Digital Ocean VPC using Terraform and Ansible

Usage

1. Ubuntu/Debian
2. Mac

Requirements

• Digital Ocean personal access token

• SSH public key id_rsa.pub at ~/.ssh/id_rsa.pub

• *.tfvars file should look like this -

do_token = "your digital ocean private access token"

How to Run

• First, terraform apply

terraform apply

• Save the output

terraform output -json > ansible/output.json

• Now to run the ansible playbooks, let's cd into the ansible/ directory

cd ansible

• Run this playbook to configure the NAT gateway

ansible-playbook nat_gateway.yaml

• Run this playbook to setup the app servers

ansible-playbook app_config.yaml

• Go back to the project root folder

cd ..

• To test the vpc you can run the test-run.sh script (inside the project root dir) which will curl the loadbalancer

chmod +x scripts/test-run.sh
./scripts/test-run.sh

• The output should demonstrate the Round Robin algorithm in action.

Note

If you are on a Mac, chances are that the sed command works differently to the Linux version of sed

To avoid any issues, follow these steps to install gnu-sed in your command line.

brew install gsed

and add this to ~/.zshrc in your mac

PATH="/usr/local/opt/gnu-sed/libexec/gnubin:$PATH"

References

• https://docs.digitalocean.com/products/networking/vpc/how-to/configure-droplet-as-gateway/