Add annotations for pods

Signed-off-by: Mrunal Patel <mrunalp@gmail.com>

server/sandbox.go

@@ -20,6 +20,7 @@ type sandbox struct {
 	name        string
 	logDir      string
 	labels      map[string]string
+	annotations map[string]string
 	containers  oci.Store
 }
 
@@ -129,7 +130,15 @@ func (s *Server) RunPodSandbox(ctx context.Context, req *pb.RunPodSandboxRequest
 	if err != nil {
 		return nil, err
 	}
+
+	// add annotations
+	annotations := req.GetConfig().GetAnnotations()
+	annotationsJSON, err := json.Marshal(annotations)
+	if err != nil {
+		return nil, err
+	}
 	g.AddAnnotation("ocid/labels", string(labelsJSON))
+	g.AddAnnotation("ocid/annotations", string(annotationsJSON))
 	g.AddAnnotation("ocid/log_path", logDir)
 	g.AddAnnotation("ocid/name", name)
 	containerName := name + "-infra"
@@ -139,10 +148,10 @@ func (s *Server) RunPodSandbox(ctx context.Context, req *pb.RunPodSandboxRequest
 		name:        name,
 		logDir:      logDir,
 		labels:      labels,
+		annotations: annotations,
 		containers:  oci.NewMemoryStore(),
 	})
 
-	annotations := req.GetConfig().GetAnnotations()
 	for k, v := range annotations {
 		g.AddAnnotation(k, v)
 	}