- Instructions:
A ZooKeeper docker image built on ZooKeeper 3.5.1-alpha supports both static and dynamic configuration The docker image supports the following ZooKeeper modes: - STATIC mode - DYNAMIC mode - Environment:
OS :Red Hat Enterprise Linux Server release 6.6 (Santiago)
Kernel: 2.6.32-573.1.1.el6.x86_64
docker:version 1.4.1
ZooKeeper: ZooKeeper 3.5.1-alpha - Install docker
Follow the [installation guide] (https://docs.docker.com/installation/) to install docker in your system - Install docker image
docker build -t zookeeper .####STATIC MODE
- To start the image in static mode you need to specify a couple of environment variables for the container.
| Environment Variable | Description | example |
|---|---|---|
| MYID | The id of the server | MYID=1 |
| ADDITIONAL_ZOOKEEPER | Zookeeper service USES the IP and port | ADDITIONAL_ZOOKEEPER_1=server.1= localhost:2888:3888:participant;2181 |
| CONFIG_MODE | Create a zookeeper mode | CONFIG_MODE=STATIC |
- Start ZooKeeper Cluster with 3 docker containers
container zk1 is listening on localhost: 2181£¬2888£¬3888
container zk2 is listening on localhost: 2182£¬2889£¬3889
container zk3 is listening on localhost: 2183£¬2890£¬3890
```txt docker run -d
--name=zk1
--net=host
-v /data/zk1:/tmp/zookeeper
-e ADDITIONAL_ZOOKEEPER_1=server.1=0.0.0.0:2888:3888:participant;2181
-e ADDITIONAL_ZOOKEEPER_2=server.2=localhost:2889:3889:participant;2182
-e ADDITIONAL_ZOOKEEPER_3=server.3=localhost:2890:3890:participant;2183
-e CONFIG_MODE=STATIC
-e MYID=1
zookeeper
docker run -d
--name=zk2
--net=host
-v /data/zk2:/tmp/zookeeper
-e ADDITIONAL_ZOOKEEPER_1=server.1=localhost:2888:3888:participant;2181
-e ADDITIONAL_ZOOKEEPER_2=server.2=0.0.0.0:2889:3889:participant;2182
-e ADDITIONAL_ZOOKEEPER_3=server.3=localhost:2890:3890:participant;2183
-e CONFIG_MODE=STATIC
-e MYID=2
zookeeper
docker run -d \
--name=zk3 \
--net=host \
-v /data/zk3:/tmp/zookeeper \
-e ADDITIONAL_ZOOKEEPER_1=server.1=localhost:2888:3888:participant\;2181 \
-e ADDITIONAL_ZOOKEEPER_2=server.2=localhost:2889:3889:participant\;2182 \
-e ADDITIONAL_ZOOKEEPER_3=server.3=0.0.0.0:2890:3890:participant\;2183 \
-e CONFIG_MODE=STATIC \
-e MYID=3 \
zookeeper
```
####DYNAMIC MODE
- To start the image in dynamic mode you need to specify a couple of environment variables for the container.
| Environment Variable | Description | example |
|---|---|---|
| ZK_URL | The url of one of the zookeeper cluster | localhost:2181 |
| MYSERVER_URL | Zookeeper service using IP and port | MYSERVER_URL=localhost:2891:3891 |
| MYCLIENT_PORT | Clients use port | MYCLIENT_PORT=2184 |
| CONFIG_MODE | Create a zookeeper mode | CONFIG_MODE=DYNAMIC |
| MYID | The id of the server | MYID=4 |
- Start ZooKeeper Cluster with 2 docker containers
container zk4 is listening on localhost: 2184£¬2891£¬3891
container zk5 is listening on localhost: 2185£¬2892£¬3892
docker run -d \
--name=zk4 \
--net=host \
-v /data/zk4:/tmp/zookeeper \
-e ZK_URL=127.0.0.1:2181 \(Known cluster of any member of the IP and port)
-e MYSERVER_URL=0.0.0.0:2891:3891 \
-e MYCLIENT_PORT=2184 \
-e CONFIG_MODE=DYNAMIC \
-e MYID=4 \
zookeeper
docker run -d \
--name=zk5 \
--net=host \
-v /data/zk5:/tmp/zookeeper \
-e MYSERVER_URL=0.0.0.0:2892:3892 \
-e MYCLIENT_PORT=2185 \
-e CONFIG_MODE=DYNAMIC \
-e MYID=5 \
zookeeper