add htpasswd auth to private docker registry + expose at registry.viktorbarzin.me

- Add auth.htpasswd section to config-private.yml
- Mount htpasswd file in registry-private container, fix healthcheck for 401
- Rename registry UI from registry.viktorbarzin.me → docker.viktorbarzin.me
- Add Docker CLI ingress at registry.viktorbarzin.me (HTTPS backend, no rate-limit, unlimited body)
- Add docker to cloudflare_proxied_names (registry stays non-proxied)
- Add Kyverno ClusterPolicy to sync registry-credentials secret to all namespaces
- Update infra provisioning to install apache2-utils and generate htpasswd from Vault

modules/docker-registry/config-private.yml

@@ -16,6 +16,10 @@ storage:
       age: 168h
       interval: 4h
       dryrun: false
+auth:
+  htpasswd:
+    realm: "Registry Realm"
+    path: /auth/htpasswd
 http:
   addr: :5000
   headers:

modules/docker-registry/docker-compose.yml

@@ -92,10 +92,12 @@ services:
     volumes:
       - /opt/registry/data/private:/var/lib/registry
       - /opt/registry/config-private.yml:/etc/docker/registry/config.yml:ro
+      - /opt/registry/htpasswd:/auth/htpasswd:ro
     networks:
       - registry
     healthcheck:
-      test: ["CMD", "sh", "-c", "wget -qO- http://localhost:5000/v2/ >/dev/null 2>&1"]
+      # 401 is expected (auth required) — any HTTP response means the registry is healthy
+      test: ["CMD", "sh", "-c", "wget -qS -O /dev/null http://localhost:5000/v2/ 2>&1 | grep -q 'HTTP/'"]
       interval: 30s
       timeout: 10s
       retries: 3

stacks/infra/main.tf

@@ -21,6 +21,11 @@ data "vault_kv_secret_v2" "secrets" {
   name  = "infra"
 }
 
+data "vault_kv_secret_v2" "viktor" {
+  mount = "secret"
+  name  = "viktor"
+}
+
 # ---------------------------------------------------------------------------
 # Locals
 # ---------------------------------------------------------------------------
@@ -176,8 +181,8 @@ module "docker-registry-template" {
 
   # Setup registry config and start container
   provision_cmds = [
-    # Install and enable QEMU guest agent for remote management
+    # Install dependencies (QEMU guest agent + htpasswd for registry auth)
-    "apt-get install -y qemu-guest-agent",
+    "apt-get install -y qemu-guest-agent apache2-utils",
     "systemctl enable qemu-guest-agent",
     "systemctl start qemu-guest-agent",
     # Stop host nginx — we run nginx inside Docker instead
@@ -185,6 +190,11 @@ module "docker-registry-template" {
     "systemctl disable nginx || true",
     # Create directory structure
     "mkdir -p /opt/registry/data/dockerhub /opt/registry/data/ghcr /opt/registry/data/quay /opt/registry/data/k8s /opt/registry/data/kyverno /opt/registry/data/private /opt/registry/tls",
+    # Generate htpasswd file for private registry authentication
+    format("htpasswd -Bbn %s %s > /opt/registry/htpasswd",
+      data.vault_kv_secret_v2.viktor.data["registry_user"],
+      data.vault_kv_secret_v2.viktor.data["registry_password"]
+    ),
     # Write Docker Compose file
     format("echo %s | base64 -d > /opt/registry/docker-compose.yml",
       base64encode(file("${path.root}/../../modules/docker-registry/docker-compose.yml"))

