Add Equinix Metal Terraform config

Used for a new blog post and the hosted Derek
service.

Signed-off-by: Alex Ellis (OpenFaaS Ltd) <alexellis2@gmail.com>

contrib/terraform-equinixmetal/.gitignore

@@ -0,0 +1,3 @@
+/main.tfvars
+/.terraform
+/*.tfstate

contrib/terraform-equinixmetal/example.main.tfvars

@@ -0,0 +1,8 @@
+auth_token   = "" // your Equinix Personal API Key
+project      = "" // your Equinix Project name
+name         = "derek"
+#domain      = "derek.example.com"
+#email       = ""
+metro        = "am"
+plan         = "c3.small.x86"
+ufw_enabled  = true

contrib/terraform-equinixmetal/main.tf

@@ -0,0 +1,31 @@
+terraform {
+  required_providers {
+    metal = {
+      source = "equinix/metal"
+    }
+  }
+}
+
+# Configure the Equinix Metal Provider.
+provider "metal" {
+  auth_token = var.auth_token
+}
+
+data "metal_project" "project" {
+  name = var.project
+}
+
+module "faasd" {
+  source = "github.com/jsiebens/terraform-equinix-faasd"
+
+  project_id = data.metal_project.project.id
+  name       = var.name
+  domain     = var.domain
+  email      = var.email
+
+  plan                = var.plan
+  metro               = var.metro
+  ufw_enabled         = var.ufw_enabled
+  project_ssh_key_ids = []
+}
+

contrib/terraform-equinixmetal/output.tf

@@ -0,0 +1,27 @@
+output "summary" {
+  value = <<CONFIGURATION
+
+Your faasd instance "${var.name} is ready.
+
+    IP Address: ${module.faasd.ipv4_address}
+    
+To continue, use the IP address above create a DNS A record for your domain "${var.domain}"
+Give Caddy a moment to get a certificate and when ready, the faasd gateway is available at:
+
+    ${module.faasd.gateway_url}
+
+Authenticate with faas-cli:
+
+    export PWD=$(terraform output -raw basic_auth_password)
+    export OPENFAAS_URL=${module.faasd.gateway_url}
+    echo $PWD | faas-cli login -u admin --password-stdin
+
+CONFIGURATION
+}
+
+output "basic_auth_password" {
+  description = "The basic auth password."
+  value       = module.faasd.basic_auth_password
+  sensitive   = true
+}
+

contrib/terraform-equinixmetal/variables.tf

@@ -0,0 +1,41 @@
+variable "auth_token" {
+  type = string
+}
+
+variable "project" {
+  type = string
+}
+
+variable "name" {
+  description = "The faasd device name."
+  type        = string
+}
+
+variable "domain" {
+  description = "A public domain for the faasd instance. This will the use of Caddy and a Let's Encrypt certificate"
+  type        = string
+}
+
+variable "email" {
+  description = "Email used to order a certificate from Let's Encrypt"
+  type        = string
+}
+
+variable "metro" {
+  description = "Metro area for the new faasd device."
+  type        = string
+  default     = "am"
+}
+
+variable "plan" {
+  description = "The faasd device plan slug."
+  type        = string
+  default     = "c3.small.x86"
+}
+
+variable "ufw_enabled" {
+  description = "Flag to indicate if UFW (Uncomplicated Firewall) should be enabled or not."
+  type        = bool
+  default     = true
+}
+