terraform-churros-openstack

Simple terraform configuration to run an openstack server named Churros.

Configuration

Install Terraform

Install Terraform by following the steps described on the official web site.

Credentials

Change values in terraform.tfvars and .adminrc files with your openstack admin credentials.

Generate SSH keys

Run ssh-keygen in order to generate private and public keys. Make sure that the keys are placed in .ssh/ folder.

$ cd .ssh/
$ ssh-keygen -t rsa

The keys must be named id_rsa and id_rsa.pub, alternatively you have to change the variable name in variables.tf.

...

# Keypair
variable "keypair_name" {
	default = "churros_keypair"
}

variable "ssh_key_file" {
	default = ".ssh/id_rsa"     <-- Change this variable
}

Network

The configuration involves the use of two networks, a pre-existing one and one created at the moment via terraform. Both are used in the instance, but you can choose whether to disable one or both by removing out these lines in the instance.tf file.

...
network {
    name = "${var.existing_network}"
}
network {
	name = "${var.network_name}"
}
...

Also, to use the pre-existing network, make sure the network and subnet names in variables.tf file are correct.

...

# Public Network
variable "existnig_network" {
	default = "public"
}

variable "existing_subnet" {
	default = "public_subnet"
}
...

You can check your openstack network and subnet names via the commands:

$ openstack network list
$ openstack subnet list

Usage

In order to run an openstack server, you have to run this commands in the root project's directory:

• First of all, initialize the project

$ terraform init

• Generate a plan

$ terraform plan

• In the end, you have to apply the plan

$ terraform apply

You can delete your churros server running destroy.sh script

$ ./destroy.sh

If you want to improve this repo or create your own terraform project check this, it could be helpfull.