods("GET", "POST").HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
var in PsIn
json.NewDecoder(r.Body).Decode(&in)
r.Path("/containers").Methods("GET").HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
log.Println(r.RequestURI)
All := r.Form.Get("all")
NoTrunc := r.Form.Get("notrunc")
Quiet := r.Form.Get("quiet")
Last := r.Form.Get("n")
n, err := strconv.Atoi(Last)
if err != nil {
n = -1
}
var outs []PsOut
for i, container := range rtime.List() {
if !container.State.Running && !in.All && in.Last == -1 {
if !container.State.Running && All != "true" && n == -1 {
continue
}
if i == in.Last {
if i == n {
break
}
var out PsOut
out.Id = container.ShortId()
if !in.Quiet {
if Quiet != "true" {
command := fmt.Sprintf("%s %s", container.Path, strings.Join(container.Args, " "))
if !in.Full {
if NoTrunc != "true" {
command = Trunc(command, 20)
}
out.Image = rtime.repositories.ImageName(container.Image)
@ -258,173 +249,88 @@ func ListenAndServe(addr string, rtime *Runtime) error {
} else {
w.Write(b)
}
})
r.Path("/restart").Methods("GET", "POST").HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
var ins, outs []string
json.NewDecoder(r.Body).Decode(&ins)
for _, name := range ins {
if container := rtime.Get(name); container != nil {
if err := container.Restart(); err != nil {
http.Error(w, "Error restaring container "+name+": "+err.Error(), http.StatusInternalServerError)
return
}
outs = append(outs, container.ShortId())
} else {
http.Error(w, "No such container: "+name, http.StatusInternalServerError)
r.Path("/containers/{name:.*}/restart").Methods("POST").HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
log.Println(r.RequestURI)
vars := mux.Vars(r)
name := vars["name"]
if container := rtime.Get(name); container != nil {
if err := container.Restart(); err != nil {
http.Error(w, "Error restarting container "+name+": "+err.Error(), http.StatusInternalServerError)
return
}
}
b, err := json.Marshal(outs)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
} else {
w.Write(b)
}
})
r.Path("/rm").Methods("GET", "POST").HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
var ins, outs []string
json.NewDecoder(r.Body).Decode(&ins)
for _, name := range ins {
if container := rtime.Get(name); container != nil {
if err := rtime.Destroy(container); err != nil {
http.Error(w, "Error destroying container "+name+": "+err.Error(), http.StatusInternalServerError)
return
}
outs = append(outs, container.ShortId())
} else {
http.Error(w, "No such container: "+name, http.StatusInternalServerError)
return
}
}
b, err := json.Marshal(outs)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
} else {
w.Write(b)
}
})
r.Path("/rmi").Methods("GET", "POST").HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
var ins, outs []string
json.NewDecoder(r.Body).Decode(&ins)
for _, name := range ins {
img, err := rtime.repositories.LookupImage(name)
if err != nil {
http.Error(w, "No such image: "+name, http.StatusInternalServerError)
return
} else {
if err := rtime.graph.Delete(img.Id); err != nil {
http.Error(w, "Error deleting image "+name+": "+err.Error(), http.StatusInternalServerError)
return
}
outs = append(outs, img.ShortId())
}
}
b, err := json.Marshal(outs)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
} else {
w.Write(b)
}
})
r.Path("/run").Methods("GET", "POST").HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
var config Config
json.NewDecoder(r.Body).Decode(&config)
hj, ok := w.(http.Hijacker)
if !ok {
http.Error(w, "webserver doesn't support hijacking", http.StatusInternalServerError)
http.Error(w, "No such container: "+name, http.StatusInternalServerError)
return
}
conn, bufrw, err := hj.Hijack()
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
w.WriteHeader(200)
})
r.Path("/containers/{name:.*}").Methods("DELETE").HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
log.Println(r.RequestURI)
vars := mux.Vars(r)
name := vars["name"]
if container := rtime.Get(name); container != nil {
if err := rtime.Destroy(container); err != nil {
http.Error(w, "Error destroying container "+name+": "+err.Error(), http.StatusInternalServerError)
return
}
} else {
http.Error(w, "No such container: "+name, http.StatusInternalServerError)
return
}
defer conn.Close()
//TODO config.Tty
// Create new container
container, err := rtime.Create(&config)
if err != nil {
// If container not found, try to pull it
if rtime.graph.IsNotExist(err) {
bufrw.WriteString("Image " + config.Image + " not found, trying to pull it from registry.\r\n")
bufrw.Flush()
//TODO if err = srv.CmdPull(stdin, stdout, config.Image); err != nil {
//return err
//}
if container, err = rtime.Create(&config); err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
} else {
http.Error(w, err.Error(), http.StatusInternalServerError)
return
}
}
container = container
w.WriteHeader(200)
})
r.Path("/start").Methods("GET", "POST").HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
var ins, outs []string
json.NewDecoder(r.Body).Decode(&ins)
for _, name := range ins {
if container := rtime.Get(name); container != nil {
if err := container.Start(); err != nil {
http.Error(w, "Error starting container "+name+": "+err.Error(), http.StatusInternalServerError)
return
}
outs = append(outs, container.ShortId())
} else {
http.Error(w, "No such container: "+name, http.StatusInternalServerError)
r.Path("/images/{name:.*}").Methods("DELETE").HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
log.Println(r.RequestURI)
vars := mux.Vars(r)
name := vars["name"]
img, err := rtime.repositories.LookupImage(name)
if err != nil {
http.Error(w, "No such image: "+name, http.StatusInternalServerError)
return
} else {
if err := rtime.graph.Delete(img.Id); err != nil {
http.Error(w, "Error deleting image "+name+": "+err.Error(), http.StatusInternalServerError)
