可使用docker内置的volume功能，将配置文件和Zookeeper的datadir映射至宿主机进行管理。
如在rancher中：
所以，宿主机必须存在：
1) zookeeper-config/，目录为Zookeeper所有配置文件，包含集群的选举节点IP和选举端口，主要zoo.cfg文件中。
ll zookeeper-config/
total 16
-rw-r--r-- 1 root root 535 Jan 4 17:43 configuration.xsl
-rw-r--r-- 1 root root 2161 Jan 4 17:43 log4j.properties
-rw-r--r-- 1 root root 1012 Jan 4 17:43 zoo.cfg
-rw-r--r-- 1 root root 922 Jan 4 17:43 zoo_sample.cf
2) zookeeper-data01/，目录对应zookeeper集群中的datadir，有存放一个myid文件，Zookeeper集群启动后产生的数据也会持久化到此宿主机目录下。Zookeeper集群有3个znode节点，所以datadir有：
zookeeper-data02/
zookeeper-data03/
ll /data/docker/
drwxr-xr-x 3 root root 48 Jan 5 17:25 ms-zookeeper3.4.10
drwxr-xr-x 2 root root 92 Jan 5 16:54 zookeeper-config
drwxr-xr-x 2 root root 18 Jan 4 17:59 zookeeper-data01
drwxr-xr-x 2 root root 18 Jan 4 18:02 zookeeper-data02
drwxr-xr-x 2 root root 18 Jan 4 18:02 zookeeper-data03
2.镜像构建
2.1 下载zookeeper-3.4.10.tar.gz包
wget https://mirrors.cnnic.cn/apache/zookeeper/zookeeper-3.4.10/zookeeper-3.4.10.tar.gz
创建zookeeper-3.4.10构建build目录
mkdir -p /data/docker/ms-zookeeper3.4.10/
-rw-r--r-- 1 root root 207 Jan 4 18:58 dockerfile
drwxr-xr-x 10 root root 4096 Mar 23 2017 zookeeper-3.4.10
2.2 编写dockfile
vim /data/docker/ms-zookeeper3.4.10/dockerfile
FROM ms/jdk1.8:v1
MAINTAINER zookeeper3.4.10 "name@alaxiaoyou.com"
ADD zookeeper-3.4.10/ /usr/local/zookeeper/
WORKDIR /usr/local/zookeeper
ENTRYPOINT ./bin/zkServer.sh start && tail -f zookeeper.out
其中zookeeper-3.4.10目录添加至镜像中，然后交付。但只是一个Zookeeper运行的模板，具体配置可通过volume，用宿主机的配置覆盖镜像中的配置。
2.3 构建，镜像
cd /data/docker/ms-zookeeper3.4.10
docker build -t ms/zookeeper3.4.10:v1 .
docker images | grep zook
ms/zookeeper3.4.10
v1
cb1bea8cf3d5
23 hours ago
567MB
registry.cn-hangzhou.aliyuncs.com/xmbaby-tmp/tmp-zookeeper-ms
v1
cb1bea8cf3d5
23 hours ago
567MB
镜像运行，本地docker本身命令行启动Zookeeper容器
[root@rancher-qa docker]# docker run --name zookeeper01 -it -v /data/docker/zookeeper-config/:/usr/local/zookeeper/conf/ -v /data/docker/zookeeper-data01/:/tmp/zookeeper/ ms/zookeeper3.4.10 /bin/bash
以上docker命令行启动卷映射目录正常，宿主机目录能映射到容器中。但rancher中用UI界面进行卷映射时，发现宿主机映射的目录在容器中并未映射到。待解决。
此问题是由于，rancher有两台主机，而容器都运行在未进行设置映射目录的宿主机中。此问题困扰近一周时间，<_>
2.4 登录阿里云容器镜像服务
创建镜像仓库名称tmp-zookeeper-ms
2.5 zookeeper镜像push到阿里云Docker Registry
切换到rancher/server
登录到阿里云Docker Registry
登录Docker Registry -> 打tag -> push到Docker Registry
[root@rancher-qa ms-zookeeper3.4.10]# docker login --username=name@alaxiaoyou.com registry.cn-hangzhou.aliyuncs.com
Password:
Login Succeeded
[root@rancher-qa ms-zookeeper3.4.10]#
[root@rancher-qa ms-zookeeper3.4.10]# docker tag cb1bea8cf3d5 registry.cn-hangzhou.aliyuncs.com/xmbaby-tmp/tmp-zookeeper-ms:v1
[root@rancher-qa ms-zookeeper3.4.10]#
[root@rancher-qa ms-zookeeper3.4.10]# docker push registry.cn-hangzhou.aliyuncs.com/xmbaby-tmp/tmp-zookeeper-ms:v1
The push refers to a repository [registry.cn-hangzhou.aliyuncs.com/xmbaby-tmp/tmp-zookeeper-ms]
ed1b06ecb437: Pushed
96f6833b8de8: Mounted from xmbaby-tmp/ms-jdk1.8
071d8bd76517: Mounted from xmbaby-tmp/ms-jdk1.8
v1: digest: sha256:c55b36fb410d7db9409e3ca4fb27e0d8d2d05e1970d99270ff9d5a6d8ee25e0b size: 954
[root@rancher-qa ms-zookeeper3.4.10]# docker images | grep zook
registry.cn-hangzhou.aliyuncs.com/xmbaby-tmp/tmp-zookeeper-ms
latest
cb1bea8cf3d5
8 days ago
567MB
registry.cn-hangzhou.aliyuncs.com/xmbaby-tmp/tmp-zookeeper-ms
v1
cb1bea8cf3d5
8 days ago
567MB
ms/zookeeper3.4.10
latest
cb1bea8cf3d5
8 days ago
567MB
ms/zookeeper3.4.10
v1
cb1bea8cf3d5
8 days ago
567MB
2.6查看
至此，tmp-zookeeper-ms镜像交付完成。
