Leasing SSH Keys for Remote Server Access

Introduction

In this guide, we will demonstrate how to lease SSH keys for remote server access using Pulumi. This involves creating an SSH key pair and configuring it for use with a remote server. We will be using AWS as our cloud provider, and the key services involved will include AWS EC2 for the server and AWS IAM for managing the SSH keys.

Step-by-Step Explanation

Step 1: Create an SSH Key Pair

We will start by creating an SSH key pair using Pulumi’s AWS provider. This key pair will be used to access the remote server.

Step 2: Provision an EC2 Instance

Next, we will provision an EC2 instance and configure it to use the SSH key pair created in the previous step. This will involve specifying the key pair in the instance configuration.

Step 3: Configure IAM Policies

We will then configure IAM policies to manage access to the SSH key pair. This includes creating a policy that allows the necessary permissions for using the key pair.

Step 4: Deploy the Infrastructure

Finally, we will deploy the infrastructure using Pulumi. This will create the SSH key pair, provision the EC2 instance, and configure the IAM policies.

Summary and Conclusion

In this guide, we demonstrated how to lease SSH keys for remote server access using Pulumi. We created an SSH key pair, provisioned an EC2 instance, and configured IAM policies to manage access to the key pair. This setup ensures secure access to the remote server using the leased SSH keys.

Full Code Example

import * as pulumi from "@pulumi/pulumi";
import * as aws from "@pulumi/aws";

// Step 1: Create an SSH Key Pair
const sshKey = new aws.ec2.KeyPair("ssh-key", {
    keyName: "my-key-pair",
    publicKey: "ssh-rsa AAAAB3NzaC1yc2EAAAADAQABAAABAQC0..." // Replace with your actual public key
});

// Step 2: Provision an EC2 Instance
const server = new aws.ec2.Instance("web-server", {
    instanceType: "t2.micro",
    ami: "ami-0c55b159cbfafe1f0", // Amazon Linux 2 AMI
    keyName: sshKey.keyName,
    tags: {
        Name: "web-server",
    },
});

// Step 3: Configure IAM Policies
const policy = new aws.iam.Policy("ssh-key-policy", {
    description: "A policy to manage access to the SSH key pair",
    policy: JSON.stringify({
        Version: "2012-10-17",
        Statement: [
            {
                Action: [
                    "ec2:DescribeKeyPairs",
                    "ec2:CreateKeyPair",
                    "ec2:DeleteKeyPair",
                ],
                Effect: "Allow",
                Resource: "*",
            },
        ],
    }),
});

// Step 4: Export the public IP and key name
export const publicIp = server.publicIp;
export const keyName = sshKey.keyName;