ansible使用4-Playbook Roles and Include Statements

ansible使用4-Playbook Roles and Include Statements

task include

--- # possibly saved as tasks/foo.yml - name: placeholder foo command: /bin/foo - name: placeholder bar command: /bin/bar tasks: - include: tasks/foo.yml

变量传递

tasks: - include: wordpress.yml wp_user=timmy - include: wordpress.yml wp_user=alice - include: wordpress.yml wp_user=bob # 1.4版本以上，可以传递列表与字典 tasks: - { include: wordpress.yml, wp_user: timmy, ssh_keys: [ 'keys/one.txt', 'keys/two.txt' ] } tasks: - { include: wordpress.yml, wp_user: timmy, ssh_keys: [ 'keys/one.txt', 'keys/two.txt' ] } # include文件使用{{ }}引用变量 {{ wp_user }} # 其他方式 tasks: - include: wordpress.yml vars: wp_user: timmy some_list_variable: - alpha - beta - gamma

handlers include

--- # this might be in a file like handlers/handlers.yml - name: restart apache service: name=apache state=restarted handlers: - include: handlers/handlers.yml

import文件

- name: this is a play at the top level of a file hosts: all remote_user: root tasks: - name: say hi tags: foo shell: echo "hi..." - include: load_balancers.yml - include: webservers.yml - include: dbservers.yml

角色

playbooks目录结构

site.yml webservers.yml fooservers.yml roles/ common/ files/ templates/ tasks/ handlers/ vars/ defaults/ meta/ webservers/ files/ templates/ tasks/ handlers/ vars/ defaults/ meta/

playbook中定义

--- - hosts: webservers roles: - common - webservers

使用变量

--- - hosts: webservers roles: - common - { role: foo_app_instance, dir: '/opt/a', port: 5000 } - { role: foo_app_instance, dir: '/opt/b', port: 5001 }

使用表达式

--- - hosts: webservers roles: - { role: some_role, when: "ansible_os_family == 'RedHat'" }

assign tags

--- - hosts: webservers roles: - { role: foo, tags: ["bar", "baz"] } --- - hosts: webservers pre_tasks: - shell: echo 'hello' roles: - { role: some_role } tasks: - shell: echo 'still busy' post_tasks: - shell: echo 'goodbye'

role默认变量

在defaults/main.yml中添加

role依赖

role依赖存储在meta/main.yml文件

--- dependencies: - { role: common, some_parameter: 3 } - { role: apache, port: 80 } - { role: postgres, dbname: blarg, other_parameter: 12 } # 全路径 --- dependencies: - { role: '/path/to/common/roles/foo', x: 1 } # 使用版本控制 --- dependencies: - { role: 'git+http://git.example.com/repos/role-foo,v1.1,foo' } - { role: '/path/to/tar/file.tgz,,friendly-name' }

allow_duplicates: yes

--- dependencies: - { role: wheel, n: 1 } - { role: wheel, n: 2 } - { role: wheel, n: 3 } - { role: wheel, n: 4 } # meta/main.yml内容 --- allow_duplicates: yes dependencies: - { role: tire } - { role: brake } # result tire(n=1) brake(n=1) wheel(n=1) tire(n=2) brake(n=2) wheel(n=2) ... car posted on 2015-01-04 10:13 北京涛子 阅读( ...) 评论( ...) 编辑 收藏

转载于:https://www.cnblogs.com/liujitao79/p/4200457.html