Add support for initContainers in job and task manager. (#279)

Author: chrismoos

api/v1beta1/flinkcluster_types.go

@@ -202,6 +202,9 @@ type JobManagerSpec struct {
 	// Volume mounts in the JobManager container.
 	VolumeMounts []corev1.VolumeMount `json:"volumeMounts,omitempty"`
 
+	// Init containers of the Job Manager pod.
+	InitContainers []corev1.Container `json:"initContainers,omitempty"`
+
 	// Selector which must match a node's labels for the JobManager pod to be
 	// scheduled on that node.
 	// More info: https://kubernetes.io/docs/concepts/configuration/assign-pod-node/
@@ -266,6 +269,9 @@ type TaskManagerSpec struct {
 	// More info: https://kubernetes.io/docs/concepts/storage/volumes/
 	VolumeMounts []corev1.VolumeMount `json:"volumeMounts,omitempty"`
 
+	// Init containers of the Task Manager pod.
+	InitContainers []corev1.Container `json:"initContainers,omitempty"`
+
 	// Selector which must match a node's labels for the TaskManager pod to be
 	// scheduled on that node.
 	// More info: https://kubernetes.io/docs/concepts/configuration/assign-pod-node/