ansible lineinfile 根据输入数组替换多个文件中包含默认端口的模式的行开始

Question

--- 
- 
  gather_facts: true
  hosts: abc,pqr,xyz
  name: "playbook"
  serial: 1
  tasks: 
    - 
      block: 
        - 
          shell: "ls /etc/maria/"       # could be n number of ports like 123, 456, 789
          register: ports
          
        - 
          lineinfile: 
            line: PORT={{ new_ports }}
            path: "/etc/instance_{{ item }}/mariadb.conf"
            regexp: '^PORT='
            with_items: "{{ ports.stdout_lines }}"
            new_ports:                          # length of this would be based on number of ports, should create an array based on array size of `ports` 
        - 8880
        - 8881
        - 8882

举例来说，我有一些来自 ls /etc/maria/
123
456
789 的 3 个端口
和3个对应的文件
/etc/instance_123/mariadb.conf,
/etc/instance_456/mariadb.conf、
/etc/instance_789/mariadb.conf。

可能是 n 个端口和文件。
我想将 /etc/instance_123/mariadb.conf 中以 ^PORT= 开头的行替换为 PORT=8880 等等，直到数组端口的长度。

使用建议代码获得的结果：

之前

/etc/instance_1234/mariadb.conf | grep port
port=1234

剧本

- hosts: abc
  gather_facts: false
  vars:
    ansible_python_interpreter: /usr/bin/python3
  serial: 1
  tasks:
    - shell: ls /etc/maria/
      register: ports

    - debug:
        msg: "{{ ports.stdout_lines|length }}"

    - lineinfile:
        path: "/etc/instance_{{ item }}/mariadb.conf"
        regexp: "^port=.*$"
        line: "port={{ new_ports[ansible_loop.index0] }}"
      loop: "{{ ports.stdout_lines }}"
      loop_control:
        extended: true
      vars:
        new_ports: "{{ range(8880, 8880 + ports.stdout_lines|length) }}"

之后

/etc/instance_1234/mariadb.conf | grep port
port=x

Answer 1

例如，给定文件

shell> ssh admin@test_11 ls /tmp/mongo
123
456

shell> ssh admin@test_12 ls /tmp/mongo
123
456
789

剧本

- hosts: test_11,test_12
  gather_facts: false
  serial: 1
  tasks:
    - command: ls /tmp/mongo
      register: ports
    - lineinfile:
        path: "/tmp/etc/instance_{{ item }}/mongodb.conf"
        regexp: "^PORT=.*$"
        line: "PORT={{ new_ports[ansible_loop.index0] }}"
        create: true
      loop: "{{ ports.stdout_lines }}"
      loop_control:
        extended: true
      vars:
        new_ports: "{{ range(8880, 8880 + ports.stdout_lines|length) }}"

创建或更新配置文件

shell> ssh admin@test_11 ls /tmp/etc/
instance_123
instance_456

shell> ssh admin@test_11 cat /tmp/etc/instance_123/mongodb.conf
PORT=8880

shell> ssh admin@test_11 cat /tmp/etc/instance_456/mongodb.conf
PORT=8881

shell> ssh admin@test_12 ls /tmp/etc/
instance_123
instance_456
instance_789

shell> ssh admin@test_12 cat /tmp/etc/instance_123/mongodb.conf
PORT=8880

shell> ssh admin@test_12 cat /tmp/etc/instance_456/mongodb.conf
PORT=8881

shell> ssh admin@test_12 cat /tmp/etc/instance_789/mongodb.conf
PORT=8882

ansible lineinfile 根据输入数组替换多个文件中包含默认端口的模式的行开始

ansible lineinfile replace a line begin containing a pattern with default ports in multiple files based on input array

ansible

使用建议代码获得的结果：

之前

剧本

之后