add "podman kube down" command

The "podman kube down" reads in a structured file of
Kubernetes YAML and removes pods based on the Kubernetes kind described in the YAML,
similiar to "podman play kube --down". Users will still be able to use
"podman play kube --down" and "podman kube play --down" to
perform the same function.

Signed-off-by: Niall Crowe <nicrowe@redhat.com>

1 files changed, 39 insertions, 0 deletions

diff --git a/cmd/podman/kube/down.go b/cmd/podman/kube/down.go
new file mode 100644
index 000000000..b8c025928
--- /dev/null
+++ b/cmd/podman/kube/down.go
@@ -0,0 +1,39 @@
+package pods
+
+import (
+	"github.com/containers/podman/v4/cmd/podman/common"
+	"github.com/containers/podman/v4/cmd/podman/registry"
+	"github.com/spf13/cobra"
+)
+
+var (
+	downDescription = `Reads in a structured file of Kubernetes YAML.
+
+  Removes pods that have been based on the Kubernetes kind described in the YAML.`
+
+	downCmd = &cobra.Command{
+		Use:               "down KUBEFILE|-",
+		Short:             "Remove pods based on Kubernetes YAML.",
+		Long:              downDescription,
+		RunE:              down,
+		Args:              cobra.ExactArgs(1),
+		ValidArgsFunction: common.AutocompleteDefaultOneArg,
+		Example: `podman kube down nginx.yml
+   cat nginx.yml | podman kube down -`,
+	}
+)
+
+func init() {
+	registry.Commands = append(registry.Commands, registry.CliCommand{
+		Command: downCmd,
+		Parent:  kubeCmd,
+	})
+}
+
+func down(cmd *cobra.Command, args []string) error {
+	reader, err := readerFromArg(args[0])
+	if err != nil {
+		return err
+	}
+	return teardown(reader)
+}