Ansible 常见使用场景

目录

• 目录
• 说明
• 操作 Docker
• 参考

说明

按需收集下常用的 ansible 操作。

操作 Docker

docker 安装脚本：（这里图省事，没有写成 ansible 任务）

sudo apt-get install \
    apt-transport-https \
    ca-certificates \
    curl \
    gnupg2 \
    software-properties-common

curl -fsSL https://mirrors.ustc.edu.cn/docker-ce/linux/debian/gpg | sudo apt-key add -

sudo add-apt-repository \
  "deb [arch=amd64] https://mirrors.ustc.edu.cn/docker-ce/linux/debian \
 $(lsb_release -cs) \
 stable"

sudo apt-get update
sudo apt-get install docker-ce docker-ce-cli containerd.io

推荐使用 python3，python2 可能会遇到下面的错误：

FAILED! => {“changed”: false, “msg”: “Failed to import the required Python library (Docker SDK for Python: docker (Python >= 2.7) or docker-py (Python 2.6)) on n129’s Python /usr/bin/python. Please read module documentation and install in the appropriate location. If the required library is installed, but Ansible is using the wrong Python interpreter, please consult the documentation on ansible_python_interpreter, for example via pip install docker or pip install docker-py (Python 2.6). The error was: cannot import name credentials”}

在目标机器上安装 pip3 以及 docker sdk：

- name: install pip3
  apt:        
    name: python3-pip
    state: present

- name: install docker sdk
  pip:
    name: docker

- name: docker is running
  systemd:
    name: docker
    state: started

到 All modules 查找 docker 相关的 module，每个 module 文档的末尾都给出里的大量示范：

docker 登录、删除容器、启动容器等：

- name: docker login
  docker_login:
    registry_url: xxx.com
    username: "XXXX"
    password: "XXX"
    reauthorize: true

- name: Delete demo container
  docker_container:
    name: demo
    state: absent
    force_kill: yes

- name: Start demo container
  docker_container:
    name: demo
    image: alpine
    state: started
    recreate: yes
    force_kill: yes

参考

1. 李佶澳的博客
2. All modules