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Dockerfile and docker-compose authoring guide โ multi-stage builds, layer caching, security best practices, and compose service wiring.
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| name | docker |
| description | Dockerfile and docker-compose authoring guide โ multi-stage builds, layer caching, security best practices, and compose service wiring. |
FROM eclipse-temurin:21-jdk AS builder
WORKDIR /app
COPY gradlew settings.gradle.kts build.gradle.kts ./
COPY gradle gradle
RUN ./gradlew dependencies --no-daemon
COPY src src
RUN ./gradlew bootJar --no-daemon
FROM eclipse-temurin:21-jre
WORKDIR /app
COPY --from=builder /app/build/libs/*.jar app.jar
ENTRYPOINT ["java", "-jar", "app.jar"]
COPY dependency manifests first, run install, then COPY sourcelatestRUN adduser --disabled-password app && USER appCOPY . . before installing dependenciesservices:
app:
build: .
ports:
- "8080:8080"
environment:
SPRING_DATASOURCE_URL: jdbc:mysql://db:3306/mydb
depends_on:
db:
condition: service_healthy
db:
image: mysql:8.0
environment:
MYSQL_ROOT_PASSWORD: root
MYSQL_DATABASE: mydb
healthcheck:
test: ["CMD", "mysqladmin", "ping", "-h", "localhost"]
interval: 10s
retries: 5
.git
build/
.gradle/
*.log
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Conduct an in-depth structured interview with the user to uncover non-obvious requirements, tradeoffs, and constraints, then produce a detailed implementation spec file.
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