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cloudvirtualmachine's Introduction

CloudVirtualMachine

CloudVirtualMachine (CVM) serves to allow one to easily provision cheap, stateless working EC2 instances on the AWS cloud. Think of it as a Terminal.

How to use

Connect to Bastion host

Your instance is isolated and fronted by a Bastion. Therefore, to connect to your instance you need to jump via your Bastion. This is how to do it.

  1. Send public SSH key to EC2.

EC2 Instance Connect works by uploading a one-time SSH public key to the Bastion host, which will grant you access via your SSH client of choice. After deployment, a pre-formatted CLI command with by outputted for you to paste into your console. It looks something like this:

aws ec2-instance-connect send-ssh-public-key --instance-id i-xxxxxxxxxxxx --instance-os-user ec2-user --ssh-public-key file://C:\Users\whoever\CloudVirtualMachine\temp_key.pub --availability-zone eu-west-1a
  1. Connect via SSH

Once your public SSH key has been sent to EC2, you can now connect using the SSH client of your choice. Similarly, a sample command is generated for you. For example:

ssh -o "IdentitiesOnly=yes" -i C:\Users\whoever\CloudVirtualMachine\temp_key.pem [email protected]

Jump to worker Instance

From your Bastion host, you can now jump to your worker Instance.

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cloudvirtualmachine's Issues

VNC bootstrap

install and configure VNC remote desktop daemon programmatically and non-interactively...

Automate sending EC2 Instance Connect public keys

Currently the command to send-ssh-public-key is although printed as an Output, still needs to be executed manually by the user.

        send_key_command = f"aws ec2-instance-connect send-ssh-public-key --instance-id {bastion.instance_id} --instance-os-user {bastion_user} --ssh-public-key file://{public_key_key} --availability-zone {az}"
        CfnOutput(self, 'SendPublicSshKeyCommand',
                  value=send_key_command,
                  description='Command to send public SSH key to Bastion.',
                  )

        ssh_command = f"ssh -o \"IdentitiesOnly=yes\" -i {private_key_path} {bastion_user}@{bastion.instance_public_dns_name}"
        CfnOutput(self, 'BastionSSHcommand',
                  value=ssh_command,
                  description='Command to SSH into Bastion.',
                  )

It would be nice if this was taken care of seamlessly during deployment. Step Functions perhaps??

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