[ci skip] Move Terraform modules into stack directories

Move all 88 service modules (66 individual + 22 platform) from
modules/kubernetes/<service>/ into their corresponding stack directories:

- Service stacks: stacks/<service>/module/
- Platform stack: stacks/platform/modules/<service>/

This collocates module source code with its Terragrunt definition.
Only shared utility modules remain in modules/kubernetes/:
ingress_factory, setup_tls_secret, dockerhub_secret, oauth-proxy.

All cross-references to shared modules updated to use correct
relative paths. Verified with terragrunt run --all -- plan:
0 adds, 0 destroys across all 68 stacks.

stacks/platform/modules/cloudflared/cloudflare.tf

@@ -0,0 +1,159 @@
+# Contents for cloudflare account
+variable "cloudflare_api_key" {}
+variable "cloudflare_email" {}
+variable "cloudflare_proxied_names" { type = list(string) }
+variable "cloudflare_non_proxied_names" { type = list(string) }
+variable "cloudflare_zone_id" {
+  description = "Zone ID for your domain"
+  type        = string
+}
+variable "cloudflare_account_id" {
+  type      = string
+  sensitive = true
+}
+variable "cloudflare_tunnel_id" {
+  type      = string
+  sensitive = true
+}
+variable "public_ip" {
+  type = string
+}
+
+
+terraform {
+  required_providers {
+    cloudflare = {
+      source  = "cloudflare/cloudflare"
+      version = "~> 4"
+
+    }
+  }
+}
+provider "cloudflare" {
+  api_key = var.cloudflare_api_key # I gave up on getting the permissions on the token...
+  email   = var.cloudflare_email
+}
+
+
+locals {
+  cloudflare_proxied_names_map = {
+    for h in var.cloudflare_proxied_names :
+    h => h
+  }
+  cloudflare_non_proxied_names_map = {
+    for h in var.cloudflare_non_proxied_names :
+    h => h
+  }
+}
+
+resource "cloudflare_zero_trust_tunnel_cloudflared_config" "sof" {
+  account_id = var.cloudflare_account_id
+  tunnel_id  = var.cloudflare_tunnel_id
+
+  config {
+    warp_routing {
+      enabled = true
+    }
+    dynamic "ingress_rule" {
+      for_each = toset(var.cloudflare_proxied_names)
+      content {
+        hostname = ingress_rule.value == "viktorbarzin.me" ? ingress_rule.value : "${ingress_rule.value}.viktorbarzin.me"
+        path     = "/"
+        service  = "https://10.0.20.202:443"
+        origin_request {
+          no_tls_verify = true
+        }
+      }
+    }
+    ingress_rule {
+      service = "http_status:404"
+    }
+  }
+}
+
+resource "cloudflare_record" "dns_record" {
+  # count   = length(var.cloudflare_proxied_names)
+  # name    = var.cloudflare_proxied_names[count.index]
+  for_each = local.cloudflare_proxied_names_map
+  name     = each.key
+
+  content = "${var.cloudflare_tunnel_id}.cfargotunnel.com"
+  proxied = true
+  ttl     = 1
+  type    = "CNAME"
+  zone_id = var.cloudflare_zone_id
+}
+
+resource "cloudflare_record" "non_proxied_dns_record" {
+  # count = length(var.cloudflare_non_proxied_names)
+  # name    = var.cloudflare_non_proxied_names[count.index]
+  for_each = local.cloudflare_non_proxied_names_map
+  name     = each.key
+
+  # content = var.non_proxied_names[count.index].ip
+  content = var.public_ip
+  proxied = false
+  ttl     = 1
+  type    = "A"
+  zone_id = var.cloudflare_zone_id
+}
+
+
+resource "cloudflare_record" "mail" {
+  content  = "mail.viktorbarzin.me"
+  name     = "viktorbarzin.me"
+  proxied  = false
+  ttl      = 1
+  type     = "MX"
+  priority = 1
+  zone_id  = var.cloudflare_zone_id
+}
+
+resource "cloudflare_record" "mail_domainkey" {
+  content  = "\"k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDIDLB8mhAHNqs1s6GeZMQHOxWweoNKIrqo5tqRM3yFilgfPUX34aTIXNZg9xAmlK+2S/xXO1ymt127ZGMjnoFKOEP8/uZ54iHTCnioHaPZWMfJ7o6TYIXjr+9ShKfoJxZLv7lHJ2wKQK3yOw4lg4cvja5nxQ6fNoGRwo+mQ/mgJQIDAQAB\""
+  name     = "s1._domainkey.viktorbarzin.me"
+  proxied  = false
+  ttl      = 1
+  type     = "TXT"
+  priority = 1
+  zone_id  = var.cloudflare_zone_id
+}
+
+resource "cloudflare_record" "mail_spf" {
+  content  = "\"v=spf1 include:mailgun.org ~all\""
+  name     = "viktorbarzin.me"
+  proxied  = false
+  ttl      = 1
+  type     = "TXT"
+  priority = 1
+  zone_id  = var.cloudflare_zone_id
+}
+
+resource "cloudflare_record" "mail_dmarc" {
+  content  = "\"v=DMARC1; p=none; pct=100; fo=1; ri=3600; sp=none; adkim=r; aspf=r; rua=mailto:e21c0ff8@dmarc.mailgun.org,mailto:adb84997@inbox.ondmarc.com; ruf=mailto:e21c0ff8@dmarc.mailgun.org,mailto:adb84997@inbox.ondmarc.com,mailto:postmaster@viktorbarzin.me;\""
+  name     = "_dmarc.viktorbarzin.me"
+  proxied  = false
+  ttl      = 1
+  type     = "TXT"
+  priority = 1
+  zone_id  = var.cloudflare_zone_id
+}
+
+resource "cloudflare_record" "keyserver" {
+  content  = "130.162.165.220" # Oracle VPS
+  name     = "keyserver.viktorbarzin.me"
+  proxied  = false
+  ttl      = 3600
+  type     = "A"
+  priority = 1
+  zone_id  = var.cloudflare_zone_id
+}
+
+# Enable HTTP/3 (QUIC) for Cloudflare-proxied domains
+resource "cloudflare_zone_settings_override" "http3" {
+  zone_id = var.cloudflare_zone_id
+
+  settings {
+    http3 = "on"
+  }
+}

