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![$ ansible-playbook -i hosts site.yml
# This playbook deploys the whole application stack in this site.
- name: apply common configuration to all nodes
hosts: all
remote_user: root
roles:
- common
- name: configure and deploy the webservers
hosts: webservers
remote_user: root
roles:
- web
- name: deploy MySQL and configure the databases
hosts: dbservers
remote_user: root
roles:
- db
[webservers]
web3
[dbservers]
web2
❏ Tasks
❏ Handlers
❏ Templates](https://image.slidesharecdn.com/ansiblelt-171116152335/85/Ansible-to-provision-your-machines-10-320.jpg)
![# This playbook will install mysql and create db user and give permissions.
- name: Install Mysql package
yum: name={{ item }} state=installed
with_items:
- mysql-server
- MySQL-python
- libselinux-python
- libsemanage-python
- name: Configure SELinux to start mysql on any port
seboolean: name=mysql_connect_any state=true persistent=yes
when: sestatus.rc != 0
- name: Create Mysql configuration file
template: src=my.cnf.j2 dest=/etc/my.cnf
notify:
- restart mysql
- name: Start Mysql Service
service: name=mysqld state=started enabled=yes
# Handler to handle DB tier notifications
- name: restart mysql
service: name=mysqld state=restarted
[mysqld]
datadir=/var/lib/mysql
socket=/var/lib/mysql/mysql.sock
user=mysql
# Disabling symbolic-links
symbolic-links=0
port={{ mysql_port }}](https://image.slidesharecdn.com/ansiblelt-171116152335/85/Ansible-to-provision-your-machines-11-320.jpg)
Ansible to provision your machines
- 1.
- 2. × Software Developerat × Overwatch Player × Science Enthusiast × Center-forward Ronaldo’s Style Fellipe Callegas
- 3. What’re we goingto talk about ❏ What's Ansible? ❏ Structure ❏ How it works ❏ Case
- 4. What’s Ansible? ❏ Management/ Automation Tool ❏ Agentless ❏ Very simple ❏ 1000+ modules ❏ Extensible ❏ Idempotent It's a task automation tool similar to Puppet and Chef, but much more powerful and the darling of the DevOps staff today.
- 5. Structure ❏ Inventory ❏ Modules ❏Tasks ❏ Playbooks
- 9. × FILES × HANDLERS ×TASKS × TEMPLATES {{var}} × VARS
- 10. $ ansible-playbook -ihosts site.yml # This playbook deploys the whole application stack in this site. - name: apply common configuration to all nodes hosts: all remote_user: root roles: - common - name: configure and deploy the webservers hosts: webservers remote_user: root roles: - web - name: deploy MySQL and configure the databases hosts: dbservers remote_user: root roles: - db [webservers] web3 [dbservers] web2 ❏ Tasks ❏ Handlers ❏ Templates
- 11. # This playbookwill install mysql and create db user and give permissions. - name: Install Mysql package yum: name={{ item }} state=installed with_items: - mysql-server - MySQL-python - libselinux-python - libsemanage-python - name: Configure SELinux to start mysql on any port seboolean: name=mysql_connect_any state=true persistent=yes when: sestatus.rc != 0 - name: Create Mysql configuration file template: src=my.cnf.j2 dest=/etc/my.cnf notify: - restart mysql - name: Start Mysql Service service: name=mysqld state=started enabled=yes # Handler to handle DB tier notifications - name: restart mysql service: name=mysqld state=restarted [mysqld] datadir=/var/lib/mysql socket=/var/lib/mysql/mysql.sock user=mysql # Disabling symbolic-links symbolic-links=0 port={{ mysql_port }}
- 14. Thanks! Any questions? You canfind me at: Github: callegas Linkedin: Fellipe Callegas Blog: callegasdev.wordpress.com