nbs-pods 0.2.6

Containerized NBS (NIST Beamline Software) services for beamline simulation

NBS Pods

Containerized NBS (NIST Beamline Software) services for beamline simulation.

Container Images

This repository provides containerized NBS services that can be run in two modes:

Demo Mode (Pre-built Images)

Uses pre-built images from GitHub Container Registry (GHCR):

# Images are automatically built and pushed to:
# ghcr.io/xraygui/nbs-pods/bluesky:latest
# ghcr.io/xraygui/nbs-pods/nbs:latest  
# ghcr.io/xraygui/nbs-pods/nbs-gui:latest

Development Mode (Local Builds)

Build images locally for development:

# Build all images
podman-compose -f docker-compose.build.yml build

# Build specific image
podman-compose -f docker-compose.build.yml build nbs

# Rebuild with no caching
podman-compose -f docker-compose.build.yml build --no-cache nbs_gui

Image Dependencies

fedora → bluesky → nbs → nbs-gui

Usage

Demo Mode (Default)

# Start all services with pre-built images
./scripts/deploy.sh start

# Start specific services
./scripts/deploy.sh start gui queueserver

# Start demo services (bluesky-services, gui, queueserver, sim, viewer)
./scripts/deploy.sh demo

Development Mode

# Build images locally first
podman-compose -f docker-compose.build.yml build

# Start specific services in development mode
./scripts/deploy.sh start --dev gui

# Mix normal and development mode
./scripts/deploy.sh start queueserver --dev gui

Stopping Services

# Stop all services
./scripts/deploy.sh stop

# Stop specific services
./scripts/deploy.sh stop gui queueserver

Available Services

• bluesky-services: Core infrastructure (Redis, MongoDB, Kafka, ZMQ proxies)
• queueserver: RE Manager for experiment orchestration
• gui: NBS GUI with display protocol detection (Wayland/X11)
• sim: NBS simulation services
• viewer: Additional viewing services (if configured)

Development Workflow

Docker Compose Override System

The deployment system uses Docker Compose's override mechanism to enable flexible configuration:

1. Base Configuration: Each service has a main docker-compose.yml file with default settings
2. Override Files: docker-compose.override.yml files (if present) are automatically composed with the main file
3. Development Files: docker-compose.development.yml files are applied when using the --dev flag

Override Files (docker-compose.override.yml)

Override files allow local customization without modifying the base configuration:

• Testing: Override environment variables, ports, or volumes for testing
• Bug Fixes: Temporarily modify service parameters to work around issues
• GUI Configuration: Especially useful for display protocol issues (Wayland/X11)
• Local Paths: Mount local directories for configuration or data

Example override file:

services:
  qs-gui:
    volumes:
      - ${HOME}/local-config:/etc/bluesky
    environment:
      - DEBUG=true

Development Files (docker-compose.development.yml)

Development files are applied when using the --dev flag and typically:

• Switch to Local Images: Use locally built images instead of GHCR images
• Config Mounts: Mount configuration directories to test config changes
• Code Mounts: Mount local source code directories for live development
• Local Installs: Install packages from local paths with pip install -e
• Debug Settings: Enable debugging, logging, or development-specific configurations

Example development file which only mounts local config directories

services:
  qs-gui:
    volumes:
      - ${NBS_PODS_DIR}/config/bluesky:/etc/bluesky
      - ${BEAMLINE_PODS_DIR}/config/ipython:/usr/local/share/ipython
      - ${NBS_PODS_DIR}/config/tiled:/etc/tiled

Example development file which installs local code

services:
  nbs-sim:
    volumes:
      - ${NBSDIR}:/usr/local/src/xraygui
      - ${BEAMLINE_PODS_DIR}/config/ipython:/usr/local/share/ipython
    command: >
      bash -c "
        pip3 install --no-deps --no-build-isolation -e /usr/local/src/xraygui/nbs-sim/src &&
        nbs-sim --startup-dir /usr/local/share/ipython/profile_default/startup --list-pvs
      "

File Resolution Order

The system resolves compose files in this order:

1. Base service file (e.g., docker-compose.yml)
2. Override file (docker-compose.override.yml) - if present
3. Development file (docker-compose.development.yml) - if --dev flag used

Later files override earlier ones, allowing for flexible configuration management.

Configuration

Images include default configurations in /etc/bluesky and /etc/tiled/profiles which can be overridden with volume mounts in development mode.