varsy/nagios-client repository overview

⁠docker-nagios-client

CentOS6 + nagios nrpe client

This is a node nagios container which allows you to run various checks on running machine. The main goal is to create nagios alerts container automatically, just place conf file to /conf/nagios/nrpe.cfg.

TODO: generate a server config and send it to server on start and delete it from server on stop.

⁠List of environment variables

• ETCDCTL_PEERS - address of etcd service to watch reload signal. Optional.
• ETCDCTL_WATCH - path inside etcd to watch reload signal. Optional.

⁠Usage

Run it like that:

docker run -d -e ETCDCTL_PEERS="172.17.42.1:4001" -p 5666:5666 \
--volumes-from=configurator --name nagios varsy/nagios-client

where configurator is a container which share its volume /conf/nagios/ with nrpe.cfg file inside.

⁠Reload configuration on the fly

New configuration files should be at /conf/nagios/ directory then you need to send reload string to ETCDCTL_WATCH path to initiate reload of nagios. You may use varsy/configurator⁠ container to manage git based configuration and reload nrpe daemon. Use templates of configuration from confd directory.