Userdata Config

add user data config for cloudformation ec2 template to install required apps and set configs at instance creation and start-up

List of Applications and Extensions

• Nginx
• Docker
• CertBot
• MySQL Client
• Hashicorpt Vault (no config required, only for CLI)
• [Vault SSH Helper]https://github.com/hashicorp/vault-ssh-helper
• SmallStep CLI
• [AWS CLI v2] (https://docs.aws.amazon.com/cli/latest/userguide/install-cliv2-linux.html)
• amazon-ecr-credential-helper