Deploy Microservice Application using Docker, Terraform and Ansible

Prerequisites

• Install Terraform and Ansible in your linux(ubuntu), WSL or Macbook
• Purchase a domain name
• Install AWS CLI
• Configure Terraform access with AWS

Clone Git repository

git clone https://github.com/Matt-Audu/Automating-Microservice-Deployment

Set up your environment

• Add the path to your SSH key at ansible_inventory block in main.tf

#resource "local_file" "ansible_inventory" {
  filename = "inventory.ini"
  content  = <<EOT
[main]
${aws_instance.main.public_ip} ansible_user=ubuntu ansible_ssh_private_key_file=${path.module}<path/to/Terraform/tfkey.pem>
EOT
}

• Comment out Ansible Config in Main.tf

/*
resource "local_file" "ansible_inventory" {
  filename = "inventory.ini"
  content  = <<EOT
[main]
${aws_instance.main.public_ip} ansible_user=matt ansible_ssh_private_key_file=${path.module}Terraform/tfkey.pem
EOT
}

# Trigger Ansible playbook
resource "null_resource" "run_ansible" {
  depends_on = [local_file.ansible_inventory]

  provisioner "local-exec" {
    command = "ANSIBLE_HOST_KEY_CHECKING=False ansible-playbook -i inventory.ini playbook.yml"
  }
}
*/

Provision Deployment server

• Provision your deployment instance to generate public IP for Domain name

terraform init
Run terraform plan
Run terraform apply

Map Public Ip to Domain name

• Create an A record
• Create a CNAME record with wildcard subdomain option

Configure Ansible

• Disable Host key Checking

vi ~/.ansible.cfg

• Paste this settings

[defaults]
host_key_checking = False

Configure domain name and subdomain for traefik

• Head over to https://github.com/Matt-Audu/DevOps-Stage-4
• Edit docker-compose.yml
• Edit domain name and subdomains for the various services to your own

Deploy infrastructure

• Remove comment from Ansiblerblock in Terraform/main.tf
• Run terraform init
• Run terraform apply -auto-approve

Access Endpoints

• Frontend: https://domain.com is https://mattaudu.xyz
• Auth API: https://auth.domain.com is https://auth.mattaudu.xyz
• Todos API: https://todos.domain.com is https://todos.mattaudu.xyz
• Users API: https://users.domain.com is https://users.mattaudu.xyz