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Configures containerization with Docker and Docker Compose for VanDaemon. Use when: building containers, configuring docker-compose, deploying to Docker environments, troubleshooting container networking, or setting up multi-container applications.
Codex または Claude でインストール この Prompt をコピーして Codex、Claude、または他のアシスタントに貼り付けると、Skill ページを確認してインストールできます。
SOC 職業分類に基づく
Builds REST APIs, SignalR hubs, and ASP.NET Core Web API applications. Use when: Creating controllers, configuring middleware, setting up dependency injection, implementing background services, or working with the API layer.
Develops Blazor WebAssembly single-page applications with component-based UI. Use when: Creating/modifying .razor components, managing component state, handling SignalR subscriptions, or working with MudBlazor UI components.
Writes C# code following VanDaemon conventions and clean architecture patterns Use when: Creating services, entities, controllers, or plugins in the VanDaemon codebase
Configures .NET 10 projects, builds, and manages C# runtime. Use when: building/running the solution, adding projects, managing NuGet packages, configuring Docker containers, or troubleshooting build issues.
Writes fluent, readable test assertions and validations using FluentAssertions library. Use when: Writing unit tests, validating service responses, asserting domain entity states, testing collections and async operations.
Applies UI design with Material Design components and SVG diagrams for the VanDaemon Blazor WebAssembly frontend. Use when: Creating new pages, styling components, designing dashboard overlays, implementing touch-friendly interfaces, or working with van diagram SVGs.
| name | docker |
| description | Configures containerization with Docker and Docker Compose for VanDaemon. Use when: building containers, configuring docker-compose, deploying to Docker environments, troubleshooting container networking, or setting up multi-container applications. |
| allowed-tools | Read, Edit, Write, Glob, Grep, Bash |
VanDaemon uses a multi-container architecture with separate API and Web containers for local development, plus a combined single-container deployment for Fly.io. The API runs on .NET 10, the Web frontend uses nginx to serve Blazor WASM static files and proxy API/WebSocket requests. Data persists via Docker volumes for JSON file storage.
# From solution root
docker compose up -d
# View logs
docker compose logs -f
# Rebuild after code changes
docker compose up --build
| Service | URL | Purpose |
|---|---|---|
| Web UI | http://localhost:8080 | Blazor WASM frontend |
| API | http://localhost:5000 | REST API + Swagger |
| Health | http://localhost:5000/health | Container health check |
| SignalR | ws://localhost:5000/hubs/telemetry | Real-time updates |
| Concept | Usage | Example |
|---|---|---|
| Multi-stage builds | Minimize image size | FROM sdk AS build → FROM aspnet AS final |
| Health checks | Container orchestration | HEALTHCHECK CMD curl /health |
| Volume mounts | Persist JSON data | api-data:/app/data |
| Bridge network | Inter-container comms | http://api:80 not localhost:5000 |
| Supervisor | Multi-process container | Combined nginx + API for Fly.io |
When: Containers need to communicate
# docker-compose.yml
services:
web:
depends_on:
api:
condition: service_healthy
# Use container name, not localhost
environment:
- API_BASE_URL=http://api:80
When: Data must survive container restarts
volumes:
api-data:
api-logs:
services:
api:
volumes:
- api-data:/app/data # JSON config files
- api-logs:/app/logs # Serilog output