mirror of
https://github.com/podman-container-tools/podman.git
synced 2026-08-24 09:17:53 +00:00
d0a0a3fbd9
some podman commands do not require the use of a container/image store. in those cases, it is more effecient to not open the store, because that results in having to also close the store which can be costly when the system is under heavy write I/O loads. Signed-off-by: baude <bbaude@redhat.com>
74 lines
2.6 KiB
Go
74 lines
2.6 KiB
Go
package main
|
|
|
|
import (
|
|
"github.com/containers/libpod/cmd/podman/cliconfig"
|
|
"github.com/containers/libpod/libpod/define"
|
|
"github.com/containers/libpod/pkg/adapter"
|
|
"github.com/pkg/errors"
|
|
"github.com/spf13/cobra"
|
|
)
|
|
|
|
var (
|
|
execCommand cliconfig.ExecValues
|
|
|
|
execDescription = `Execute the specified command inside a running container.
|
|
`
|
|
_execCommand = &cobra.Command{
|
|
Use: "exec [flags] CONTAINER [COMMAND [ARG...]]",
|
|
Short: "Run a process in a running container",
|
|
Long: execDescription,
|
|
RunE: func(cmd *cobra.Command, args []string) error {
|
|
execCommand.InputArgs = args
|
|
execCommand.GlobalFlags = MainGlobalOpts
|
|
execCommand.Remote = remoteclient
|
|
return execCmd(&execCommand)
|
|
},
|
|
Example: `podman exec -it ctrID ls
|
|
podman exec -it -w /tmp myCtr pwd
|
|
podman exec --user root ctrID ls`,
|
|
}
|
|
)
|
|
|
|
func init() {
|
|
execCommand.Command = _execCommand
|
|
execCommand.SetHelpTemplate(HelpTemplate())
|
|
execCommand.SetUsageTemplate(UsageTemplate())
|
|
flags := execCommand.Flags()
|
|
flags.SetInterspersed(false)
|
|
flags.StringArrayVarP(&execCommand.Env, "env", "e", []string{}, "Set environment variables")
|
|
flags.BoolVarP(&execCommand.Interfactive, "interactive", "i", false, "Not supported. All exec commands are interactive by default")
|
|
flags.BoolVarP(&execCommand.Latest, "latest", "l", false, "Act on the latest container podman is aware of")
|
|
flags.BoolVar(&execCommand.Privileged, "privileged", false, "Give the process extended Linux capabilities inside the container. The default is false")
|
|
flags.BoolVarP(&execCommand.Tty, "tty", "t", false, "Allocate a pseudo-TTY. The default is false")
|
|
flags.StringVarP(&execCommand.User, "user", "u", "", "Sets the username or UID used and optionally the groupname or GID for the specified command")
|
|
|
|
flags.IntVar(&execCommand.PreserveFDs, "preserve-fds", 0, "Pass N additional file descriptors to the container")
|
|
flags.StringVarP(&execCommand.Workdir, "workdir", "w", "", "Working directory inside the container")
|
|
markFlagHiddenForRemoteClient("latest", flags)
|
|
}
|
|
|
|
func execCmd(c *cliconfig.ExecValues) error {
|
|
args := c.InputArgs
|
|
argStart := 1
|
|
if len(args) < 1 && !c.Latest {
|
|
return errors.Errorf("you must provide one container name or id")
|
|
}
|
|
if len(args) < 2 && !c.Latest {
|
|
return errors.Errorf("you must provide a command to exec")
|
|
}
|
|
if c.Latest {
|
|
argStart = 0
|
|
}
|
|
cmd := args[argStart:]
|
|
runtime, err := adapter.GetRuntimeNoStore(getContext(), &c.PodmanCommand)
|
|
if err != nil {
|
|
return errors.Wrapf(err, "error creating libpod runtime")
|
|
}
|
|
defer runtime.Shutdown(false)
|
|
|
|
err = runtime.Exec(c, cmd)
|
|
if errors.Cause(err) == define.ErrCtrStateInvalid {
|
|
exitCode = 126
|
|
}
|
|
return err
|
|
}
|