; Step 2: Once the attacker gained access to the pod, the malware was able to perform two initial actions during execution: . If you have any questions, please leave a comment. Bootstrap the EC2 instance with a script that will install and start Jenkins. First of all, you might be thinking what is a key pair? Amazon EC2 or Elastic Compute Cloud is a service that provides scalable compute capacity in the cloud. In the previous post on creating EC2 key pair using terraform, I covered extensively how you can create a key pair. If the EC2 instance is SSM managed, you can use AWS Systems Manager Run Command to execute command on the instance. By using the Terraform tool you could create a VPC, subnets, security-group, internet-gateway and EC2 instance in AWS. Terraform code, that is, Terraform configuration files, are written in a tree-like structure to ease the overall understanding of code with .tf format or .tf.json or .tfvars format. You can execute the terraform plancommand to see what changes are going to be made. In your terminal, you just have run these commands with your Access and Secret key. AWS account and associated credentials that allow you to create resources. We will verify S3 access and the Jenkins installation with the upcoming steps. Theblog will help you to learn how to launch an EC2 Instance with the help of Terraform. Step 2: Create the Variables File The ec2_create.tf file is a base template for creating an EC2 instance, but having a separate variable file makes it dynamic. You can also subscribe to our newsletter below to not miss any updates from us. Next, to stay in line with best practices, we will execute the terraform plan command to preview the changes Terraform plans to make on our behalf. Whenever we want this IP, we can come to this directory and execute terraform outputto get it. You will notice that the apply command shows your plan output and asks you to Do you want to perform these actions?.Write yes and hit Enter to deploy the EC2 Instance. Some Sample usage of these API Keys in a terraform configuration. With Terraform, they can use code to streamline that process. 3-4 June 2022. After successfully installing the terraform, we will create an EC2 instance using Terraform, and we will use the VS code editor to write the script. The second command to be used is 'terraform plan'. Once the Initialization completed. Step 2: Create a security group Since this was a proof of concept and since I did not require HTTPS traffic, I did not bother to create more than what was necessary. This post is about Terraform AWS and how to create AWS resources like EC2 instance and SecurityGroup with Terraform. Set the user details and access typeSelect Programmatic access 4. You will be prompted to provide your input to create the resources. The terraform.tfstate file is used by Terraform to map real-world resources to your configuration, keep track of metadata, and improve performance for large infrastructures. I hope you learned something special today. I have used Visual Studio Code as an editor to write in files, we can use an editor of our choice and copy paste the following configurations to create variables.tf, terraform.tfvars and main.tf. On the Select trusted entity page, choose AWS service, and then select the EC2 use case. Try creating an instance, choose an AMI and see the Id of the AMI and use it. Create 'terraform.tfvars' which contains the definition of access_key and secret_key variables defined in the above file. Let us call it a Terraform AWS example. Terraform is a great open-source tool that provides the easiest code and configuration files to work with. Run a Terraform Plan This allows us to check the resources to be created, 19. Terraform supports a number of cloud infrastructure providers such as Amazon Web Services, IBM Cloud (formerly Bluemix), Google Cloud Platform, Linode, Microsoft Azure, Oracle Cloud Infrastructure, or VMware vSphere as well as OpenStack. Create an outputs.tf file This will output values after the creation of your resources. Fill out the vars.tfvars with your instance_type, (i) Login to the AWS Console < Search for EC2 < Select Launch instance < Scroll down to Instance type < Select Compare instance types, (ii) Search for the instance type you want < select and copy its name, (iv) Update your vars.tfvars with the value of the instance type, 15. Terraform is an infrastructure as a code (Iac) tool that allows you to create, change, and keep infrastructure compliance. In this post, youll learn how to create EC2 instance using terraform with key pair on AWS. Since this is a test instance, I want to destroy the resources I have created and I can do it by executing terraform destroycommand. A CSV file containing your credentials will be generated Download and open the CSV file on your computer to extract the Access Key ID and Secret Access Key Run the following command on your terminal / shell: Now that the data object has been created, we can create the EC2 instance. Create 'main.tf' which is responsible to create an EC2 on to AWS. Create a new Key Pair and name it ditwl_kp_infradmin. Providers are easily downloaded and installed with a few lines of HCL and a single command. Thats where IaC tools come into the picture. In order to do this, The Simplest way is to download and setup AWS CLI, You can refer to this document how to setup AWS CLI. Resource actions are indicated with the following symbols: Plan: 4 to add, 0 to change, 0 to destroy. Fill out the vars.tfvars with your instance_ami, https://docs.aws.amazon.com/AWSEC2/latest/UserGuide/finding-an-ami.html#finding-an-ami-aws-cli, (i) Login to the AWS Console and Search for EC2, (iii) Scroll down to the section Application and OS Images (Amazon Machine Image), (iv) Search for the instance image you want, (vi) Update your vars.tfvars with the value of the instance ami, 14. For Linux instances, the private key allows us to securely SSH into our instance. Copyright 2020 CloudKatha - All Rights Reserved, Click to share on Twitter (Opens in new window), Click to share on Facebook (Opens in new window), Click to share on LinkedIn (Opens in new window), Click to share on Telegram (Opens in new window), Click to share on WhatsApp (Opens in new window). We have provided authentication details as AWS CLI default profile. Run the following command: Once that MySQL client is installed, lets try connecting to the RDS instance. If you want to learn to create an EC2 instance