podman-remote pod inspect|exists

enable the remote client to be able to inspect a pod.  also, bonus of
enabling the podman pod exists command which returns a 0 or 1 depending
on whether the given pod exists.

Signed-off-by: baude <bbaude@redhat.com>

2 files changed, 73 insertions, 3 deletions

diff --git a/libpod/adapter/pods.go b/libpod/adapter/pods.go
index 59642c42e..9841c20c0 100644
--- a/libpod/adapter/pods.go
+++ b/libpod/adapter/pods.go
@@ -36,3 +36,19 @@ func (r *LocalRuntime) RemovePods(ctx context.Context, cli *cliconfig.PodRmValue
 	}
 	return podids, errs
 }
+
+// GetLatestPod gets the latest pod and wraps it in an adapter pod
+func (r *LocalRuntime) GetLatestPod() (*Pod, error) {
+	pod := Pod{}
+	p, err := r.Runtime.GetLatestPod()
+	pod.Pod = p
+	return &pod, err
+}
+
+// LookupPod gets a pod by name or id and wraps it in an adapter pod
+func (r *LocalRuntime) LookupPod(nameOrID string) (*Pod, error) {
+	pod := Pod{}
+	p, err := r.Runtime.LookupPod(nameOrID)
+	pod.Pod = p
+	return &pod, err
+}
diff --git a/libpod/adapter/pods_remote.go b/libpod/adapter/pods_remote.go
index 3fb147f48..57c78821f 100644
--- a/libpod/adapter/pods_remote.go
+++ b/libpod/adapter/pods_remote.go
@@ -4,10 +4,13 @@ package adapter
 
 import (
 	"context"
+	"encoding/json"
 
 	"github.com/containers/libpod/cmd/podman/cliconfig"
 	"github.com/containers/libpod/cmd/podman/varlink"
 	"github.com/containers/libpod/libpod"
+	"github.com/pkg/errors"
+	"github.com/ulule/deepcopier"
 )
 
 // Pod ...
@@ -16,11 +19,13 @@ type Pod struct {
 }
 
 type remotepod struct {
-	config  *libpod.PodConfig
-	state   *libpod.PodInspectState
-	Runtime *LocalRuntime
+	config     *libpod.PodConfig
+	state      *libpod.PodInspectState
+	containers []libpod.PodContainerInfo
+	Runtime    *LocalRuntime
 }
 
+// RemovePods removes one or more based on the cli context.
 func (r *LocalRuntime) RemovePods(ctx context.Context, cli *cliconfig.PodRmValues) ([]string, []error) {
 	var (
 		rmErrs []error
@@ -42,3 +47,52 @@ func (r *LocalRuntime) RemovePods(ctx context.Context, cli *cliconfig.PodRmValue
 	}
 	return rmPods, rmErrs
 }
+
+// Inspect looks up a pod by name or id and embeds its data into a remote pod
+// object.
+func (r *LocalRuntime) Inspect(nameOrID string) (*Pod, error) {
+	reply, err := iopodman.PodStateData().Call(r.Conn, nameOrID)
+	if err != nil {
+		return nil, err
+	}
+	data := libpod.PodInspect{}
+	if err := json.Unmarshal([]byte(reply), &data); err != nil {
+		return nil, err
+	}
+	pod := Pod{}
+	pod.Runtime = r
+	pod.config = data.Config
+	pod.state = data.State
+	pod.containers = data.Containers
+	return &pod, nil
+}
+
+// GetLatestPod gets the latest pod and wraps it in an adapter pod
+func (r *LocalRuntime) GetLatestPod() (*Pod, error) {
+	reply, err := iopodman.GetPodsByContext().Call(r.Conn, false, true, nil)
+	if err != nil {
+		return nil, err
+	}
+	if len(reply) > 0 {
+		return r.Inspect(reply[0])
+	}
+	return nil, errors.New("no pods exist")
+}
+
+// LookupPod gets a pod by name or ID and wraps it in an adapter pod
+func (r *LocalRuntime) LookupPod(nameOrID string) (*Pod, error) {
+	return r.Inspect(nameOrID)
+}
+
+// Inspect, like libpod pod inspect, returns a libpod.PodInspect object from
+// the data of a remotepod data struct
+func (p *Pod) Inspect() (*libpod.PodInspect, error) {
+	config := new(libpod.PodConfig)
+	deepcopier.Copy(p.remotepod.config).To(config)
+	inspectData := libpod.PodInspect{
+		Config:     config,
+		State:      p.remotepod.state,
+		Containers: p.containers,
+	}
+	return &inspectData, nil
+}