Shamelessly stolen from https://github.com/lingej/pnp4nagios (no longer maintained)

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Install

I don't have a specific list of what's actually necessary, so here's what I have in my dockerfile, and it works, so there. Engineer yourself backwards from here.

FROM almalinux:8

RUN yum -y -q install epel-release net-tools less wget dnf-plugins-core && \
    yum -y -q update && \
    yum -y -q upgrade && \
    yum config-manager --enable epel && \
    yum config-manager --set-enabled powertools && \
    yum -y -q install nagios nagios-plugins nagios-plugins-all nagios-plugins-nrpe nsca nsca-client cifs-utils \
                      perl-DateTime perl-Math-Round perl-Class-Load-XS perl-Math-Round perl-Time-Piece perl-Switch \
                      perl-SOAP-Lite qt5-qtbase freetds perl-DBI perl-DBD-ODBC openldap-clients php-gd sysstat sshpass \
                      autoconf which make gcc-c++ rrdtool perl-Time-HiRes perl-rrdtool php-gd php php-cli procps \
                      openssl cronie php-xml; yum clean all
                      
RUN cd /tmp/; \
    wget --content-disposition https://github.com/mtnielsen/pnp4nagios/archive/refs/tags/0.6.26.1.tar.gz; \
    tar zxf pnp4nagios-0.6.26.1.tar.gz; \
    cd pnp4nagios-0.6.26.1; \
    ./configure; \
    make all; \
    make fullinstall; \
    mv /usr/local/pnp4nagios/share/install.php /usr/local/pnp4nagios/share/install.php.old; \
    ln -s /usr/local/pnp4nagios/ /var/www/html/pnp4nagios