how to create ec2 instance in aws using terraform

There are various automated ways that can create multiple instances quickly, but automating with Terraform is way easier and more fun. Notify me of follow-up comments by email. Create main.tf which is responsible to create an EC2 on AWS. Terraform deploying resources in AWS. 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. Now open the terminal of VS code editor or command prompt (cmd). Use the following command to create a directory and change your present working directory to it. if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'howtoforge_com-box-3','ezslot_3',106,'0','0'])};__ez_fad_position('div-gpt-ad-howtoforge_com-box-3-0'); Create a dedicated directory where you can create terraform configuration files. In this post, youll learn how to create EC2 instance using terraform with key pair on AWS. Now, I know what you are probably thinking. Simply runterraform destroyand it will delete all that you created usingmain.tf. In this article, we saw the steps to create an EC2 instance in the region of our choice. Lets check whether its created or not. This will allow the team to utilize the tool in multiple environments and better track any changes made to the environment. Search for AWS IAM 3. Once you have created the files above and added the Terraform configuration, you should have the following files in your directory. Provider_type: It is the aws resource type to create in the provider, e.g., aws_instance., Name:It is the aws resource name, e.g., instance name: example.. Developers can create an Amazon EC2 instance to test software in a development or staging environment, or to deploy software to production. Open the IAM console at https://console.aws.amazon.com/iam/. Required fields are marked *. -b option says the size of the key. While this sounds convenient. Run a Terraform Destroy Destroy the resources, If you are happy, with the resources to be create, type yes. Terraform (hashicorp) themselves have done that job for you on their website. This is going to contain 3 parts: We will be creating a new key pair in our terraform directory. You can see all the other attributes you can specify in the official documentation. In this guide, we going to launch an EC2 Instance (Ubuntu Server 20.04 LTS) on AWS with Terraform. If you are using VS Code, install the terraform extension. How to Create Dockerfile step by step and Build Docker Images using Dockerfile, How to Connect two Linux machines using SSH keys, How to Launch AWS Elasticsearch using Terraform (Terraform aws elasticsearch), Follow DevOps Automateinfra Learning on WordPress.com, Ubuntu machine 20.04 versionwould be great , if you dont have any machine you can create a AWS EC2 instance on. Read: Ways in Which You can Create and Manage AWS Resources. we have a dedicated article that talks about this in detail. If you enjoyed this article then please share to your friends and if you have suggestions or thoughts to share with me then please write in the comment box. 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. . Create and assign a Security Group to the Jenkins Server that allows traffic on port 22 from your Public IP and allows traffic from port 8080. We have chosen 4096 as it is considered strong enough. Terraform is a Single file binary which you can download and run it without any additional installation. This was the db_password you created in your secrets file. While the world is moving towards containers and desired state and auto-scale. I am new to terraform and still learning . 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! NOTE: I am using the WSL terminal in this demonstration, but you can follow along using any terminal supporting the abovementioned prerequisites. Enter a Name for your key, select pem for openSSH or ppk for Putty and then click on Create key pair. (LogOut/ If you in the learning path. Follow DevopsJunction onFacebook orTwitter Provider:Terraform relies on plugins called providers to interact with remote systems. 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). Such as-. EC2 instances are virtual machines running on AWS, and a common component of many infrastructure projects. Woohoo! Most upvoted and relevant comments will be first. Terraform performs a refresh, unless explicitly disabled, and determines what actions are necessary to achieve the desired state specified in the configuration files. We can create the AWS Key Pair using the AWS Console, AWS CLI, or PowerShell. 3-4 June 2022. 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. As you can see, well be working with the AWS provider. ssh-keygen is the command that will generate an SSH key for you. The resource name and VPC are set to variables created in the next step. Here is what the final configuration file looks like. Create terraform.tfvars which contains the definition of access_key and secret_key variables defined in the above file. This will create your EC2 instance in AWS and create a private key file on your local machine. Create a VPC and subnets Create an internet gateway and route table to make the subnet public Create security groups Create an ec2 instance on a public subnet and install nginx Every block of code in this article needs to be added to a .tf file and run using terraform to setup the infrastructure. How to Create EC2 Instance using Terraform with Key Pair on AWS, In my previous articles, you have seen how to launch an EC2 instance in AWS using different ways. For example, You want to launch Ubuntu 18.04, You can find the AMI ID of Operating system, You should use this AMI ID in your terraform file to launch an EC2 Instance with Ubuntu 18.04 Launching an EC2 instance using Custom AMI: Since this is going to be the process ofInfrastructure as a Codeparadigm. 