Add basic structure of podman init command

As part of this, rework the number of workers used by various
Podman tasks to match original behavior - need an explicit
fallthrough in the switch statement for that block to work as
expected.

Also, trivial change to Podman cleanup to work on initialized
containers - we need to reset to a different state after cleaning
up the OCI runtime.

Signed-off-by: Matthew Heon <matthew.heon@pm.me>

1 files changed, 64 insertions, 0 deletions

diff --git a/cmd/podman/init.go b/cmd/podman/init.go
new file mode 100644
index 000000000..68c80631d
--- /dev/null
+++ b/cmd/podman/init.go
@@ -0,0 +1,64 @@
+package main
+
+import (
+	"github.com/containers/libpod/cmd/podman/cliconfig"
+	"github.com/containers/libpod/pkg/adapter"
+	"github.com/opentracing/opentracing-go"
+	"github.com/pkg/errors"
+	"github.com/spf13/cobra"
+)
+
+var (
+	initCommand     cliconfig.InitValues
+	initDescription = `Initialize one or more containers, creating the OCI spec and mounts for inspection. Container names or IDs can be used.`
+
+	_initCommand = &cobra.Command{
+		Use:   "init [flags] CONTAINER [CONTAINER...]",
+		Short: "Initialize one or more containers",
+		Long:  initDescription,
+		RunE: func(cmd *cobra.Command, args []string) error {
+			initCommand.InputArgs = args
+			initCommand.GlobalFlags = MainGlobalOpts
+			initCommand.Remote = remoteclient
+			return initCmd(&initCommand)
+		},
+		Args: func(cmd *cobra.Command, args []string) error {
+			return checkAllAndLatest(cmd, args, false)
+		},
+		Example: `podman init --latest
+  podman init 3c45ef19d893
+  podman init test1`,
+	}
+)
+
+func init() {
+	initCommand.Command = _initCommand
+	initCommand.SetHelpTemplate(HelpTemplate())
+	initCommand.SetUsageTemplate(UsageTemplate())
+	flags := initCommand.Flags()
+	flags.BoolVarP(&initCommand.All, "all", "a", false, "Initialize all containers")
+	flags.BoolVarP(&initCommand.Latest, "latest", "l", false, "Act on the latest container podman is aware of")
+	markFlagHiddenForRemoteClient("latest", flags)
+}
+
+// initCmd initializes a container
+func initCmd(c *cliconfig.InitValues) error {
+	if c.Bool("trace") {
+		span, _ := opentracing.StartSpanFromContext(Ctx, "initCmd")
+		defer span.Finish()
+	}
+
+	ctx := getContext()
+
+	runtime, err := adapter.GetRuntime(ctx, &c.PodmanCommand)
+	if err != nil {
+		return errors.Wrapf(err, "could not get runtime")
+	}
+	defer runtime.Shutdown(false)
+
+	ok, failures, err := runtime.InitContainers(ctx, c)
+	if err != nil {
+		return err
+	}
+	return printCmdResults(ok, failures)
+}