return
}
}
b, err := json.Marshal(outs)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
} else {
w.Write(b)
}
w.WriteHeader(200)
})
r.Path("/stop").Methods("GET", "POST").HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
var ins, outs []string
json.NewDecoder(r.Body).Decode(&ins)
for _, name := range ins {
if container := rtime.Get(name); container != nil {
if err := container.Stop(); err != nil {
http.Error(w, "Error stopping container "+name+": "+err.Error(), http.StatusInternalServerError)
return
}
outs = append(outs, container.ShortId())
} else {
http.Error(w, "No such container: "+name, http.StatusInternalServerError)
r.Path("/containers/{name:.*}/start").Methods("POST").HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
log.Println(r.RequestURI)
vars := mux.Vars(r)
name := vars["name"]
if container := rtime.Get(name); container != nil {
if err := container.Start(); err != nil {
http.Error(w, "Error starting container "+name+": "+err.Error(), http.StatusInternalServerError)
return
}
}
b, err := json.Marshal(outs)
if err != nil {
http.Error(w, err.Error(), http.StatusInternalServerError)
} else {
w.Write(b)
http.Error(w, "No such container: "+name, http.StatusInternalServerError)
return
}
w.WriteHeader(200)
})
r.Path("/containers/{name:.*}/stop").Methods("POST").HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
log.Println(r.RequestURI)
vars := mux.Vars(r)
name := vars["name"]
if container := rtime.Get(name); container != nil {
if err := container.Stop(); err != nil {
http.Error(w, "Error stopping container "+name+": "+err.Error(), http.StatusInternalServerError)
return
}
} else {
http.Error(w, "No such container: "+name, http.StatusInternalServerError)
return
}
w.WriteHeader(200)
})
return http.ListenAndServe(addr, r)

587
commands.go
View File

@ -1,21 +1,17 @@
package docker
import (
"bytes"
_"bytes"
"encoding/json"
"flag"
"fmt"
"github.com/dotcloud/docker/auth"
"github.com/dotcloud/docker/rcli"
"io"
"log"
_"io"
"io/ioutil"
"net/http"
"net/url"
"runtime"
"os"
"strconv"
"strings"
"text/tabwriter"
"time"
"unicode"
)
const VERSION = "0.1.4"
@ -25,45 +21,70 @@ var (
NO_MEMORY_LIMIT bool
)
func (srv *Server) Name() string {
return "docker"
func ParseCommands(args []string) error {
cmds := map[string]func(args []string) error{
"images": CmdImages,
"info": CmdInfo,
"history": CmdHistory,
"kill": CmdKill,
"logs": CmdLogs,
"ps": CmdPs,
"restart": CmdRestart,
"rm": CmdRm,
"rmi": CmdRmi,
"start": CmdStart,
"stop": CmdStop,
"version": CmdVersion,
}
if len(args) > 0 {
cmd, exists := cmds[args[0]]
if !exists {
//TODO display commend not found
return cmdHelp(args)
}
return cmd(args[1:])
}
return cmdHelp(args)
}
// FIXME: Stop violating DRY by repeating usage here and in Subcmd declarations
func (srv *Server) Help() string {
func cmdHelp(args []string) error {
help := "Usage: docker COMMAND [arg...]\n\nA self-sufficient runtime for linux containers.\n\nCommands:\n"
for _, cmd := range [][]string{
{"attach", "Attach to a running container"},
{"commit", "Create a new image from a container's changes"},
{"diff", "Inspect changes on a container's filesystem"},
{"export", "Stream the contents of a container as a tar archive"},
// {"attach", "Attach to a running container"},
// {"commit", "Create a new image from a container's changes"},
// {"diff", "Inspect changes on a container's filesystem"},
// {"export", "Stream the contents of a container as a tar archive"},
{"history", "Show the history of an image"},
{"images", "List images"},
{"import", "Create a new filesystem image from the contents of a tarball"},
// {"import", "Create a new filesystem image from the contents of a tarball"},
{"info", "Display system-wide information"},
{"inspect", "Return low-level information on a container"},
// {"inspect", "Return low-level information on a container"},
{"kill", "Kill a running container"},
{"login", "Register or Login to the docker registry server"},
// {"login", "Register or Login to the docker registry server"},
{"logs", "Fetch the logs of a container"},
{"port", "Lookup the public-facing port which is NAT-ed to PRIVATE_PORT"},
// {"port", "Lookup the public-facing port which is NAT-ed to PRIVATE_PORT"},
{"ps", "List containers"},
{"pull", "Pull an image or a repository from the docker registry server"},
{"push", "Push an image or a repository to the docker registry server"},
// {"pull", "Pull an image or a repository from the docker registry server"},
// {"push", "Push an image or a repository to the docker registry server"},
{"restart", "Restart a running container"},
{"rm", "Remove a container"},
{"rmi", "Remove an image"},
{"run", "Run a command in a new container"},
// {"run", "Run a command in a new container"},
{"start", "Start a stopped container"},
{"stop", "Stop a running container"},
{"tag", "Tag an image into a repository"},
// {"tag", "Tag an image into a repository"},
{"version", "Show the docker version information"},
{"wait", "Block until a container stops, then print its exit code"},
// {"wait", "Block until a container stops, then print its exit code"},
} {
help += fmt.Sprintf(" %-10.10s%s\n", cmd[0], cmd[1])
}
return help
fmt.Println(help)
return nil
}
/*
// 'docker login': login / register a user to registry service.
func (srv *Server) CmdLogin(stdin io.ReadCloser, stdout rcli.DockerConn, args ...string) error {
// Read a line on raw terminal with support for simple backspace
@ -161,7 +182,9 @@ func (srv *Server) CmdLogin(stdin io.ReadCloser, stdout rcli.DockerConn, args ..
}
return nil
}
*/
/*
// 'docker wait': block until a container stops
func (srv *Server) CmdWait(stdin io.ReadCloser, stdout io.Writer, args ...string) error {
cmd := rcli.Subcmd(stdout, "wait", "CONTAINER [CONTAINER...]", "Block until a container stops, then print its exit code.")
