Ansible For Everyone (Ansible Playbooks) - Part 3

DAY 34- Ansible For Everyone (Ansible Playbooks) - Part 3 - Day Thirty four

100 days of Cloud on GitHub - Read On iCTPro.co.nz - Read on Dev.to

🧮 Prerequisite

Please refer to Ansible Part 1 and Part 2 for a detailed understanding.

Ansible For Everyone - Part 1

Anuvindh for AWS Community Builders ・ May 21 '22

#devops #webdev #productivity #opensource

Ansible For Everyone(Practical) - Part 2

Anuvindh for AWS Community Builders ・ Jun 10 '22

#devops #webdev #productivity #opensource

🛠️ Adding Ansible inventory

Lets add our cluster of servers to Ansible infrastucture
In this demo i will be only using AnsibleSlaves-YourProdServer as my prod server.

Goto your Ansible-Control-Center and update ansible hosts file

sudo nano /etc/ansible/hosts

• In this file you will find templetes to add hosts
• lets add our production group of servers
  • Add [YourgGroupName]
  • next line , give a name to server which you are going to add. Lets name app1 then ansible_ssh_host= your ip address of your slave.

[production]
app1 ansible_ssh_host= ipaddress of your slave

Let's test the connections

• To test all connections

ansible -m ping all

• To test all connections in a group

ansible -m ping production

• To test connection of a server named app1 in a group

ansible -m ping app1

Below image shows the result of the ping

✨ Modules

• Modules are the commands which help to perform task,in other words modules are kind of library that help to perform tasks.
• List of all modules - link

What are Tasks?
A set of instructions performed with modules.

▶️ Ansible Playbooks

Playbooks are written in YAML also Playbooks are lists of tasks that automatically execute against hosts.

Lets create an nginx playbook
ansible modules - https://docs.ansible.com/ansible/2.9/modules/list_of_all_modules.html

• lets create a YAML file

sudo nano nginxplaybook.yaml

• yaml scriping start with three dashes ---
• then you can give a name with start a single dash -
• now we will update the next parameter which is our hosts, in this case it will be production if you wanna do for all servers use all
• so if we need to run as root on targets, we will be setting become parameter to true.
• define task now under task
  • we will be using a apt module to install nginx. Refernce link
  • We have given aname to the task as install nginx.Then will be using apt module as we are using ubuntu.
  • name of the module and state, refer the link for detailed understanding.

---
- name: install nginx server
  hosts: production
  become: yes
  tasks:
  - name: install nginx
    apt:
      name: nginx
      state: latest

Now lets run the playbook

• Before running the playbook lets check it. ansible-playbook nginxplaybook.yaml --check
• Now lets run the play book

ansible-playbook nginxplaybook.yaml

Deploy code from git

• Here we will deploy a website to the target server using Ansible.

---
- name: install nginx server
  hosts: production
  become: yes
  tasks:
  - name: install nginx
    apt:
      name: nginx
      state: latest
  - name: Clone a repo with separate git directory
    ansible.builtin.git:
      repo: https://github.com/anuvindhs/CLOUD-is-AWSome.git
      dest: /var/www/html/app1

• Lets run the play book

ansible-playbook nginxplaybook.yaml

• Now go to your http://yourslaveip/app1 to see the magic

🎉🎉🎉🎉Congratulations on you first ansible infrastucture deployment with aws using playbook🎉🎉🎉🎉.

I highly recommend this Tips & Tricks with Examples from spacelift
, this is def comes handy when you are writing complex ansible scripts.

Ansible Playbooks: Complete Guide with Examples

What are Ansible playbooks? Learn how to structure, write, and run a playbook. See the practical examples.

spacelift.io

Ansible documentation links
Ansible Modules link

Ansible For Everyone - Part 1

Anuvindh for AWS Community Builders ・ May 21 '22

#devops #webdev #productivity #opensource

Ansible For Everyone(Practical) - Part 2

Anuvindh for AWS Community Builders ・ Jun 10 '22

#devops #webdev #productivity #opensource

✅Connect with me on Twitter
🤝🏽Connect with me on Linkedin
🧑🏼‍🤝‍🧑🏻 Read more post on dev.to or iCTPro.co.nz
💻 Connect with me on GitHub

AnuvindhFollow

Experienced Cloud Technology Specialist with a demonstrated skillset of working with Banking , Medical Service , NZ Police & Education industry