1. 前言
前段时间使用 Docker 部署了 SpringBoot 以及一些关联应用，不过都是单独部署的各个容器；如果项目需要部署到多套环境中，则每套环境中都需要重复性的启用容器并关联容器，这样的部署方式就显得很繁琐；于是在这种情况下，就可以使用到 Docker 三剑客之 Docker-Compose。
2. 用处
Docker-compose 实则就是把所有容器描述、端口映射、配置映射以及依赖关系等系列配置写在了一个配置文件中，也就好似一个批处理脚本，极大的提升了部署的速度。
3. 安装
3.1 安装 docker
3.2 安装 python-pip
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查看 pip 版本
---
[root@cdy ~]# pip -V
-bash: /usr/bin/pip: No such file or directory
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安装软件包
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[root@cdy ~]# yum -y install epel-release
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
Resolving Dependencies
--> Running transaction check
---> Package epel-release.noarch 0:7-11 will be installed
--> Finished Dependency Resolution
... 省略部分 ...
Verifying : epel-release-7-11.noarch 1/1
Installed:
epel-release.noarch 0:7-11
Complete!
---
安装 pip
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[root@cdy ~]# yum install python-pip
Loaded plugins: fastestmirror
Loading mirror speeds from cached hostfile
Resolving Dependencies
--> Running transaction check
---> Package python2-pip.noarch 0:8.1.2-5.el7 will be updated
---> Package python2-pip.noarch 0:8.1.2-10.el7 will be an update
--> Finished Dependency Resolution
... 省略部分 ...
Updated:
python2-pip.noarch 0:8.1.2-10.el7
Complete!
---
升级 pip
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[root@cdy ~]# pip install --upgrade pip
Collecting pip
Downloading http://mirrors.aliyun.com/pypi/packages/30/db/9e38760b32e3e7f40cce46dd5fb107b8c73840df38f0046d8e6514e675a1/pip-19.2.3-py2.py3-none-any.whl (1.4MB)
100% |████████████████████████████████| 1.4MB 76.6MB/s
Installing collected packages: pip
Found existing installation: pip 8.1.2
Uninstalling pip-8.1.2:
Successfully uninstalled pip-8.1.2
Successfully installed pip-19.2.3
---
再次查看 pip 版本
---
[root@cdy ~]# pip -V
pip 19.2.3 from /usr/lib/python2.7/site-packages/pip (python 2.7)
--------- 2020.5.2 更新 ---------
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上面的操作都是在阿里云服务器中完成的，而最近在本地虚拟机中安装的时候出现了超时的问题，下面来设置一下阿里云的安装源
---
---
在用户主目录下创建 .pip 目录
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[root@cdy ~]# mkdir ~/.pip && cd ~/.pip/
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再新建并编辑 pip.conf 配置文件
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[root@cdy .pip]# vim pip.conf
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粘贴如下配置信息来设置阿里云的安装源
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[global]
index-url=http://mirrors.aliyun.com/pypi/simple/
[install]
trusted-host=mirrors.aliyun.com
---
轮流输入命令 esc -> shift + 冒号 -> wq -> 回车，保存退出。最后再次升级 pip
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3.3 安装 docker-compose
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安装 docker-compose
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[root@cdy ~]# pip install docker-compose==1.24.1
Looking in indexes: http://mirrors.aliyun.com/pypi/simple/
Collecting docker-compose
... 省略部分 ...
Successfully installed asn1crypto-0.24.0 backports.ssl-match-hostname-3.7.0.1 bcrypt-3.1.7 cached-property-1.5.1 cffi-1.12.3 cryptography-2.7 docker-3.7.3 docker-compose-1.24.1 docker-pycreds-0.4.0 dockerpty-0.4.1 docopt-0.6.2 enum34-1.1.6 functools32-3.2.3.post2 ipaddress-1.0.22 jsonschema-2.6.0 paramiko-2.6.0 pycparser-2.19 pynacl-1.3.0 six-1.12.0 texttable-0.9.1 websocket-client-0.56.0
---
查看 docker-compose 版本
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[root@cdy ~]# docker-compose --version
/usr/lib/python2.7/site-packages/requests/__init__.py:80: RequestsDependencyWarning: urllib3 (1.22) or chardet (2.2.1) doesn't match a supported version!
