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https://github.com/manios/docker-nagios.git
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259 lines
13 KiB
Docker
259 lines
13 KiB
Docker
### ================================== ###
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### STAGE 1 CREATE PARENT IMAGE ###
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### ================================== ###
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# https://www.docker.com/blog/docker-arm-virtual-meetup-multi-arch-with-buildx/
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FROM alpine:3.12 as builder-base
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ARG TARGETPLATFORM
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ARG BUILDPLATFORM
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ENV NAGIOS_HOME=/opt/nagios \
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NAGIOS_USER=nagios \
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NAGIOS_GROUP=nagios \
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NAGIOS_CMDUSER=nagios \
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NAGIOS_CMDGROUP=nagios \
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NAGIOS_TIMEZONE=UTC \
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NAGIOS_FQDN=nagios.example.com \
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NAGIOSADMIN_USER=nagiosadmin \
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NAGIOSADMIN_PASS=nagios \
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NAGIOS_VERSION=4.5.0 \
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NAGIOS_PLUGINS_VERSION=2.4.7 \
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NRPE_VERSION=4.1.0 \
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APACHE_LOCK_DIR=/var/run \
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APACHE_LOG_DIR=/var/log/apache2
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RUN addgroup -S ${NAGIOS_GROUP} && \
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adduser -S ${NAGIOS_USER} -G ${NAGIOS_CMDGROUP} -g ${NAGIOS_USER} && \
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apk update && \
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apk add --no-cache git curl unzip apache2 apache2-utils rsyslog \
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php7 php7-gd php7-cli runit parallel ssmtp \
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libltdl libintl openssl-dev php7-apache2 procps tzdata \
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libldap mariadb-connector-c freeradius-client-dev libpq libdbi \
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lm-sensors perl net-snmp-perl perl-net-snmp perl-crypt-x509 \
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perl-timedate perl-libwww perl-text-glob samba-client openssh openssl \
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net-snmp-tools bind-tools gd gd-dev && \
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\
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: '# For x86 the binary is : gosu-i386' && \
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: '# For x64 the binary is : gosu-amd64' && \
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: '# For arm-v6 the binary is : gosu-armel' && \
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: '# For arm-v7 the binary is : gosu-armhf' && \
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: '# For arm64 the binary is : gosu-arm64' && \
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: '# For arm64/v8 the binary is : gosu-arm64' && \
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: '#######################################' && \
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: '# Creating an associative array with the platforms and their respective gosu release DOES NOT WORK in /bin/sh' && \
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echo "Arguments TARGETPLATFORM: ${TARGETPLATFORM} and BUILDPLATFORM: ${BUILDPLATFORM}" && \
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echo "$TARGETPLATFORM" | awk '{ gosuBinArr["linux/386"]="gosu-i386"; gosuBinArr["linux/amd64"]="gosu-amd64"; gosuBinArr["linux/arm/v6"]="gosu-armel"; gosuBinArr["linux/arm/v7"]="gosu-armhf"; gosuBinArr["linux/arm64"]="gosu-arm64"; gosuBinArr["linux/arm64/v8"]="gosu-arm64"; print gosuBinArr[$0];}' > mygosuver.txt && \
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gosuPlatform=$(cat mygosuver.txt) && \
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echo "Downloading ${gosuPlatform} for platform $TARGETPLATFORM" &&\
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curl -L -o gosu "https://github.com/tianon/gosu/releases/download/1.13/${gosuPlatform}" && \
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mv gosu /bin/ && \
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chmod 755 /bin/gosu && \
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chmod +s /bin/gosu && \
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addgroup -S apache ${NAGIOS_CMDGROUP}
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### ================================== ###
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### STAGE 2 COMPILE NAGIOS SOURCES ###
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### ================================== ###
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FROM builder-base as builder-compile
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ARG TARGETPLATFORM
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ARG BUILDPLATFORM
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# Add dependencies required to build Nagios
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RUN apk update && \
