Dockerfile

#============================#
#  ALEXBELGIUM'S DOCKERFILE  #
#============================#
#           _.------.
#       _.-`    ('>.-`"""-.
# '.--'`       _'`   _ .--.)
#    -'         '-.-';`   `
#    ' -      _.'  ``'--.
#        '---`    .-'""`
#               /`
#=== Home Assistant Addon ===#

#################
# 1 Build Image #
#################

ARG BUILD_FROM
ARG BUILD_VERSION
ARG BUILD_FROM
FROM ${BUILD_FROM}

##################
# 2 Modify Image #
##################

USER root
WORKDIR /config

# Set S6 wait time
ENV S6_CMD_WAIT_FOR_SERVICES=1 \
    S6_CMD_WAIT_FOR_SERVICES_MAXTIME=0 \
    S6_SERVICES_GRACETIME=0

# Correct config location
# hadolint ignore=SC2013
RUN for file in $(grep -sril "/home/node/.signalk" /etc /usr /home); do \
    sed -i "s=/home/node/.signalk=/config=g" "$file"; done

##################
# 3 Install apps #
##################

# Copy local files
COPY rootfs/ /

# Uses /bin for compatibility purposes
# hadolint ignore=DL4005
RUN if [ ! -f /bin/sh ] && [ -f /usr/bin/sh ]; then ln -s /usr/bin/sh /bin/sh; fi && \
    if [ ! -f /bin/bash ] && [ -f /usr/bin/bash ]; then ln -s /usr/bin/bash /bin/bash; fi

# Modules
ARG MODULES="00-banner.sh 01-custom_script.sh 00-global_var.sh 01-config_yaml.sh"

# Automatic modules download
ADD "https://raw.githubusercontent.com/alexbelgium/hassio-addons/master/.templates/ha_automodules.sh" "/ha_automodules.sh"
RUN chmod 744 /ha_automodules.sh && /ha_automodules.sh "$MODULES" && rm /ha_automodules.sh

# Manual apps
ENV PACKAGES=""

# Automatic apps & bashio
ADD "https://raw.githubusercontent.com/alexbelgium/hassio-addons/master/.templates/ha_autoapps.sh" "/ha_autoapps.sh"
RUN chmod 744 /ha_autoapps.sh && /ha_autoapps.sh "$PACKAGES" && rm /ha_autoapps.sh

################
# 4 Entrypoint #
################

# Add entrypoint
ENV S6_STAGE2_HOOK=/ha_entrypoint.sh
ADD "https://raw.githubusercontent.com/alexbelgium/hassio-addons/master/.templates/ha_entrypoint.sh" "/ha_entrypoint.sh"

# Entrypoint modifications
ADD "https://raw.githubusercontent.com/alexbelgium/hassio-addons/master/.templates/ha_entrypoint_modif.sh" "/ha_entrypoint_modif.sh"
RUN chmod 777 /ha_entrypoint.sh /ha_entrypoint_modif.sh && /ha_entrypoint_modif.sh && rm /ha_entrypoint_modif.sh

# Restart the addon on crash
RUN echo "bashio::addon.restart" >> /ha_entrypoint.sh

ENTRYPOINT [ "/usr/bin/env" ]
CMD [ "/ha_entrypoint.sh" ]

############
# 5 Labels #
############

ARG BUILD_ARCH
ARG BUILD_DATE
ARG BUILD_DESCRIPTION
ARG BUILD_NAME
ARG BUILD_REF
ARG BUILD_REPOSITORY
ARG BUILD_VERSION
LABEL \
    io.hass.name="${BUILD_NAME}" \
    io.hass.description="${BUILD_DESCRIPTION}" \
    io.hass.arch="${BUILD_ARCH}" \
    io.hass.type="addon" \
    io.hass.version=${BUILD_VERSION} \
    maintainer="alexbelgium (https://github.com/alexbelgium)" \
    org.opencontainers.image.title="${BUILD_NAME}" \
    org.opencontainers.image.description="${BUILD_DESCRIPTION}" \
    org.opencontainers.image.vendor="Home Assistant Add-ons" \
    org.opencontainers.image.authors="alexbelgium (https://github.com/alexbelgium)" \
    org.opencontainers.image.licenses="MIT" \
    org.opencontainers.image.url="https://github.com/alexbelgium" \
    org.opencontainers.image.source="https://github.com/${BUILD_REPOSITORY}" \
    org.opencontainers.image.documentation="https://github.com/${BUILD_REPOSITORY}/blob/main/README.md" \
    org.opencontainers.image.created=${BUILD_DATE} \
    org.opencontainers.image.revision=${BUILD_REF} \
    org.opencontainers.image.version=${BUILD_VERSION}

#################
# 6 Healthcheck #
#################

ENV HEALTH_PORT="8080" \
    HEALTH_URL="/health"
HEALTHCHECK \
    --interval=5s \
    --retries=5 \
    --start-period=30s \
    --timeout=25s \
    CMD curl --fail "http://127.0.0.1:${HEALTH_PORT}${HEALTH_URL}" &>/dev/null || exit 1