Docker安裝zookeeper

docker pull zookeeper ，默認安裝最新的
當出現如下結果時, 表示鏡像已經下載完成了:
>>> docker pull zookeeper:latest

latest: Pulling from library/zookeeper
123275d6e508: Already exists                                                                                            
2750eaebe665: Pull complete                                                                                             
98ad45fdc135: Pull complete                                                                                             
a51062359ac5: Pull complete                                                                                             
cd982f90894b: Pull complete                                                                                             
4d85f4709f0f: Pull complete                                                                                             
48e09383f722: Pull complete                                                                                             
f9784b3748c5: Pull complete                                                                                             
Digest: sha256:def4c98a21f5da99130dabdb497b4446ee0fb718adc78be7655bff075726df2d
Status: Downloaded newer image for zookeeper:latest
docker.io/library/zookeeper:latest

>>> docker images
查看所有鏡像，就能看到zookeeper

ZK 鏡像的基本使用
啟動 ZK 鏡像
>>> docker run --name my_zookeeper -d zookeeper:latest
這個命令在后台運行一個 zookeeper 容器, 名字是 my_zookeeper, 並且它默認會導出 2181 端口

>>> docker ps -a

然后可以使用：docker logs -f my_zookeeper，查看 ZK 的運行情況, 輸出類似如下內容時, 表示 ZK 已經成功啟動了:
>>> docker logs -f my_zookeeper
ZooKeeper JMX enabled by default
Using config: /conf/zoo.cfg
...