ソース情報
- リポジトリ
- NeuralBlitz/Agent-Gateway
- ソースの最終更新活動
- 2026年4月9日 10:58
- 検出された SKILL.md の言語
- 英語
- スター
- 1
- フォーク
- 0
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SKILL.md
ソースの指示 · 読み取り専用プレビュー- name
- docker
- description
- Docker containerization best practices and patterns
- license
- MIT
- compatibility
- opencode
- metadata
- {"audience":"developers","category":"devops"}
## What I do
- Write efficient Dockerfiles using multi-stage builds
- Optimize image size with minimal base images
- Properly structure docker-compose configurations
- Implement health checks
- Use .dockerignore effectively
- Follow security best practices for containers
- Manage environment variables and secrets properly
## When to use me
When creating Dockerfiles, docker-compose files, or container-related configurations.
## Multi-stage Dockerfile
```dockerfile
# Builder stage
FROM python:3.11-slim-bookworm AS builder
WORKDIR /build
RUN apt-get update && apt-get install -y --no-install-recommends \
gcc \
&& rm -rf /var/lib/apt/lists/*
COPY requirements.txt .
RUN pip install --no-cache-dir --prefix=/install -r requirements.txt
# Runtime stage
FROM python:3.11-slim-bookworm AS runtime
WORKDIR /home/runner/workspace
COPY --from=builder /install /usr/local
COPY src/ ./src/
ENV PYTHONUNBUFFERED=1 \
PYTHONDONTWRITEBYTECODE=1
RUN addgroup --gid 1000 appgroup && \
adduser --uid 1000 --gid 1000 --shell /bin/bash appuser
USER appuser
EXPOSE 5000
HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
CMD python -c "import urllib.request; urllib.request.urlopen('http://localhost:5000/health')" || exit 1
CMD ["python", "src/main.py"]
```
## Docker Compose
```yaml
version: '3.8'
services:
app:
build:
context: .
dockerfile: Dockerfile
ports:
- "5000:5000"
environment:
- DATABASE_URL=postgres://user:pass@db:5432/app
- REDIS_URL=redis://cache:6379
depends_on:
db:
condition: service_healthy
cache:
condition: service_started
volumes:
- ./src:/home/runner/workspace/src
- app_data:/home/runner/workspace/data
networks:
- app_network
restart: unless-stopped
healthcheck:
test: ["CMD", "python", "-c", "import urllib.request; urllib.request.urlopen('http://localhost:5000/health')"]
interval: 30s
timeout: 10s
retries: 3
db:
image: postgres:15-alpine
environment:
POSTGRES_USER: user
POSTGRES_PASSWORD: pass
POSTGRES_DB: app
volumes:
- postgres_data:/var/lib/postgresql/data
healthcheck:
test: ["CMD-SHELL", "pg_isready -U user -d app"]
interval: 10s
timeout: 5s
retries: 5
cache:
image: redis:7-alpine
command: redis-server --appendonly yes
volumes:
- redis_data:/data
volumes:
postgres_data:
redis_data:
app_data:
networks:
app_network:
driver: bridge
```
## Security Best Practices
- Don't run as root
- Use specific tags, not :latest
- Scan images for vulnerabilities
- Don't include secrets in build context
- Use read-only filesystems where possible
- Limit capabilities
## Commands
```bash
# Build and run
docker build -t myapp:latest .
docker run -p 5000:5000 myapp:latest
# View logs and debug
docker compose logs -f
docker exec -it container_name bash
# Clean up
docker system prune -a
docker volume prune
```
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