CasaIMG Project

This project aims to deliver CasaOS (https://github.com/IceWhaleTech/CasaOS) as a docker container.

Prerequisites

• Docker must be installed on the host (works on Windows and Linux host)
• At least 150MB of RAM

Getting Started

The image is now available on DockerHub! You can either pull the official image or build it yourself.

Pull from DockerHub

docker pull nasselle/casa-img:latest

Running the Container

Example: Running from Docker Command Line

docker run -d \
    -p 8080:8080 \
    -e REF_NET=meta \  # optional, the network to attach the container created by CasaIMG
    -e REF_PORT=80 \  # optional, the published port for the WEB-UI of a new container installation
    -e REF_DOMAIN=nas.localhost \  # optional, the published hostname for the WEB-UI of a new container installation
    -e DATA_ROOT=/c/DATA \  # mandatory, path where the data are located (Windows /c/path/DATA or Linux /path/DATA)
    -e USER=admin:password \  # optional, automatically register user with specified credentials
    -v C:\DATA:/DATA \  # mandatory, where persistent data and app volume will be stored
    -v /var/run/docker.sock:/var/run/docker.sock \  # mandatory, allows CasaIMG to control the docker host
    --name casaimg nasselle/casa-img:latest

Example: Docker Compose

Create a docker-compose.yml file with the following content:

services:
  casaimg:
    image: nasselle/casa-img:latest
    ports:
      - "8080:8080"
    environment:
      REF_NET: meta  # optional
      REF_PORT: 80  # optional
      REF_DOMAIN: nas.localhost  # optional
      DATA_ROOT: /c/DATA  # mandatory, path where the data are located (Windows /c/DATA or Linux /path/DATA)
      USER: "admin:password"  # optional, automatically register user with specified credentials
    volumes:
      - C:\DATA:/DATA  # mandatory, where persistent data and app volume will be stored
      - /var/run/docker.sock:/var/run/docker.sock  # mandatory, allows CasaIMG to control the docker host

To start the service with Docker Compose, run:

docker-compose up -d

Access the Web Interface

Once the container is running, open http://localhost:8080 in your browser to access the web interface.

Network Configuration

CasaIMG provides environment variables to configure how new containers started by CasaOS can be accessed. This is particularly useful when running your NAS behind a router and want to make services accessible.

Environment Variables

Variable	Description	Example	Default
REF_NET	Docker network to attach new containers to	meta	bridge
REF_PORT	Default published port for container web interfaces	80	Container's default
REF_DOMAIN	Base domain for automatic subdomain generation	domain.com	none

Domain Configuration Example

When REF_DOMAIN is set, CasaOS automatically assigns subdomains to new containers using the pattern: {container-name}.{domain}.

For example, with REF_DOMAIN=domain.com:

nginx container  → nginx.domain.com
plex container  → plex.domain.com
nextcloud container → nextcloud.domain.com

Common Setup Scenarios

1. Behind a Reverse Proxy (Recommended)

services:
  casaimg:
    environment:
      REF_DOMAIN: "mydomain.com"  # All apps will get a subdomain under mydomain.com
      REF_NET: "proxy"            # Attach to your reverse proxy network
      REF_PORT: "443"              # Default HTTPS port (configure you proxy to handle https requests)

Configure your reverse proxy (like Traefik, Nginx Proxy Manager) to handle *.mydomain.com.

2Local Network Only

services:
  casaimg:
    environment:
      REF_DOMAIN: "nas.local"    # Local domain for LAN access -> will gives nginx.nas.local
      REF_PORT: "80"             # Default HTTP port

Notes

• When using domains, ensure your DNS or reverse proxy is properly configured to route traffic to the correct containers
• The domain feature works best with a reverse proxy that supports automatic SSL certificate generation
• If no domain is specified, containers will be accessible via IP:PORT
• REF_PORT defines the default external port for web interfaces of new containers
• Container-specific ports can still be configured individually through CasaOS interface

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Development Setup

Repository Structure

This project uses modified versions of the CasaOS repositories to add features useful for the Docker image, such as domain/port/network support configured by environment variables. If you want to use the original CasaOS project, you can change the submodules to point directly to the original repositories:

Example:

# Modified version (current)
https://github.com/worph/CasaOS-MessageBus.git

# Original version
https://github.com/IceWhaleTech/CasaOS-MessageBus.git

Clone the Repository

Option 1: Fresh clone (recommended)

git clone --recurse-submodules --remote-submodules https://github.com/worph/casa-img.git
cd casa-img

Option 2: If already cloned

git submodule update --init --recursive

Configure Git Submodules

Run these commands once to properly configure submodule handling:

# Configure submodule behavior
git config submodule.recurse true
git config push.recurseSubmodules check
git config submodule.recurseSubmodules true

# Update all submodules to their correct branches
git submodule update --init --recursive --merge

# to cleanup (reset) the submodule
git submodule deinit -f .
git submodule update --init --recursive

Build the Image

npx dockflow build

Submodule Versions

Submodule Versions

This project integrates various CasaOS components as submodules. Each submodule is tracked at a specific version to ensure stability and compatibility.

Component	Branch	Version	Upstream Repository
CasaOS	main	v0.4.13	IceWhaleTech/CasaOS
CasaOS-AppManagement	casa-img		IceWhaleTech/CasaOS-AppManagement
CasaOS-AppStore	main	no version	IceWhaleTech/CasaOS-AppStore
CasaOS-Gateway	main	v0.4.8	IceWhaleTech/CasaOS-Gateway
CasaOS-LocalStorage	main	v0.4.5-2	IceWhaleTech/CasaOS-LocalStorage
CasaOS-MessageBus	main	v0.4.5	IceWhaleTech/CasaOS-MessageBus
CasaOS-UI	casa-img		IceWhaleTech/CasaOS-UI
CasaOS-UserService	casa-img		IceWhaleTech/CasaOS-UserService
CasaOS-CLI	main	v0.4.4	IceWhaleTech/CasaOS-CLI

Support

Need help? Join our Discord community: https://discord.gg/QJyuNDXuFa