RequestsDependencyWarning)
docker-compose version 1.24.1, build 4667896
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最后看起来有一些版本不兼容问题，接下来卸载不兼容模块，重新安装
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[root@cdy /]# pip uninstall urllib3
Uninstalling urllib3-1.22:
/usr/lib/python2.7/site-packages/urllib3-1.22.dist-info/DESCRIPTION.rst
/usr/lib/python2.7/site-packages/urllib3-1.22.dist-info/INSTALLER
/usr/lib/python2.7/site-packages/urllib3-1.22.dist-info/METADATA
/usr/lib/python2.7/site-packages/urllib3-1.22.dist-info/RECORD
/usr/lib/python2.7/site-packages/urllib3-1.22.dist-info/WHEEL
/usr/lib/python2.7/site-packages/urllib3-1.22.dist-info/metadata.json
/usr/lib/python2.7/site-packages/urllib3-1.22.dist-info/top_level.txt
... 省略部分 ...
Proceed (y/n)? y
Successfully uninstalled urllib3-1.22
[root@cdy /]# pip uninstall chardet
Uninstalling chardet-3.0.4:
/usr/bin/chardetect
/usr/lib/python2.7/site-packages/chardet-3.0.4.dist-info/DESCRIPTION.rst
/usr/lib/python2.7/site-packages/chardet-3.0.4.dist-info/INSTALLER
/usr/lib/python2.7/site-packages/chardet-3.0.4.dist-info/METADATA
/usr/lib/python2.7/site-packages/chardet-3.0.4.dist-info/RECORD
/usr/lib/python2.7/site-packages/chardet-3.0.4.dist-info/WHEEL
/usr/lib/python2.7/site-packages/chardet-3.0.4.dist-info/entry_points.txt
/usr/lib/python2.7/site-packages/chardet-3.0.4.dist-info/metadata.json
/usr/lib/python2.7/site-packages/chardet-3.0.4.dist-info/top_level.txt
... 省略部分 ...
Proceed (y/n)? y
Successfully uninstalled chardet-3.0.4
[root@cdy /]# pip install requests
Requirement already satisfied: requests in /usr/lib/python2.7/site-packages
Collecting chardet<3.1.0,>=3.0.2 (from requests)
Downloading http://mirrors.aliyun.com/pypi/packages/bc/a9/01ffebfb562e4274b6487b4bb1ddec7ca55ec7510b22e4c51f14098443b8/chardet-3.0.4-py2.py3-none-any.whl (133kB)
100% |████████████████████████████████| 143kB 68.3MB/s
Requirement already satisfied: certifi>=2017.4.17 in /usr/lib/python2.7/site-packages (from requests)
Collecting urllib3<1.23,>=1.21.1 (from requests)
Downloading http://mirrors.aliyun.com/pypi/packages/63/cb/6965947c13a94236f6d4b8223e21beb4d576dc72e8130bd7880f600839b8/urllib3-1.22-py2.py3-none-any.whl (132kB)
100% |████████████████████████████████| 133kB 62.6MB/s
Requirement already satisfied: idna<2.7,>=2.5 in /usr/lib/python2.7/site-packages (from requests)
Installing collected packages: chardet, urllib3
Found existing installation: chardet 2.2.1
Uninstalling chardet-2.2.1:
Successfully uninstalled chardet-2.2.1
Successfully installed chardet-3.0.4 urllib3-1.22
---
再次查看 docker-compose 版本
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[root@cdy /]# docker-compose --version
docker-compose version 1.24.1, build 4667896
4. 常用命令
- 查看版本信息：docker-compose --version
以下命令需要在有 docker-compose.yaml 文件的目录下执行；在写法上与 docker 命令类似
- 启动：docker-compose up -d
- 停止：docker-compose stop
- 停止并删除：docker-compose down
- 查看构建的镜像：docker-compose images
- 查看运行的容器：docker-compose ps -a
5. 扩展
希望能够帮助到你
over