how to create ec2 instance in aws using terraform how to create ec2 instance in aws using terraform

Create a folder called terraform-example where the HCL files will live, then change directories to that folder. All of these can manage IaC and work with different cloud providers except Cloud Formation as it was limited only to AWS. (ii) Open the command line and export the Terraform environment variables. Login to the AWS Console 2. Git 5. Create Security group which allow port 80 (HTTP), 22 (SSH), 2049 (EFS) and egress rule to all traffic and a key. Amazon EC2 enables you to scale up or down the computations such as memory or CPU when needed. What parameter should I add for populating the NAME field. Amazon EC2 or Elastic Compute Cloud is a service that provides scalable compute capacity in the cloud. Docker Hub 3. A list of all images that match . I have specified the minimum set of parameters to create an instance above. In a universe of various Cloud technologies (planets) like AWS, Azure, Digital Ocean etcetera. Using Terraform to Create EC2 and RDS Instances Inside a Custom VPC on AWS This is the architecture diagram of what we will be creating with Terraform Background Scenario: Your team. Scenario: Your team has been working on a web application that uses a database. Use the following command to create a directory and change our present working directory to it. The first command to be used is 'terraform init'. How do you do, Login to AWS Console, In the services, go to IAM and perform the following steps, Step1: Creating a Configuration file for Terraform AWS, The Terraform AWS Example configuration file, Step3: Pre-Validate the change A pilot run, # aws_instance.project-iac will be created, # aws_security_group.project-iac-sg will be created. Follow DevopsJunction onFacebook orTwitter It will become hidden in your post, but will still be visible via the comment's permalink. If you would like to change your settings or withdraw consent at any time, the link to do so is in our privacy policy accessible from our home page.. They can still re-publish the post if they are not suspended. Let's see if our database was created. Your team will be using EC2 instances to deploy the web application and MySQL RDS for the database. It is always a tough choice to choose the right product from this. First, we will need to install the MySQL client. Now open the terminal of VS code editor or command prompt (cmd). Thanks to IaC.!! Create 'variables.tf' which contains the declaration and definitionof the variables. Docker 2. You can use Amazon EC2 to launch as many or as few virtual servers as you need, configure security and networking, and manage storage. Create a file called variables.tf This will contain the name, description, type and default values of all your input variables. Terraform modules can further call another child to terraform modules from local directories or anywhere in disk or Terraform Registry. 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. Now that the EC2 instance has been created, we can create the Elastic IP and attach it to the EC2 instance. In this article, we saw the steps to create an EC2 instance in the region of our choice. You can literally get started with EC2 in minutes using AWS Management Console. Now that we have defined both the variables and secrets, lets start creating our config file. Another special argument is Terraform count. Create 'terraform.tfvars' which contains the definition of access_key and secret_key variables defined in the above file. Create an EC2 instance on AWS using Terraform, 'access_key' & 'secret_key' of an AWS IAM User. The database that we declared in our variable settings.database.db_name is there! . terraform apply. Posted on May 15, 2022 Step#5: Now open the terminal of VS code editor or command prompt (cmd). Before you executethe following commands make sure you have configured the valid access_key and secret_key. You can use an editor of your choice and copy-paste the following configurations to create variables.tf, terraform.tfvars, and main.tf Create 'main.tf', which is responsible for creating VPC on to AWS with the dependent resources. What is the use of Node Pool snapshot in AKS ?. Here's an example of how to delete the AWS EC2 instance created in the previous example: terraform destroy. It will be prompted to provide our input to create the resources. We are ready with the boilerplate code. Set the user details and access typeSelect Programmatic access, 4. As you have downloaded the API Access and Secret keys. When you execute the above command, you can see that. In case if you are using the Environment variables method. aws_ instances aws_ key_ pair aws_ launch_ template EC2 Image Builder ECR (Elastic Container Registry) ECR Public ECS (Elastic Container) EFS (Elastic File System) EKS (Elastic Kubernetes) ELB (Elastic Load Balancing) ELB Classic EMR EMR Containers EMR Serverless ElastiCache Elastic Beanstalk Elastic Transcoder Elasticsearch Elemental MediaConvert Terraform installed on the Ubuntu Machine. Try creating an instance, choose an AMI and see the Id of the AMI and use it. I thought it would be wiser to choose AWS as our cloud provider for this post. Such as-. Dont forget to enter the exit command to return to your main terminal. While we are managing our AWS Infrastructure, we cannot always afford to login to the AWS console all the time and it is not recommended from the security perspective, Whether it is On-Prem (or) Cloud-hosted, A Typical Non-Containerized Enterprise infrastructure would have ample of Virtual Machines aka Servers [ Linux ] Let us suppose that you work for the DevOps team of a Big Organization where you manage 100+ ec2 instances. Copy/Write the file to the S3 bucket URI. Open your AWS Console and go to the EC2 dashboard. ssh-keygen is the command that will generate an SSH key for you. 