Docker¶

Images¶

Image	Description	Base
`ghcr.io/stefanposs/file-flux/backend`	API + WebSocket server	`alpine:3.19`
`ghcr.io/stefanposs/file-flux/frontend`	Nginx serving static UI	`nginx:alpine`
`ghcr.io/stefanposs/file-flux/agent`	Endpoint agent	`alpine:3.19`

Docker Compose Services¶

services:
  db:
    image: postgres:16-alpine
    volumes: [postgres-data:/var/lib/postgresql/data]

  backend:
    build: ./backend
    ports: ["3001:3001", "3002:3002"]
    depends_on: [db]

  frontend:
    build: ./frontend
    ports: ["3000:80"]

  agent-central:
    build: ./agent
    depends_on: [backend]

Building Images¶

# Build all images
just docker-build

# Build specific service
docker compose build backend

Production Compose¶

Use the production overlay for hardened settings:

docker compose -f docker-compose.yml -f docker-compose.production.yml up -d

Volumes¶

Volume	Purpose
`postgres-data`	Database persistence
`file-storage`	File transfer storage

Networking¶

All services communicate on internal Docker network. Only exposed ports:

3000 — Frontend (HTTP)
3001 — Backend REST API
3002 — Backend WebSocket

Datenbank nicht exponieren

PostgreSQL sollte in Produktion nicht nach außen erreichbar sein. Port 5432 wird nur im Docker-Netzwerk bereitgestellt.