Owncloud.YAML

version: "3.9"
services:
  redis:
    image: redis
    command:
      - /bin/sh
      - -c
      - redis-server --requirepass redispass
      - --databases 1
    container_name: ownCloud-REDIS
    hostname: owncloud-redis
    mem_limit: 256m
    mem_reservation: 50m
    cpu_shares: 768
    security_opt:
      - no-new-privileges:true
    read_only: true
    user: 1026:100
    healthcheck:
      test: ["CMD-SHELL", "redis-cli ping || exit 1"]
    volumes:
      - /volume1/docker/owncloud/redis:/data:rw
    environment:
      TZ: Europe/Bucharest
    restart: on-failure:5

  db:
    image: mariadb:11.3-jammy
    command: ["--max-allowed-packet=128M", "--innodb-log-file-size=64M"]
    container_name: ownCloud-DB
    hostname: owncloud-db
    mem_limit: 1g
    cpu_shares: 768
    security_opt:
      - no-new-privileges:true
    user: 1026:100
    volumes:
      - /volume1/docker/owncloud/db:/var/lib/mysql:rw
      - /volume1/docker/owncloud/db:/etc/mysql/conf.d:rw
    environment:
      TZ: Europe/Bucharest
      MYSQL_ROOT_PASSWORD: rootpass
      MYSQL_DATABASE: owncloud
      MYSQL_USER: ownclouduser
      MYSQL_PASSWORD: owncloudpass
    restart: on-failure:5

  owncloud:
    image: owncloud/server:latest
    container_name: ownCloud
    hostname: owncloud
    mem_limit: 4g
    cpu_shares: 768
    security_opt:
      - no-new-privileges:true
    healthcheck:
      test: ["CMD", "/usr/bin/healthcheck"]
      interval: 30s
      timeout: 10s
      retries: 5
    ports:
      - 4660:8080
    volumes:
      - /volume1/docker/owncloud/data:/mnt/data:rw
      - /etc/localtime:/etc/localtime:ro
    environment:
      OWNCLOUD_DOMAIN: localhost:8080
      OWNCLOUD_TRUSTED_DOMAINS: 192.168.1.18,owncloud.yourname.synology.me
      OWNCLOUD_DB_TYPE: mysql
      OWNCLOUD_DB_NAME: owncloud
      OWNCLOUD_DB_PREFIX: oc_
      OWNCLOUD_DB_USERNAME: ownclouduser
      OWNCLOUD_DB_PASSWORD: owncloudpass
      OWNCLOUD_DB_HOST: owncloud-db
      OWNCLOUD_ADMIN_USERNAME: marius
      OWNCLOUD_ADMIN_PASSWORD: mariushosting
      OWNCLOUD_MYSQL_UTF8MB4: true
      OWNCLOUD_REDIS_ENABLED: true
      OWNCLOUD_REDIS_HOST: owncloud-redis
      OWNCLOUD_REDIS_PASSWORD: redispass
# more ENV @ https://github.com/owncloud-docker/base/blob/master/ENVIRONMENT.md
    restart: on-failure:5
    depends_on:
      redis:
        condition: service_healthy
      db:
        condition: service_started


# Necessary edits to code
"user", "OWNCLOUD_TRUSTED_DOMAINS", "OWNCLOUD_ADMIN_USERNAME", "OWNCLOUD_ADMIN_PASSWORD" and "TZ"  have to be edited for every instance of installation and can be unique to every user 


# Timezone
TZ:
1. (eg. America/Phoenix for TZ). 

#IP
OWNCLOUD_TRUSTED_DOMAINS:
1.For this value, type in your NAS IP add a comma, and then add your synology.me DDNS without https:// at the beginning (eg. 192.168.1.18,owncloud.X.synology.me)

# Username
OWNCLOUD_ADMIN_USERNAME:
1. Type in own username.

#Password
OWNCLOUD_ADMIN_PASSWORD:
1. Type in own password.

# User
In order to find out the "user" value (which is composed of the User ID and Group ID in UID:GID format):
1. we needed to go to Control Panel/Task Scheduler/ Create/ Scheduled Task/ User-defined script.
2. Under the new window opened, there will be a 3 tabs (General, Schedule and Task Settings). 
3. Under General, the Task field should  be filled with “My UID and GID” and under User you should select your NAS user. 
4. In the next tab “Schedule” select “Run on the following date” and select today’s date then select “Do not repeat”, select a time to run it. 
5. On the next tab, “Task Settings” check the “Send run details by email” box and then add an email that can be reliably accessed.In the same tab, ad “id” as the user-defined script under the Run command section. 
6. After doing this, press okay. 
7. Go back to Control Panel/ Task Scheduler and select your newly created “My UID and GID” task then  click on the “Run” tab and confirm the run.
8. An email will be sent to the one used in the previous step with both UID and GID values alongside additional information.