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docker-librenms

Docker image for LibreNMS

About

This is a generic docker container for LibreNMS.

The container runs nginx 1.11+ with HTTP/2 support and PHP 7.1 FPM with OPCache and rrdcached for maximum performance.

Basic commands to run the container

docker run \
	-d \
	-p 80:80 \
	-e DB_HOST=db \
	-e DB_NAME=librenms \
	-e DB_USER=librenms \
	-e DB_PASS=secret \
	-e BASE_URL=http://localhost \
	-e POLLERS=16 \
	-e TZ=UTC \
	--link my-database-container:db \
	-v /my/persistent/directory/logs:/opt/librenms/logs \
	-v /my/persistent/directory/rrd:/opt/librenms/rrd \
	--name librenms \
	jarischaefer/docker-librenms

Initial setup

Database configuration

If you don't have a MySQL server setup either in Docker or elsewhere then you can create a docker container here.

You should read the LibreNMS installation docs for the latest instructions regarding database setup.

As of November 2016, the following is still a requirement:

NOTE: Whilst we are working on ensuring LibreNMS is compatible with MySQL strict mode, for now, please disable this after mysql is installed.

Database schema

Make sure the database exists before running these commands.

Creating the tables:

docker exec librenms sh -c "cd /opt/librenms && php /opt/librenms/build-base.php"

Creating an initial admin user:

docker exec librenms php /opt/librenms/adduser.php admin admin 10 [email protected]

SSL

Mount another directory containing ssl.key, ssl.crt and optionally ssl.ocsp.crt to enable HTTPS. You'll also have to change BASE_URL.

docker run \
	-d \
	-p 80:80 \
	-p 443:443 \
	-e DB_HOST=db \
	-e DB_NAME=librenms \
	-e DB_USER=librenms \
	-e DB_PASS=secret \
	-e BASE_URL=https://localhost \
	-e POLLERS=16 \
	-e TZ=UTC \
	--link my-database-container:db \
	-v /my/persistent/directory/logs:/opt/librenms/logs \
	-v /my/persistent/directory/rrd:/opt/librenms/rrd \
	-v /my/persistent/directory/ssl:/etc/nginx/ssl:ro \
	--name librenms \
	jarischaefer/docker-librenms

Environment config

The following keys can be passed directly via the -e switch:

  • BASE_URL
  • DB_HOST
  • DB_PORT
  • DB_USER
  • DB_PASS
  • DB_NAME
  • MEMCACHED_ENABLE
  • MEMCACHED_HOST
  • MEMCACHED_PORT
  • POLLERS
  • DISABLE_IPV6
  • TZ

Custom config

To configure more advanced settings, you may use another mount. The following example demonstrates how temporary or otherwise undesired interfaces may be ignored.

docker run \
	-d \
	-p 80:80 \
	-p 443:443 \
	-e DB_HOST=db \
	-e DB_NAME=librenms \
	-e DB_USER=librenms \
	-e DB_PASS=secret \
	-e BASE_URL=https://localhost \
	-e POLLERS=16 \
	-e TZ=UTC \
	--link my-database-container:db \
	-v /my/persistent/directory/logs:/opt/librenms/logs \
	-v /my/persistent/directory/rrd:/opt/librenms/rrd \
	-v /my/persistent/directory/ssl:/etc/nginx/ssl:ro \
	-v /my/persistent/directory/config.custom.php:/opt/librenms/config.custom.php:ro \
	--name librenms \
	jarischaefer/docker-librenms

Notice the line -v /my/persistent/directory/config.custom.php:/opt/librenms/config.custom.php:ro. The example config contains the following:

// config.custom.php

$config['bad_if_regexp'][] = '/^docker[\w]+$/';
$config['bad_if_regexp'][] = '/^lxcbr[0-9]+$/';
$config['bad_if_regexp'][] = '/^veth.*$/';
$config['bad_if_regexp'][] = '/^virbr.*$/';
$config['bad_if_regexp'][] = '/^lo$/';
$config['bad_if_regexp'][] = '/^macvtap.*$/';
$config['bad_if_regexp'][] = '/gre.*$/';
$config['bad_if_regexp'][] = '/tun[0-9]+$/';

The start script automatically appends the contents of config.custom.php to config.php.

Running in production

The commands above are purely for illustrative purposes. You should customize them to fit your environment.

Also, please note that...

  • Alerting via email is supported via SMTP only.
  • Publicly accessible installations should be put behind jwilder/nginx-proxy or similar proxies for better access control and security hardening.

License

This project is open-sourced software licensed under the MIT license.

LibreNMS has its own license, this license only covers the Docker part.

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Docker image for LibreNMS

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  • Nginx 25.0%
  • PHP 19.4%