Anthos Baremetal on Packet

This is a very basic terraform template that will deploy N number of nodes (Defaults to 2) and configure a private vLan and IPs between these nodes using Packet's Mixed/Hybrid networking. This has been tested with Ubuntu 18.04 and CentOS7 and should work with: Ubuntu 16.04, CentOS 8, RHEL 7, & RHEL 8.

Install Terraform

Terraform is just a single binary. Visit their download page, choose your operating system, make the binary executable, and move it into your path.

Here is an example for macOS:

curl -LO https://releases.hashicorp.com/terraform/0.12.18/terraform_0.12.18_darwin_amd64.zip 
unzip terraform_0.12.18_darwin_amd64.zip 
chmod +x terraform 
sudo mv terraform /usr/local/bin/ 

Download this project

To download this project, run the following command:

git clone https://github.com/c0dyhi11/baremetal-anthos.git
cd baremetal-anthos

Initialize Terraform

Terraform uses modules to deploy infrastructure. In order to initialize the modules your simply run: terraform init. This should download modules into a hidden directory .terraform

Modify your variables

You will need to set three variables at a minimum and there are a lot more you may wish to modify in variables.tf

cat <<EOF >terraform.tfvars 
auth_token = "cefa5c94e8ee4577bff81d1edca93ed8" 
project_id = "42259e34-d300-48b3-b3e1-d5165cd14169" 
EOF 

Deploy terraform template

terraform apply --auto-approve

Once this is complete you should get output similar to this:

Apply complete! Resources: 5 added, 0 changed, 0 destroyed.

Outputs:

Hostnames = [
  "anthos-baremetal-01",
  "anthos-baremetal-02",
]
Public_IPs = [
  "147.75.69.143",
  "147.75.70.22",
]
Tags = [
  [
    "anthos",
    "baremetal",
    "192.168.1.1",
  ],
  [
    "anthos",
    "baremetal",
    "192.168.1.2",
  ],
]

Tested Operating Systems

Name	Api Slug
CentOS 7	centos_7
CentOS 8	centos_8
RedHat Enterprise Linux 7	rhel_7
RedHat Enterprise Linux 8	rhel_8
Ubuntu 16.04	ubuntu_16_04
Ubuntu 18.04	ubuntu_18_04
Ubutnu 20.04	ubuntu_20_04

Variables

Variable Name	Type	Default Value	Description
auth_token	string	n/a	Packet API Key
project_id	string	n/a	Packet Project ID
hostname	string	anthos-baremetal	The hostname for nodes
facility	string	sjc1	Packet Facility to deploy into
plan	string	c2.medium.x86	Packet device type to deploy
node_count	number	2	Number of baremetal nodes
operating_system	string	ubuntu_18_04	The Operating system of the node
billing_cycle	string	hourly	How the node will be billed (Not usually changed)
private_subnet	string	192.168.1.0/24	Private IP Space to use for Layer2

Testing script

I had the need to see if my terraform script would work on each operating system. So I wrote test_matrix.sh to handle this for me. This script has a bunch of operating systems in a list and will execute the terraform scripts into folder for each OS. The output of the terraform script is stored in that dedicated directory in a file called terraform.log.

To run this script simply do the following:

./test_matrix.sh apply

Once you are finished, you can tear it all down as follows:

./test_matrix.sh destroy

Enjoy!