diff options
Diffstat (limited to 'cmd/podman/generate_systemd.go')
-rw-r--r-- | cmd/podman/generate_systemd.go | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/cmd/podman/generate_systemd.go b/cmd/podman/generate_systemd.go new file mode 100644 index 000000000..b4779e512 --- /dev/null +++ b/cmd/podman/generate_systemd.go @@ -0,0 +1,70 @@ +package main + +import ( + "fmt" + + "github.com/containers/libpod/cmd/podman/cliconfig" + "github.com/containers/libpod/pkg/adapter" + "github.com/containers/libpod/pkg/systemdgen" + "github.com/pkg/errors" + "github.com/spf13/cobra" +) + +var ( + containerSystemdCommand cliconfig.GenerateSystemdValues + containerSystemdDescription = `Command generates a systemd unit file for a Podman container + ` + _containerSystemdCommand = &cobra.Command{ + Use: "systemd [flags] CONTAINER | POD", + Short: "Generate a systemd unit file for a Podman container", + Long: containerSystemdDescription, + RunE: func(cmd *cobra.Command, args []string) error { + containerSystemdCommand.InputArgs = args + containerSystemdCommand.GlobalFlags = MainGlobalOpts + containerSystemdCommand.Remote = remoteclient + return generateSystemdCmd(&containerSystemdCommand) + }, + Args: func(cmd *cobra.Command, args []string) error { + if len(args) > 1 || len(args) < 1 { + return errors.New("provide only one container name or ID") + } + return nil + }, + Example: `podman generate kube ctrID +`, + } +) + +func init() { + containerSystemdCommand.Command = _containerSystemdCommand + containerSystemdCommand.SetHelpTemplate(HelpTemplate()) + containerSystemdCommand.SetUsageTemplate(UsageTemplate()) + flags := containerSystemdCommand.Flags() + flags.BoolVarP(&containerSystemdCommand.Name, "name", "n", false, "use the container name instead of ID") + flags.IntVarP(&containerSystemdCommand.StopTimeout, "timeout", "t", -1, "stop timeout override") + flags.StringVar(&containerSystemdCommand.RestartPolicy, "restart-policy", "on-failure", "applicable systemd restart-policy") +} + +func generateSystemdCmd(c *cliconfig.GenerateSystemdValues) error { + runtime, err := adapter.GetRuntime(getContext(), &c.PodmanCommand) + if err != nil { + return errors.Wrapf(err, "could not get runtime") + } + defer runtime.Shutdown(false) + + // User input stop timeout must be 0 or greater + if c.Flag("timeout").Changed && c.StopTimeout < 0 { + return errors.New("timeout value must be 0 or greater") + } + // Make sure the input restart policy is valid + if err := systemdgen.ValidateRestartPolicy(c.RestartPolicy); err != nil { + return err + } + + unit, err := runtime.GenerateSystemd(c) + if err != nil { + return err + } + fmt.Println(unit) + return nil +} |