add {generate,play} kube

Add the `podman generate kube` and `podman play kube` command.  The code
has largely been copied from Podman v1 but restructured to not leak the
K8s core API into the (remote) client.

Both commands are added in the same commit to allow for enabling the
tests at the same time.

Move some exports from `cmd/podman/common` to the appropriate places in
the backend to avoid circular dependencies.

Move definitions of label annotations to `libpod/define` and set the
security-opt labels in the frontend to make kube tests pass.

Implement rest endpoints, bindings and the tunnel interface.

Signed-off-by: Valentin Rothberg <rothberg@redhat.com>

1 files changed, 14 insertions, 0 deletions

diff --git a/pkg/domain/entities/generate.go b/pkg/domain/entities/generate.go
index 6d65b52f8..edd217615 100644
--- a/pkg/domain/entities/generate.go
+++ b/pkg/domain/entities/generate.go
@@ -1,5 +1,7 @@
 package entities
 
+import "io"
+
 // GenerateSystemdOptions control the generation of systemd unit files.
 type GenerateSystemdOptions struct {
 	// Files - generate files instead of printing to stdout.
@@ -20,3 +22,15 @@ type GenerateSystemdReport struct {
 	// entire content.
 	Output string
 }
+
+// GenerateKubeOptions control the generation of Kubernetes YAML files.
+type GenerateKubeOptions struct {
+	// Service - generate YAML for a Kubernetes _service_ object.
+	Service bool
+}
+
+// GenerateKubeReport
+type GenerateKubeReport struct {
+	// Reader - the io.Reader to reader the generated YAML file.
+	Reader io.Reader
+}