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apk add --no-cache build-base automake libtool autoconf py-docutils gnutls \
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gnutls-dev g++ make alpine-sdk build-base gcc autoconf \
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gettext-dev linux-headers openssl-dev net-snmp net-snmp-tools \
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libcrypto1.1 libpq musl libldap libssl1.1 libdbi freeradius-client mariadb-connector-c \
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openssh-client bind-tools samba-client fping grep rpcbind \
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lm-sensors net-snmp-tools \
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file freeradius-client-dev libdbi-dev libpq linux-headers mariadb-dev \
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mariadb-connector-c-dev perl \
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net-snmp-dev openldap-dev openssl-dev postgresql-dev wget
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# Download Nagios core, plugins and nrpe sources
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RUN cd /tmp && \
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echo -n "Downloading Nagios ${NAGIOS_VERSION} source code: " && \
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wget -O nagios-core.tar.gz "https://github.com/NagiosEnterprises/nagioscore/archive/refs/tags/nagios-${NAGIOS_VERSION}.tar.gz" && \
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echo -n -e "OK\nDownloading Nagios plugins ${NAGIOS_PLUGINS_VERSION} source code: " && \
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wget -O nagios-plugins.tar.gz "https://github.com/nagios-plugins/nagios-plugins/archive/refs/tags/release-${NAGIOS_PLUGINS_VERSION}.tar.gz" && \
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echo -n -e "OK\nDownloading NRPE ${NRPE_VERSION} source code: " && \
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wget -O nrpe.tar.gz "https://github.com/NagiosEnterprises/nrpe/archive/refs/tags/nrpe-${NRPE_VERSION}.tar.gz" && \
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env && \
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echo "I am running on $BUILDPLATFORM, building for $TARGETPLATFORM !! == " && \
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echo "OK"
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# Compile Nagios Core
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RUN ls -l /tmp && cd /tmp && \
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tar zxf nagios-core.tar.gz && \
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tar zxf nagios-plugins.tar.gz && \
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tar zxf nrpe.tar.gz && \
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cd "/tmp/nagioscore-nagios-${NAGIOS_VERSION}" && \
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echo -e "\n ===========================\n Configure Nagios Core\n ===========================\n" && \
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./configure \
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--prefix=${NAGIOS_HOME} \
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--exec-prefix=${NAGIOS_HOME} \
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--enable-event-broker \
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--with-command-user=${NAGIOS_CMDUSER} \
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--with-command-group=${NAGIOS_CMDGROUP} \
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--with-nagios-user=${NAGIOS_USER} \
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--with-nagios-group=${NAGIOS_GROUP} && \
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: 'Apply patches to Nagios Core sources:' && \
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echo -n "Replacing \"<sys\/poll.h>\" with \"<poll.h>\": " && \
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sed -i 's/<sys\/poll.h>/<poll.h>/g' ./include/config.h && \
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echo "OK" && \
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echo -e "\n\n ===========================\n Compile Nagios Core\n ===========================\n" && \
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make all && \
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echo -e "\n\n ===========================\n Install Nagios Core\n ===========================\n" && \
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make install && \
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make install-commandmode && \
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make install-config && \
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make install-webconf && \
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echo -n "Nagios installed size: " && \
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du -h -s ${NAGIOS_HOME}
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# Compile Nagios Plugins
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RUN echo -e "\n\n ===========================\n Configure Nagios Plugins\n ===========================\n" && \
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ls -lia /tmp && cd /tmp && \
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cd /tmp/nagios-plugins-release-${NAGIOS_PLUGINS_VERSION} && \
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./autogen.sh && \
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./configure --with-nagios-user=${NAGIOS_USER} \
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--with-nagios-group=${NAGIOS_USER} \
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--with-openssl \
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--prefix=${NAGIOS_HOME} \
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--with-ping-command="/bin/gosu root /bin/ping -n -w %d -c %d %s" \
