Can we create EC2 key pair using CloudFormation?

The use of some AWS CloudFormation resources and templates will require you to specify an Amazon EC2 key pair for authentication, such as when you are configuring SSH access to your instances. Amazon EC2 key pairs can be created with the AWS Management Console.

How do you create a key pair using CloudFormation?

To create a new key pair, omit the PublicKeyMaterial property from the template. When Amazon EC2 creates a new key pair, the private key is saved to an AWS Systems Manager Parameter Store. The name of the Systems Manager parameter follows the format /ec2/keypair/{key_pair_id} .

What is key pair type in AWS?

A key pair is a combination of a public key that is used to encrypt data and a private key that is used to decrypt data. For more information about key pairs, see Amazon EC2 Key Pairs in the Amazon EC2 User Guide for Linux Instances. The AWS CloudFormation template for this tutorial, development-environment.

How do I find my AWS key pair?

Method 1: Enter user-data

  1. Create a new key pair.
  2. If you create the private key in the Amazon EC2 console, then retrieve the public key for the key pair.
  3. Open the Amazon EC2 console.
  4. Stop your instance.
  5. Choose Actions, Instance settings, Edit user data.
  6. Copy the following script into the Edit user data dialog box:

What is parameter CloudFormation?

Parameter types enable CloudFormation to validate inputs earlier in the stack creation process. For example in the past if you entered an invalid key pair, you would have to wait until CloudFormation attempted to create the Amazon EC2 instance to see the problem.

How do I create AWS key pairs?

You can use the AWS Command Line Interface (AWS CLI) to create, display, and delete your key pairs for Amazon Elastic Compute Cloud (Amazon EC2). You use key pairs to connect to an Amazon EC2 instance….References

  1. aws ec2.
  2. aws ec2 create-key-pair.
  3. aws ec2 delete-key-pair.
  4. aws ec2 describe-key-pairs.

How do you create a key pair?

How to Create a Public/Private Key Pair

  1. Start the key generation program.
  2. Enter the path to the file that will hold the key.
  3. Enter a passphrase for using your key.
  4. Re-enter the passphrase to confirm it.
  5. Check the results.
  6. Copy the public key and append the key to the $HOME/.

What are key pairs?

A key pair, consisting of a public key and a private key, is a set of security credentials that you use to prove your identity when connecting to an Amazon EC2 instance. Amazon EC2 stores the public key on your instance, and you store the private key.

What are the main components of CloudFormation?

A CloudFormation template consists of 6 sections – Description, Parameters, Mappings, Conditions, Resources and Outputs.

What is string in CloudFormation?

String. A string with variables that AWS CloudFormation substitutes with their associated values at runtime. Write variables as ${ MyVarName } . Variables can be template parameter names, resource logical IDs, resource attributes, or a variable in a key-value map.

What is a key pair?

Why do we need key pair in AWS?

You use key pairs to connect to an Amazon EC2 instance. You must provide the key pair to Amazon EC2 when you create the instance, and then use that key pair to authenticate when you connect to the instance. For additional command examples, see the AWS CLI reference guide .