Jenkins Infra using Terraform

This repo contains Infrastructure as code(Terraform) files to setup Jenkins on AWS.

Installation

Please follow the installation instructions required for setting up the project here.

Setup Terraform in repo

To set up Terraform within your repository, follow these steps:

1. Navigate to Repository: Open a terminal or command prompt and navigate to the root directory of the repository.

2. Initialize Terraform: Run terraform init to initialize Terraform within the repository. This command initializes various Terraform configurations and plugins required for your infrastructure.

    $ terraform init
    Initializing the backend...
   
    Initializing provider plugins...
    - Reusing previous version of hashicorp/aws from the dependency lock file
    - Installing hashicorp/aws v5.51.1...
    - Installed hashicorp/aws v5.51.1 (signed by HashiCorp)
    ...
    Terraform has been successfully initialized!
   

3. Plan Infrastructure Changes: After initialization, you can run terraform plan to see what changes Terraform will make to your infrastructure. Use -var-file to specify a variable file if needed.

    terraform plan
   

4. Apply Infrastructure Changes: If the plan looks good, you can apply the changes by running terraform apply. Use -var-file to specify a variable file if needed.

    terraform apply
   

5. Destroy Infrastructure: To destroy the infrastructure created by Terraform, you can run terraform destroy. Make sure to review the plan before proceeding.

    terraform destroy
   

What's in this repo

This repo contains the following files:

• provider.tf: This file contains the terraform code to setup Jenkins on AWS.
• variables.tf: This file contains the variables required for the terraform code.
• vpc.tf: This file contains the terraform code to setup the VPC, Subnet, Internet Gateway, Route Table, and Security Group on AWS.
• ec2.tf: This file contains the terraform code to setup the EC2 to host Jenkins instance from AMI on AWS.

Usage

The following variables are required to create a VPC via terraform.

Variable	Type	Description
region	string	The region where the VPC will be created.
vpc_name	string	The name of the VPC.
vpc_cidr_range	string	The CIDR range for the VPC.
subnet_name	string	The name of the subnet.
subnet_cidr_range	string	The CIDR range for the subnet.
subnet_zone	string	The availability zone for the subnet.
internet_gateway_name	string	The name of the internet gateway.
route_table_name	string	The name of the route table.
route_cidr	string	The CIDR block for the route table.
network_acl_ingress	list
network_acl_ingress[protocol]	string	The protocol for the network ACL ingress.
network_acl_ingress[port]	string	The port for the network ACL ingress.
network_acl_ingress[number]	string	The rule number for the network ACL ingress.
network_acl_ingress[action]	string	The action for the network ACL ingress.
network_acl_ingress[cidr]	string	The CIDR block for the network ACL ingress.
network_acl_egress	list
network_acl_egress[protocol]	string	The protocol for the network ACL egress.
network_acl_egress[port]	string	The port for the network ACL egress.
network_acl_egress[number]	string	The rule number for the network ACL egress.
network_acl_egress[action]	string	The action for the network ACL egress.
network_acl_egress[cidr]	string	The CIDR block for the network ACL egress.
jenkins_security_group_name	string	The name of the security group.
jenkins_security_group_ingress	list
jenkins_security_group_ingress[protocol]	string	The protocol for the security group ingress rules.
jenkins_security_group_ingress[port]	string	The port for the security group ingress rules.
jenkins_security_group_ingress[cidr]	string	The CIDR block for the security group ingress rules.
jenkins_ec2	object
jenkins_ec2[ami]	string	The AMI ID for the Jenkins EC2 instance.
jenkins_ec2[instance_name]	string	The name of the Jenkins EC2 instance.
jenkins_ec2[instance_type]	string	The instance type for the Jenkins EC2 instance.
jenkins_ec2[associate_public_ip_address]	string	Whether to associate a public IP address or not.
jenkins_ec2[volume]	object
jenkins_ec2[volume][size]	string	The size of the volume.
jenkins_ec2[volume][type]	string	The type of the volume.
jenkins_ec2_eip_allocation_id	string	The allocation ID for the Elastic IP.