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--with-ipv6 \
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--with-ping6-command="/bin/gosu root /bin/ping6 -n -w %d -c %d %s" && \
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echo "Nagios plugins configured: OK" && \
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echo -n "Replacing \"<sys\/poll.h>\" with \"<poll.h>\": " && \
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egrep -rl "\<sys\/poll.h\>" . | xargs sed -i 's/<sys\/poll.h>/<poll.h>/g' && \
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egrep -rl "\"sys\/poll.h\"" . | xargs sed -i 's/"sys\/poll.h"/"poll.h"/g' && \
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echo "OK" && \
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echo -e "\n\n ===========================\n Compile Nagios Plugins\n ===========================\n" && \
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make && \
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echo "Nagios plugins compile successfully: OK" && \
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echo -e "\n\n ===========================\nInstall Nagios Plugins\n ===========================\n" && \
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make install && \
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echo "Nagios plugins installed successfully: OK"
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# Compile NRPE
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RUN echo -e "\n\n =====================\n Configure NRPE\n =====================\n" && \
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cd /tmp/nrpe-nrpe-${NRPE_VERSION} && \
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./configure --enable-command-args \
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--with-nagios-user=${NAGIOS_USER} \
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--with-nagios-group=${NAGIOS_USER} \
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--with-ssl=/usr/bin/openssl \
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--with-ssl-lib=/usr/lib && \
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echo "NRPE client configured: OK" && \
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echo -e "\n\n ===========================\n Compile NRPE\n ===========================\n" && \
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# make all && \
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make check_nrpe && \
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echo "NRPE compiled successfully: OK" && \
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echo -e "\n\n ===========================\n Install NRPE\n ===========================\n" && \
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# make install && \
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cp src/check_nrpe ${NAGIOS_HOME}/libexec/ && \
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echo "NRPE installed successfully: OK" && \
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echo -n "Final Nagios installed size: " && \
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du -h -s ${NAGIOS_HOME}
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# Compile Nagios files
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# Create SSMTP configuration
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# RUN sed -i.bak 's/.*\=www\-data//g' /etc/apache2/envvars
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RUN export DOC_ROOT="DocumentRoot $(echo $NAGIOS_HOME/share)" && \
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sed -i "s,DocumentRoot.*,$DOC_ROOT," /etc/apache2/httpd.conf && \
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sed -i "s|^ *ScriptAlias.*$|ScriptAlias /cgi-bin $NAGIOS_HOME/sbin|g" /etc/apache2/httpd.conf && \
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sed -i 's/^\(.*\)#\(LoadModule cgi_module\)\(.*\)/\1\2\3/' /etc/apache2/httpd.conf && \
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echo "ServerName ${NAGIOS_FQDN}" >> /etc/apache2/httpd.conf
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RUN sed -i 's,/bin/mail,/usr/bin/mail,' ${NAGIOS_HOME}/etc/objects/commands.cfg && \
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sed -i 's,/usr/usr,/usr,' ${NAGIOS_HOME}/etc/objects/commands.cfg && \
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\
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: '# Modify Nagios mail commands in order to work with SSMTP' && \
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sed -i 's/^.*command_line.*Host Alert.*$//g' /opt/nagios/etc/objects/commands.cfg && \
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sed -i 's/^.*command_line.*Service Alert.*$//g' /opt/nagios/etc/objects/commands.cfg && \
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sed -i '/notify-host-by-email/a command_line /usr/bin/printf "%b" "Subject: $NOTIFICATIONTYPE$ Host Alert: $HOSTNAME$ is $HOSTSTATE$\\n\\n***** Nagios *****\\n\\nNotification Type: $NOTIFICATIONTYPE$\\nHost: $HOSTNAME$\\nState: $HOSTSTATE$\\nAddress: $HOSTADDRESS$\\nInfo: $HOSTOUTPUT$\\n\\nDate/Time: $LONGDATETIME$\\n" | /usr/sbin/sendmail -v $CONTACTEMAIL$' ${NAGIOS_HOME}/etc/objects/commands.cfg && \
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sed -i '/notify-service-by-email/a command_line /usr/bin/printf "%b" "Subject: $NOTIFICATIONTYPE$ Service Alert: $HOSTALIAS$/$SERVICEDESC$ is $SERVICESTATE$\\n\\n***** Nagios *****\\n\\nNotification Type: $NOTIFICATIONTYPE$\\n\\nService: $SERVICEDESC$\\nHost: $HOSTALIAS$\\nAddress: $HOSTADDRESS$\\nState: $SERVICESTATE$\\n\\nDate/Time: $LONGDATETIME$\\n\\nAdditional Info:\\n\\n$SERVICEOUTPUT$\\n" | /usr/sbin/sendmail -v $CONTACTEMAIL$' ${NAGIOS_HOME}/etc/objects/commands.cfg
