epicsoft/openjdk repository overview

⁠OpenJDK

This Docker image is managed and kept up to date by epicsoft LLC⁠.

Java OpenJDK-JDK and -JRE Docker images based on official images.

• Base image for OpenJDK-JDK: https://hub.docker.com/_/docker⁠
• Base image for OpenJDK-JRE: https://hub.docker.com/_/alpine⁠
• Dockerfiles: https://gitlab.com/epicsoft-networks/openjdk/tree/main⁠
• Repository: https://gitlab.com/epicsoft-networks/openjdk/tree/main⁠
• Container-Registry: https://gitlab.com/epicsoft-networks/openjdk/container_registry⁠
• Docker Hub: https://hub.docker.com/r/epicsoft/openjdk⁠

⁠OpenJDK-JDK

OpenJDK-JDK based on official image Docker in Docker (DinD) and indirectly on Alpine Linux.
This image is intended for building and can be used in a pipeline.

⁠OpenJDK-JRE

OpenJDK-JRE based on official images Alpine Linux.
This image is for the runtime environment.

⁠Versions

jdk jdk25 jdk25.0.3 jdk25-latest jdk-latest
based on Docker DinD indirectly on Alpine with Java JDK 25 - build weekly

jre jre25 jre25.0.3 jre25-latest jre-latest latest
based on Alpine image with Java JRE 25 - build weekly

jdk jdk21 jdk21.0.11 jdk21-latest
based on Docker DinD indirectly on Alpine with Java JDK 21 - build weekly

jre jre21 jre21.0.11 jre21-latest
based on Alpine image with Java JRE 21 - build weekly

jdk17 jdk17.0.19 jdk17-latest
based on Docker DinD indirectly on Alpine with Java JDK 17 - build weekly

jre17 jre17.0.19 jre17-latest
based on Alpine image with Java JRE 17 - build weekly

jdk11 jdk11.0.31 jdk11-latest
based on Docker DinD indirectly on Alpine with Java JDK 11 - build weekly

jre11 jre11.0.31 jre11-latest
based on Alpine image with Java JRE 11 - build weekly

For older versions see subdirectories

• OpenJDK 25 JDK & JRE - https://gitlab.com/epicsoft-networks/openjdk/tree/main/openjdk25⁠
• OpenJDK 21 JDK & JRE - https://gitlab.com/epicsoft-networks/openjdk/tree/main/openjdk21⁠
• OpenJDK 17 JDK & JRE - https://gitlab.com/epicsoft-networks/openjdk/tree/main/openjdk17⁠
• OpenJDK 11 JDK & JRE - https://gitlab.com/epicsoft-networks/openjdk/tree/main/openjdk11⁠

⁠Additional Alpine packages

Alpine packages are installed in the current image in the latest version - https://pkgs.alpinelinux.org/packages⁠

• ca-certificates (JDK & JRE)
• ttf-dejavu (JDK & JRE)
• ttf-liberation (JDK & JRE)
• jq (only JDK)

⁠Examples

⁠Example usage for GitLab CI/CD

Build a Java Gradle project in GitLab CI/CD pipeline

.gitlab-ci.yml

stages:
  - build

variables:
  VERSION: "1.0.0" 

exampleProjectBuild:
  stage: build
  image: epicsoft/openjdk:jdk-latest
  services:
    - docker:dind
  variables:
    DOCKER_IMAGE: $CI_REGISTRY:$VERSION
    JAVA_JAR_PATH: build/libs
  before_script:
    - docker login -u gitlab-ci-token -p $CI_JOB_TOKEN $CI_REGISTRY
  after_script:
    - docker logout $CI_REGISTRY
  script:
    - ./gradlew build --warning-mode all
    - docker build -t $DOCKER_IMAGE . --build-arg JAR_FILE=$JAVA_JAR_PATH/exampleProject-${VERSION}.jar --build-arg VERSION=$VERSION --build-arg BUILD_DATE=$(date -u +'%Y-%m-%dT%H:%M:%SZ')
    - docker push $DOCKER_IMAGE

⁠Example usage for Dockerfile

FROM epicsoft/openjdk:jre-latest

ARG VERSION="development"
ARG BUILD_DATE="development"
LABEL org.label-schema.name="exampleProject" \
      org.label-schema.description="Example project" \
      org.label-schema.version="$VERSION" \
      org.label-schema.schema-version="1.0" \
      org.label-schema.build-date="$BUILD_DATE"

ENV JAVA_SERVER="-server" \
    JAVA_DOCKER="-XX:+UseContainerSupport -XX:MaxRAMPercentage=80" \
    JAVA_SECURITY="-Djava.security.egd=file:/dev/./urandom" \
    JAVA_ENCODING="-Dfile.encoding=UTF-8" \
    JAVA_TIMEZONE="-Duser.timezone=GMT" \
    JAVA_ERROR="-XX:+ExitOnOutOfMemoryError" \
    JAVA_OPTS=""

ARG JAR_FILE
COPY $JAR_FILE /app.jar

EXPOSE 8080

ENTRYPOINT [ "sh", "-c", "java $JAVA_SERVER $JAVA_DOCKER $JAVA_SECURITY $JAVA_ENCODING $JAVA_TIMEZONE $JAVA_ERROR $JAVA_OPTS -jar /app.jar" ]

⁠License

MIT License see LICENSE⁠

Please note that the MIT license only applies to the files created by epicsoft LLC. Other software may be licensed under other licenses.