Rancher Terraform DigitalOcean

Terraform module for a rancher server on Digitalocean.

What you will get?

• A Rancher server running on DigitalOcean
• A Domain rule pointing to your Rancher server

Features

• It works with your main DigitalOcean account or with DigitalOcean teams. For using a team you just need that team special token and your SSH keys installed there.
• It doesn't install puppet, chef or ansible on the host. Instead it uses cloud-init.
• It closes all the external and internal traffic and the only ports opened are the 80 and 8080.
• Login with root user is disabled, you will need your SSH keys.
• Iptables rules are persistent after reboot.
• You will get the new DigitalOcean beta metrics agent installed.

What you will need?

• Terraform installed. This was tested with the 0.8.5 version. You can see terraform instructions here.
• A DigitalOcean account. If you still don't have one you can create one here for free.
• You DigitalOcean token. You can get it from here.
• Public and private SSH keys on your local machine and set them up on your Digital Ocean account. You can learn how to do that here.

How to use it

Clone this repository

git clone git@github.com:lunagt/rancher-terraform-digitalocean.git

Inside the repository folder create a copy of the example tfvars file

cp terraform.example.tfvars terraform.tfvars

Edit this new file with the variables you want (see variables section at the end).

Runing it

   terraform apply     If you don't need your server anymore, just destroy it

terraform destroy #and type 'yes' after this command

Variables

Mandatory DigitalOcean API Variables

Variable	Default	Description
do_token	empty	DigitalOcean Personal Access Token
pub_key	empty	Public key location, so it can be installed into new droplets
pvt_key	empty	Private key location, so Terraform can connect to new droplets
ssh_fingerprint	empty	Fingerprint of SSH key

Mandatory Host Variables

Variable	Default	Description
domain	empty	Existing DigitalOcean DNS in which the host will be added e.g. example.com

Optional Host Variables

Variable	Default	Description
host_name	rancher-server	Name of the host to be created
image	docker-16-04	Base image for the host
region	sfo1	Digital Ocean region for the host
size	1gb	Digital Ocean size of the host (512mb, 1gb, 2gb)
private_networking	false	Enable/Disable private networking
domain_name	rancher.	Domain name, for example "rancher." (note the dot at the end), so you will have rancher.example.com
user	rancher	Username to be used to login to the host and for the home folder.