1、前置条件是系统上安装了docker和git
[root@localhost ~]# git version
git version 1.8.3.1
2、从github上拉取代码
[root@localhost src]# git clone https://github.com/Activiti/activiti-cloud-examples
Cloning into 'activiti-cloud-examples'...
remote: Counting objects: 2509, done.
remote: Compressing objects: 100% (5/5), done.
remote: Total 2509 (delta 1), reused 1 (delta 1), pack-reused 2503
Receiving objects: 100% (2509/2509), 485.16 KiB | 15.00 KiB/s, done.
Resolving deltas: 100% (1075/1075), done.
3、进入项目docker的目录
[root@localhost src]# mv activiti-cloud-examples acticitiCloud
[root@localhost src]# cd acticitiCloud/
[root@localhost acticitiCloud]# cd docker/
[root@localhost docker]# ll
total 16
-rw-r--r--. 1 root root 3137 Jul 3 08:37 application-docker-compose.yml
drwxr-xr-x. 2 root root 91 Jul 3 08:37 config-server
-rw-r--r--. 1 root root 422 Jul 3 08:37 frontend-docker-compose.yml
-rw-r--r--. 1 root root 710 Jul 3 08:37 infrastructure-docker-compose.yml
-rw-r--r--. 1 root root 379 Jul 3 08:37 modelling-docker-compose.yml
[root@localhost docker]#
4、问题，docker-compose: command not found
[root@localhost docker]# docker-compose -f infrastructure-docker-compose.yml up -d
-bash: docker-compose: command not found
解决方案:
[root@localhost docker]# yum -y install epel-release
[root@localhost docker]# yum -y install python-pip
[root@localhost docker]# pip install --upgrade pip
[root@localhost docker]# pip install docker-compose
5、执行（等待时间够长的）:docker-compose -f infrastructure-docker-compose.yml up -d
[root@localhost docker]# docker-compose -f infrastructure-docker-compose.yml up -d
6、执行（等待的时间还是长，哈哈）:docker-compose -f application-docker-compose.yml up -d
[root@localhost docker]# docker-compose -f application-docker-compose.yml up -d
7、执行命令:docker ps,找出访问登录的端口，我这里的访问端口是8180
8、访问我这里的地址:http://192.168.56.120:8180/auth/;官方的文档说的地址端口是:3000(感觉不对，我哭)
9、点击Administration Console
10、登录的帐号密码是:admin/admin;官方文档是说的：Login with testuser/password（我试了好久，累死我了。）
11、获取镜像:docker pull activiti/activiti-cloud-demo-ui:7-201802-EA
# 启动下载下来的镜像
docker run -p 3000:3000 -d -e "ACT_GATEWAY_URL=http://localhost:8080" -e "ACT_IDM_URL=http://localhost:8180/auth/token" activiti/activiti-cloud-demo-ui:7-201802-EA
