Uses the kafka image as Zookeeper service...

to reduce image download times and use a supported version.
Initial config is from https://zookeeper.apache.org/doc/r3.4.10/zookeeperAdmin.html#sc_zkMulitServerSetup
and the fixes for stateful set are from https://github.com/solsson/zookeeper-docker

Author: solsson

zookeeper/10zookeeper-config.yml

@@ -0,0 +1,24 @@
+kind: ConfigMap
+metadata:
+  name: zookeeper-config
+  namespace: kafka
+apiVersion: v1
+data:
+  zookeeper.properties: |-
+    tickTime=2000
+    dataDir=/var/lib/zookeeper/data
+    dataLogDir=/var/lib/zookeeper/log
+    clientPort=2181
+    initLimit=5
+    syncLimit=2
+    server.1=zoo-0.zoo:2888:3888:participant
+    server.2=zoo-1.zoo:2888:3888:participant
+    server.3=zoo-2.zoo:2888:3888:participant
+    server.4=zoo-3.zoo:2888:3888:participant
+    server.5=zoo-4.zoo:2888:3888:participant
+    
+  log4j.properties: |-
+    log4j.rootLogger=INFO, stdout
+    log4j.appender.stdout=org.apache.log4j.ConsoleAppender
+    log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
+    log4j.appender.stdout.layout.ConversionPattern=[%d] %p %m (%c)%n

zookeeper/50zoo.yml

@@ -14,10 +14,17 @@ spec:
       terminationGracePeriodSeconds: 10
       containers:
       - name: zookeeper
-        image: solsson/zookeeper-statefulset:3.4.10@sha256:0ad93c98d5165b4eb747c4b0dd04a7a448a5c4b4cbcaa4bffc15018b76b81bb5
-        env:
-        - name: ZOO_SERVERS
-          value: server.1=zoo-0.zoo:2888:3888:participant server.2=zoo-1.zoo:2888:3888:participant server.3=zoo-2.zoo:2888:3888:participant server.4=zoo-3.zoo:2888:3888:participant server.5=zoo-4.zoo:2888:3888:participant
+        image: solsson/kafka:0.11.0.0-rc2@sha256:c1316e0131f4ec83bc645ca2141e4fda94e0d28f4fb5f836e15e37a5e054bdf1
+        command:
+        - sh
+        - -c
+        - >
+          set -e;
+          export ZOOKEEPER_SERVER_ID=$((${HOSTNAME##*-} + 1));
+          echo "${ZOOKEEPER_SERVER_ID:-1}" | tee /var/lib/zookeeper/data/myid;
+          sed -i "s/server\.$ZOOKEEPER_SERVER_ID\=[a-z0-9.-]*/server.$ZOOKEEPER_SERVER_ID=0.0.0.0/" config/zookeeper.properties;
+          cat config/zookeeper.properties;
+          ./bin/zookeeper-server-start.sh config/zookeeper.properties
         ports:
         - containerPort: 2181
           name: client
@@ -26,13 +33,13 @@ spec:
         - containerPort: 3888
           name: leader-election
         volumeMounts:
+        - name: config
+          mountPath: /usr/local/kafka/config
         - name: datadir
-          mountPath: /data
-        # There's defaults in this folder, such as logging config
-        #- name: conf
-        #  mountPath: /conf
+          mountPath: /var/lib/zookeeper/data
       volumes:
-      #- name: conf
-      #  emptyDir: {}
+      - name: config
+        configMap:
+          name: zookeeper-config
       - name: datadir
         emptyDir: {}