Add initContainers & ES_JAVA_OPTS to enable 5.5.1

staging/elasticsearch/es-rc.yaml

@@ -12,13 +12,21 @@ spec:
         component: elasticsearch
     spec:
       serviceAccount: elasticsearch
+      initContainers:
+      - name: init-sysctl
+        image: busybox
+        imagePullPolicy: IfNotPresent
+        command: ["sysctl", "-w", "vm.max_map_count=262144"]
+        securityContext:
+          privileged: true
       containers:
       - name: es
         securityContext:
+          privileged: true
           capabilities:
             add:
               - IPC_LOCK
-        image: quay.io/pires/docker-elasticsearch-kubernetes:1.7.1-4
+        image: quay.io/pires/docker-elasticsearch-kubernetes:5.5.1
         env:
         - name: KUBERNETES_CA_CERTIFICATE_FILE
           value: /var/run/secrets/kubernetes.io/serviceaccount/ca.crt
@@ -36,6 +44,8 @@ spec:
           value: "true"
         - name: HTTP_ENABLE
           value: "true"
+        - name: "ES_JAVA_OPTS"
+          value: "-Xms256m -Xmx256m"
         ports:
         - containerPort: 9200
           name: http