Ansible 书写我的playbook

mysql 创建数据库

- hosts: localhost
  remote_user: root
  tasks:

  - name: test mysql
    mysql_db:
      name: mhc
      state: present
      login_user: root
      login_password: root.123
    register: mhc

  - debug: var=mhc

--------------------------------------------------------

修改docker容器内的mysql 配置文件 /etc/my.cnf

执行： ansible-playbook config.yml -e "key=tmp_table_size" -e "value=99m"

- hosts: localhost
  remote_user: root
  tasks:
 
  - name: add container to inventory
    add_host:
      name: compose_mysql_1
      ansible_connection: docker
      ansible_user: root
    changed_when: false

  - name: get remote my.cnf
    delegate_to: compose_mysql_1
    shell: cat /etc/my.cnf
    register: mhc

  - name: write local my.cnf
    shell: echo  "{{ mhc.stdout }}" > /tmp/my.cnf

  - name: update my.cnf
    shell: ansible-handler update_mysql_configs '{"action":"update","path":"/tmp/my.cnf","configs":{"mysqld":{"{{ key }}":"{{ value }}"}}}'

  - name: send new my.cnf
    delegate_to: compose_mysql_1
    template: src=/tmp/my.cnf dest=/etc/my.cnf owner=root group=root mode=0644
    notify: restart container

  - name: delete tmp my.cnf
    file: path=/tmp/my.cnf state=absent

  handlers:
    - name: restart container
      debug: msg="hahahahahahahahahha"
--------------------------------------------------------------------------------

---
- hosts: localhost

  tasks:

  - name: include vars
    include_vars: var.yml

  - name: add container to inventory
    add_host:
      name: hehe_mysql_1
      ansible_connection: docker
      ansible_user: root
    changed_when: false

  - name: get or modify cnf file
    delegate_to: hehe_mysql_1
    cnf_file:
      action: "{{ action }}"
      section: "{{ section }}"
      option: "{{ option }}"
      value: "{{ value }}"
      path: "{{ path }}"
    register: sh

  - debug: var=sh
    when: sh.stdout is defined


var.yml:

---
action: get
section:
option:
value:
path: /etc/my.cnf
-------------------------------------------------------------

---
- hosts: localhost

  tasks:

  - name: include vars
    include_vars: var.yml

  - name: add container to inventory
    add_host:
      name: hehe_mysql_1
      ansible_connection: docker
      ansible_user: root
    changed_when: false

  - name: get or modify cnf file
    delegate_to: hehe_mysql_1
    cnf_file:
      action: update
      section: "{{ item.section }}"
      option: "{{ item.option }}"
      value: "{{ item.value }}"
      path: "{{ path }}"
    with_items:
      - { section: 'mysqld', option: 'tmp_table_size', value: '133m'}
      - { section: 'mysqld', option: 'aa', value: 'bb'}
      - { section: 'mysqld', option: 'aa2', value: 'bb2'}
    register: sh

  - debug: var=sh
    when: sh.stdout is defined

 ----------------------------------------------------------------------------------------
cnf_file.yml:

---
- name: get or modify cnf file in docker container
  delegate_to: "{{ container_name }}"
  cnf_file:
    action: "{{ action }}"
    section: "{{ section }}"
    option: "{{ option }}"
    value: "{{ value }}"
    path: "{{ path }}"
  when: container_name is defined
  register: sh

- name: get or modify cnf file
  cnf_file:
    action: "{{ action }}"
    section: "{{ section }}"
    option: "{{ option }}"
    value: "{{ value }}"
    path: "{{ path }}"
  when: container_name is undefined
  register: sh2


add_host.yml:

---
- name: add container to inventory
  add_host:
    name: "{{ container_name }}"
    ansible_connection: docker
    ansible_user: root
  changed_when: false


main.yml

---
- hosts: localhost

  tasks:

    - import_tasks: add_host.yml
      vars:
        container_name: hehe_mysql_1

    - import_tasks: cnf_file.yml
      vars:
        container_name: hehe_mysql_1
        action: get
        section:
        option:
        value:
        path: /etc/my.cnf

    - debug: var=sh

main2.yml

---
- hosts: localhost

  tasks:

    - import_tasks: add_host.yml
      vars:
        container_name: hehe_mysql_1

    - include_tasks: cnf_file.yml
      vars:
        container_name: hehe_mysql_1
        action: delete
        section: "{{ item.section }}"
        option: "{{ item.option }}"
        value:
        path: /etc/my.cnf
      with_items:
        - { section: 'mysqld', option: 'aa'}
        - { section: 'mysqld', option: 'aa2'}

    - debug: var=sh