Inhaltsverzeichnis
Runbook: Docker
Duration: ~15 minutes
Role: DevOps, Developer
Prerequisite: Docker Engine 20+
Run Data Gateway as Docker container.
Workflow
flowchart TD
A[Start] --> B[Create Dockerfile]
B --> C[Build image]
C --> D[Start container]
D --> E[Health Check]
E --> F{OK?}
F -->|Yes| G[Done]
F -->|No| H[Check docker logs]
style G fill:#e8f5e9
style H fill:#ffebee
1. Dockerfile
# Dockerfile
FROM mcr.microsoft.com/dotnet/aspnet:8.0 AS runtime
WORKDIR /app
# Copy Gateway files
COPY publish/ .
# Non-root user
RUN useradd --system --no-create-home appuser
USER appuser
# Port
EXPOSE 5000
# Healthcheck
HEALTHCHECK --interval=30s --timeout=5s --start-period=10s --retries=3 \
CMD curl -f http://localhost:5000/health || exit 1
# Start
ENTRYPOINT ["dotnet", "WvdS.WebAPI.Data.Gateway.Api.dll"]
2. Build Image
# Build image docker build -t data-gateway:latest . # Tag image (for registry) docker tag data-gateway:latest registry.example.com/data-gateway:v3.0
3. Start Container
Simple start:
docker run -d \ --name gateway \ -p 5000:5000 \ -v $(pwd)/appsettings.json:/app/appsettings.json:ro \ -v $(pwd)/data:/app/data \ data-gateway:latest
With all options:
docker run -d \ --name gateway \ --restart unless-stopped \ -p 5000:5000 \ -v $(pwd)/config/appsettings.json:/app/appsettings.json:ro \ -v $(pwd)/data:/app/data \ -v $(pwd)/logs:/app/logs \ -e ASPNETCORE_ENVIRONMENT=Production \ -e TZ=Europe/Berlin \ --memory=512m \ --cpus=1 \ --health-cmd="curl -f http://localhost:5000/health || exit 1" \ --health-interval=30s \ data-gateway:latest
4. Docker Compose
# docker-compose.yml version: '3.8' services: gateway: image: data-gateway:latest build: context: . dockerfile: Dockerfile container_name: data-gateway restart: unless-stopped ports: - "5000:5000" volumes: - ./config/appsettings.json:/app/appsettings.json:ro - ./data:/app/data - gateway-logs:/app/logs environment: - ASPNETCORE_ENVIRONMENT=Production - TZ=Europe/Berlin deploy: resources: limits: memory: 512M cpus: '1' healthcheck: test: ["CMD", "curl", "-f", "http://localhost:5000/health"] interval: 30s timeout: 5s retries: 3 start_period: 10s networks: - gateway-net # Optional: Database for demo demo-db: image: postgres:16-alpine container_name: demo-db restart: unless-stopped environment: - POSTGRES_USER=gateway - POSTGRES_PASSWORD=gateway123 - POSTGRES_DB=demo volumes: - postgres-data:/var/lib/postgresql/data networks: - gateway-net volumes: gateway-logs: postgres-data: networks: gateway-net: driver: bridge
Start:
# Start all services docker-compose up -d # Show logs docker-compose logs -f gateway # Stop docker-compose down
5. Health Check
# Container status docker ps # Health status docker inspect --format='{{.State.Health.Status}}' gateway # API test curl http://localhost:5000/health curl http://localhost:5000/api/v1/dsn/demo/tables
6. Manage Container
| Command | Description |
| ——— | ————- |
docker start gateway | Start |
docker stop gateway | Stop |
docker restart gateway | Restart |
docker logs gateway | Show logs |
docker logs -f gateway | Live logs |
docker exec -it gateway sh | Shell in container |
7. Checklist
| # | Check | Done |
| — | ——- | —— |
| 1 | Dockerfile created | [ ] |
| 2 | Image built | [ ] |
| 3 | appsettings.json mounted | [ ] |
| 4 | Container started | [ ] |
| 5 | Health Check OK | [ ] |
| 6 | Logs without errors | [ ] |
Troubleshooting
| Problem | Cause | Solution |
| ——— | ——- | ———- |
Container won't start | Config error | docker logs gateway |
Port already in use | Host port taken | Use different port |
Permission denied | Volume permissions | chmod on host |
Cannot connect to DB | Network problem | Check Docker network |
Container shell for debugging:
# Shell in running container docker exec -it gateway sh # Or with bash (if available) docker exec -it gateway bash # Check files in container docker exec gateway ls -la /app/ docker exec gateway cat /app/appsettings.json
Multi-Stage Build (optimized)
# Multi-Stage Dockerfile FROM mcr.microsoft.com/dotnet/sdk:8.0 AS build WORKDIR /src COPY *.csproj . RUN dotnet restore COPY . . RUN dotnet publish -c Release -o /app/publish FROM mcr.microsoft.com/dotnet/aspnet:8.0 AS runtime WORKDIR /app COPY --from=build /app/publish . RUN useradd --system --no-create-home appuser USER appuser EXPOSE 5000 HEALTHCHECK --interval=30s --timeout=5s CMD curl -f http://localhost:5000/health || exit 1 ENTRYPOINT ["dotnet", "WvdS.WebAPI.Data.Gateway.Api.dll"]
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Wolfgang van der Stille @ EMSR DATA d.o.o. - Data Gateway Professional
Zuletzt geändert: on 2026/01/29 at 11:34 PM