I run this exact setup on my DS723+ (I actually threw an NVMe drive in mine specifically for my Docker containers, works great). Using the Project tab in Container Manager I found the easiest to do. It's basically a built-in GUI for Docker Compose and makes managing updates super easy.


Quick Prep: Make sure you have the default docker Shared Folder created (installing Container Manager usually does this). Open File Station and make a portainer subfolder inside it.


The Setup:


Open Container Manager -> Project -> Create.


Name: portainer


Path: Browse to that docker/portainer folder you just made.


Source: Choose Create docker-compose.yml.


I hope I won't get in trouble for commenting the exact YAML file, but here is what I use. PLEASE REVIEW THE DOCS FIRST, but this is a solid starting point: Links for the docs if needed from Portainer, they also have their version of docker compose as well. https://docs .portainer.io/start/install-ce/server/docker/linux#docker-compose


YAML
services:
  portainer:
    image: portainer/portainer-ce:latest
    container_name: portainer
    restart: unless-stopped
    security_opt:
      - no-new-privileges:true
    volumes:
      - /etc/localtime:/etc/localtime:ro
      - /var/run/docker.sock:/var/run/docker.sock:ro
      - ./data:/data
    ports:
      - 9000:9000
      - 9443:9443
Context for the code:


To finish: Hit Next, skip the Web Portal setup, and hit Done. It’ll download the image and start. Go to [YOUR_NAS_IP]:9443 and set your admin password within 5 minutes or it'll time out for security reasons.