stacks/kyverno/modules/kyverno/registry-credentials.tf

@@ -0,0 +1,83 @@
+
+# =============================================================================
+# Private Docker Registry Credentials — Auto-sync to all namespaces
+# =============================================================================
+# Source secret in kyverno namespace, cloned by ClusterPolicy into every NS.
+# Pods use imagePullSecrets: [{name: registry-credentials}] to pull from
+# registry.viktorbarzin.me (or 10.0.20.10:5050 internally).
+
+data "vault_kv_secret_v2" "viktor" {
+  mount = "secret"
+  name  = "viktor"
+}
+
+resource "kubernetes_secret" "registry_credentials" {
+  metadata {
+    name      = "registry-credentials"
+    namespace = kubernetes_namespace.kyverno.metadata[0].name
+  }
+  type = "kubernetes.io/dockerconfigjson"
+  data = {
+    ".dockerconfigjson" = jsonencode({
+      auths = {
+        "registry.viktorbarzin.me" = {
+          auth = base64encode("${data.vault_kv_secret_v2.viktor.data["registry_user"]}:${data.vault_kv_secret_v2.viktor.data["registry_password"]}")
+        }
+        "10.0.20.10:5050" = {
+          auth = base64encode("${data.vault_kv_secret_v2.viktor.data["registry_user"]}:${data.vault_kv_secret_v2.viktor.data["registry_password"]}")
+        }
+      }
+    })
+  }
+}
+
+resource "kubernetes_manifest" "sync_registry_credentials" {
+  manifest = {
+    apiVersion = "kyverno.io/v1"
+    kind       = "ClusterPolicy"
+    metadata = {
+      name = "sync-registry-credentials"
+    }
+    spec = {
+      rules = [
+        {
+          name = "sync-registry-secret"
+          match = {
+            any = [
+              {
+                resources = {
+                  kinds = ["Namespace"]
+                }
+              }
+            ]
+          }
+          exclude = {
+            any = [
+              {
+                resources = {
+                  namespaces = ["kube-system", "kube-public", "kube-node-lease"]
+                }
+              }
+            ]
+          }
+          generate = {
+            apiVersion  = "v1"
+            kind        = "Secret"
+            name        = "registry-credentials"
+            namespace   = "{{request.object.metadata.name}}"
+            synchronize = true
+            clone = {
+              namespace = "kyverno"
+              name      = "registry-credentials"
+            }
+          }
+        }
+      ]
+    }
+  }
+
+  depends_on = [
+    helm_release.kyverno,
+    kubernetes_secret.registry_credentials,
+  ]
+}

stacks/reverse-proxy/modules/reverse_proxy/main.tf

@@ -186,10 +186,10 @@ module "proxmox" {
   }
 }
 
-# https://registry.viktorbarzin.me/
+# https://docker.viktorbarzin.me/ (registry web UI)
 module "docker-registry-ui" {
   source          = "./factory"
-  name            = "registry"
+  name            = "docker"
   external_name   = "docker-registry.viktorbarzin.lan"
   port            = 8080
   tls_secret_name = var.tls_secret_name
@@ -206,6 +206,25 @@ module "docker-registry-ui" {
   }
 }
 
+# https://registry.viktorbarzin.me/ (Docker CLI push/pull endpoint)
+module "docker-registry-cli" {
+  source           = "./factory"
+  name             = "registry"
+  external_name    = "docker-registry.viktorbarzin.lan"
+  port             = 5050
+  backend_protocol = "HTTPS"
+  tls_secret_name  = var.tls_secret_name
+  protected        = false    # Docker CLI uses htpasswd, NOT Authentik
+  max_body_size    = "0"      # unlimited - Docker layers can be large
+  depends_on       = [kubernetes_namespace.reverse-proxy]
+  extra_annotations = {
+    # Skip rate-limit (Docker push/pull generates many rapid requests)
+    # Keep CrowdSec for L7 protection
+    "traefik.ingress.kubernetes.io/router.middlewares" = "traefik-csp-headers@kubernetescrd,traefik-crowdsec@kubernetescrd"
+    "gethomepage.dev/enabled"                          = "false"
+  }
+}
+
 # https://valchedrym.viktorbarzin.me/
 module "valchedrym" {
   source            = "./factory"