A JDK or JRE base image based on Eclipse Temurin and Alpine Linux.
See the image on Docker Hub.
The JRE image is intended to be used as a base image for running Java application images:
FROM njmittet/alpine-temurin:17-jre
USER root
ENV JAVA_DIR /opt/java
RUN mkdir -p $JAVA_DIR && \
adduser -D -h $JAVA_DIR java
USER java
WORKDIR $JAVA_DIR
COPY application.jar $JAVA_DIR
EXPOSE 9000
CMD ["java", "-jar", "application.jar"]The JDK image is intended to be used in the build stage of a multi-stage Docker build:
FROM njmittet/alpine-temurin:17-jdk AS builder
WORKDIR /tmp
RUN apk add --update git && \
git clone https://github.com/njmittet/demo-application.git && \
cd demo-application && \
./gradlew build
FROM njmittet/alpine-temurin:17-jre
USER root
ENV JAVA_DIR /opt/java
RUN mkdir -p $JAVA_DIR && \
adduser -D -h $JAVA_DIR java
USER java
WORKDIR $JAVA_DIR
COPY --from=builder /tmp/demo-application/build/libs/application.jar .
EXPOSE 8080
CMD ["java", "-jar", "application.jar"]