113 lines
3.1 KiB
HCL
113 lines
3.1 KiB
HCL
// Cloudflare Tunnel module
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// This module creates a Cloudflare tunnel and deploys a cloudflared container
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terraform {
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required_providers {
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cloudflare = {
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source = "cloudflare/cloudflare"
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}
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random = {
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source = "hashicorp/random"
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}
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}
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}
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// Generate a random secret for the tunnel if none provided
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resource "random_id" "tunnel_secret" {
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count = var.tunnel_secret == "" ? 1 : 0
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byte_length = 35
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}
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// Create the Cloudflare Tunnel
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resource "cloudflare_zero_trust_tunnel_cloudflared" "this" {
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account_id = var.cloudflare_account_id
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name = var.tunnel_name
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secret = var.tunnel_secret != "" ? var.tunnel_secret : random_id.tunnel_secret[0].b64_std
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}
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locals {
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// Transform service definitions into ingress rules format, only for services with ingress_enabled
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service_ingress_rules = flatten([
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for service in var.service_definitions :
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// Only process services with subdomains AND where ingress is enabled (or default to true for backward compatibility)
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(length(service.subdomains) > 0) ? [
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for subdomain in service.subdomains : {
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hostname = "${subdomain}.${var.domain}"
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service = service.endpoint
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}
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] : []
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])
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// Combine manual ingress rules and service-generated ones
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all_ingress_rules = concat(
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[for rule in var.ingress_rules : rule if rule != null],
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local.service_ingress_rules
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)
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}
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// Configure tunnel routing
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resource "cloudflare_zero_trust_tunnel_cloudflared_config" "this" {
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account_id = var.cloudflare_account_id
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tunnel_id = cloudflare_zero_trust_tunnel_cloudflared.this.id
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config {
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// Add all service ingress rules
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dynamic "ingress_rule" {
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for_each = local.all_ingress_rules
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content {
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hostname = ingress_rule.value.hostname
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service = ingress_rule.value.service
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}
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}
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// Default catch-all rule (required)
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ingress_rule {
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service = "http_status:404"
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}
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}
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}
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// Create DNS record for each service
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resource "cloudflare_record" "service" {
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for_each = {
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for rule in local.all_ingress_rules : rule.hostname => rule
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if rule.hostname != null && rule.hostname != ""
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}
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zone_id = var.cloudflare_zone_id
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name = split(".", each.value.hostname)[0] // Extract subdomain
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content = "${cloudflare_zero_trust_tunnel_cloudflared.this.id}.cfargotunnel.com"
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type = "CNAME"
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proxied = true
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}
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// Set up the Docker container
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locals {
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container_name = var.container_name != "" ? var.container_name : "cloudflared-${var.tunnel_name}"
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image_tag = var.image_tag != "" ? var.image_tag : "latest"
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}
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module "cloudflared" {
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source = "../../10-services-generic/docker-service"
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container_name = var.container_name
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image = "cloudflare/cloudflared"
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tag = local.image_tag
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// Environment variables with tunnel token
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env_vars = {
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TUNNEL_TOKEN = cloudflare_zero_trust_tunnel_cloudflared.this.tunnel_token
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}
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// Command to run tunnel
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command = ["tunnel", "--no-autoupdate", "run"]
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// Restart policy
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restart_policy = "unless-stopped"
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// Enable monitoring for the container via Watchtower if specified
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monitoring = var.monitoring
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networks = var.networks
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}
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