mirror of https://github.com/containers/podman.git
80 lines
3.1 KiB
Go
80 lines
3.1 KiB
Go
package main
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import (
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"github.com/containers/libpod/cmd/podman/cliconfig"
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"github.com/containers/libpod/libpod/define"
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"github.com/containers/libpod/pkg/adapter"
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"github.com/pkg/errors"
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"github.com/spf13/cobra"
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)
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var (
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execCommand cliconfig.ExecValues
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execDescription = `Execute the specified command inside a running container.
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`
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_execCommand = &cobra.Command{
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Use: "exec [flags] CONTAINER [COMMAND [ARG...]]",
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Short: "Run a process in a running container",
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Long: execDescription,
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RunE: func(cmd *cobra.Command, args []string) error {
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execCommand.InputArgs = args
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execCommand.GlobalFlags = MainGlobalOpts
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execCommand.Remote = remoteclient
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return execCmd(&execCommand)
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},
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Example: `podman exec -it ctrID ls
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podman exec -it -w /tmp myCtr pwd
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podman exec --user root ctrID ls`,
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}
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)
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func init() {
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execCommand.Command = _execCommand
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execCommand.SetHelpTemplate(HelpTemplate())
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execCommand.SetUsageTemplate(UsageTemplate())
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flags := execCommand.Flags()
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flags.SetInterspersed(false)
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flags.StringVar(&execCommand.DetachKeys, "detach-keys", define.DefaultDetachKeys, "Select the key sequence for detaching a container. Format is a single character [a-Z] or ctrl-<value> where <value> is one of: a-z, @, ^, [, , or _")
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// Clear the default, the value specified in the config file should have the
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// priority
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execCommand.DetachKeys = ""
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flags.StringArrayVarP(&execCommand.Env, "env", "e", []string{}, "Set environment variables")
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flags.StringSliceVar(&execCommand.EnvFile, "env-file", []string{}, "Read in a file of environment variables")
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flags.BoolVarP(&execCommand.Interactive, "interactive", "i", false, "Keep STDIN open even if not attached")
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flags.BoolVarP(&execCommand.Latest, "latest", "l", false, "Act on the latest container podman is aware of")
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flags.BoolVar(&execCommand.Privileged, "privileged", false, "Give the process extended Linux capabilities inside the container. The default is false")
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flags.BoolVarP(&execCommand.Tty, "tty", "t", false, "Allocate a pseudo-TTY. The default is false")
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flags.StringVarP(&execCommand.User, "user", "u", "", "Sets the username or UID used and optionally the groupname or GID for the specified command")
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flags.IntVar(&execCommand.PreserveFDs, "preserve-fds", 0, "Pass N additional file descriptors to the container")
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flags.StringVarP(&execCommand.Workdir, "workdir", "w", "", "Working directory inside the container")
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markFlagHiddenForRemoteClient("env-file", flags)
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markFlagHiddenForRemoteClient("latest", flags)
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markFlagHiddenForRemoteClient("preserve-fds", flags)
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}
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func execCmd(c *cliconfig.ExecValues) error {
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argLen := len(c.InputArgs)
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if c.Latest {
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if argLen < 1 {
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return errors.Errorf("you must provide a command to exec")
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}
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} else {
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if argLen < 1 {
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return errors.Errorf("you must provide one container name or id")
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}
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if argLen < 2 {
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return errors.Errorf("you must provide a command to exec")
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}
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}
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runtime, err := adapter.GetRuntimeNoStore(getContext(), &c.PodmanCommand)
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if err != nil {
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return errors.Wrapf(err, "error creating libpod runtime")
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}
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defer runtime.DeferredShutdown(false)
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exitCode, err = runtime.ExecContainer(getContext(), c)
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return err
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}
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