from the AWS console then click here. Setup Programmatic Access Login to AWS Console, In the services, go to IAM and perform the following steps Step1: Add new user and key in the UserName Click to view the image Step2: Attach Existing Policies and Select Admin Click to view the image Terraform takes care of all of the underlying resources and dependencies for us! This will install the latest module and provider versions. Change), You are commenting using your Facebook account. Open the Amazon EC2 console at https://console.aws.amazon.com/ec2/. First, we are going to put together the variables file for Terraform. just leave the default settings alone. I will not be covering Jenkins in-depth in this article. it helps us set up even a complicated infrastructure in a short span of time. Terraform, An outstanding and innovative product from hashicorp and it is a leader in Infrastructure as Code tools Segment. Create a dedicated directory where we can create terraform configuration files. Now that the EC2 instance has been created, we can create the Elastic IP and attach it to the EC2 instance. You'll need to write out each argument you want to set with an expression which tells Terraform how you'd like to set it. Enter yes. So it refers to the profile: defaultfor the authentication. There are two ways to Provisioning EC2 key pairs with terraform Use Existing Key Create New Key Use Existing Key You can create one key using AWS console and use the existing one which is already present as shown below Now in your terraform code, you have to just use this key name in your configuration like this resource "aws_instance" "bastion" { The following combinations are supported to conditionally create resources: Disable resource creation (no resources created): create = false Create spot instance: create_spot_instance = true Notes network_interface can't be specified together with vpc_security_group_ids, associate_public_ip_address, subnet_id. In this post, you learnt how to create EC2 instance using Terraform with key pair on AWS. We are giving full permissions here but the best practice is to follow the Principle of Least Privilege (POLP) and give our user only the permissions needed to create an EC2 instance. Terraform outruns them for the right reasons. terraform-aws-ec2-instance Terraform Module for provisioning a general purpose EC2 host. `resource "aws_instance" "terraform_Demo_EC2_Instance" { ami = "$ {var.ami_id}" count = "$ {var.number_of_instances}" instance_type = "$ {var . Jenkins Steps : Connect to the AWS Lab Login into Jenkins Create the GitHub Credentials and DockerHub Credentials in Jenkins After creating the credentials, you can see the credentials saved as below Screenshot Select the region where instances will be created (as Key Pais are unique to each region), Go to EC2 AWS web console. In our case it is AWS. Terraform is an open-sourceinfrastructure as codesoftware tool created by HashiCorp. Here they are again: Now that the security groups are done, lets move over to RDS. Fill out the vars.tfvars with your desired key_pair_name. This was the db_password you created in your secrets file. Before you can create an EC2 instance with key pair, you will need a key pair. Once you have created'variables.tf', do not forget to change values assigned to variable. Read this book and I highly recommend it. Through this tutorial, you learned how to use Terraform to configure AWS VPC, EC2, and RDS instances. Lets learn how to use Terraform count meta argument. In this project write-up, I will cover deploying an EC2 into a new VPC with Jenkins installed using Terraform. We use cookies to ensure that we give you the best experience on our website. If you have already created a key pair on AWS, then all you need to do is specify the key pair name while creating an EC2 instance. If you want to set to values derived from your for_each elements then you can write it like this: resource "aws_instance" "ec2-instance" { for_each = var.instances ami = var.ami instance_type = each.value.instance_type tags . Here is what the final configuration file looks like. Notify me of follow-up comments by email. The EC2 Instance is defined using the aws_instance resource . Assuming you are still logged into the Ubuntu machine using your favorite SSH client. After successfully running the terraform init command, Run the terraform plancommand. Some of our partners may process your data as a part of their legitimate business interest without asking for consent. This command is used to see the changes that will take place on the infrastructure.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'howtoforge_com-box-4','ezslot_4',110,'0','0'])};__ez_fad_position('div-gpt-ad-howtoforge_com-box-4-0'); 'terraform apply' command will create the resources on the AWSmentioned in the main.tf file. Create a file called vars.tfvarsThis will contain the value of all your input variables, 12. If you havent noticed, this Terraform code creates an SSH key in your current working directory that we can use to SSH into your EC2 instance! After the DB subnet group has been created, we can now create the database. Step 3) Click on Launch Instances to create a new EC2 instance. It helps with most of the autocompletes. Also, we have specified the region in which we would like terraform to create my resources. Subscribe to our newsletter to get notified each time we post new content. How to apply AWS EC2 with Boto3 & Python - Part 1, How to apply AWS EC2 with Boto3 & Python - Part 2, How to create Azure Kubernetes Service using Terraform - Part 1, How to create Azure Kubernetes Service using Terraform - Part 2, Introduction to AWS Developer Tools - Part 1, Introduction to AWS Developer Tools - Part 2, How to apply Scale-down Mode to delete/deallocate nodes in AKS. Made with love and Ruby on Rails. We can view a lot of information about our deployment from this command. Now that the VPC resource has been created, its time to create the Internet Gateway and attach it to the VPC. NOTE: I am using the WSL terminal in this demonstration, but you can follow along using any terminal supporting the abovementioned prerequisites. Create a folder called terraform-example where the HCL files will live, then change directories to that folder. Terraform commands terraform init terraform plan terraform apply All executed successfully. Though terraform accepts the Access Key and Secret Key hardcoded with in the configuration file.