@ -181,27 +204,12 @@ func (srv *Server) CmdWait(stdin io.ReadCloser, stdout io.Writer, args ...string
}
return nil
}
*/
// 'docker version': show version information
func (srv *Server) CmdVersion(stdin io.ReadCloser, stdout io.Writer, args ...string) error {
fmt.Fprintf(stdout, "Version:%s\n", VERSION)
fmt.Fprintf(stdout, "Git Commit:%s\n", GIT_COMMIT)
if NO_MEMORY_LIMIT {
fmt.Fprintf(stdout, "Memory limit disabled\n")
}
return nil
}
// 'docker info': display system-wide information.
func (srv *Server) CmdInfo(stdin io.ReadCloser, stdout io.Writer, args ...string) error {
images, _ := srv.runtime.graph.All()
var imgcount int
if images == nil {
imgcount = 0
} else {
imgcount = len(images)
}
cmd := rcli.Subcmd(stdout, "info", "", "Display system-wide information.")
func CmdVersion(args []string) error {
cmd := Subcmd("version", "", "Show the docker version information.")
if err := cmd.Parse(args); err != nil {
return nil
}
@ -209,21 +217,57 @@ func (srv *Server) CmdInfo(stdin io.ReadCloser, stdout io.Writer, args ...string
cmd.Usage()
return nil
}
fmt.Fprintf(stdout, "containers: %d\nversion: %s\nimages: %d\n",
len(srv.runtime.List()),
VERSION,
imgcount)
if !rcli.DEBUG_FLAG {
return nil
body, err := call("GET", "version")
if err != nil {
return err
}
fmt.Fprintln(stdout, "debug mode enabled")
fmt.Fprintf(stdout, "fds: %d\ngoroutines: %d\n", getTotalUsedFds(), runtime.NumGoroutine())
var out VersionOut
err = json.Unmarshal(body, &out)
if err != nil {
return err
}
fmt.Println("Version:", out.Version)
fmt.Println("Git Commit:", out.GitCommit)
if out.MemoryLimitDisabled {
fmt.Println("Memory limit disabled")
}
return nil
}
func (srv *Server) CmdStop(stdin io.ReadCloser, stdout io.Writer, args ...string) error {
cmd := rcli.Subcmd(stdout, "stop", "CONTAINER [CONTAINER...]", "Stop a running container")
// 'docker info': display system-wide information.
func CmdInfo(args []string) error {
cmd := Subcmd("info", "", "Display system-wide information")
if err := cmd.Parse(args); err != nil {
return nil
}
if cmd.NArg() > 0 {
cmd.Usage()
return nil
}
body, err := call("GET", "info")
if err != nil {
return err
}
var out InfoOut
err = json.Unmarshal(body, &out)
if err != nil {
return err
}
fmt.Printf("containers: %d\nversion: %s\nimages: %d\n", out.Containers, out.Version, out.Images)
if out.Debug {
fmt.Println("debug mode enabled")
fmt.Printf("fds: %d\ngoroutines: %d\n", out.NFd, out.NGoroutines)
}
return nil
}
func CmdStop(args []string) error {
cmd := Subcmd("stop", "CONTAINER [CONTAINER...]", "Stop a running container")
if err := cmd.Parse(args); err != nil {
return nil
}
@ -231,21 +275,20 @@ func (srv *Server) CmdStop(stdin io.ReadCloser, stdout io.Writer, args ...string
cmd.Usage()
return nil
}
for _, name := range cmd.Args() {
if container := srv.runtime.Get(name); container != nil {
if err := container.Stop(); err != nil {
return err
}
fmt.Fprintln(stdout, container.ShortId())
for _, name := range args {
_, err := call("GET", "/containers/"+name+"/stop")
if err != nil {
fmt.Printf("%s", err)
} else {
return fmt.Errorf("No such container: %s", name)
fmt.Println(name)
}
}
return nil
}
func (srv *Server) CmdRestart(stdin io.ReadCloser, stdout io.Writer, args ...string) error {
cmd := rcli.Subcmd(stdout, "restart", "CONTAINER [CONTAINER...]", "Restart a running container")
func CmdRestart(args []string) error {
cmd := Subcmd("restart", "CONTAINER [CONTAINER...]", "Restart a running container")
if err := cmd.Parse(args); err != nil {
return nil
}
@ -253,21 +296,20 @@ func (srv *Server) CmdRestart(stdin io.ReadCloser, stdout io.Writer, args ...str
cmd.Usage()
return nil
}
for _, name := range cmd.Args() {
if container := srv.runtime.Get(name); container != nil {
if err := container.Restart(); err != nil {
return err
}
fmt.Fprintln(stdout, container.ShortId())
for _, name := range args {
_, err := call("GET", "/containers/"+name+"/restart")
if err != nil {
fmt.Printf("%s", err)
} else {
return fmt.Errorf("No such container: %s", name)
fmt.Println(name)
}
}
return nil
}
func (srv *Server) CmdStart(stdin io.ReadCloser, stdout io.Writer, args ...string) error {
cmd := rcli.Subcmd(stdout, "start", "CONTAINER [CONTAINER...]", "Start a stopped container")
func CmdStart(args []string) error {
cmd := Subcmd("start", "CONTAINER [CONTAINER...]", "Restart a stopped container")
if err := cmd.Parse(args); err != nil {
return nil
}
@ -275,19 +317,19 @@ func (srv *Server) CmdStart(stdin io.ReadCloser, stdout io.Writer, args ...strin
cmd.Usage()
return nil
}
for _, name := range cmd.Args() {
if container := srv.runtime.Get(name); container != nil {
if err := container.Start(); err != nil {
return err
}
fmt.Fprintln(stdout, container.ShortId())
for _, name := range args {
_, err := call("GET", "/containers/"+name+"/start")
if err != nil {
fmt.Printf("%s", err)
} else {
return fmt.Errorf("No such container: %s", name)
fmt.Println(name)
}
}
return nil
}
/*
func (srv *Server) CmdInspect(stdin io.ReadCloser, stdout io.Writer, args ...string) error {
cmd := rcli.Subcmd(stdout, "inspect", "CONTAINER", "Return low-level information on a container")
if err := cmd.Parse(args); err != nil {
