add init container

cbioondemandK8S/src/main/java/cz/muni/ics/edirex/cbioondemandK8S/service/KubernetesImpl.java

@@ -212,6 +212,7 @@ public class KubernetesImpl implements CBioOnDemandService {
         V1ReplicaSet replicaSet = Utils.deepCopy(cbioReplicaSet, V1ReplicaSet.class);
         addLabelsAndSelectors(replicaSet, userID, id);
         addDbHost(replicaSet, Host);
+        addDbHostToInit(replicaSet, Host);
         addMoveAndID(replicaSet, move, samplesId);
         addUrl(replicaSet, url);
         V1ReplicaSet result = api.createReplicaSet(replicaSet, NAMESPACE);
@@ -280,6 +281,15 @@ public class KubernetesImpl implements CBioOnDemandService {
                 .setValue(Host);
     }
 
+    private void addDbHostToInit(V1ReplicaSet replicaSet, String Host){
+        replicaSet.getSpec()
+                .getTemplate()
+                .getSpec()
+                .getInitContainers().get(0)
+                .getEnv().get(0)
+                .setValue(Host);
+    }
+
     private void addUrl(V1ReplicaSet replicaSet, String url) {
         replicaSet.getSpec()
                 .getTemplate()

cbioondemandK8S/src/main/resources/cbio-replicaset.yml

@@ -28,6 +28,13 @@ spec:
         # generated by API unique for user
         #instance: "1"
     spec:
+      initContainers:
+        - name: waitForDb
+          image: lpivo/wait_for_db
+          env:
+            - name: DBHOST
+              # generated by API from service name
+              value: cbio-on-demand-dbpjvrw
       imagePullSecrets:
         - name: dataloding
       containers: