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Project description

Graphite Pager

Graphite Pager is a small application to send PagerDuty alerts based on
Graphite metrics. This makes it easy to be paged about what's happening in
your system.

You shouldn't uses this yet, I'm still playing with it.

It can be deployed to Heroku (make sure you use SSL!)

## Background

Graphite is a great tool for recording metrics but it isn't easy to get paged
when a metric passes a certain threshold.

Graphite-Pager is an easy to use alerting tool for Graphite that will send
Pager Duty alerts if a metric reaches a warning or critical level.

## Requirements

* PagerDuty account
* Graphite

## Notifiers

Notifiers are what communicate with your preferred alerting service. Currently
PagerDuty is required and HipChat is optional.

PagerDuty requires an application key set in the environment as `PAGERDUTY_KEY`

HipChat requires an application key `HIPCHAT_KEY` and the room to notify `HIPCHAT_ROOM`

More notifiers are easy to write, file an issue if there is something you would like!

## Installation

At the moment the easiest way to install Graphite-Pager is with Heroku! See
the example at

1. Install the package with Pip

`pip install -e git://`

2. Set Environment variables
GRAPHITE_USER=HTTP-basic username
GRAPHITE_PASS=HTTP-basic password
GRAPHITE_URL=HTTPS(hopefully) URL to your Graphite installation
PAGERDUTY_KEY=Specific PagerDuty application key
3. Set up alerts in the `alerts.yml` file

4. Run `graphite-pager`

graphite-pager --config alerts.yml

Where the file `alerts.yml` is in the following format.

# Configuration of Alerts

Configuration of alerts is handled by a YAML file.

## Documentation url

An attribute of `docs\_uls` in the configuration will add a link to the
documentation of the alert. Currently this is in the format of
`{docs\_url}/{alert name}#{alert legend name}`

## Alert Format

Alerts have 4 required arguments and 2 optional arguments.

Required arguments:

name - Name of thie alert group
warning - Int for a warning value
critical - Int for a critical value
target - Graphtie metric to check, best if aliased

Graphite Pager understands the values for warning and critical in order to
check < and >. If warning is less than critical, values above either will
trigger an alert. If warning is greater than critical than lower values will
trigger the alert.


Warning: 1
Critical: 2

0 is fine, 3 will be critical

Warning: 2
Critical: 1

0 is critical, 3 is fine.

Optional argument:

from - The Graphite `from` parameter for how long to query for ex. `-10min` default `-1min`

exclude - A list of targets to include. This must match the full target so it is recommended that you use the Graphite function alias() to make these readable.

### Ordering of Alerts

Alerts with the same name and target will only be checked once! This is useful
if you want to have a subset of metrics with different check times and/or


- name: Load
target: aliasByNode(servers.worker-*.loadavg01,1)
warning: 10
critical: 20

- name: Load
target: aliasByNode(servers.*.loadavg01,1)
warning: 5
critical: 10

Any worker-* nodes will alert for anything 10 or higher but the catchall
will allow for the remaining metrics to be checked without alerting for
worker nodes above 5


* Create a package
* Improve URLs to the graph
* Make it easy to add new notifiers

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graphitepager-0.0.7.tar.gz (7.1 kB) Copy SHA256 hash SHA256 Source None May 10, 2013

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