FROM alpine:3.12

LABEL org.opencontainers.image.title="Zabbix agent" \
      org.opencontainers.image.authors="Alexey Pustovalov <alexey.pustovalov@zabbix.com>" \
      org.opencontainers.image.vendor="Zabbix LLC" \
      org.opencontainers.image.url="https://zabbix.com/" \
      org.opencontainers.image.description="Zabbix agent is deployed on a monitoring target to actively monitor local resources and applications" \
      org.opencontainers.image.licenses="GPL v2.0"

STOPSIGNAL SIGTERM

RUN set -eux && \
    addgroup --system --gid 1995 zabbix && \
    adduser --system \
            --gecos "Zabbix monitoring system" \
            --disabled-password \
            --uid 1997 \
            --ingroup zabbix \
            --shell /sbin/nologin \
            --home /var/lib/zabbix/ \
        zabbix && \
    adduser zabbix root && \
    mkdir -p /etc/zabbix && \
    mkdir -p /etc/zabbix/zabbix_agentd.d && \
    mkdir -p /var/lib/zabbix && \
    mkdir -p /var/lib/zabbix/enc && \
    mkdir -p /var/lib/zabbix/modules && \
    apk add --no-cache --clean-protected \
            tini \
            bash \
            tzdata \
            coreutils \
            iputils \
            pcre \
            libcurl \
            libldap && \
    rm -rf /var/cache/apk/*

ARG MAJOR_VERSION=5.4
ARG ZBX_VERSION=${MAJOR_VERSION}
ARG ZBX_SOURCES=https://git.zabbix.com/scm/zbx/zabbix.git

ENV TERM=xterm ZBX_VERSION=${ZBX_VERSION} ZBX_SOURCES=${ZBX_SOURCES}

LABEL org.opencontainers.image.documentation="https://www.zabbix.com/documentation/${MAJOR_VERSION}/manual/installation/containers" \
      org.opencontainers.image.version="${ZBX_VERSION}" \
      org.opencontainers.image.source="${ZBX_SOURCES}"

RUN set -eux && \
    apk add --no-cache --virtual build-dependencies \
            autoconf \
            automake \
            curl-dev \
            openssl-dev \
            openldap-dev \
            g++ \
            pcre-dev \
            make \
            git && \
    cd /tmp/ && \
    git clone ${ZBX_SOURCES} --branch master --depth 1 --single-branch zabbix-${ZBX_VERSION} && \
    cd /tmp/zabbix-${ZBX_VERSION} && \
    zabbix_revision=`git rev-parse --short HEAD` && \
    sed -i "s/{ZABBIX_REVISION}/$zabbix_revision/g" include/version.h && \
    ./bootstrap.sh && \
    export CFLAGS="-fPIC -pie -Wl,-z,relro -Wl,-z,now" && \
    ./configure \
            --datadir=/usr/lib \
            --libdir=/usr/lib/zabbix \
            --prefix=/usr \
            --sysconfdir=/etc/zabbix \
            --prefix=/usr \
            --enable-agent \
            --with-libcurl \
            --with-ldap \
            --with-openssl \
            --enable-ipv6 \
            --silent && \
    make -j"$(nproc)" -s && \
    cp /tmp/zabbix-${ZBX_VERSION}/src/zabbix_agent/zabbix_agentd /usr/sbin/zabbix_agentd && \
    cp /tmp/zabbix-${ZBX_VERSION}/src/zabbix_get/zabbix_get /usr/bin/zabbix_get && \
    cp /tmp/zabbix-${ZBX_VERSION}/src/zabbix_sender/zabbix_sender /usr/bin/zabbix_sender && \
    cp /tmp/zabbix-${ZBX_VERSION}/conf/zabbix_agentd.conf /etc/zabbix/zabbix_agentd.conf && \
    cd /tmp/ && \
    rm -rf /tmp/zabbix-${ZBX_VERSION}/ && \
    chown --quiet -R zabbix:root /etc/zabbix/ /var/lib/zabbix/ && \
    chgrp -R 0 /etc/zabbix/ /var/lib/zabbix/ && \
    chmod -R g=u /etc/zabbix/ /var/lib/zabbix/ && \
    apk del --purge --no-network \
            build-dependencies && \
    rm -rf /var/cache/apk/*

EXPOSE 10050/TCP

WORKDIR /var/lib/zabbix

COPY ["docker-entrypoint.sh", "/usr/bin/"]

ENTRYPOINT ["/sbin/tini", "--", "/usr/bin/docker-entrypoint.sh"]

USER 1997

CMD ["/usr/sbin/zabbix_agentd", "--foreground", "-c", "/etc/zabbix/zabbix_agentd.conf"]