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RUN echo "use_timezone=${NAGIOS_TIMEZONE}" >> ${NAGIOS_HOME}/etc/nagios.cfg && \
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sed -i 's/date_format=us/date_format=iso8601/g' ${NAGIOS_HOME}/etc/nagios.cfg
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# Copy original configuration to /orig directory
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RUN mkdir -p /orig/apache2 && \
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cp -r /etc/apache2/* /orig/apache2 && \
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cp -r ${NAGIOS_HOME}/etc /orig/etc && \
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cp -r ${NAGIOS_HOME}/var /orig/var
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### ========================== ###
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### START OF ACTUAL DOCKERFILE ###
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### ========================== ###
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FROM builder-base
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MAINTAINER Christos Manios <maniopaido@gmail.com>
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LABEL name="Nagios" \
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nagiosVersion=$NAGIOS_VERSION \
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nagiosPluginsVersion=$NAGIOS_PLUGINS_VERSION \
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nrpeVersion=$NRPE_VERSION \
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homepage="https://www.nagios.com/" \
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maintainer="Christos Manios <maniopaido@gmail.com>" \
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build="17" \
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org.opencontainers.image.title="Nagios" \
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org.opencontainers.image.description="Nagios, the Industry Standard In IT Infrastructure Monitoring" \
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org.opencontainers.image.vendor="Nagios" \
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org.opencontainers.image.authors="Christos Manios <maniopaido@gmail.com>" \
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org.opencontainers.image.licenses="MIT" \
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org.opencontainers.image.url="https://hub.docker.com/r/manios/nagios" \
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org.opencontainers.image.source="https://github.com/manios/docker-nagios" \
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org.opencontainers.image.documentation="https://github.com/manios/docker-nagios/blob/master/README.md" \
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org.opencontainers.image.version="17"
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RUN mkdir -p ${NAGIOS_HOME} && \
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mkdir -p /orig/apache2
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WORKDIR ${NAGIOS_HOME}
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COPY --from=builder-compile ${NAGIOS_HOME} ${NAGIOS_HOME}
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COPY --from=builder-compile /orig /orig
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ADD overlay/ /
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# Make
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RUN chmod +x /usr/local/bin/start_nagios \
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/etc/sv/apache/run \
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/etc/sv/nagios/run \
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/etc/sv/rsyslog/run && \
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rm -rf /etc/sv/getty-5 && \
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\
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: '# enable all runit services' && \
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ln -s /etc/sv/* /etc/service && \
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\
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: '# Copy initial settings files' && \
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chown -R nagios:nagios ${NAGIOS_HOME} && \
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: '# Create special dirs' && \
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(mkdir /run/apache2 || true) && \
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mkdir -p /var/spool/rsyslog && \
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: '# Copy Apache configuration' && \
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cp -Rp /orig/apache2/* /etc/apache2 && \
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: '# Convert files to Unix format' && \
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dos2unix /etc/rsyslog.conf && \
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dos2unix /usr/local/bin/start_nagios && \
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dos2unix /etc/sv/**/run && \
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dos2unix /etc/ssmtp/ssmtp.conf && \
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: '# Add mail symbolic links to ssmtp' && \
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ln -s $(which ssmtp) /bin/mail && \
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ln -s $(which ssmtp) /usr/sbin/mail
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EXPOSE 80
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VOLUME "${NAGIOS_HOME}/var" "${NAGIOS_HOME}/etc" "/var/log/apache2" "/opt/Custom-Nagios-Plugins"
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CMD [ "/usr/local/bin/start_nagios" ]
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