Kyle - DevOps test

Folder structure:

• terraform/

  Terraform code to create AWS Infra in us-west-2

• ansible/

  Ansible playbook to deploy the app to EC2

• gfgapp/

  Golang app source code

Prerequisites:

1. Terraform 0.12

terraform version
Terraform v0.12.24

2. Ansible 2.9

ansible --version
ansible 2.9.9
  config file = None
  configured module search path = ['/Users/thunguyen/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/local/lib/python3.7/site-packages/ansible
  executable location = /usr/local/bin/ansible
  python version = 3.7.7 (default, Mar 10 2020, 15:43:33) [Clang 11.0.0 (clang-1100.0.33.17)]

3. Golang 1.13.8

go version
go version go1.13.8 darwin/amd64

4. AWS environment setup. SET REGION TO us-west-2 ( Due to simplicity, I hardcoded this ;) )

Flow:

1. Spin up the infra using Terraform

cd terraform/
terraform apply -auto-approve -var 'postgres_password=[whatever]'

Example:

terraform apply -auto-approve -var 'postgres_password=gfg654321'

NOTE: Copy the output of Terraform "ec2_ip", "rds_endpoint" and "ssh_priv_key" to use in the next step

2. Deploy using Ansible

cd ansible/
ansible-playbook -i [Output of Terraform "ec2_ip"], -u ec2-user --private-key [~/.ssh/gfgkey] --extra-vars [Output of Terraform "rds_endpoint] deploy.yml

Example:

ansible-playbook -i 54.202.129.163, -u ec2-user --private-key ~/.ssh/gfgkey --extra-vars "postgres_endpoint=terraform-20200513140901941400000006.coc5vakaf5qu.us-west-2.rds.amazonaws.com" deploy.yml

3. (OPTIONAL) Build the Golang app and copy to Asible folder

cd gfgapp/
GOOS=linux GOARCH=amd64 go build -o main .
cp main ../ansible/app