isabella232 / graphite-beacon

Simple alerting system for Graphite metrics

graphite-beacon

Simple alerting system for Graphite metrics.

Features:

• Simplest installation (one python package dependency);
• No software dependencies (Databases, AMQP and etc);
• Light and full asyncronous;
• SMTP, Hipchat handlers (Please make a request for additional handlers);
• Easy configurable and support "historical values"

Example:

{
"graphite_url": "http://g.server.org"
"smtp": {
    "from": "[email protected]",
    "to": ["[email protected]"]
},
"alerts": [
    {   "name": "MEM",
        "format": "bytes",
        "query": "aliasByNode(sumSeriesWithWildcards(collectd.*.memory.{memory-free,memory-cached}, 3), 1)",
        "rules": ["critical: < 200MB", "warning: < 400MB", "warning: < historical / 2"] },
    {   "name": "CPU",
        "format": "percent",
        "query": "aliasByNode(sumSeriesWithWildcards(collectd.*.cpu-*.cpu-user, 2), 1)",
        "rules": ["critical: >= 80%", "warning: >= 70%"] },
]}

Requirements

• python (2.7, 3.3, 3.4)
• tornado

Run with Docker

Build a config.json file and run :

docker run -v /path/to/config.json:/config.json deliverous/graphite-beacon

Installation

Python package

Graphite-beacon could be installed using pip:

pip install graphite-beacon

Debian package

Using the command line, add the following to your /etc/apt/sources.list system config file:

echo "deb http://dl.bintray.com/klen/deb /" | sudo tee -a /etc/apt/sources.list 
echo "deb-src http://dl.bintray.com/klen/deb /" | sudo tee -a /etc/apt/sources.list

Install the package using apt-get:

apt-get update
apt-get install graphite-beacon

Ansible role

There is an ansible role to install the package: https://github.com/Stouts/Stouts.graphite-beacon

Docker

To run this Docker container just run:

docker run -v /path/to/config.json:/config.json deliverous/graphite-beacon

Usage

Just run graphite-beacon:

$ graphite-beacon
[I 141025 11:16:23 core:141] Read configuration
[I 141025 11:16:23 core:55] Memory (10minute): init
[I 141025 11:16:23 core:166] Loaded with options:
...

Configuration

---

Time units:

'2second', '3.5minute', '4hour', '5.2day', '6week', '7month', '8year'

short formats are: '2s', '3m', '4.1h' ...

Value units:

short: '2K', '3Mil', '4Bil', '5Tri'

bytes: '2KB', '3MB', '4GB'

bits: '2Kb', '3Mb', '4Gb'

bps: '2Kbps', '3Mbps', '4Gbps'

time: '2s', '3m', '4h', '5d'

Graphite-beacon default options are:

Comment lines are not allowed in JSON, but Graphite-beacon strips them

    {
        // Path to a configuration
        "config": "config.json",

        // Graphite server URL
        "graphite_url": "http://localhost",

        // HTTP AUTH username
        "auth_usernamename": null,

        // HTTP AUTH password
        "auth_password": null,

        // Path to a pidfile
        "pidfile": null,

        // Default values format (none, bytes, s, ms, short)
        // Can be redfined for each alert.
        "format": "short",

        // Default query interval
        // Can be redfined for each alert.
        "interval": "10minute",

        // Notification repeat interval
        // If an alert is failed, its notification will be repeated with the interval below
        "repeat_interval": "2hour",

        // Default loglevel
        "logging": "info",

        // Default method (average, last_value, sum).
        // Can be redfined for each alert.
        "method": "average",

        // Default prefix (used for notifications)
        "prefix": "[BEACON]",

        // Default handlers (log, smtp, hipchat, http)
        "critical_handlers": ["log", "smtp"],
        "warning_handlers": ["log", "smtp"],
        "normal_handlers": ["log", "smtp"],

        // Send initial values (Send current values when reactor starts)
        "send_initial": true,

        // Default alerts (see configuration below)
        "alerts": []
    }

You can setup options with a configuration file. See example-config.json.