@ -322,7 +364,9 @@ func (srv *Server) CmdInspect(stdin io.ReadCloser, stdout io.Writer, args ...str
stdout.Write([]byte{'\n'})
return nil
}
*/
/*
func (srv *Server) CmdPort(stdin io.ReadCloser, stdout io.Writer, args ...string) error {
cmd := rcli.Subcmd(stdout, "port", "CONTAINER PRIVATE_PORT", "Lookup the public-facing port which is NAT-ed to PRIVATE_PORT")
if err := cmd.Parse(args); err != nil {
@ -345,10 +389,11 @@ func (srv *Server) CmdPort(stdin io.ReadCloser, stdout io.Writer, args ...string
}
return nil
}
*/
// 'docker rmi IMAGE' removes all images with the name IMAGE
func (srv *Server) CmdRmi(stdin io.ReadCloser, stdout io.Writer, args ...string) (err error) {
cmd := rcli.Subcmd(stdout, "rmimage", "IMAGE [IMAGE...]", "Remove an image")
func CmdRmi(args []string) error {
cmd := Subcmd("rmi", "IMAGE [IMAGE...]", "Remove an image")
if err := cmd.Parse(args); err != nil {
return nil
}
@ -356,20 +401,20 @@ func (srv *Server) CmdRmi(stdin io.ReadCloser, stdout io.Writer, args ...string)
cmd.Usage()
return nil
}
for _, name := range cmd.Args() {
img, err := srv.runtime.repositories.LookupImage(name)
for _, name := range args {
_, err := call("DELETE", "/images/"+name)
if err != nil {
return err
}
if err := srv.runtime.graph.Delete(img.Id); err != nil {
return err
fmt.Printf("%s", err)
} else {
fmt.Println(name)
}
}
return nil
}
func (srv *Server) CmdHistory(stdin io.ReadCloser, stdout io.Writer, args ...string) error {
cmd := rcli.Subcmd(stdout, "history", "IMAGE", "Show the history of an image")
func CmdHistory(args []string) error {
cmd := Subcmd("history", "IMAGE", "Show the history of an image")
if err := cmd.Parse(args); err != nil {
return nil
}
@ -377,25 +422,29 @@ func (srv *Server) CmdHistory(stdin io.ReadCloser, stdout io.Writer, args ...str
cmd.Usage()
return nil
}
image, err := srv.runtime.repositories.LookupImage(cmd.Arg(0))
body, err := call("GET", "images/"+cmd.Arg(0)+"/history")
if err != nil {
return err
}
w := tabwriter.NewWriter(stdout, 20, 1, 3, ' ', 0)
defer w.Flush()
var outs []HistoryOut
err = json.Unmarshal(body, &outs)
if err != nil {
return err
}
w := tabwriter.NewWriter(os.Stdout, 20, 1, 3, ' ', 0)
fmt.Fprintln(w, "ID\tCREATED\tCREATED BY")
return image.WalkHistory(func(img *Image) error {
fmt.Fprintf(w, "%s\t%s\t%s\n",
srv.runtime.repositories.ImageName(img.ShortId()),
HumanDuration(time.Now().Sub(img.Created))+" ago",
strings.Join(img.ContainerConfig.Cmd, " "),
)
return nil
})
for _, out := range outs {
fmt.Fprintf(w, "%s\t%s\t%s\n", out.Id, out.Created, out.CreatedBy)
}
w.Flush()
return nil
}
func (srv *Server) CmdRm(stdin io.ReadCloser, stdout io.Writer, args ...string) error {
cmd := rcli.Subcmd(stdout, "rm", "CONTAINER [CONTAINER...]", "Remove a container")
func CmdRm(args []string) error {
cmd := Subcmd("rm", "CONTAINER [CONTAINER...]", "Remove a container")
if err := cmd.Parse(args); err != nil {
return nil
}
@ -403,21 +452,21 @@ func (srv *Server) CmdRm(stdin io.ReadCloser, stdout io.Writer, args ...string)
cmd.Usage()
return nil
}
for _, name := range cmd.Args() {
container := srv.runtime.Get(name)
if container == nil {
return fmt.Errorf("No such container: %s", name)
}
if err := srv.runtime.Destroy(container); err != nil {
fmt.Fprintln(stdout, "Error destroying container "+name+": "+err.Error())
for _, name := range args {
_, err := call("DELETE", "/containers/"+name)
if err != nil {
fmt.Printf("%s", err)
} else {
fmt.Println(name)
}
}
return nil
}
// 'docker kill NAME' kills a running container
func (srv *Server) CmdKill(stdin io.ReadCloser, stdout io.Writer, args ...string) error {
cmd := rcli.Subcmd(stdout, "kill", "CONTAINER [CONTAINER...]", "Kill a running container")
func CmdKill(args []string) error {
cmd := Subcmd("kill", "CONTAINER [CONTAINER...]", "Kill a running container")
if err := cmd.Parse(args); err != nil {
return nil
}
@ -425,18 +474,19 @@ func (srv *Server) CmdKill(stdin io.ReadCloser, stdout io.Writer, args ...string
cmd.Usage()
return nil
}
for _, name := range cmd.Args() {
container := srv.runtime.Get(name)
if container == nil {
return fmt.Errorf("No such container: %s", name)
}
if err := container.Kill(); err != nil {
fmt.Fprintln(stdout, "Error killing container "+name+": "+err.Error())
for _, name := range args {
_, err := call("POST", "/containers/"+name+"/kill")
if err != nil {
fmt.Printf("%s", err)
} else {
fmt.Println(name)
}
}
return nil
}
/*
func (srv *Server) CmdImport(stdin io.ReadCloser, stdout rcli.DockerConn, args ...string) error {
stdout.Flush()
cmd := rcli.Subcmd(stdout, "import", "URL|- [REPOSITORY [TAG]]", "Create a new filesystem image from the contents of a tarball")
@ -486,7 +536,9 @@ func (srv *Server) CmdImport(stdin io.ReadCloser, stdout rcli.DockerConn, args .
fmt.Fprintln(stdout, img.ShortId())
return nil
}
*/
/*
func (srv *Server) CmdPush(stdin io.ReadCloser, stdout rcli.DockerConn, args ...string) error {
cmd := rcli.Subcmd(stdout, "push", "NAME", "Push an image or a repository to the registry")
if err := cmd.Parse(args); err != nil {
@ -545,7 +597,9 @@ func (srv *Server) CmdPush(stdin io.ReadCloser, stdout rcli.DockerConn, args ...