stacks/platform/modules/cloudflared/main.tf

@@ -0,0 +1,90 @@
+# Contents for cloudflare tunnel
+
+variable "tls_secret_name" {}
+variable "cloudflare_tunnel_token" {}
+resource "kubernetes_namespace" "cloudflared" {
+  metadata {
+    name = "cloudflared"
+    labels = {
+      tier = var.tier
+    }
+  }
+}
+variable "tier" { type = string }
+
+module "tls_secret" {
+  source          = "../../../../modules/kubernetes/setup_tls_secret"
+  namespace       = kubernetes_namespace.cloudflared.metadata[0].name
+  tls_secret_name = var.tls_secret_name
+}
+
+resource "kubernetes_deployment" "cloudflared" {
+  metadata {
+    name      = "cloudflared"
+    namespace = kubernetes_namespace.cloudflared.metadata[0].name
+    labels = {
+      app  = "cloudflared"
+      tier = var.tier
+    }
+    annotations = {
+      "reloader.stakater.com/search" = "true"
+    }
+  }
+  spec {
+    replicas = 3
+    strategy {
+      type = "RollingUpdate"
+    }
+    selector {
+      match_labels = {
+        app = "cloudflared"
+      }
+    }
+    template {
+      metadata {
+        labels = {
+          app = "cloudflared"
+        }
+      }
+      spec {
+        container {
+          # image = "wisdomsky/cloudflared-web:latest"
+          image   = "cloudflare/cloudflared"
+          name    = "cloudflared"
+          command = ["cloudflared", "tunnel", "run"]
+          env {
+            name  = "TUNNEL_TOKEN"
+            value = var.cloudflare_tunnel_token
+          }
+
+          port {
+            container_port = 14333
+          }
+        }
+      }
+    }
+  }
+}
+
+resource "kubernetes_service" "cloudflared" {
+  metadata {
+    name      = "cloudflared"
+    namespace = kubernetes_namespace.cloudflared.metadata[0].name
+    labels = {
+      "app" = "cloudflared"
+    }
+  }
+
+  spec {
+    selector = {
+      app = "cloudflared"
+    }
+    port {
+      name        = "http"
+      target_port = 14333
+      port        = 80
+      protocol    = "TCP"
+    }
+  }
+}
+