My own version now

templates/NextCloud/0/docker-compose.yml

@@ -1,45 +1,40 @@
 version: '2'
 services:
   nextcloud:
-    image: nextcloud:12-apache
-    volumes_from:
-      - nextcloud-data
-    ports:
-      - ${NEXTCLOUD_PORT}:80
-    depends_on:
-      - mariadb
-    labels:
-      io.rancher.sidekicks: nextcloud-data
-      io.rancher.container.hostname_override: container_name
-
-  nextcloud-data:
-    image: nextcloud:12-apache
-    entrypoint:
-      - /bin/true
-    volumes:
-      - /var/www/html
-    labels:
-      io.rancher.container.start_once: 'true'
-      io.rancher.container.hostname_override: container_name
-
-  mariadb:
-    image: mariadb:10
+    image: nextcloud:stable-apache
     environment:
-      MYSQL_ROOT_PASSWORD: ${MYSQL_ROOT_PASS}
-      MYSQL_DATABASE: ${MYSQL_DATABASE}
-      MYSQL_USER: ${MYSQL_USER}
-      MYSQL_PASSWORD: ${MYSQL_PASS}
+      MYSQL_HOST: mysql
+      MYSQL_DATABASE: nextcloud
+      MYSQL_USER: nextcloud_user
+      MYSQL_PASSWORD: ${DB_USER_PASS}
+      NEXTCLOUD_ADMIN_USER: ${NC_ADMIN}
+      NEXTCLOUD_ADMIN_PASSWORD: ${NC_ADMIN_PASS}
     labels:
-      io.rancher.sidekicks: mariadb-data
-      io.rancher.container.hostname_override: container_name
-
-  mariadb-data:
-    image: mariadb:10
-    entrypoint:
-      - /bin/true
+      # io.rancher.container.hostname_override: container_name
+{{- if (.Values.HOST_LABEL)}}
+      io.rancher.scheduler.affinity:host_label: ${HOST_LABEL}
+{{- end}}
+    networks:
+      - nextcloud-net
+    ports:
+      - "${HOST_HTTP_PORT}:80"
+    restart: on-failure
     volumes:
-      - /var/lib/mysql
-    tty: true
+      - ${STORAGE_BASE_DIR}${APP_DIR}:/var/www/html
+      - ${STORAGE_BASE_DIR}${DATA_DIR}:/var/www/html/data
+  mysql:
+    image: mysql
+    environment:
+      MYSQL_DATABASE: nextcloud
+      MYSQL_ROOT_PASSWORD: ${DB_ROOT_PASS}
+      MYSQL_USER: nextcloud_user
+      MYSQL_PASSWORD: ${DB_USER_PASS}
     labels:
-      io.rancher.container.start_once: 'true'
-      io.rancher.container.hostname_override: container_name
+{{- if (.Values.HOST_LABEL)}}
+      io.rancher.scheduler.affinity:host_label: ${HOST_LABEL}
+{{- end}}
+    networks:
+      - nextcloud-net
+    restart: on-failure
+    volumes:
+      - ${STORAGE_BASE_DIR}${DB_DIR}:/var/lib/mysql

templates/NextCloud/0/rancher-compose.yml

@@ -1,6 +1,6 @@
 version: '2'
 catalog:
-  name: NextCloud
+  name: Nextcloud
   version: latest
   # description:
   # minimum_rancher_version:
@@ -8,44 +8,70 @@ catalog:
   # upgrade_from:
   questions:
 
-    - variable: NEXTCLOUD_PORT
-      label: Port
-      default: 80
-      required: true
-      type: int
+    - variable: HOST_LABEL
+      label: "Host Label Key/Value Pair"
+      description: |
+        The Label Key/Value pair on the host which containers should be deployed
+      default: "host.id=0000"
+      required: false
+      type: string
 
-    - variable: MYSQL_ROOT_PASS
-      label: MySQL root password
+    - variable: HOST_HTTP_PORT
+      label: Port
+      description: |
+        The HTTP port to access the web interface on.
+      default: "9000"
+      required: true
+      type: string
+
+    - variable: STORAGE_BASE_DIR
+      label: "Base Storage Directory"
+      description: |
+        The base path of where persistent storage should be kept at.
+      default: "/RancherStorage/Nextcloud"
+      required: true
+      type: string
+
+    - variable: APP_DIR
+      label: "Application Files Directory"
+      description: |
+        The folder for persistent logo files.
+      default: "/Nextcloud"
+      required: true
+      type: string
+
+    - variable: DATA_DIR
+      label: "User Data Directory"
+      description: |
+        The folder for persistent user data.
+      default: "/UserData"
+      required: true
+      type: string
+
+    - variable: DB_DIR
+      label: "Database Directory"
+      description: |
+        The folder for persistent database files.
+      default: "/Database"
+      required: true
+      type: string
+
+    - variable: DB_ROOT_PASS
+      label: "MySQL Root Password"
+      description: |
+        A secure password to be used by the "root" MySQL user.
       required: true
       type: password
 
-    - variable: MYSQL_DATABASE
-      default: nextcloud
-      label: MySQL Database
-      required: true
-      type: string
-
-    - variable: MYSQL_USER
-      default: nextcloud
-      label: MySQL User
-      required: true
-      type: string
-
-    - variable: MYSQL_PASS
-      label: MySQL Pass
+    - variable: DB_USER_PASS
+      label: "MySQL User Password"
+      description: |
+        A secure password to be used by the "nextcloud_user" MySQL user.
       required: true
       type: password
 
 services:
   nextcloud:
     scale: 1
-    start_on_create: true
-  nextcloud-data:
+  mysql:
     scale: 1
-    start_on_create: true
-  mariadb:
-    scale: 1
-    start_on_create: true
-  mariadb-data:
-    scale: 1
-    start_on_create: true