monzero
=======

Monzero is a collection of tools with the purpose of running monitoring checks
and triggering notifications.

requirements
------------

runtime requirements:
* PostgreSQL >= 10.0

build requirements:
* Go >= 1.11

components
----------

The following components exist:

### moncheck

Moncheck is the daemon that runs the checks and generates notifications in the
database.
It is possible to run multiple instances of moncheck, as it uses PostgreSQL
as a coordinator through the PostgreSQL internal locking mechanism.

Moncheck uses the table `active_checks` to detect which checks to run.

### monfront

Monfront is a webfrontend to view the current state of all checks, configure
hosts, groups, checks and view current notifications.
It is possible to run multiple instances.

### monwork

Monwork is a small server that does all the maintenance work in the background.
It is responsible to cleanup the history and generate the configuration.

The configuration is generated into `active_checks` when an entry in `nodes`,
`command` or `checks` was changed (detected through the updated column).