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Short Description
docker-icinga2
Full Description

docker-icinga2

This repository is used as source for the
docker image icinga/icinga2 located at Docker Hub.

Requirements

Support

This container is used for demos, tests and development only.

If you encounter bugs, please open a new issue at dev.icinga.org
and/or send a patch.

Image details

  • Based on centos:centos7 (similar to the Vagrant boxes)
  • Icinga 2 w/ DB IDO MySQL, Icinga Web 2, MariaDB, Apache2
  • Icinga 2 API
  • Default installation/credentials. Use at your own risk.

Usage

Run

Start a new container, bind the container's port 80 to localhost:3080
and let the initialization do its job:

$ docker run -ti --name icinga2 -p 3080:80 icinga/icinga2

If you want to invoke it manually, go for

$ docker run -ti --name icinga2 -p 3080:80 icinga/icinga2 /bin/bash
# /opt/icinga2/initdocker

Exec

Attach to a running container using exec and the container name.

$ docker exec -ti icinga2 /bin/bash

Stop

$ docker stop icinga2

Remove

$ docker rm icinga2

Container Build

Build a new container based on this repository:

$ sudo docker pull centos:centos7
$ sudo docker build -t icinga/icinga2 .

SSH Access

Even if you can already mount specific volumes there's ssh access
available. Make sure to map the port accordingly.

$ sudo docker run -ti --name icinga2 -p 3080:80 -p 3022:22 icinga/icinga2

Then login as appuser/appuser. sudo is enabled for this user.

$ ssh appuser@localhost -p 3022

Tools

Icinga 2

The configuration is located in /etc/icinga2 which is exposed as volume from
docker.

By default the icinga database is created, and ido-mysql and command features
are enabled.

The container startup will validate the configuration once (e.g. if you have mounted
the volume).

Icinga 2 API

The container already enables the Icinga 2 API listening on port 5665. Export the
port accordingly.

docker run -d -ti --name icinga2-api -p 4080:80 -p 4665:5665 icinga/icinga2

After the container is up and running, connect via HTTP to the exposed port using
the credentials root:icinga.

Example for Docker on OSX (change the IP address to your localhost):

curl -k -s -u root:icinga 'https://192.168.99.100:4665/v1/objects/hosts' | python -m json.tool

Icinga 2 Graphite Feature

In order to enable the Graphite feature at runtime (e.g. exposing port 2003 for a separate container
running Graphite) you'll need to pass the environment variables to the container.

Environment Variable Description
ICINGA2_FEATURE_GRAPHITE Enables the Graphite feature
ICINGA2_FEATURE_GRAPHITE_HOST Required. Host where Graphite is running on.
ICINGA2_FEATURE_GRAPHITE_PORT Required. Port where Graphite is listening on.

Furthermore you'll need to --link the container to an existing container, e.g. graphite to allow
the link on port 2003 required by Graphite.

docker run -d -ti --name icinga2 -p 3080:80 --link graphite:graphite -e ICINGA2_FEATURE_GRAPHITE=1 -e ICINGA2_FEATURE_GRAPHITE_HOST="192.168.99.100" -e ICINGA2_FEATURE_GRAPHITE_PORT=2003 icinga/icinga2

Example for a Graphite container called graphite:

docker run -d --name graphite --restart=always -p 9090:80 -p 2003:2003 hopsoft/graphite-statsd

Icinga Web 2

Icinga Web 2 can be accessed at http://localhost:3080/icingaweb2 w/ icingaadmin:icinga as credentials.

The configuration is located in /etc/icingaweb2 which is exposed as volume from
docker.

By default the icingaweb2 database is created including the icingaadmin user. Additional
configuration is also added to skip the setup wizard.

Ports

The following ports are exposed:

Port Service
22 SSH
80 HTTP
443 HTTPS
3306 MySQL
5665 Icinga 2 API & Cluster

Volumes

These volumes can be mounted in order to test and develop various stuff.

/etc/icinga2
/etc/icingaweb2

/var/lib/icinga2
/usr/share/icingaweb2

/var/lib/mysql

Thanks

Docker Pull Command
Owner
marsyang1
Source Repository

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