Dockerfile Best Practices
Java Spring Boot Application
# 多阶段构建
FROM maven:3.8-openjdk-17 AS build
WORKDIR /app
COPY pom.xml .
RUN mvn dependency:go-offline
COPY src ./src
RUN mvn clean package -DskipTests
FROM openjdk:17-jdk-slim WORKDIR /app COPY --from=build /app/target/*.jar app.jar EXPOSE 8080 ENTRYPOINT ["java", "-jar", "app.jar"]
## Docker Compose
```yaml
version: '3.8'
services:
app:
build: .
ports:
- "8080:8080"
environment:
- SPRING_PROFILES_ACTIVE=prod
depends_on:
- mysql
mysql:
image: mysql:8.0
environment:
- MYSQL_ROOT_PASSWORD=password
volumes:
- mysql_data:/var/lib/mysql
volumes:
mysql_data:
Common Commands
# 构建镜像
docker build -t myapp:latest .
# 运行容器
docker run -d -p 8080:8080 myapp:latest
# 查看日志
docker logs -f container_id
# 进入容器
docker exec -it container_id /bin/bash