FROM ubuntu:focal

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 && \
    echo "#!/bin/sh\nexit 0" > /usr/sbin/policy-rc.d && \
    groupadd --system --gid 1995 zabbix && \
    useradd \
            --system --comment "Zabbix monitoring system" \
            -g zabbix -G root \
            --uid 1997 \
            --shell /sbin/nologin \
            --home-dir /var/lib/zabbix/ \
        zabbix && \
    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 && \
    apt-get -y update && \
    DEBIAN_FRONTEND=noninteractive apt-get -y --no-install-recommends install \
            tini \
            tzdata \
            ca-certificates \
            libssl1.1 \
            libcurl4 \
            libldap-2.4 && \
    apt-get -y autoremove && \
    apt-get -y clean && \
    rm -rf /var/lib/apt/lists/* 

ARG MAJOR_VERSION=5.0
ARG ZBX_VERSION=${MAJOR_VERSION}.7
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 && \
    apt-get -y update && \
    DEBIAN_FRONTEND=noninteractive apt-get -y --no-install-recommends install \
            autoconf \
            automake \
            libcurl4-openssl-dev \
            libc6-dev \
            libldap2-dev \
            libpcre3-dev \
            libssl-dev \
            make \
            pkg-config \
            git \
            gcc && \
    cd /tmp/ && \
    git clone ${ZBX_SOURCES} --branch ${ZBX_VERSION} --depth 1 --single-branch zabbix-${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 \
            --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}/ && \
    apt-get -y purge \
            autoconf \
            automake \
            libcurl4-openssl-dev \
            libc6-dev \
            libldap2-dev \
            libssl-dev \
            make \
            pkg-config \
            git \
            gcc && \ 
    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/ && \
    apt-get -y autoremove && \
    apt-get -y clean && \
    rm -rf /var/lib/apt/lists/*

EXPOSE 10050/TCP

WORKDIR /var/lib/zabbix

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

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

USER 1997

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