Added zookeeper package for kubernetes. Some bugfixes for cattle packages

kubernetes-templates/zookeeper/0/README.md

@@ -0,0 +1,31 @@
+# Apache Zookeeper (Experimental)
+
+### Info:
+
+ This template creates, scale in and scale out a multinodes zk (zookeeper) cluster on top of k8s. The configuration is generated with confd watching k8s metadata. 
+ Cluster size are variable after deployment, and get reconfigured if you scale.
+
+ The services generates ZKID's (saving them as pod labels) and start the zookeeper cluster.
+ 
+ 
+### Usage:
+
+ Select Apache Zookeeper from catalog. 
+
+ Change the following zookeeper default parameters, if you need:
+
+- zk_name="zookeeper"			# Name of the k8s rc and service.
+- zk_namespace="default"		# Name of the k8s namespace
+- zk_scale="3"					# Number of zk replicas
+- zk_mem="512"					# Mem to configure zk.
+- zk_data_dir="/opt/zk/data"	# Zk dataDir param value
+- zk_init_limit="10"			# zk initLimit param value
+- zk_max_client_cxns="500"		# zk maxClientCnxns param value
+- zk_sync_limit="5"				# zk syncLimit param value
+- zk_tick_time="2000"			# zk tickTime param value
+ 
+ Click deploy.
+ 
+ Zookeeper can now be accessed over the Rancher network. 
+
+Testing Feature: When you scale the cluster, zero downtime is expected... 

kubernetes-templates/zookeeper/0/rancher-compose.yml

@@ -0,0 +1,73 @@
+.catalog:
+  name: Zookeeper
+  version: 3.4.8-k8s1
+  description: |
+    (Experimental) Apache Zookeeper cluster.
+  minimum_rancher_version: v0.59.0
+  maintainer: "Raul Sanchez <rawmind@gmail.com>"
+  uuid: zk-0
+  questions:
+    - variable: "zk_name"
+      description: "Name of zookeeper rc and service."
+      label: "K8s rc name:"
+      required: true
+      default: "zookeeper"
+      type: "string"
+    - variable: "zk_namespace"
+      description: "Name of zookeeper namespace."
+      label: "K8s namespace:"
+      required: true
+      default: "default"
+      type: "string"
+    - variable: "zk_scale"
+      description: "Number of zk nodes. Note: Recommended an odd number"
+      label: "Zk Nodes:"
+      required: true
+      default: 3
+      type: "int"
+    - variable: "zk_mem"
+      description: "Amount of memory to config zk."
+      label: "Zk Memory (mb):"
+      required: true
+      default: 512 
+      type: "int"
+    - variable: "zk_init_limit"
+      description: "Time to allow followers to connect and sync with leader"
+      label: "Zk init limit (ticks):"
+      required: true
+      default: 10
+      type: "int"
+    - variable: "zk_data_dir"
+      description: "Directory where zookeeper store data"
+      label: "Zk data dir:"
+      required: true
+      default: "/opt/zk/data"
+      type: "string"
+    - variable: "zk_max_client_cxns"
+      description: "Max client concurrent connections"
+      label: "Zk max client cxns:"
+      required: true
+      default: 500
+      type: "int"
+    - variable: "zk_sync_limit"
+      description: "Time to allow followers to sync with leader"
+      label: "Zk sync limit (ticks):"
+      required: true
+      default: 5
+      type: "int"
+    - variable: "zk_tick_time"
+      description: "Tick time length"
+      label: "Zk tick time (ms):"
+      required: true
+      default: 2000
+      type: "int"
+zk:
+  scale: ${zk_scale}
+  retain_ip: true
+  health_check:
+    port: 2181
+    interval: 5000
+    unhealthy_threshold: 3
+    request_line: ''
+    healthy_threshold: 2
+    response_timeout: 5000