}
return nil
}
*/
/*
func (srv *Server) CmdPull(stdin io.ReadCloser, stdout io.Writer, args ...string) error {
cmd := rcli.Subcmd(stdout, "pull", "NAME", "Pull an image or a repository from the registry")
if err := cmd.Parse(args); err != nil {
@ -570,12 +624,13 @@ func (srv *Server) CmdPull(stdin io.ReadCloser, stdout io.Writer, args ...string
}
return nil
}
*/
func (srv *Server) CmdImages(stdin io.ReadCloser, stdout io.Writer, args ...string) error {
cmd := rcli.Subcmd(stdout, "images", "[OPTIONS] [NAME]", "List images")
//limit := cmd.Int("l", 0, "Only show the N most recent versions of each image")
func CmdImages(args []string) error {
cmd := Subcmd("images", "[OPTIONS] [NAME]", "List images")
quiet := cmd.Bool("q", false, "only show numeric IDs")
flAll := cmd.Bool("a", false, "show all images")
all := cmd.Bool("a", false, "show all images")
if err := cmd.Parse(args); err != nil {
return nil
}
@ -583,137 +638,104 @@ func (srv *Server) CmdImages(stdin io.ReadCloser, stdout io.Writer, args ...stri
cmd.Usage()
return nil
}
var nameFilter string
v := url.Values{}
if cmd.NArg() == 1 {
nameFilter = cmd.Arg(0)
v.Set("filter", cmd.Arg(0))
}
w := tabwriter.NewWriter(stdout, 20, 1, 3, ' ', 0)
if !*quiet {
fmt.Fprintln(w, "REPOSITORY\tTAG\tID\tCREATED")
if *quiet {
v.Set("quiet", "true")
}
var allImages map[string]*Image
var err error
if *flAll {
allImages, err = srv.runtime.graph.Map()
} else {
allImages, err = srv.runtime.graph.Heads()
if *all {
v.Set("all", "true")
}
body, err := call("GET", "images?"+v.Encode())
if err != nil {
return err
}
for name, repository := range srv.runtime.repositories.Repositories {
if nameFilter != "" && name != nameFilter {
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
}
delete(allImages, id)
if !*quiet {
for idx, field := range []string{
/* REPOSITORY */ name,
/* TAG */ tag,
/* ID */ TruncateId(id),
/* CREATED */ HumanDuration(time.Now().Sub(image.Created)) + " ago",
} {
if idx == 0 {
w.Write([]byte(field))
} else {
w.Write([]byte("\t" + field))
}
}
w.Write([]byte{'\n'})
} else {
stdout.Write([]byte(image.ShortId() + "\n"))
}
}
}
// Display images which aren't part of a
if nameFilter == "" {
for id, image := range allImages {
if !*quiet {
for idx, field := range []string{
/* REPOSITORY */ "<none>",
/* TAG */ "<none>",
/* ID */ TruncateId(id),
/* CREATED */ HumanDuration(time.Now().Sub(image.Created)) + " ago",
} {
if idx == 0 {
w.Write([]byte(field))
} else {
w.Write([]byte("\t" + field))
}
}
w.Write([]byte{'\n'})
} else {
stdout.Write([]byte(image.ShortId() + "\n"))
}
var outs []ImagesOut
err = json.Unmarshal(body, &outs)
if err != nil {
return err
}
w := tabwriter.NewWriter(os.Stdout, 20, 1, 3, ' ', 0)
if !*quiet {
fmt.Fprintln(w, "REPOSITORY\tTAG\tID\tCREATED")
}
for _, out := range outs {
if !*quiet {
fmt.Fprintf(w, "%s\t%s\t%s\t%s\n", out.Repository, out.Tag, out.Id, out.Created)
} else {
fmt.Fprintln(w, out.Id)
}
}
if !*quiet {
w.Flush()
}
return nil
}
func (srv *Server) CmdPs(stdin io.ReadCloser, stdout io.Writer, args ...string) error {
cmd := rcli.Subcmd(stdout,
"ps", "[OPTIONS]", "List containers")
func CmdPs(args []string) error {
cmd := Subcmd("ps", "[OPTIONS]", "List containers")
quiet := cmd.Bool("q", false, "Only display numeric IDs")
flAll := cmd.Bool("a", false, "Show all containers. Only running containers are shown by default.")
flFull := cmd.Bool("notrunc", false, "Don't truncate output")
latest := cmd.Bool("l", false, "Show only the latest created container, include non-running ones.")
nLast := cmd.Int("n", -1, "Show n last created containers, include non-running ones.")
all := cmd.Bool("a", false, "Show all containers. Only running containers are shown by default.")
noTrunc := cmd.Bool("notrunc", false, "Don't truncate output")
nLatest := cmd.Bool("l", false, "Show only the latest created container, include non-running ones.")
last := cmd.Int("n", -1, "Show n last created containers, include non-running ones.")
if err := cmd.Parse(args); err != nil {
return nil
}
if *nLast == -1 && *latest {
*nLast = 1
v := url.Values{}
if *last == -1 && *nLatest {
*last = 1
}
w := tabwriter.NewWriter(stdout, 12, 1, 3, ' ', 0)
if *quiet {
v.Set("quiet", "true")
}
if *all {
v.Set("all", "true")
}
if *noTrunc {
v.Set("notrunc", "true")
}
if *last != -1 {
v.Set("n", strconv.Itoa(*last))
}
body, err := call("GET", "containers?"+v.Encode())
if err != nil {
return err
}
var outs []PsOut
err = json.Unmarshal(body, &outs)
if err != nil {
return err
}
w := tabwriter.NewWriter(os.Stdout, 20, 1, 3, ' ', 0)
if !*quiet {
fmt.Fprintln(w, "ID\tIMAGE\tCOMMAND\tCREATED\tSTATUS\tCOMMENT")
fmt.Fprintln(w, "ID\tIMAGE\tCOMMAND\tCREATED\tSTATUS")
}
for i, container := range srv.runtime.List() {
if !container.State.Running && !*flAll && *nLast == -1 {
continue
}
if i == *nLast {
break
}
for _, out := range outs {
if !*quiet {
command := fmt.Sprintf("%s %s", container.Path, strings.Join(container.Args, " "))
if !*flFull {
command = Trunc(command, 20)
}
for idx, field := range []string{
/* ID */ container.ShortId(),
/* IMAGE */ srv.runtime.repositories.ImageName(container.Image),
/* COMMAND */ command,
/* CREATED */ HumanDuration(time.Now().Sub(container.Created)) + " ago",
/* STATUS */ container.State.String(),
/* COMMENT */ "",
} {
if idx == 0 {
w.Write([]byte(field))
} else {
