fix: add required Redis service to Kener template

Kener v4 requires Redis for BullMQ background queues. Without it, the
application crashes on startup with 'REDIS_URL is not defined' error.

Changes:
- Add Redis 7 Alpine service with healthcheck
- Pin Kener image to v4.1.1 (was 'latest')
- Add REDIS_URL env var pointing to redis://redis:6379
- Remove unused postgres and mysql services (SQLite is the default)
- Remove unused env vars for removed DB services
- Use expose instead of ports (Dokploy convention)
- Add depends_on with service_healthy condition for Redis

Fixes https://github.com/Dokploy/templates/issues/976

blueprints/kener/docker-compose.yml

@@ -1,39 +1,39 @@
 version: "3.8"
 
 services:
+  redis:
+    image: redis:7-alpine
+    restart: unless-stopped
+    volumes:
+      - redis_data:/data
+    healthcheck:
+      test: ["CMD", "redis-cli", "ping"]
+      interval: 10s
+      timeout: 5s
+      retries: 5
+    expose:
+      - 6379
+
   kener:
-    image: rajnandan1/kener:latest
+    image: rajnandan1/kener:4.1.1
     environment:
       - TZ=${TZ}
       - KENER_SECRET_KEY=${KENER_SECRET_KEY} # 🔐 API key / secret
-      - DATABASE_URL=${DATABASE_URL}
-      - KENER_BASE_PATH=${KENER_BASE_PATH}
       - ORIGIN=${ORIGIN}
+      - REDIS_URL=${REDIS_URL}
+      - DATABASE_URL=${DATABASE_URL}
       - RESEND_API_KEY=${RESEND_API_KEY} # 🔐 API key
       - RESEND_SENDER_EMAIL=${RESEND_SENDER_EMAIL}
-    ports:
+    expose:
       - 3000
     volumes:
-      - kener_db:/app/database
+      - data:/app/database
       - ../files/uploads:/app/uploads
-    restart: unless-stopped
-
-  postgres:
-    image: postgres:alpine
-    environment:
-      - POSTGRES_USER=${POSTGRES_USER}
-      - POSTGRES_PASSWORD=${POSTGRES_PASSWORD} # 🔐 DB password
-      - POSTGRES_DB=${POSTGRES_DB}
-    restart: unless-stopped
-
-  mysql:
-    image: mariadb:11
-    environment:
-      - MYSQL_USER=${MYSQL_USER}
-      - MYSQL_PASSWORD=${MYSQL_PASSWORD} # 🔐 DB password
-      - MYSQL_DATABASE=${MYSQL_DATABASE}
-      - MYSQL_RANDOM_ROOT_PASSWORD=true
+    depends_on:
+      redis:
+        condition: service_healthy
     restart: unless-stopped
 
 volumes:
-  kener_db: {}
+  data:
+  redis_data:

blueprints/kener/meta.json

@@ -1,7 +1,7 @@
 {
   "id": "kener",
   "name": "Kener",
-  "version": "latest",
+  "version": "4.1.1",
   "description": "Kener is an open-source status page system for monitoring and alerting. It provides a modern interface for tracking service uptime and sending notifications.",
   "logo": "image.png",
   "links": {

blueprints/kener/template.toml

@@ -1,8 +1,6 @@
 [variables]
 main_domain = "${domain}"
 KENER_SECRET_KEY = "${password:64}"
-POSTGRES_PASSWORD = "${password:32}"
-MYSQL_PASSWORD = "${password:32}"
 
 [config]
 [[config.domains]]
@@ -13,24 +11,22 @@ host = "${main_domain}"
 [config.env]
 TZ = "Etc/UTC"
 KENER_SECRET_KEY = "${KENER_SECRET_KEY}" # 🔐 API key / secret
-DATABASE_URL = "sqlite://./database/kener.sqlite.db"
-KENER_BASE_PATH = ""
 ORIGIN = "http://localhost:3000"
+REDIS_URL = "redis://redis:6379"
+DATABASE_URL = "sqlite://./database/kener.sqlite.db"
 RESEND_API_KEY = ""
-RESEND_SENDER_EMAIL = "Accounts <accounts@resend.dev>"
-POSTGRES_USER = "user"
-POSTGRES_DB = "kener_db"
-MYSQL_USER = "user"
-MYSQL_DATABASE = "kener_db"
-MYSQL_RANDOM_ROOT_PASSWORD = "true"
-MYSQL_PASSWORD = "${MYSQL_PASSWORD}" # 🔐 DB password
-POSTGRES_PASSWORD = "${POSTGRES_PASSWORD}" # 🔐 DB password
+RESEND_SENDER_EMAIL = ""
 
 [[config.mounts]]
 type = "volume"
-source = "kener_db"
+source = "data"
 target = "/app/database"
 
+[[config.mounts]]
+type = "volume"
+source = "redis_data"
+target = "/data"
+
 [[config.mounts]]
 type = "bind"
 source = "../files/uploads"