Manual Builds

You can build all ncclient binaries, the Windows tray app, the Windows MSI, and the Docker images locally without using GitHub Actions.

ncclient CLI (standalone binary)

The CLI is built with PyInstaller from client/binaries/. Python 3.11 is used in CI.

Same platform (Linux x86_64, Windows x86_64, macOS)

From the repository root:

pip install -r client/binaries/requirements.txt
pip install -r client/requirements.txt
cd client/binaries
python build.py

Output: client/binaries/dist/ncclient (or ncclient.exe on Windows). Use python build.py --clean to remove build artifacts; python build.py --test to build and run basic tests.

Linux ARM64

CI builds Linux ARM64 in a Docker container because the host runner is x86_64. Locally you can do the same:

docker run --rm --platform linux/arm64 \
  -v "$(pwd):/work" -w /work/client/binaries \
  python:3.11-slim \
  bash -c "
    apt-get update && apt-get install -y binutils &&
    pip install --upgrade pip &&
    pip install -r requirements.txt &&
    pip install -r ../requirements.txt &&
    python build.py
  "

The executable will be in client/binaries/dist/ncclient (arm64). Run this from the repo root so $(pwd) mounts the full tree.

Windows ARM64

On a Windows ARM64 machine (or with an ARM64 Python), install dependencies and run python build.py in client/binaries. To force PyInstaller to target ARM64 from an x64 host, set PYINSTALLER_TARGET_ARCH=arm64 in the environment when running build.py (CI does this for the Windows ARM64 matrix; GitHub does not provide Windows ARM64 runners, so this is for local use only).

Windows tray app

From the repository root:

pip install -r client/requirements.txt
pip install -r client/windows/requirements.txt
pip install pyinstaller
cd client/windows
python build.py

Output: client/windows/dist/ncclient-tray.exe. The build can optionally bundle the Nebula Windows binary; see client/windows/README.md and build.py for details.

Windows MSI

The MSI installs the ncclient CLI and the tray app. You need both executables and WiX 5.

1. Get the two executables – Build as above or download from a release. Copy them into installer/windows/redist/:

   • redist/ncclient.exe (from client/binaries/dist/ncclient.exe)
   • redist/ncclient-tray.exe (from client/windows/dist/ncclient-tray.exe)

2. Install WiX 5 – e.g. dotnet tool install --global wix --version 5.0.2. Add the Util extension once:

   wix extension add -g WixToolset.Util.wixext/5.0.0
   

3. Build the MSI – From installer/windows/:

   wix build Product.wxs -ext WixToolset.Util.wixext -o NebulaCommander-windows-amd64.msi -d Version=0.1.12 -arch x64
   

   Replace 0.1.12 with the version you are building.

Output: NebulaCommander-windows-amd64.msi.

Docker

Backend and frontend (compose)

From the repository root:

cd docker
docker compose build

This builds the backend and frontend images with default build-args. No Keycloak image is built by default; use the Keycloak Dockerfile separately if needed.

Backend image (docker build)

From the repository root:

docker build -f docker/backend/Dockerfile -t nebula-commander-backend:local .

Optional build-args: VERSION (default latest), NEBULA_VERSION (default 1.8.2).

Frontend image (docker build)

From the repository root:

docker build -f docker/frontend/Dockerfile -t nebula-commander-frontend:local .

Build-args:

• VERSION – Version tag used when downloading ncclient binaries (default latest).
• DOWNLOAD_BINARIES – Set to 1 to download ncclient binaries from GitHub releases (by version) into the image; set to 0 (default) for local builds that do not need bundled binaries.

Example with version and binaries:

docker build -f docker/frontend/Dockerfile \
  --build-arg VERSION=0.1.12 \
  --build-arg DOWNLOAD_BINARIES=1 \
  -t nebula-commander-frontend:0.1.12 .

Keycloak image

From the repository root:

docker build -f docker/keycloak/Dockerfile -t nebula-commander-keycloak:local .

No required build-args. For the nebula login background, ensure nebula-bg.webp exists under docker/keycloak-theme/nebula/login/resources/img/ (or copy from frontend/public/nebula-bg.webp) before building.

Multi-architecture (Buildx)

To build for linux/amd64 and linux/arm64 and push (e.g. to GHCR):

docker buildx build --platform linux/amd64,linux/arm64 \
  -f docker/backend/Dockerfile \
  -t ghcr.io/nixrtr/nebula-commander-backend:latest \
  --build-arg VERSION=latest \
  --push .

Use the same pattern for the frontend (with VERSION and DOWNLOAD_BINARIES as needed) and keycloak Dockerfiles.