Include

You can include any configuration files:

...
"include": [ "path/to/config1.json", "path/to/config2.json"]

Setup alerts

At the moment Graphite-beacon supports two type of alerts:

• Graphite alert (default) - check graphite metrics
• URL alert (default) - load http and check status

Comment lines are not allowed in JSON, but Graphite-beacon strips them

  "alerts": [
    {
      // (required) Alert name
      "name": "Memory",

      // (required) Alert query
      "query": "*.memory.memory-free",

      //(optional) Alert type (graphite, url)
      "source": "graphite",

      //(optional)  Default values format (none, bytes, s, ms, short)
      "format": "bytes",

      // (optional) Alert method (average, last_value, sum)
      "method": "average",

      // (optional) Alert interval [eg. 15second, 30minute, 2hour, 1day, 3month, 1year]
      "interval": "1minute",

      // (required) Alert rules
      // Rule format: "{level}: {operator} {value}"
      // Level one of [critical, warning, normal]
      // Operator one of [>, <, >=, <=, ==, !=]
      // Value (absolute value: 3000000 or short form like 3MB/12minute)
      "rules": [ "critical: < 200MB", "warning: < 300MB" ]
    }
  ]

Historical values

Graphite-beacon supports "historical" values for a rule. By example, you want to get warning when CPU usage is more than 150% from normal usage:

"warning: > historical * 1.5"

Or memory is twice less than usual:

"warning: < historical / 2"

Graphite-beacon keeps history of values for each target in metric. Historical value is average of values from history. "Historical" rule becames work when it has enough values (Read about history size bellow).

History size is equal 60 by default. You can change it by using Reactor option 'history_size'.

By example, send warning when today' new user is less than 80% of average for last 10 days:

...
alerts: [
...
{
  "name": "Registrations",
  // Run once per day
  "interval": "1day",
  "query": "Your graphite query here",
  // Get average for last 10 days
  "history_size": 10,
  "rules": [
    // Warning if today's new user less than 80% of average for 10 days
    "warning: < historical * 0.8",
   // Critical if today's new user less than 50% of average for 10 days
    "critical: < historical * 0.5"
  ]
}
...
],
...

Setup SMTP

Enable "smtp" handler (enabled by default) and set the options in your beacon configuration.

{
    ...
    // SMTP default options
    "smtp": {

        // Set from email
        "from": "beacon@graphite",

        // Set "to" email
        "to": [],

        // Set SMTP host
        "host": "localhost",

        // Set SMTP port
        "port": 25,

        // Set SMTP user
        "username": null,

        // Set SMTP password
        "password": null,

        // Use TLS
        "use_tls": false,

        // Send HTML emails
        "html": true,

        // Graphite link for emails (By default is equal to main graphite_url)
        "graphite_url": null

    }

    ...
}

Setup HipChat

Enable "hipchat" handler and set the options in your beacon configuration.

{
    ...
    "hipchat": {
        "room": "myroom",
        "key": "mykey"
    }
    ...
}

Setup HttpHandler

Enable "http" handler and set the options in your beacon configuration.

{
    ...
    "http": {
        "url": "http://myhook.com",

        // (optional) Additional query(data) params
        "params": {},

        // (optional) HTTP method
        "method": "GET"

    }
    ...
}

Command line

  $ graphite-beacon --help
  Usage: graphite-beacon [OPTIONS]

  Options:

    --config                         Path to an configuration file (YAML)
                                    (default config.json)
    --graphite_url                   Graphite URL (default http://localhost)
    --help                           show this help information
    --pidfile                        Set pid file

    --log_file_max_size              max size of log files before rollover
                                    (default 100000000)
    --log_file_num_backups           number of log files to keep (default 10)
    --log_file_prefix=PATH           Path prefix for log files. Note that if you
                                    are running multiple tornado processes,
                                    log_file_prefix must be different for each
                                    of them (e.g. include the port number)
    --log_to_stderr                  Send log output to stderr (colorized if
                                    possible). By default use stderr if
                                    --log_file_prefix is not set and no other
                                    logging is configured.
    --logging=debug|info|warning|error|none
                                    Set the Python log level. If 'none', tornado
                                    won't touch the logging configuration.
                                    (default info)

Bug tracker

If you have any suggestions, bug reports or annoyances please report them to the issue tracker at https://github.com/klen/graphite-beacon/issues

Contributors

• Kirill Klenov (https://github.com/klen, [email protected])

• Thomas Clavier (https://github.com/tclavier)

License

Licensed under a MIT license