w.Write([]byte("\t" + field))
}
}
w.Write([]byte{'\n'})
fmt.Fprintf(w, "%s\t%s\t%s\t%s\n", out.Id, out.Image, out.Command, out.Status, out.Created)
} else {
stdout.Write([]byte(container.ShortId() + "\n"))
fmt.Fprintln(w, out.Id)
}
}
if !*quiet {
w.Flush()
}
return nil
}
/*
func (srv *Server) CmdCommit(stdin io.ReadCloser, stdout io.Writer, args ...string) error {
cmd := rcli.Subcmd(stdout,
"commit", "[OPTIONS] CONTAINER [REPOSITORY [TAG]]",
@ -734,7 +756,9 @@ func (srv *Server) CmdCommit(stdin io.ReadCloser, stdout io.Writer, args ...stri
fmt.Fprintln(stdout, img.ShortId())
return nil
}
*/
/*
func (srv *Server) CmdExport(stdin io.ReadCloser, stdout io.Writer, args ...string) error {
cmd := rcli.Subcmd(stdout,
"export", "CONTAINER",
@ -756,7 +780,9 @@ func (srv *Server) CmdExport(stdin io.ReadCloser, stdout io.Writer, args ...stri
}
return fmt.Errorf("No such container: %s", name)
}
*/
/*
func (srv *Server) CmdDiff(stdin io.ReadCloser, stdout io.Writer, args ...string) error {
cmd := rcli.Subcmd(stdout,
"diff", "CONTAINER",
@ -781,9 +807,10 @@ func (srv *Server) CmdDiff(stdin io.ReadCloser, stdout io.Writer, args ...string
}
return nil
}
*/
func (srv *Server) CmdLogs(stdin io.ReadCloser, stdout io.Writer, args ...string) error {
cmd := rcli.Subcmd(stdout, "logs", "CONTAINER", "Fetch the logs of a container")
func CmdLogs(args []string) error {
cmd := Subcmd("logs", "CONTAINER", "Fetch the logs of a container")
if err := cmd.Parse(args); err != nil {
return nil
}
@ -791,29 +818,23 @@ func (srv *Server) CmdLogs(stdin io.ReadCloser, stdout io.Writer, args ...string
cmd.Usage()
return nil
}
name := cmd.Arg(0)
if container := srv.runtime.Get(name); container != nil {
logStdout, err := container.ReadLog("stdout")
if err != nil {
return err
}
logStderr, err := container.ReadLog("stderr")
if err != nil {
return err
}
// FIXME: Interpolate stdout and stderr instead of concatenating them
// FIXME: Differentiate stdout and stderr in the remote protocol
if _, err := io.Copy(stdout, logStdout); err != nil {
return err
}
if _, err := io.Copy(stdout, logStderr); err != nil {
return err
}
return nil
body, err := call("GET", "containers/"+cmd.Arg(0)+"/logs")
if err != nil {
return err
}
return fmt.Errorf("No such container: %s", cmd.Arg(0))
var out LogsOut
err = json.Unmarshal(body, &out)
if err != nil {
return err
}
fmt.Fprintln(os.Stdout, out.Stdout)
fmt.Fprintln(os.Stderr, out.Stderr)
return nil
}
/*
func (srv *Server) CmdAttach(stdin io.ReadCloser, stdout rcli.DockerConn, args ...string) error {
cmd := rcli.Subcmd(stdout, "attach", "CONTAINER", "Attach to a running container")
if err := cmd.Parse(args); err != nil {
@ -836,7 +857,8 @@ func (srv *Server) CmdAttach(stdin io.ReadCloser, stdout rcli.DockerConn, args .
stdout.Flush()
return <-container.Attach(stdin, nil, stdout, stdout)
}
*/
/*
// Ports type - Used to parse multiple -p flags
type ports []int
@ -852,6 +874,7 @@ func (p *ports) Set(value string) error {
*p = append(*p, port)
return nil
}
*/
// ListOpts type
type ListOpts []string
@ -892,6 +915,8 @@ func (opts AttachOpts) Get(val string) bool {
return false
}
/*
func (srv *Server) CmdTag(stdin io.ReadCloser, stdout io.Writer, args ...string) error {
cmd := rcli.Subcmd(stdout, "tag", "[OPTIONS] IMAGE REPOSITORY [TAG]", "Tag an image into a repository")
force := cmd.Bool("f", false, "Force")
@ -904,7 +929,9 @@ func (srv *Server) CmdTag(stdin io.ReadCloser, stdout io.Writer, args ...string)
}
return srv.runtime.repositories.Set(cmd.Arg(1), cmd.Arg(2), cmd.Arg(0), *force)
}
*/
/*
func (srv *Server) CmdRun(stdin io.ReadCloser, stdout rcli.DockerConn, args ...string) error {
config, err := ParseRun(args)
if err != nil {
@ -974,8 +1001,72 @@ func (srv *Server) CmdRun(stdin io.ReadCloser, stdout rcli.DockerConn, args ...s
<-attachErr
// Expecting I/O pipe error, discarding
return nil
}
*/
func call(method, path string) ([]byte, error) {
req, err := http.NewRequest(method, "http://0.0.0.0:4243/" + path, nil)
if err != nil {
return nil, err
}
resp, err := http.DefaultClient.Do(req)
if err != nil {
return nil, err
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
if resp.StatusCode != 200 {
return nil, fmt.Errorf("error: %s", body)
}
return body, nil
}
/*
func apiPost(path string, data interface{}) ([]byte, error) {
buf, err := json.Marshal(data)
if err != nil {
return nil, err
}
dataBuf := bytes.NewBuffer(buf)
resp, err := http.Post("http://0.0.0.0:4243/"+path, "application/json", dataBuf)
if err != nil {
return nil, err
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
if resp.StatusCode != 200 {
return nil, fmt.Errorf("[error] %s", body)
}
return body, nil
}
type Server struct {
runtime *Runtime
func apiPostHijack(path string, data interface{}) (io.ReadCloser, error) {
buf, err := json.Marshal(data)
if err != nil {
return nil, err
}
dataBuf := bytes.NewBuffer(buf)
resp, err := http.Post("http://0.0.0.0:4243/"+path, "application/json", dataBuf)
if err != nil {
return nil, err
}
//TODO check status code
return resp.Body, nil
}
*/
func Subcmd(name, signature, description string) *flag.FlagSet {
flags := flag.NewFlagSet(name, flag.ContinueOnError)
flags.Usage = func() {
fmt.Printf("\nUsage: docker %s %s\n\n%s\n\n", name, signature, description)
flags.PrintDefaults()
}
return flags
}

528
commands2.go
