Standalone Zookeeper v3.4.8 Swarm template

swarm-templates/zookeeper/0/README.md

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+# Zookeeper
+
+ZooKeeper is a centralized service for maintaining configuration information, naming, providing distributed synchronization, and providing group services. Visit the [Official Site](https://zookeeper.apache.org/).
+
+### Usage
+
+This is a standalone Zookeeper deployment suitable for development and testing purposes. As such, there is not much to configure.
+
+Once deployed, you may inspect Zookeeper information with the `zk-cli` command. If deployment was successful, you'll see something similar to this:
+
+```
+$ zk-cli
+Connecting to localhost:2181
+Welcome to ZooKeeper!
+JLine support is enabled
+
+WATCHER::
+
+WatchedEvent state:SyncConnected type:None path:null
+[zk: localhost:2181(CONNECTED) 0]
+```

swarm-templates/zookeeper/0/docker-compose.yml

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+zookeeper:
+  image: rancher/zookeeper:3.4.8-swarm
+  environment:
+    JVM_FLAGS: "-Xms${HEAP_SIZE} -Xmx${HEAP_SIZE}"

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

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+.catalog:
+  name: Zookeeper
+  version: 3.4.8-rancher1
+  description: |
+    ZooKeeper is a centralized service for maintaining configuration information, 
+    naming, providing distributed synchronization, and providing group services.
+  questions:
+    - variable: HEAP_SIZE
+      label: JVM Heap Size
+      description: Amount of memory allocated to the java heap
+      required: true
+      type: string
+      default: 512m
+zookeeper:
+  health_check:
+    port: 2181
+    interval: 5000
+    unhealthy_threshold: 3
+    request_line: ''
+    healthy_threshold: 2
+    response_timeout: 5000

swarm-templates/zookeeper/config.yml

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+name: Zookeeper
+description: |
+  Reliable distributed coordination (standalone only)
+version: 3.4.8-rancher1
+category: Clustering
+maintainer: James Oliver <joliver@rancher.com>
+minimum_rancher_version: v1.0.0-rc7