7. Welcome Back, everyone! So we are going to programmatically create terraform ec2 instance. It helps with most of the autocompletes. Cloud DevOps Engineer Specialised in GCP| AWS| Here l document Hands-on projects in Cloud | https://www.linkedin.com/in/brine-ndam-ketum-6ab435231. Lets execute terraform destroy to tear down our infrastructure with one command. Add a user 4. We're a place where coders share, stay up-to-date and grow their careers. In our case, we will use Ubuntu. This is a Syntax of how Terraform Configuration file blockis formatted. While everything has its pros and cons. As you have downloaded the API Access and Secret keys. I have specified the minimum set of parameters to create an instance above. Static stuff can be provided by adding an access_key and secret_key in-line in the AWS provider block. Easy and happy Learning! You can find the instructions hereInstalling Terraform CLI. This main.tf will read values of variables from variables.tf and terraform.tfvars. Since we have saved the plan output to a file named tfplanto guarantee the changes. Please read the same here, Terraform AWS EC2 user_data example aws_instance| Devops Junction. Configuration:Configuration consists of one or more arguments that are specific to the resource. Once the command completes, you should see an output similar to below: We will verify the successful state of our deployment in a few ways. Connect to your instance using your private SSH key, (i) Each Instance gets a default user added to it, depending on its distribution. Create a new directory for your Terraform files. Are you sure you want to hide this comment? Terraform modules are on the top level in the hierarchy where configuration files reside. The second command to be used is 'terraform plan'. just leave the default settings alone. you will see instance is created in AWS. Run a Terraform Plan This allows us to check the resources to be created, 19. Version This specifies which subset of available provider versions the module is compatible with. Docker 2. Terraform takes care of all of the underlying resources and dependencies for us! For more practical videos and tutorials. You will be prompted to confirm that you want to perform these actions. Theblog will help you to learn how to launch an EC2 Instance with the help of Terraform. This button displays the currently selected search type. In the preceding output. Have terraform installedon your machine that you will be using to write your code. /* This Terraform deployment creates the following resources: resource "aws_internet_gateway" "internet_gateway" {, resource "aws_default_route_table" "default_route" {, resource "aws_iam_instance_profile" "ec2_instance_profile" {, resource "aws_iam_role_policy" "ec2_role_policy" {, # Create EC2 Security Group and Security Rules, resource "aws_security_group" "jenkins_security_group" {, resource "local_file" "private_key_pem" {, ssh -i ec2-user@, https://pkg.jenkins.io/redhat-stable/jenkins.repo, https://pkg.jenkins.io/redhat-stable/jenkins.io.key, https://www.linkedin.com/in/brine-ndam-ketum-6ab435231. Copy/Write the file to the S3 bucket URI. Terraform. This feature is only available to subscribers. please do take a look by following this link, If you would like to give a chance to Terraform and want to learn all the bits and pieces of it. Step 1) Open up your AWS console or directly visit ' console.aws.amazon.com '. For further actions, you may consider blocking this person and/or reporting abuse. Your email address will not be published. . If you want to learn to create an EC2 instance from the AWS console then click here. We will explore it by following this piece of code step by step. 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" { Create another file and name it as provider.tf. Next initialize the Terraform using terraform init command followed by terraform plan and finally terraform apply to deploy the changes. Here is the sample Terraform Configuration file saved with *.tf extension. The naming conventions of the tf files are only significant in letting us know the purpose of each configuration file. Open your AWS Console and go to the EC2 dashboard. Besides that, you should also monitor this line every time you run this command to make sure that no unintended result happen. I am using "vim" as an editor to write in files, you can use an editor of your choice and copy paste the following configurations to create variables.tf, terraform.tfvars and main.tf. To facilitate the team's use of Jenkins as their preferred CI/CD tool for DevOps projects, it is necessary to create a Jenkins server using Terraform. Change). You have a new hire in your team, Infrastructure as Code is a Brilliant Concept in DevOps and Packer and Terraform are two major technologies/products in this segment. Now you deployed an AWS EC2 Instance in your AWS account using Terraform. The terraform plan command is used to create an execution plan. Amend the Network Settings of your Instance. Before you use terraform to provision your resource, you need to tell it which cloud provider you will be working with. But before we create the EC2 instance, lets create a data object that will hold the most recent versions of Ubuntu 20.04. There are ample amount of BLOCK_TYPEavailable in Terraform and the resourceis primary and all others are to support building that specified resource. 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. Make sure that you have the private key of the key pair you are specifying handy with you. Before you executethe following commands make sure you have configured the valid access_key and secret_key. So which argument do you plan to use in your next Terraform deployment? Set the user permissionsUnder Set permissions < Attach an existing policy < Select AdministratorAccess. When you execute the above command, you can see that1 new resource hasbeen added and 0has been destroyed in the output. If you had any issues throughout this tutorial, you can compare your code to the final code here: https://github.com/dispact/terraform-custom-vpc. For every type of provider, there are many different kinds ofresources that you can create, such as databases, security groups, instances, VPC and load balancers, etc. 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. Step4: Go ahead and Apply it with Terraform apply, EC2 instances with different Configuration. Create another file terraform.vars file in the /opt/terraform-for_each-demo directory and copy/paste the content below. Delete the createdEC2 instanceusing Terraform. This is the first command that should be run after writing a new Terraform configuration. When we created our EC2 instance we did not specify a Security Group so our instance will use the default Security Group for the region.

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