Module 20: How to use Ansible to Provision EC2 on AWS

 

Ansible Playbook for provisioning a new EC2 instance in AWS - Create a new EC2 Using Ansible Playbook

Please find the Ansible Playbook for provisioning a new EC2 instance. Please follow the below steps in the machine where you installed Ansible.

Steps to create EC2 instance using Ansible:

1. Login to AWS console, click on username and go to My security credentials.
2. Continue on security credentials, click on access keys
3. Create a new access key if you dont have one. Make sure you download the keys.
4. Login to EC2 instance using Git bash or ITerm where you installed Ansible.

execute the below command

sudo vi ~/.boto

add below three lines in the above file, replace the ?? with access key and secret key values.

[Credentials]

aws_access_key_id = ??

aws_secret_access_key = ??

5. Edit Ansible hosts or inventory file
sudo vi /etc/ansible/hosts 
Add the below two lines in the end of the file:
[localhost]
local

6. cd ~
7. mkdir playbooks  

8. cd playbooks

Create Ansible playbook

9. sudo vi create_jenkins_ec2.yml 
(copy the below content in green color)

edit the create_jenkins_ec2.yml to make sure you update the key which is red marked below:

---

 - name:  provisioning EC2 Lab Exercises using Ansible

   hosts: localhost

   connection: local

   gather_facts: False

   tags: provisioning

   vars:

     keypair: MyEC2Key

     instance_type: t2.small

     image: ami-07c1207a9d40bc3bd

     wait: yes

     group: webserver

     count: 1

     region: us-east-2

     security_group: my-jenkins-security-grp

   

   tasks:

     - name: Create my security group

       local_action: 

         module: ec2_group

         name: "{{ security_group }}"

         description: Security Group for webserver Servers

         region: "{{ region }}"

         rules:

            - proto: tcp

              from_port: 22

              to_port: 22

              cidr_ip: 0.0.0.0/0

            - proto: tcp

              from_port: 8080

              to_port: 8080

              cidr_ip: 0.0.0.0/0

            - proto: tcp

              from_port: 80

              to_port: 80

              cidr_ip: 0.0.0.0/0

         rules_egress:

            - proto: all

              cidr_ip: 0.0.0.0/0

       register: basic_firewall

     - name: Launch the new EC2 Instance

       local_action:  ec2 

                      group={{ security_group }} 

                      instance_type={{ instance_type}} 

                      image={{ image }} 

                      wait=true 

                      region={{ region }} 

                      keypair={{ keypair }}

                      count={{count}}

       register: ec2

     - name: Add Tagging to EC2 instance

       local_action: ec2_tag resource={{ item.id }} region={{ region }} state=present

       with_items: "{{ ec2.instances }}"

       args:

         tags:

           Name: MyTargetEc2Instance

10. now execute the ansible playbook by
sudo ansible-playbook create_jenkins_ec2.yml

Fix the warnings by executing below command

pip install --upgrade requests==2.20.1

If everything is good, you should see the new instance created on AWS console. make sure you are able to connect to that instance.

That's it!! That is how you create a new EC2 instance using Ansible.