View File

@ -1,528 +0,0 @@
package docker
import (
"bytes"
"encoding/json"
"flag"
"fmt"
"io"
"io/ioutil"
"net/http"
"os"
"text/tabwriter"
)
func ParseCommands(args []string) error {
cmds := map[string]func(args []string) error{
"images": cmdImages,
"info": cmdInfo,
"history": cmdHistory,
"kill": cmdKill,
"logs": cmdLogs,
"ps": cmdPs,
"restart": cmdRestart,
"rm": cmdRm,
"rmi": cmdRmi,
"run": cmdRun,
"start": cmdStart,
"stop": cmdStop,
"version": cmdVersion,
}
if len(args) > 0 {
cmd, exists := cmds[args[0]]
if !exists {
//TODO display commend not found
return cmdHelp(args)
}
return cmd(args[1:])
}
return cmdHelp(args)
}
func cmdHelp(args []string) error {
help := "Usage: docker COMMAND [arg...]\n\nA self-sufficient runtime for linux containers.\n\nCommands:\n"
for _, cmd := range [][]string{
// {"attach", "Attach to a running container"},
// {"commit", "Create a new image from a container's changes"},
// {"diff", "Inspect changes on a container's filesystem"},
// {"export", "Stream the contents of a container as a tar archive"},
{"history", "Show the history of an image"},
{"images", "List images"},
// {"import", "Create a new filesystem image from the contents of a tarball"},
{"info", "Display system-wide information"},
// {"inspect", "Return low-level information on a container"},
{"kill", "Kill a running container"},
// {"login", "Register or Login to the docker registry server"},
{"logs", "Fetch the logs of a container"},
// {"port", "Lookup the public-facing port which is NAT-ed to PRIVATE_PORT"},
{"ps", "List containers"},
// {"pull", "Pull an image or a repository from the docker registry server"},
// {"push", "Push an image or a repository to the docker registry server"},
{"restart", "Restart a running container"},
{"rm", "Remove a container"},
{"rmi", "Remove an image"},
{"run", "Run a command in a new container"},
{"start", "Start a stopped container"},
{"stop", "Stop a running container"},
// {"tag", "Tag an image into a repository"},
{"version", "Show the docker version information"},
// {"wait", "Block until a container stops, then print its exit code"},
} {
help += fmt.Sprintf(" %-10.10s%s\n", cmd[0], cmd[1])
}
fmt.Println(help)
return nil
}
func cmdImages(args []string) error {
cmd := Subcmd("images", "[OPTIONS] [NAME]", "List images")
var in ImagesIn
cmd.BoolVar(&in.Quiet, "q", false, "only show numeric IDs")
cmd.BoolVar(&in.All, "a", false, "show all images")
if err := cmd.Parse(args); err != nil {
return nil
}
if cmd.NArg() > 1 {
cmd.Usage()
return nil
}
if cmd.NArg() == 1 {
in.NameFilter = cmd.Arg(0)
}
body, err := apiPost("images", in)
if err != nil {
return err
}
var outs []ImagesOut
err = json.Unmarshal(body, &outs)
if err != nil {
return err
}
w := tabwriter.NewWriter(os.Stdout, 20, 1, 3, ' ', 0)
if !in.Quiet {
fmt.Fprintln(w, "REPOSITORY\tTAG\tID\tCREATED")
}
for _, out := range outs {
if !in.Quiet {
fmt.Fprintf(w, "%s\t%s\t%s\t%s\n", out.Repository, out.Tag, out.Id, out.Created)
} else {
fmt.Fprintln(w, out.Id)
}
}
if !in.Quiet {
w.Flush()
}
return nil
}
func cmdInfo(args []string) error {
cmd := Subcmd("info", "", "Display system-wide information")
if err := cmd.Parse(args); err != nil {
return nil
}
if cmd.NArg() > 0 {
cmd.Usage()
return nil
}
body, err := apiGet("info")
if err != nil {
return err
}
var out InfoOut
err = json.Unmarshal(body, &out)
if err != nil {
return err
}
fmt.Printf("containers: %d\nversion: %s\nimages: %d\n", out.Containers, out.Version, out.Images)
if out.Debug {
fmt.Println("debug mode enabled")
fmt.Printf("fds: %d\ngoroutines: %d\n", out.NFd, out.NGoroutines)
}
return nil
}
func cmdHistory(args []string) error {
cmd := Subcmd("history", "IMAGE", "Show the history of an image")
if err := cmd.Parse(args); err != nil {
return nil
}
if cmd.NArg() != 1 {
cmd.Usage()
return nil
}
body, err := apiPost("history", HistoryIn{cmd.Arg(0)})
if err != nil {
return err
}
var outs []HistoryOut
err = json.Unmarshal(body, &outs)
if err != nil {
return err
}
w := tabwriter.NewWriter(os.Stdout, 20, 1, 3, ' ', 0)
fmt.Fprintln(w, "ID\tCREATED\tCREATED BY")
for _, out := range outs {
fmt.Fprintf(w, "%s\t%s\t%s\n", out.Id, out.Created, out.CreatedBy)
}
w.Flush()
return nil
}
func cmdKill(args []string) error {
cmd := Subcmd("kill", "CONTAINER [CONTAINER...]", "Kill a running container")
if err := cmd.Parse(args); err != nil {
return nil
}
if cmd.NArg() < 1 {
cmd.Usage()
return nil
}
body, err := apiPost("kill", args)
if err != nil {
return err
}
var out SimpleMessage
err = json.Unmarshal(body, &out)
if err != nil {
return err
}
fmt.Print(out.Message)
return nil
}
func cmdLogs(args []string) error {
cmd := Subcmd("logs", "CONTAINER", "Fetch the logs of a container")
if err := cmd.Parse(args); err != nil {
return nil
}
if cmd.NArg() != 1 {
cmd.Usage()
return nil
}
body, err := apiPost("logs", LogsIn{cmd.Arg(0)})
if err != nil {
return err
}
var out LogsOut
err = json.Unmarshal(body, &out)
if err != nil {
return err
}
fmt.Fprintln(os.Stdout, out.Stdout)
fmt.Fprintln(os.Stderr, out.Stderr)
return nil
}
func cmdPs(args []string) error {
cmd := Subcmd("ps", "[OPTIONS]", "List containers")
var in PsIn
cmd.BoolVar(&in.Quiet, "q", false, "Only display numeric IDs")
cmd.BoolVar(&in.All, "a", false, "Show all containers. Only running containers are shown by default.")
