Dockerfile

# Stage 1 - Build
FROM eclipse-temurin:21-jdk-alpine AS build

WORKDIR /app

COPY mvnw .
COPY .mvn .mvn
COPY pom.xml .

RUN chmod +x mvnw && ./mvnw dependency:go-offline -B

COPY src src

RUN ./mvnw clean package -DskipTests -B

# Stage 2 - Runtime
FROM eclipse-temurin:21-jre-alpine AS runtime

LABEL maintainer="felipementel" \
      description="CRUD de usuarios em Spring Boot com Ports and Adapters"

RUN addgroup -S appgroup && adduser -S appuser -G appgroup

WORKDIR /app

COPY --from=build /app/target/*.jar app.jar

RUN chown appuser:appgroup app.jar

USER appuser

EXPOSE 8080

HEALTHCHECK --interval=30s --timeout=5s --start-period=30s --retries=3 \
  CMD wget --no-verbose --tries=1 --spider http://localhost:8080/health/ready || exit 1

ENTRYPOINT ["java", "-jar", "app.jar"]