added elasticsearch init container which sets sysctl vm.max_map_count

kubernetes/51_statefulset_elasticsearch.yaml

@@ -20,6 +20,12 @@ spec:
       - name: zammad-elasticsearch
         persistentVolumeClaim:
           claimName: zammad-elasticsearch
+      initContainers:
+      - name: sysctl
+        image: busybox
+        command: ["sysctl", "-w", "vm.max_map_count=262144"]
+        securityContext:
+          privileged: true                
       containers:
       - name: zammad-elasticsearch
         image: zammad/zammad-docker-compose:zammad-elasticsearch

kubernetes/Readme.md

@@ -17,9 +17,6 @@
 * minikube start --memory=4096 --cpus=2
 * minikube addons enable ingress
 * echo "$(minikube ip) zammad.example.com" | sudo tee -a /etc/hosts
-* minikube ssh
-  * su -
-  * sysctl -w vm.max_map_count=262144
 * kubectl apply -f .
 * minikube dashboard
   * switch to namespace "zammad"