ansible设置环境变量

通过~/.profile文件设置

env01.yaml

---
  - hosts: ubuntu
    tasks:
    # 设置环境变量
    - name: 设置环境变量
      lineinfile:
          dest: ~/.profile
          regexp: ^export ENV_KEY=
          line: export ENV_KEY=env_value

    - name: 获取环境变量值 #指定bash shell，默认是使用/bin/sh，/bin/sh无法执行source命令
      shell: bash -c 'source ~/.profile && echo $ENV_KEY'
      register: env_key

    - name: 打印环境变量，inventory_hostname 是当前主机在inventory清单文件中的名称，默认情况下会在playbook中显示出来，一般为ip，也可以自定义名称
      debug:
        msg: "this linux os {{ inventory_hostname }} env_key is {{ env_key.stdout }}"
    - name: 打印环境变量 #ansible_env 变量不包含lineinfile模块设置的变量，不知道为什么
      debug:
        msg: "{{ ansible_env }}"

通过playbooke文件硬编码设置

env02.yaml

---
  - hosts: ubuntu
    tasks:
    - name: 设置环境变量
      get_url:
        url: https://files.pythonhosted.org/packages/fa/de/02b54f42487e3d3c6efb3f89428677074ca7bf43aae402517bc7cca949f3/PyYAML-6.0.2-cp313-cp313-win_amd64.whl
        dest: /tmp
      environment:
        http_proxy: http://1.1.1.1:80/
        https_proxy: https://1.1.1.1:443/

通过playbooke文件变量设置

env02-1.yaml

---
  - hosts: ubuntu
    vars:
      #为一个下载任务设置http代理
      vars_proxy:
        http_proxy: "http://1.1.1.1:80/"
        https_proxy: "https://1.1.1.1:443/"
    tasks:
     - name: debug环境变量
       debug:
         var: vars_proxy
     - name: 设置环境变量
       get_url:
         url: https://files.pythonhosted.org/packages/fa/de/02b54f42487e3d3c6efb3f89428677074ca7bf43aae402517bc7cca949f3/PyYAML-6.0.2-cp313-cp313-win_amd64.whl
         dest: /tmp
       environment: "{{ vars_proxy }}"

通过proxy_state状态控制变量状态

env03.yaml

---
  - hosts: ubuntu
    vars:
      proxy_state: present
    tasks:
      - name: Configure the proxy.
        lineinfile:
          dest: /etc/environment
          regexp: "{{ item.regexp }}"
          line: "{{ item.line }}"
          state: "{{ proxy_state }}"
        with_items:
          - { regexp: "^http_proxy=", line: "http_proxy=http://1.1.1.1:80/" }
          - { regexp: "^https_proxy=", line: "https_proxy=https://1.1.1.1:443/" }
          - { regexp: "^ftp_proxy=", line: "ftp_proxy=http://1.1.1.1:80/" }

在/etc/environment文件里配置的变量,再次登录时,会加载到env变量中,可直接通过echo $http_proxy打印出来

ansible ubuntu -m shell -a 'echo $http_proxy '
107.151.199.209 | CHANGED | rc=0 >>
http://1.1.1.1:80/