In this, we will make a jenkins terraform ansible pipeline.

Prerequisites

Before starting the project, you should have these things in your system :-

• Account on AWS

• Code

STEP 1 : Launch Instance

Connect to instance through ssh :-

Now create a S3 bucket :-

• Bucket created :-

  

Part 2 : Setup Jenkins

• Now to install Jenkins, first we need Java install because Jenkins need Java so for to install Java use command :-

sudo apt upgrade && sudo apt upgrade -y
sudo apt install fontconfig openjdk-17-jre

• To check Java version use command :-

java --version

• After installing Java, we will install Jenkins so for to install Jenkins use command :-

sudo wget -O /usr/share/keyrings/jenkins-keyring.asc \
https://pkg.jenkins.io/debian-stable/jenkins.io-2023.key
echo deb [signed-by=/usr/share/keyrings/jenkins-keyring.asc] \
https://pkg.jenkins.io/debian-stable binary/ | sudo tee \
/etc/apt/sources.list.d/jenkins.list > /dev/null
sudo apt-get update
sudo apt-get install jenkins
sudo systemctl start jenkins
sudo systemctl enable jenkins

• To check Jenkins status, use command :-

sudo service jenkins status

• Now copy Public IPv4 address:8080 and we will be on Unlock Jenkins page. To unlock jenkins, use command :-

sudo cat /var/lib/jenkins/secrets/initialAdminPassword

• And we will get our password. Copy and paste it to unlock Jenkins → Now click Install suggested plugins → Fill details → Welcome to Jenkins

Part 2 : Terraform

• To install terraform use command :-

sudo apt update && sudo apt install -y gnupg software-properties-common
wget -O- https://apt.releases.hashicorp.com/gpg | \
        gpg --dearmor | \
        sudo tee /usr/share/keyrings/hashicorp-archive-keyring.gpg > /dev/null
        gpg --no-default-keyring \
        --keyring /usr/share/keyrings/hashicorp-archive-keyring.gpg \
        --fingerprint
echo "deb [signed-by=/usr/share/keyrings/hashicorp-archive-keyring.gpg] \
        https://apt.releases.hashicorp.com $(lsb_release -cs) main" | \
        sudo tee /etc/apt/sources.list.d/hashicorp.list
sudo apt update && sudo apt -y install terraform
terraform --version

Part 3 : Ansible

• To install ansible use command :-

sudo apt update
sudo apt -y install software-properties-common
sudo add-apt-repository --yes --update ppa:ansible/ansible
sudo apt -y install ansible
ansible --version

• Now make sure you have installed python3 & boto3 :-

python3 --version
pip show boto3

• Now create a file named aws_ec2.yaml in the /opt directory :-

sudo vi /opt/aws_ec2.yaml

You can change the inventory location as per your requirement but you have to specify your inventory location in ansible configuration file

Now write the following configuration in aws_ec2.yaml file :-

---
plugin: aws_ec2

regions:
 -us-east-2
filters:

    tag:Environment: dev

Note: You can change the tags as per the requirement.

• Create a role with admin access policy and attach it to the server.

Note: if you don’t want to Create role then you can put access and secret keys in the aws_ec2.yaml but it is not a good practice.

• Now to enable EC2 plugin, open /etc/ansible/ansible.cfg file :-

sudo vi /etc/ansible/ansible.cfg

• Find the [default] section and add the following line to inventory :-

    inventory = /opt/aws_ec2.yaml
    private_key_file = /etc/ansible/Akshay_key.pem
    host_key_checking = False
  

  Find the [inventory] section and add the following line to enable the ec2 plugin.

•       enable_plugins = aws_ec2
  

  Now open /etc/ansible/hosts file :-

    Now open /etc/ansible/hosts file :-
  

  Now open /etc/ansible/hosts file :-

And add the following line as given below :-

Also copy key file from local system to /etc/ansible through scp.

• Now install AWS CLI v2 (run these commands in home directory) :

curl "https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip" -o "awscliv2.zip"
sudo apt install unzip
unzip awscliv2.zip
sudo ./aws/install -i /usr/local/aws-cli -b /usr/local/bin --update

• Now we have to configure AWS CLI, for this we need IAM user. So to make IAM user, Go To IAM → Create user → Username → Next → Attach policies directly → select AdministratorAccess → Next → Create User. Now we will make security credentials. Why? Because our AWS CLI can do identify my account. Now go to User → Security Credentials → Create access key → select CLI → Next → Create access key. So we will get Access key and Secret access key. Now go to instance and write command given below :-

    aws configure
  

  Now paste Access key and Secret access key

• Now it’s time to test our dynamic inventory. Run the below ad hoc command to test our dynamic inventory :-

    ansible-inventory -i /opt/aws_ec2.yaml --list
  

• Change permission 744 of aws_ec2.yaml file and ansible.cfg file. Also change permission 644 of key file.

Now build a pipeline click on Create a job → give name "Terraform-Ansible-Project" → select "Freestyle project" → click OK.

• Now add choice & string parameters :-

  

• Now select git in Source Code management :-

  

  Now click Apply and Save → Build with Parameters and our pipeline will build successfully.

• In this we created 2 instances through terraform and deploy simple website through ansible.

Our Terraform-Ansible Project Completed 😄.

🌟I've put a lot of effort please take a look at the project on GitHub and let me know what you think! Your feedback means a lot. Do Repost on Linkedin to share this valuable Project to your Connections.🌟

GitHub Repository :https://github.com/akshayshinde3/Terraform-Ansible-Project.git

linkdin: https://www.linkedin.com/in/akshay-shinde99/

Happy IAC !!!!

Happy Reading !!!!

Akshay Shinde