Dockerfile

FROM helixnetwork/base16.04:latest as builder
LABEL maintainer="dt@hlx.ai"

WORKDIR /pendulum
# cache all deps Maven 
COPY pom.xml .
RUN mvn dependency:go-offline

# copy src files only for better caching
COPY checkstyle.xml .
COPY ./src /pendulum/src
RUN mvn clean package

FROM openjdk:jre-slim

RUN apt-get update && apt-get install -y --no-install-recommends \
        socat \
    && rm -rf /var/lib/apt/lists/*

COPY --from=builder /pendulum/target/pendulum*.jar /pendulum/target/
COPY docker/entrypoint.sh /

# Default environment variables configuration. See DOCKER.md for details.
# Override these variables if required (e.g. docker run -e JAVA_OPTIONS="myoptions" ...)
# `JAVA_OPTIONS`                                 Java related options
# `JAVA_MIN_MEMORY` and `JAVA_MAX_MEMORY`        Settings for -Xms and -Xmx respectively.
#                                                See https://docs.oracle.com/cd/E21764_01/web.1111/e13814/jvm_tuning.htm#PERFM161
# `DOCKER_PLM_JAR_PATH`                          Path where the PLM (pendulum) jar file is located.
# `DOCKER_PLM_JAR_FILE`                          pendulum jar file.
# `DOCKER_PLM_REMOTE_LIMIT_API`                  Sets the --remote-limit-api options.
#                                                (Deprecation warning, see https://github.com/iotaledger/iri/issues/1500)
# `DOCKER_PLM_MONITORING_API_PORT_ENABLE`        When using a docker bridged network setting this to 1 will have
#                                                socat exposing 8086 and pointing it on localhost. See /entrypoint.sh
#                                                Do not enable this option when running the pendulum container on host network.
#                                                !!! DO NOT DOCKER EXPOSE (-p) 8086 as the remote api settings will
#                                                not be applied on that port !!!
#                                                You also have to maintain $DOCKER_PLM_MONITORING_API_PORT_DESTINATION
#                                                based on the actual API port exposed via PLM
# `DOCKER_PLM_MONITORING_API_PORT_DESTINATION`   Set this to the actual PLM API port. This is used to map port 14266.
# `DOCKER_PLM_REMOTE`                            When using a docker bridged network set this to true. Using host network
#                                                you may choose to set it to false to make sure the API port listens on
#                                                localhost only. If you want to bind your API (--api-host) to a specific interface
#                                                you will have to set this option to false.
# `DOCKER_JAVA_NET_PREFER_IPV4_STACK`            If set to true will allow usage of IPv4 only. Set to false to be able to use IPv6.
#                                                See https://docs.oracle.com/javase/7/docs/api/java/net/doc-files/net-properties.html
ENV JAVA_OPTIONS="-XX:+UnlockExperimentalVMOptions -XX:+DisableAttachMechanism -XX:InitiatingHeapOccupancyPercent=60 -XX:G1MaxNewSizePercent=75 -XX:MaxGCPauseMillis=10000 -XX:+UseG1GC" \
    JAVA_MIN_MEMORY=2G \
    JAVA_MAX_MEMORY=4G \
    DOCKER_PLM_JAR_PATH="/pendulum/target" \
    DOCKER_PLM_JAR_FILE="pendulum*.jar" \
    DOCKER_PLM_REMOTE_LIMIT_API="interruptAttachToTangle, attachToTangle, addNeighbors, removeNeighbors, getNeighbors" \
    DOCKER_PLM_MONITORING_API_PORT_ENABLE=0 \
    DOCKER_PLM_MONITORING_API_PORT_DESTINATION=8085 \
    DOCKER_PLM_REMOTE=true \
    DOCKER_PLM_LOGGING_LEVEL="info" \
    DOCKER_JAVA_NET_PREFER_IPV4_STACK=true

WORKDIR /pendulum/data
ENTRYPOINT [ "/entrypoint.sh" ]