This scenario shows:
- how to create host variables
- You should have a look following lab, nodes that are created in that LAB, are using in ansible commands
- Create 'host_vars' directory
mkdir host_vars
-
If the nodes in the inventory are defined with IPs, create file with 'IP.yml' (if they are defined with domain name, files are 'domain_name.yml')
-
Add following variable into the file:
apache_package_name: apache2
apache_service: apache2
php_package_name: libapache2-mod-php
- We have host.yml files and host_vars in the yml file
- Update 'roles/web_servers/tasks/main.yml' by adding variables (with quotation mark ") that are defined in files in host_vars directory.
- For each node, defined host variables are used for variables.
- name: install apache and php
tags: ubuntu,apache,apache2
apt:
name:
- "{{ apache_package_name }}"
- "{{ php_package_name }}"
state: latest
- name: start apache
tags: ubuntu,apache,apache2
service:
name: "{{ apache_service }}"
state: started
enabled: yes
- name: change email address for admin (Ubuntu)
tags: ubuntu,apache,apache2
lineinfile:
path: /etc/apache2/sites-available/000-default.conf
regexp: 'ServerAdmin webmaster@localhost'
line: ' ServerAdmin [email protected]'
when: ansible_distribution == "Ubuntu"
register: apache2_service
- name: restart apache (Ubuntu)
tags: ubuntu,apache,apache2
service:
name: "{{ apache_service }}"
state: restarted
when: apache2_service.changed
- name: copy default (index) html file for site
tags: apache,apache2,httpd
copy:
src: default_site.html
dest: /var/www/html/index.html
owner: root
group: root
mode: 0644
- name: install unzip
package:
name: unzip
- name: install terraform
unarchive:
src: https://releases.hashicorp.com/terraform/1.3.4/terraform_1.3.4_linux_amd64.zip
dest: /usr/local/bin
remote_src: yes
owner: root
group: root
mode: 0755
Run:
ansible-playbook site.yml
