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Sensu Go PagerDuty Handler

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README
Release Notes

Sensu Go PagerDuty Handler

TravisCI: TravisCI Build Status

The Sensu Go PagerDuty Handler is a Sensu Event Handler which manages PagerDuty incidents, for alerting operators. With this handler, Sensu can trigger and resolve PagerDuty incidents.

Installation

Download the latest version of the sensu-pagerduty-handler from releases, or create an executable script from this source.

From the local path of the sensu-pagerduty-handler repository:

go build -o /usr/local/bin/sensu-pagerduty-handler main.go

Configuration

Example Sensu Go handler definition:

{
    "api_version": "core/v2",
    "type": "Handler",
    "metadata": {
        "namespace": "default",
        "name": "pagerduty"
    },
    "spec": {
        "type": "pipe",
        "command": "sensu-pagerduty-handler",
        "env_vars": [
          "PAGERDUTY_TOKEN=SECRET",
          "PAGERDUTY_DEDUP_KEY=SENSU_EVENT_LABEL",
          "PAGERDUTY_DEDUP_KEY_TEMPLATE={{.Entity.Name}}-{{.Check.Name}}",
          "PAGERDUTY_STATUS_MAP={\"info\":[130,10],\"error\":[4]}"
        ],
        "timeout": 10,
        "filters": [
            "is_incident"
        ]
    }
}

Example Sensu Go check definition:

{
    "api_version": "core/v2",
    "type": "CheckConfig",
    "metadata": {
        "namespace": "default",
        "name": "dummy-app-healthz"
    },
    "spec": {
        "command": "check-http -u http://localhost:8080/healthz",
        "subscriptions":[
            "dummy"
        ],
        "publish": true,
        "interval": 10,
        "handlers": [
            "pagerduty"
        ]
    }
}

Usage Examples

Help:

Usage:
  sensu-pagerduty-handler [flags]

Flags:
  -d, --dedup-key string            The Sensu event label specifying the PagerDuty V2 API deduplication key, use default from PAGERDUTY_DEDUP_KEY env var
  -k, --dedup-key-template string   The PagerDuty V2 API deduplication key template, use default from PAGERDUTY_DEDUP_KEY_TEMPLATE env var
  -h, --help                        help for sensu-pagerduty-handler
  -s, --status-map string           The status map used to translate a Sensu check status to a PagerDuty severity, use default from PAGERDUTY_STATUS_MAP env var
  -t, --token string                The PagerDuty V2 API authentication token, use default from PAGERDUTY_TOKEN env var

Note: Make sure to set the PAGERDUTY_TOKEN environment variable for sensitive credentials in production to prevent leaking into system process table. Please remember command arguments can be viewed by unprivileged users using commands such as ps or top. The --token argument is provided as an override primarily for testing purposes.

Deduplication Key Priority

The deduplication key is determined using the following priority:

  1. --dedup-key -- specifies the entity label containing the key
  2. --dedup-key-template -- a template containing the values
  3. the default value containing the entity and check names

PagerDuty Severity Mapping

Optionally you can provide mapping information between the Sensu check status and the PagerDuty incident severity. To provide the mapping you need to use the --status-map command line option or the PAGERDUTY_STATUS_MAP environment variable. The option accepts a JSON document containing the mapping information. Here's an example of the JSON document:

{
    "info": [
        0,
        1
    ],
    "warning": [
        2
    ],
    "critical:": [
        3
    ],
    "error": [
        4,
        5,
        6,
        7,
        8,
        9,
        10
    ]
}

The valid PagerDuty alert severity levels are the following:

  • info
  • warning
  • critical
  • error

Contributing

See https://github.com/sensu/sensu-go/blob/master/CONTRIBUTING.md

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