kubernetes-templates/zookeeper/0/zk-rc.yml

@@ -0,0 +1,80 @@
+apiVersion: v1
+kind: ReplicationController
+metadata: 
+  name: "${zk_name}"
+  namespace: "${zk_namespace}"
+  labels:
+    name: "${zk_name}"
+spec:
+  replicas: ${zk_scale}
+  selector:
+    name: "${zk_name}"
+  template:
+    metadata: 
+      labels:
+        name: "${zk_name}"
+      annotations:
+    spec:
+      containers:
+        - name: "zk-conf"
+          image: "rawmind/k8s-zk:3.4.8-10"
+          volumeMounts:
+            - mountPath: "/opt/tools"
+              name: "zk-conf"
+          ports: 
+          imagePullPolicy: "IfNotPresent"
+        - name: "zk-volume"
+          image: "rawmind/alpine-volume:0.0.2-1"
+          env:
+            - name: SERVICE_UID
+              value: "10002"
+            - name: SERVICE_GID
+              value: "10002"
+            - name: SERVICE_VOLUME
+              value: "${kafka_log_dir}"
+            - name: KEEP_ALIVE
+              value: "1"
+          volumeMounts:
+            - mountPath: "${zk_data_dir}"
+              name: "zk-data"
+          ports: 
+          imagePullPolicy: "IfNotPresent"
+        - name: "zk-service"
+          image: "rawmind/alpine-zk:3.4.8-16"
+          env:
+            - name: JVMFLAGS
+              value: "-Xmx${zk_mem}m -Xms${zk_mem}m"
+            - name: ZK_DATA_DIR
+              value: "${zk_data_dir}"
+            - name: ZK_INIT_LIMIT
+              value: "${zk_init_limit}"
+            - name: ZK_MAX_CLIENT_CXNS
+              value: "${zk_max_client_cxns}"
+            - name: ZK_SYNC_LIMIT
+              value: "${zk_sync_limit}"
+            - name: ZK_TICK_TIME
+              value: "${zk_tick_time}"
+            - name: POD_NAMESPACE
+              value: "${zk_namespace}"
+          volumeMounts:
+            - mountPath: "${zk_data_dir}"
+              name: "zk-data"
+            - mountPath: "/opt/tools"
+              name: "zk-conf"
+          ports:
+            - containerPort: 2181
+              name: "zk-client"
+              protocol: "TCP"
+            - containerPort: 2888
+              name: "zk-server"
+              protocol: "TCP"
+            - containerPort: 3888
+              name: "zk-leader"
+              protocol: "TCP"
+          imagePullPolicy: "IfNotPresent"
+      restartPolicy: "Always"
+      volumes:
+        - name: "zk-data"
+          emptyDir: {}
+        - name: "zk-conf"
+          emptyDir: {}

kubernetes-templates/zookeeper/0/zk-service.yml

@@ -0,0 +1,23 @@
+apiVersion: v1
+kind: Service
+metadata:
+  name: "${zk_name}"
+  namespace: "${zk_namespace}"
+  labels:
+    name: "${zk_name}"
+spec:
+  ports:
+  - port: 2181
+    targetPort: 2181
+    name: "zk-client"
+    protocol: "TCP"
+  - port: 2888
+    targetPort: 2888
+    name: "zk-server"
+    protocol: "TCP"
+  - port: 3888
+    targetPort: 3888
+    name: "zk-leader"
+    protocol: "TCP"
+  selector:
+    name: "${zk_name}"

kubernetes-templates/zookeeper/config.yml

@@ -0,0 +1,7 @@
+name: Apache Zookeeper
+description: |
+  (Experimental) Zookeeper cluster
+version: 3.4.8-k8s1
+category: Clustering
+maintainer: "Raul Sanchez <rawmind@gmail.com>"
+projectURL: https://github.com/rawmind0/alpine-zk

templates/zookeeper/1/README.md

@@ -24,4 +24,4 @@
  
  Zookeeper can now be accessed over the Rancher network. 
 
- Note: When you scale the cluster, zero downtime is not guaranteed..yet..
+ Note: When you scale the cluster, zero downtime is expected...

templates/zookeeper/1/docker-compose.yml

@@ -1,6 +1,6 @@
 zk:
   tty: true
-  image: rawmind/alpine-zk:3.4.8-4
+  image: rawmind/alpine-zk:3.4.8-16
   volumes_from:
     - zk-volume
     - zk-conf
@@ -21,7 +21,9 @@ zk-conf:
     io.rancher.scheduler.affinity:container_label_soft_ne: io.rancher.stack_service.name=$${stack_name}/$${service_name}
     io.rancher.container.hostname_override: container_name
     io.rancher.container.start_once: true
-  image: rawmind/rancher-zk:0.3.3
+  image: rawmind/rancher-zk:3.4.8-5
+  volumes:
+    - /opt/tools
 zk-volume:
   net: none
   labels:
@@ -29,12 +31,10 @@ zk-volume:
     io.rancher.container.hostname_override: container_name
     io.rancher.container.start_once: true
   environment:
-    - SERVICE_USER=zookeeper
     - SERVICE_UID=10002
-    - SERVICE_GROUP=zookeeper 
     - SERVICE_GID=10002
     - SERVICE_VOLUME=${zk_data_dir}
   volumes:
     - ${zk_data_dir}
   volume_driver: local
-  image: rawmind/alpine-volume:0.0.1-1
+  image: rawmind/alpine-volume:0.0.2-1

templates/zookeeper/config.yml

@@ -4,5 +4,5 @@ description: |
 version: 3.4.8-rancher1
 category: Clustering
 maintainer: "Raul Sanchez <rawmind@gmail.com>"
-minimum_rancher_version: v0.59.0
+projectURL: https://github.com/rawmind0/alpine-zk
-license: 
+license: