ansible-demo

Ansible Demo

truncate -s 0 access.log ansible --version ansible all -m ping

1. Controller Machine: Machine where Ansible is installed
2. Inventory: Information regarding servers to be managed
3. Playbook: Automation is defined using tasks defined in YAML format
4. Task: Procedure to be executed
5. Module: Predefined commands executed directly on remote hosts
6. Play: Execution of a playbook
7. Role: a Pre-defined way for organizing playbooks Handlers: Tasks with unique names that will only be executed if notified by another task

Step : 1

yum install ansible

Step :2

ansible --version

Step : 3

Open below file /etc/ansible/ansible.cfg and update content as below

---

Defaualt Path : config file = /etc/ansible/ansible.cfg

[defaults] host_key_checking = false remote_user = ec2-user ask_pass = false private_key_file = /root/ansible/ec2key.pem roles_path = /root/ansible/roles

[privilege_escalation] become = true become_method = sudo become_user = root become_ask_pass = false

Location where ansible look for hosts

inventory = /etc/ansible/hosts

---

Step : 4 Update Host File

path : inventory = /etc/ansible/hosts [webapp] 172.12.21.22

Step : 5 Validate Connectivity

ansible all -m ping

Step :6 Create Sample playbook for httpd and run it using below command

ansible-playbook httpdstart.yml

Step 7 : Validate Changes on managed nodes