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ansible文件内容替换+在远程主机上运行多个command

ansible在远程主机上进行文件内容替换可以使用lineinfile来实现,可以使用正则筛选到所需要的行,然后进行替换,本文进行了演示。

ansible在远程主机上运行多个command,标准写法为

  - name: install an apple
    command: "{{item}}"
    with_items:
     - tar -xvzf /tmp/apple.tar.gz creates=/tmp/apple
     - /tmp/apple/install.sh --default creates=/etc/apple
     - rm -rf /tmp/apple

实例
假设有一个process.ymal

- hosts: new
  user: admin
  vars:
     ps_env: "{{ ps_env }}"
  tasks:
   - name: push ~/.ssh/id_rsa/pub to remote .ssh/authorized_keys
     authorized_key: user=admin state=present key="{{ lookup('file', '/home/admin/.ssh/id_rsa.pub') }}"

   - name: push ump_agent_code to remote
     copy: src=/opt/zhukun/ump_agent/bin dest=/home/admin/zhukun owner=admin group=admin mode=644 backup=yes follow=yes

   - name: prepare the product/test enviroment of PS
     command: sed -i "s,stage,{{ ps_env }},g" /home/admin/zhukun/bin/config.json

   - name: prepare the product/test enviroment of PS
     lineinfile:
       dest: /home/admin/zhukun/bin/config.json
       regexp: '^.*[PRODUCT].*$'
       line: '"PRODUCT": "{{ ps_env }}"'

   - name: reboot the observer-agent service
     command: "{{ item }}"
     with_items:
      - ps -ef | grep /export/App/observer-agent.jd.local/bin | grep -v grep | awk '{ print $2}' | xargs kill
      - /export/App/observer-agent.jd.local/bin/start.sh

   - name: reboot the PS service
     command: ps -ef | grep /export/Packages/prediction_service/latest/prediction_service | grep -v grep | awk '{ print $2}' | xargs kill


说明:
第1个task是用来Push ssh公钥,第2个task是用来push文件到远程主机,关于详细使用请参考这篇文章
第3个task,调用远程command命令进行文件内容替换;
第4个task,使用ansible自带的lineinfile模块,进行文件内容替换。使用regexp筛选出包含PRODUCT的行,并将该行修改为”PRODUCT”: “{{ ps_env }}”,其中ps_env会被ansible-playbook命令传递的参数替换掉

ansible-playbook -i /opt/list process.ymal -e ps_env=rec_test -k

此时,lineinfile模块,会将包含PRODUCT的行,并将该行修改为”PRODUCT”: “=rec_test”。

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