Ansible : Use Playbook (Roles)2022/07/22 |
|
This is the example of using the [Roles] feature.
It's necessary to configure directory tree like follows to use Roles.To use Roles, it's possible to include other tasks or Playbooks without writing [include] sentence. The left image shows all tree, the right image shows an example of a Playbook on this example.
+--- 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] | This is the Playbook to use Roles that MariaDB and Nginx are installed and started. |
|
[cent@dlp ~]$ mkdir -p roles/ins_mariadb/{tasks,vars} [cent@dlp ~]$ mkdir -p roles/ins_nginx/{files,tasks,vars}
[cent@dlp ~]$
vi playbook_sample.yml
- hosts: target_servers
become: yes
become_method: sudo
roles:
- ins_mariadb
- ins_nginx
[cent@dlp ~]$
vi roles/ins_mariadb/vars/main.yml mariadb_package: - mariadb-server - python3-PyMySQL
[cent@dlp ~]$
vi roles/ins_mariadb/tasks/main.yml
- name: mariadb is installed
dnf:
name: "{{ mariadb_package }}"
state: present
tags: install_mariadb
- name: mariadb is running and enabled
service:
name: mariadb
state: started
enabled: yes
[cent@dlp ~]$
vi roles/ins_nginx/vars/main.yml nginx_package: - nginx
[cent@dlp ~]$
vi roles/ins_nginx/tasks/main.yml
- name: nginx is installed
dnf:
name: "{{ nginx_package }}"
state: installed
tags: install_nginx
- name: edit nginx.conf
lineinfile:
path: /etc/nginx/nginx.conf
regexp: "^ *server_name _;"
line: "server_name {{ ansible_fqdn }};"
tags: edit_nginx.conf
- name: nginx is running and enabled
service:
name: nginx
state: started
enabled: yes
- name: put index.html
copy:
src: index.html
dest: /usr/share/nginx/html
owner: root
group: root
mode: 0644
- name: check nginx
uri:
url: http://{{ ansible_fqdn }}
[cent@dlp ~]$
[cent@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: [10.0.0.52] ok: [10.0.0.51] 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: [10.0.0.52] ok: [10.0.0.51] TASK [ins_nginx : edit nginx.conf] ********************************************* ok: [10.0.0.52] ok: [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=0 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0 10.0.0.52 : ok=8 changed=0 unreachable=0 failed=0 skipped=0 rescued=0 ignored=0 |
| Sponsored Link |
|
|