Dockerfile

FROM alpine:3.20

ARG BUILD_DATE
ARG VCS_REF
ARG JAVA_VERSION
ARG OPENHAB_VERSION

ENV \
    CRYPTO_POLICY="limited" \
    EXTRA_JAVA_OPTS="" \
    EXTRA_SHELL_OPTS="" \
    GROUP_ID="9001" \
    KARAF_EXEC="exec" \
    LC_ALL="en_US.UTF-8" \
    LANG="en_US.UTF-8" \
    LANGUAGE="en_US.UTF-8" \
    OPENHAB_BACKUPS="/openhab/userdata/backup" \
    OPENHAB_CONF="/openhab/conf" \
    OPENHAB_HOME="/openhab" \
    OPENHAB_HTTP_PORT="8080" \
    OPENHAB_HTTPS_PORT="8443" \
    OPENHAB_LOGDIR="/openhab/userdata/logs" \
    OPENHAB_USERDATA="/openhab/userdata" \
    USER_ID="9001"

# Basic build-time metadata as defined at https://github.com/opencontainers/image-spec/blob/main/annotations.md#pre-defined-annotation-keys
LABEL org.opencontainers.image.created=$BUILD_DATE \
    org.opencontainers.image.licenses="EPL-2.0" \
    org.opencontainers.image.title="openHAB" \
    org.opencontainers.image.vendor="openHAB Foundation e.V." \
    org.opencontainers.image.version=$OPENHAB_VERSION \
    org.opencontainers.image.description="An open source, technology agnostic home automation platform" \
    org.opencontainers.image.url="https://www.openhab.org/" \
    org.opencontainers.image.documentation="https://www.openhab.org/docs/installation/docker.html" \
    org.opencontainers.image.revision=$VCS_REF \
    org.opencontainers.image.source="https://github.com/openhab/openhab-docker.git" \
    org.opencontainers.image.authors="openHAB <info@openhabfoundation.org>"

# https://github.com/hadolint/hadolint/wiki/DL4006
SHELL ["/bin/ash", "-eo", "pipefail", "-c"]

# Install basepackages. Versions are "pinned" by using a pinned base image.
# hadolint ignore=DL3018
RUN apk update --no-cache && \
    apk add --no-cache \
        arping \
        bash \
        ca-certificates \
        curl \
        eudev \
        fontconfig \
        gcompat \
        libcap \
        nss \
        shadow \
        su-exec \
        tini \
        ttf-dejavu \
        openjdk${JAVA_VERSION} \
        unzip \
        wget \
        zip && \
    chmod u+s /usr/sbin/arping && \
    rm -rf /var/cache/apk/*

# Limit JDK crypto policy by default to comply with local laws which may prohibit use of unlimited strength cryptography
RUN JAVA_HOME=$(find /usr/lib/jvm -maxdepth 1 -name "*jdk*" -type d) && \
    sed -i 's/^crypto.policy=unlimited/crypto.policy=limited/' "${JAVA_HOME}/conf/security/java.security"

# Install openHAB
# Set permissions for openHAB. Export TERM variable. See issue #30 for details!
# Single quotes are used on purpose, so $TERM is expanded when running the container.
# hadolint ignore=SC2016
RUN version="$(echo $OPENHAB_VERSION | sed 's/snapshot/SNAPSHOT/g')" && \
    if [ $(echo $version | grep -E '^.+\.(M|RC).+$') ]; then url="https://openhab.jfrog.io/openhab/libs-milestone-local/org/openhab/distro/openhab/${version}/openhab-${version}.zip"; \
    elif [ $(echo $version | grep -E '^4\..+-SNAPSHOT$') ]; then url="https://ci.openhab.org/job/openHAB-Distribution/lastSuccessfulBuild/artifact/distributions/openhab/target/openhab-${version}.zip"; \
    else url="https://openhab.jfrog.io/openhab/libs-release/org/openhab/distro/openhab/${version}/openhab-${version}.zip"; fi && \
    wget -nv -O /tmp/openhab.zip "$url" && \
    unzip -q /tmp/openhab.zip -d "${OPENHAB_HOME}" -x "*.bat" "*.ps1" "*.psm1" && \
    rm /tmp/openhab.zip && \
    mkdir -p "${OPENHAB_LOGDIR}" && \
    touch "${OPENHAB_LOGDIR}/openhab.log" && \
    mkdir -p "${OPENHAB_HOME}/dist" && \
    cp -a "${OPENHAB_CONF}" "${OPENHAB_USERDATA}" "${OPENHAB_HOME}/dist" && \
    echo 'export TERM=${TERM:=dumb}' | tee -a ~/.bashrc
COPY update ${OPENHAB_HOME}/runtime/bin/update
RUN chmod +x ${OPENHAB_HOME}/runtime/bin/update

# Expose volume with configuration and userdata dir
VOLUME ${OPENHAB_CONF} ${OPENHAB_USERDATA} ${OPENHAB_HOME}/addons

# Expose HTTP, HTTPS, Console and LSP ports
EXPOSE 8080 8443 8101 5007

# Set healthcheck
HEALTHCHECK --interval=5m --timeout=5s --retries=3 CMD curl -f http://localhost:${OPENHAB_HTTP_PORT}/ || exit 1

# Set working directory and entrypoint
WORKDIR ${OPENHAB_HOME}
COPY entrypoint /entrypoint
RUN chmod +x /entrypoint
ENTRYPOINT ["/entrypoint"]

# Execute command
CMD ["su-exec", "openhab", "tini", "-s", "./start.sh"]