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. we need to use this file as an input while running the applycommand, From the preceding output, you can see the instance creation took only 31 seconds and it completed and gave us the public ipas an output. We use cookies to ensure that we give you the best experience on our website. Terraform typically means transforming (a planet) so as to resemble the earth, especially so that it can support human life. The AWS provider needs to be configured with the proper credentials before it can be used. The output variables would be saved locally and can be viewed anytime in the future with. So let us go and do some farming in the AWS planet. Create another file terraform.vars file in the /opt/terraform-for_each-demo directory and copy/paste the content below. We have various articles on Terraform that covers basic to advanced topics of Terraform. Bootstrap the EC2 instance with a script that will install and start Jenkins. 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. If you don't have access to AWS, create one free tier account. Resource actions are indicated with the following symbols: Plan: 4 to add, 0 to change, 0 to destroy. You provide a keypair so that you can use it later to connect to your instance. You can verify the outputs shown and what resources are going to be created or destroyed. Time to create the security groups! This tutorial is a shorthand to show how to start using this tool. I am new to terraform and still learning . Required fields are marked *. Terraform configuration is written in a specific language namedHashicorp Configuration Languageand it can optionally be written in JSONas well. Terraform is a great automation choice of tool to create Iaac (Infraestructure as a service) for AWS. Resource ssm_command from 'pbobov/ssm' provider can be used to run SSM commands by Terraform. You should have successfully reached the Jenkins Getting Started page that is displayed on every new Jenkins installation. Create an EC2using the Terraform configuration files. Also, we have specified the region in which we would like terraform to create my resources. This command downloads and installs plugins for providers used within the configuration. Either you should save these Keys as Environment variables (or) save it as a AWS Config profile. As we have crossed all the sections of basic and prerequisites. So now, we should go and create these access and secret keys for your AWS account. We can create the AWS Key Pair using the AWS Console, AWS CLI, or PowerShell. So you should keep updating the API key and should not use the Same API key for a long period of time. This command is used to apply the changes required to reach the desired state of the configuration or the pre-determined set of actions generated by a terraform plan execution plan. Each resource block describes one or more infrastructure objects, such as virtual networks, compute instances, or higher-level components, such as DNS records. Now, I know what you are probably thinking. Made with love and Ruby on Rails. Within your terminal, create another directory and CD into it: Now, using your favorite text editor, create the following four tf files in this directory and enter the code below for each file. Follow me on Linkedin My Profile The EC2 Instance is defined using the aws_instance resource . In real-time use cases you would not be created just once EC2 instance but many at once. Create 'terraform.tfvars' which contains the definition of access_key and secret_key variables defined in the above file. Some of the Terraform blocks (elements) and their purpose is given below. The best practice is to keep changing the API Access Key and recreating it. In the previous example, you created more than four AWS instances, but all the instances contain the same attributes such as instance_type, ami, etc. In your terminal, you just have run these commands with your Access and Secret key. We will cover few basic elements like what is Infrastructure as code, What is Terraform etc and setup AWS API authentication and start creating Terraform configuration files for AWS provisioning, Infrastructure as Code often referred to as IaC, is where the developer or system admins write code to achieve the end state of the infrastructure or server they desire. Adding a comment below on what you liked and what can be improved. Now you try login to the EC2 using the session manager as below:- Click on the Connect button in EC2 console 2. Create an IAM user with admin privileges.