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authorValentin Rothberg <rothberg@redhat.com>2020-04-27 14:23:23 +0200
committerValentin Rothberg <rothberg@redhat.com>2020-04-29 07:22:18 +0200
commitb2414b580e236e011d60028e645ab41096035ee3 (patch)
tree7e639a4c40d728c3be4e65e2870f785ced13665e /cmd
parentbf4efc1953467907ae7d75d5f3ef3cd41505ee24 (diff)
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generate systemd
Implement `podman generate systemd` for Podman v2 and enable associated tests. Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
Diffstat (limited to 'cmd')
-rw-r--r--cmd/podman/generate/generate.go27
-rw-r--r--cmd/podman/generate/systemd.go57
-rw-r--r--cmd/podman/main.go1
3 files changed, 85 insertions, 0 deletions
diff --git a/cmd/podman/generate/generate.go b/cmd/podman/generate/generate.go
new file mode 100644
index 000000000..f04ef58a5
--- /dev/null
+++ b/cmd/podman/generate/generate.go
@@ -0,0 +1,27 @@
+package pods
+
+import (
+ "github.com/containers/libpod/cmd/podman/registry"
+ "github.com/containers/libpod/pkg/domain/entities"
+ "github.com/containers/libpod/pkg/util"
+ "github.com/spf13/cobra"
+)
+
+var (
+ // Command: podman _generate_
+ generateCmd = &cobra.Command{
+ Use: "generate",
+ Short: "Generate structured data based on containers and pods.",
+ Long: "Generate structured data (e.g., Kubernetes yaml or systemd units) based on containers and pods.",
+ TraverseChildren: true,
+ RunE: registry.SubCommandExists,
+ }
+ containerConfig = util.DefaultContainerConfig()
+)
+
+func init() {
+ registry.Commands = append(registry.Commands, registry.CliCommand{
+ Mode: []entities.EngineMode{entities.ABIMode},
+ Command: generateCmd,
+ })
+}
diff --git a/cmd/podman/generate/systemd.go b/cmd/podman/generate/systemd.go
new file mode 100644
index 000000000..55d770249
--- /dev/null
+++ b/cmd/podman/generate/systemd.go
@@ -0,0 +1,57 @@
+package pods
+
+import (
+ "fmt"
+
+ "github.com/containers/libpod/cmd/podman/registry"
+ "github.com/containers/libpod/cmd/podman/utils"
+ "github.com/containers/libpod/pkg/domain/entities"
+ "github.com/spf13/cobra"
+)
+
+var (
+ systemdTimeout uint
+ systemdOptions = entities.GenerateSystemdOptions{}
+ systemdDescription = `Generate systemd units for a pod or container.
+ The generated units can later be controlled via systemctl(1).`
+
+ systemdCmd = &cobra.Command{
+ Use: "systemd [flags] CTR|POD",
+ Short: "Generate systemd units.",
+ Long: systemdDescription,
+ RunE: systemd,
+ Args: cobra.MinimumNArgs(1),
+ Example: `podman generate systemd CTR
+ podman generate systemd --new --time 10 CTR
+ podman generate systemd --files --name POD`,
+ }
+)
+
+func init() {
+ registry.Commands = append(registry.Commands, registry.CliCommand{
+ Mode: []entities.EngineMode{entities.ABIMode, entities.TunnelMode},
+ Command: systemdCmd,
+ Parent: generateCmd,
+ })
+ flags := systemdCmd.Flags()
+ flags.BoolVarP(&systemdOptions.Name, "name", "n", false, "Use container/pod names instead of IDs")
+ flags.BoolVarP(&systemdOptions.Files, "files", "f", false, "Generate .service files instead of printing to stdout")
+ flags.UintVarP(&systemdTimeout, "time", "t", containerConfig.Engine.StopTimeout, "Stop timeout override")
+ flags.StringVar(&systemdOptions.RestartPolicy, "restart-policy", "on-failure", "Systemd restart-policy")
+ flags.BoolVarP(&systemdOptions.New, "new", "", false, "Create a new container instead of starting an existing one")
+ flags.SetNormalizeFunc(utils.AliasFlags)
+}
+
+func systemd(cmd *cobra.Command, args []string) error {
+ if cmd.Flags().Changed("time") {
+ systemdOptions.StopTimeout = &systemdTimeout
+ }
+
+ report, err := registry.ContainerEngine().GenerateSystemd(registry.GetContext(), args[0], systemdOptions)
+ if err != nil {
+ return err
+ }
+
+ fmt.Println(report.Output)
+ return nil
+}
diff --git a/cmd/podman/main.go b/cmd/podman/main.go
index 4cd0beee8..481214a38 100644
--- a/cmd/podman/main.go
+++ b/cmd/podman/main.go
@@ -4,6 +4,7 @@ import (
"os"
_ "github.com/containers/libpod/cmd/podman/containers"
+ _ "github.com/containers/libpod/cmd/podman/generate"
_ "github.com/containers/libpod/cmd/podman/healthcheck"
_ "github.com/containers/libpod/cmd/podman/images"
_ "github.com/containers/libpod/cmd/podman/manifest"