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https://github.com/moby/moby.git
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113 lines
5 KiB
Go
113 lines
5 KiB
Go
package main
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import (
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"fmt"
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"os"
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"path/filepath"
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"runtime"
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"github.com/docker/docker/opts"
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flag "github.com/docker/docker/pkg/mflag"
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)
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var (
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dockerCertPath = os.Getenv("DOCKER_CERT_PATH")
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dockerTlsVerify = os.Getenv("DOCKER_TLS_VERIFY") != ""
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)
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func init() {
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if dockerCertPath == "" {
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dockerCertPath = filepath.Join(getHomeDir(), ".docker")
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}
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}
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func getHomeDir() string {
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if runtime.GOOS == "windows" {
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return os.Getenv("USERPROFILE")
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}
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return os.Getenv("HOME")
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}
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var (
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flVersion = flag.Bool([]string{"v", "-version"}, false, "Print version information and quit")
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flDaemon = flag.Bool([]string{"d", "-daemon"}, false, "Enable daemon mode")
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flDebug = flag.Bool([]string{"D", "-debug"}, false, "Enable debug mode")
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flSocketGroup = flag.String([]string{"G", "-group"}, "docker", "Group to assign the unix socket specified by -H when running in daemon mode\nuse '' (the empty string) to disable setting of a group")
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flLogLevel = flag.String([]string{"l", "-log-level"}, "info", "Set the logging level (debug, info, warn, error, fatal)")
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flEnableCors = flag.Bool([]string{"#api-enable-cors", "-api-enable-cors"}, false, "Enable CORS headers in the remote API")
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flTls = flag.Bool([]string{"-tls"}, false, "Use TLS; implied by --tlsverify flag")
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flHelp = flag.Bool([]string{"h", "-help"}, false, "Print usage")
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flTlsVerify = flag.Bool([]string{"-tlsverify"}, dockerTlsVerify, "Use TLS and verify the remote (daemon: verify client, client: verify daemon)")
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// these are initialized in init() below since their default values depend on dockerCertPath which isn't fully initialized until init() runs
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flTrustKey *string
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flCa *string
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flCert *string
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flKey *string
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flHosts []string
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)
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func init() {
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// placeholder for trust key flag
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trustKeyDefault := filepath.Join(dockerCertPath, defaultTrustKeyFile)
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flTrustKey = &trustKeyDefault
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flCa = flag.String([]string{"-tlscacert"}, filepath.Join(dockerCertPath, defaultCaFile), "Trust only remotes providing a certificate signed by the CA given here")
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flCert = flag.String([]string{"-tlscert"}, filepath.Join(dockerCertPath, defaultCertFile), "Path to TLS certificate file")
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flKey = flag.String([]string{"-tlskey"}, filepath.Join(dockerCertPath, defaultKeyFile), "Path to TLS key file")
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opts.HostListVar(&flHosts, []string{"H", "-host"}, "The socket(s) to bind to in daemon mode or connect to in client mode, specified using one or more tcp://host:port, unix:///path/to/socket, fd://* or fd://socketfd.")
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flag.Usage = func() {
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fmt.Fprint(os.Stdout, "Usage: docker [OPTIONS] COMMAND [arg...]\n\nA self-sufficient runtime for linux containers.\n\nOptions:\n")
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flag.CommandLine.SetOutput(os.Stdout)
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flag.PrintDefaults()
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help := "\nCommands:\n"
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for _, command := range [][]string{
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{"attach", "Attach to a running container"},
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{"build", "Build an image from a Dockerfile"},
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{"commit", "Create a new image from a container's changes"},
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{"cp", "Copy files/folders from a container's filesystem to the host path"},
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{"create", "Create a new container"},
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{"diff", "Inspect changes on a container's filesystem"},
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{"events", "Get real time events from the server"},
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{"exec", "Run a command in a running container"},
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{"export", "Stream the contents of a container as a tar archive"},
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{"history", "Show the history of an image"},
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{"images", "List images"},
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{"import", "Create a new filesystem image from the contents of a tarball"},
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{"info", "Display system-wide information"},
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{"inspect", "Return low-level information on a container"},
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{"kill", "Kill a running container"},
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{"load", "Load an image from a tar archive"},
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{"login", "Register or log in to a Docker registry server"},
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{"logout", "Log out from a Docker registry server"},
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{"logs", "Fetch the logs of a container"},
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{"port", "Lookup the public-facing port that is NAT-ed to PRIVATE_PORT"},
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{"pause", "Pause all processes within a container"},
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{"ps", "List containers"},
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{"pull", "Pull an image or a repository from a Docker registry server"},
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{"push", "Push an image or a repository to a Docker registry server"},
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{"rename", "Rename an existing container"},
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{"restart", "Restart a running container"},
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{"rm", "Remove one or more containers"},
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{"rmi", "Remove one or more images"},
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{"run", "Run a command in a new container"},
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{"save", "Save an image to a tar archive"},
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{"search", "Search for an image on the Docker Hub"},
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{"start", "Start a stopped container"},
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{"stop", "Stop a running container"},
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{"tag", "Tag an image into a repository"},
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{"top", "Lookup the running processes of a container"},
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{"unpause", "Unpause a paused container"},
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{"version", "Show the Docker version information"},
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{"wait", "Block until a container stops, then print its exit code"},
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} {
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help += fmt.Sprintf(" %-10.10s%s\n", command[0], command[1])
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}
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help += "\nRun 'docker COMMAND --help' for more information on a command."
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fmt.Fprintf(os.Stdout, "%s\n", help)
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}
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}
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