cmd.BoolVar(&in.Full, "notrunc", false, "Don't truncate output")
nLatest := cmd.Bool("l", false, "Show only the latest created container, include non-running ones.")
cmd.IntVar(&in.Last, "n", -1, "Show n last created containers, include non-running ones.")
if err := cmd.Parse(args); err != nil {
return nil
}
if in.Last == -1 && *nLatest {
in.Last = 1
}
body, err := apiPost("ps", in)
if err != nil {
return err
}
var outs []PsOut
err = json.Unmarshal(body, &outs)
if err != nil {
return err
}
w := tabwriter.NewWriter(os.Stdout, 20, 1, 3, ' ', 0)
if !in.Quiet {
fmt.Fprintln(w, "ID\tIMAGE\tCOMMAND\tCREATED\tSTATUS")
}
for _, out := range outs {
if !in.Quiet {
fmt.Fprintf(w, "%s\t%s\t%s\t%s\n", out.Id, out.Image, out.Command, out.Status, out.Created)
} else {
fmt.Fprintln(w, out.Id)
}
}
if !in.Quiet {
w.Flush()
}
return nil
}
func cmdRestart(args []string) error {
cmd := Subcmd("restart", "CONTAINER [CONTAINER...]", "Restart a running container")
if err := cmd.Parse(args); err != nil {
return nil
}
if cmd.NArg() < 1 {
cmd.Usage()
return nil
}
body, err := apiPost("restart", cmd.Args())
if err != nil {
return err
}
var out []string
err = json.Unmarshal(body, &out)
if err != nil {
return err
}
for _, name := range out {
fmt.Println(name)
}
return nil
}
func cmdRm(args []string) error {
cmd := Subcmd("rm", "CONTAINER [CONTAINER...]", "Remove a container")
if err := cmd.Parse(args); err != nil {
return nil
}
if cmd.NArg() < 1 {
cmd.Usage()
return nil
}
body, err := apiPost("rm", cmd.Args())
if err != nil {
return err
}
var out []string
err = json.Unmarshal(body, &out)
if err != nil {
return err
}
for _, name := range out {
fmt.Println(name)
}
return nil
}
func cmdRmi(args []string) error {
cmd := Subcmd("rmi", "IMAGE [IMAGE...]", "Remove an image")
if err := cmd.Parse(args); err != nil {
return nil
}
if cmd.NArg() < 1 {
cmd.Usage()
return nil
}
body, err := apiPost("rmi", cmd.Args())
if err != nil {
return err
}
var out []string
err = json.Unmarshal(body, &out)
if err != nil {
return err
}
for _, name := range out {
fmt.Println(name)
}
return nil
}
func cmdRun(args []string) error {
config, err := ParseRun(args)
if err != nil {
return err
}
if config.Image == "" {
fmt.Println("Error: Image not specified")
return fmt.Errorf("Image not specified")
}
if len(config.Cmd) == 0 {
fmt.Println("Error: Command not specified")
return fmt.Errorf("Command not specified")
}
body, err := apiPostHijack("run", config)
if err != nil {
return err
}
defer body.Close()
/*str, err2 := ioutil.ReadAll(body)
if err2 != nil {
return err2
}
fmt.Println(str)*/
return nil
}
func cmdStart(args []string) error {
cmd := Subcmd("start", "CONTAINER [CONTAINER...]", "Restart a stopped container")
if err := cmd.Parse(args); err != nil {
return nil
}
if cmd.NArg() < 1 {
cmd.Usage()
return nil
}
body, err := apiPost("start", cmd.Args())
if err != nil {
return err
}
var out []string
err = json.Unmarshal(body, &out)
if err != nil {
return err
}
for _, name := range out {
fmt.Println(name)
}
return nil
}
func cmdStop(args []string) error {
cmd := Subcmd("stop", "CONTAINER [CONTAINER...]", "Restart a running container")
if err := cmd.Parse(args); err != nil {
return nil
}
if cmd.NArg() < 1 {
cmd.Usage()
return nil
}
body, err := apiPost("stop", cmd.Args())
if err != nil {
return err
}
var out []string
err = json.Unmarshal(body, &out)
if err != nil {
return err
}
for _, name := range out {
fmt.Println(name)
}
return nil
}
func cmdVersion(args []string) error {
cmd := Subcmd("version", "", "Show the docker version information.")
if err := cmd.Parse(args); err != nil {
return nil
}
if cmd.NArg() > 0 {
cmd.Usage()
return nil
}
body, err := apiGet("version")
if err != nil {
return err
}
var out VersionOut
err = json.Unmarshal(body, &out)
if err != nil {
return err
}
fmt.Println("Version:", out.Version)
fmt.Println("Git Commit:", out.GitCommit)
if out.MemoryLimitDisabled {
fmt.Println("Memory limit disabled")
}
return nil
}
func apiGet(path string) ([]byte, error) {
resp, err := http.Get("http://0.0.0.0:4243/" + path)
if err != nil {
return nil, err
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
if resp.StatusCode != 200 {
return nil, fmt.Errorf("error: %s", body)
}
return body, nil
}
func apiPost(path string, data interface{}) ([]byte, error) {
buf, err := json.Marshal(data)
if err != nil {
return nil, err
}
dataBuf := bytes.NewBuffer(buf)
resp, err := http.Post("http://0.0.0.0:4243/"+path, "application/json", dataBuf)
if err != nil {
return nil, err
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
return nil, err
}
if resp.StatusCode != 200 {
return nil, fmt.Errorf("[error] %s", body)
}
return body, nil
}
func apiPostHijack(path string, data interface{}) (io.ReadCloser, error) {
buf, err := json.Marshal(data)
if err != nil {
return nil, err
}
dataBuf := bytes.NewBuffer(buf)
resp, err := http.Post("http://0.0.0.0:4243/"+path, "application/json", dataBuf)
if err != nil {
return nil, err
}
//TODO check status code
return resp.Body, nil
}
func Subcmd(name, signature, description string) *flag.FlagSet {
flags := flag.NewFlagSet(name, flag.ContinueOnError)
flags.Usage = func() {
fmt.Printf("\nUsage: docker %s %s\n\n%s\n\n", name, signature, description)
flags.PrintDefaults()
}
return flags
}