Ansible : Playbook を利用する (Roles)2024/09/11 |
Ansible の Roles 機能の利用例です。 [playbook.yml], [role01] は任意の名前で OK ですが、それ以外は固定となります。 当例では、以下のような構成 (右図) の Roles 適用 Playbook を作成します。 +--- playbook.yml +--- playbook_sample.yml | | +--- roles/ +--- roles/ | | +--- role01/ +--- ins_mariadb/ | | | +--- files/ | +--- vars/ | | | | +--- templates/ | | +--- main.yml | | +--- tasks/ +--- tasks/ | | | | +--- main.yml +--- handlers/ | | +--- ins_nginx/ +--- vars/ | | +--- files/ +--- defaults/ | | | | +--- index.html +--- meta/ +--- vars/ | | | +--- main.yml | +--- tasks/ | +--- main.yml |
[1] | Nginx と MariaDB をインストールして起動する Roles 適用 Playbook です。 |
freebsd@dlp:~ $ mkdir -p roles/ins_mariadb/tasks freebsd@dlp:~ $ mkdir -p roles/ins_mariadb/vars freebsd@dlp:~ $ mkdir -p roles/ins_nginx/files freebsd@dlp:~ $ mkdir -p roles/ins_nginx/tasks freebsd@dlp:~ $ mkdir -p roles/ins_nginx/vars
freebsd@dlp:~ $
vi playbook_sample.yml - hosts: target_servers become: yes become_method: sudo roles: - ins_mariadb - ins_nginx
freebsd@dlp:~ $
vi roles/ins_mariadb/vars/main.yml mariadb_package: - mariadb1011-server - py311-pymysql
freebsd@dlp:~ $
vi roles/ins_mariadb/tasks/main.yml - name: mariadb is installed pkgng: name: "{{ mariadb_package }}" state: present tags: install_mariadb - name: mariadb is running and enabled service: name: mysql-server state: started enabled: yes
freebsd@dlp:~ $
vi roles/ins_nginx/vars/main.yml nginx_package: - nginx
freebsd@dlp:~ $
vi roles/ins_nginx/tasks/main.yml - name: nginx is installed pkgng: name: "{{ nginx_package }}" state: present tags: install_nginx - name: edit nginx.default lineinfile: path: /usr/local/etc/nginx/nginx.conf regexp: "^ *server_name localhost;" line: "server_name {{ ansible_fqdn }};" tags: edit_nginx.default - name: nginx is running and enabled service: name: nginx state: started enabled: yes - name: put index.html copy: src: index.html dest: /usr/local/www/nginx owner: root group: wheel mode: 0644 - name: check nginx uri: url: http://{{ ansible_fqdn }}
freebsd@dlp:~ $
freebsd@dlp:~ $ echo "nginx index page" > roles/ins_nginx/files/index.html ansible-playbook playbook_sample.yml --ask-become-pass BECOME password: PLAY [target_servers] **************************************************************** TASK [Gathering Facts] *************************************************************** ok: [10.0.0.51] ok: [10.0.0.52] TASK [ins_mariadb : mariadb is installed] ******************************************** ok: [10.0.0.52] ok: [10.0.0.51] TASK [ins_mariadb : mariadb is running and enabled] ********************************** ok: [10.0.0.52] ok: [10.0.0.51] TASK [ins_nginx : nginx is installed] ************************************************ ok: [10.0.0.51] ok: [10.0.0.52] TASK [ins_nginx : edit nginx.default] ************************************************ changed: [10.0.0.52] changed: [10.0.0.51] TASK [ins_nginx : nginx is running and enabled] ************************************** ok: [10.0.0.51] ok: [10.0.0.52] TASK [ins_nginx : put index.html] **************************************************** ok: [10.0.0.52] ok: [10.0.0.51] TASK [ins_nginx : check nginx] ******************************************************* ok: [10.0.0.52] ok: [10.0.0.51] PLAY RECAP *************************************************************************** 10.0.0.51 : ok=8 changed=4 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0 10.0.0.52 : ok=8 changed=4 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0 |
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