Home -> Adagios Nagios3 CentOS 7 Docker image

Adagios Nagios3 CentOS 7 Docker image

Introduction

This is adapted from pschmitt/adagios and included the following features:

• centos:7 base image
• timezone environment setting
• use your own SSL certificate or self signed SSL certificate
• lighttpd with fastcgi for low memory server
• uwsgi to host adagios application
• nagios3 from CentOS Cloud SIG repo
• adagios from git instead of old prebuilt rpms
• nagios mobile web interface
• automatic nagios configurations backup and restore
• sample nagios plugins checks via ssh scripts
• postfix for sending nagios alerts email

Usage notes

There are sample nagios plugins checks via ssh scripts located in opt/ directory, as well as the shell script that install these plugins. Copy them to /opt volume, then add the necessary commands/services for the plugins via Adagios interface.

custom-init-sample.sh is kept as example alternative.

It is strongly advisable to pre-generate passphraseless SSH public key to be stored in the nagios user home directory when using these nagios plugins.

Make sure to customise /etc/postfix/main.cf to send out nagios alerts email.

Please review and edit docker-adagios.service systemd service file before use.

Variables

• ADAGIOS_HOST : Hostname (Default: localhost)
• ADAGIOS_USER : Username for accessing the adagios web interface (Default: nagiosadmin)
• ADAGIOS_PASS : Password for accessing the adagios web interface (Default: P@ssw0rd)
• GIT_REPO : Whether /etc/nagios should be kept in a git repo. (Default: false)
• LOCALTIMEZONE : Time zone name used in value of TZ environment variable (Default: UTC)
• SSLCERT : path and name of the PEM file for SSL support, it should contain both the private key and the certificate. (Default: /etc/pki/tls/certs/localhost.pem self signed)

Volumes

• /etc/adagios
• /etc/nagios
• /var/lib/pnp4nagios
• /var/log/nagios
• /opt

Complete Example

docker build -t uqwhsu/adagios --rm=true --force-rm=true .

docker run -d -h nagios -p 80:80 -p 443:443 \
  -e ADAGIOS_USER=nagiosadmin \
  -e ADAGIOS_PASS=nagiosP@ssw0rd \
  -e GIT_REPO=true \
  -e LOCALTIMEZONE=Australia/Brisbane \
  -v ~/dev/docker/adagios/data/adagios:/etc/adagios \
  -v ~/dev/docker/adagios/data/nagios:/etc/nagios \
  -v ~/dev/docker/adagios/data/pnp4nagios:/var/lib/pnp4nagios \
  -v ~/dev/docker/adagios/data/log:/var/log/nagios \
  -v ~/dev/docker/adagios/data/opt:/opt \
  -v ~/dev/docker/adagios/data/.ssh:/var/spool/nagios/.ssh \
  -v ~/dev/docker/adagios/data/main.cf:/etc/postfix/main.cf \
  uqwhsu/adagios

After starting the container you can visit http://localhost/ or http://192.168.59.103 if you use boot2docker.

Additional Information

Please see: pschmitt/adagios README

Bonus

Please see GitLab CE CentOS:6 Docker project: docker-gitlabce-el6