PuppetDB 4.4: Event counts endpoint

This version of PuppetDB is not included in Puppet Enterprise. The latest version of PE includes PuppetDB 4.3.

Experimental endpoint: The event-counts endpoint is designated as experimental. It may be altered or removed in a future release.

Puppet agent nodes submit reports after their runs, and the Puppet master forwards these to PuppetDB. Each report includes:

  • Data about the entire run
  • Metadata about the report
  • Many events, describing what happened during the run

Once this information is stored in PuppetDB, it can be queried in various ways.

  • You can query data about the run and report metadata by making an HTTP request to the /reports endpoint.
  • You can query data about individual events by making an HTTP request to the /events endpoint.
  • You can query summaries of event data by making an HTTP request to the /event-counts or aggregate-event-counts endpoints.

/pdb/query/v4/event-counts

Returns count information about all of the resource events matching the given query. For a given object type (resource, containing_class, or node), you can retrieve counts of the number of events on objects of that type that had a status of success, failure, noop, or skip.

See the events endpoint for additional documentation, as this endpoint builds heavily on it.

URL parameters

  • query: optional. A JSON array of query predicates in prefix form (["<OPERATOR>", "<FIELD>", "<VALUE>"]). This query is forwarded to the [events] endpoint; additional information about this endpoint can be found here. For general info about queries, see our guide to query structure.

  • summarize_by: required. A string specifying which type of object you’d like to see counts for. Supported values are resource, containing_class, and certname.

  • count_by: optional. A string specifying what type of object is counted when building up the counts of successes, failures, noops, and skips. Supported values are resource (default) and certname.

  • counts_filter: optional. A JSON array of query predicates in the usual prefix form. This query is applied to the final event counts output. Supported operators are =, >, <, >=, and <=. Supported fields are failures, successes, noops, and skips.

  • distinct_resources: optional. (Experimental: it is possible that the behavior of this parameter may change in future releases.) This parameter is passed along to the events query. See the events documentation for more information.

Query operators

This endpoint builds on top of the events endpoint, and supports all of the same operators.

Query fields

This endpoint builds on top of the events endpoint, and supports all of the same fields.

Response format

The response is a JSON array of maps. Each map contains the counts of events that matched the input parameters. The events are counted based on their statuses: failures, successes, noops, skips.

The maps also contain additional data about which object the events occurred on. The subject_type is the value that was used to summarize by (and therefore should match the input value to summarize_by). The subject map contains specific data about the object the event occurred on, and will vary based on the value specified for summarize_by.

When summarizing by certname, the subject will contain a title key:

[
  {
    "subject_type": "certname",
    "subject": { "title": "foo.local" },
    "failures": 0,
    "successes": 2,
    "noops": 0,
    "skips": 1
  },
  {
    "subject_type": "certname",
    "subject": { "title": "bar.local" },
    "failures": 1,
    "successes": 0,
    "noops": 0,
    "skips": 1
  }
]

When summarizing by resource, the subject will contain type and title keys:

[
  {
    "subject_type": "resource",
    "subject": { "type": "Notify", "title": "Foo happened" },
    "failures": 0,
    "successes": 1,
    "noops": 0,
    "skips": 0
  },
  {
    "subject_type": "resource",
    "subject": { "type": "Notify", "title": "Bar happened" },
    "failures": 0,
    "successes": 0,
    "noops": 0,
    "skips": 1
  }
]

When summarizing by containing_class, the subject will contain a title key:

[
  {
    "subject_type": "containing_class",
    "subject": { "title": "Foo::Class" },
    "failures": 1,
    "successes": 2,
    "noops": 0,
    "skips": 1
  },
  {
    "subject_type": "containing_class",
    "subject": { "title": null },
    "failures": 0,
    "successes": 0,
    "noops": 2,
    "skips": 0
  }
]

Puppet Enterprise

In PE, the successes and noops counts are subdivided into intentional and corrective parts. Events are mapped to the corresponding counts based on the value of corrective_change flag.

[
  {
    "subject_type": "certname",
    "subject": { "title": "foo.local" },
    "failures": 0,
    "intentional_successes": 2,
    "corrective_successes": 0,
    "intentional_noops": 0,
    "corrective_noops": 0,
    "skips": 1
  },
  {
    "subject_type": "certname",
    "subject": { "title": "bar.local" },
    "failures": 1,
    "intentional_successes": 0,
    "corrective_successes": 0,
    "intentional_noops": 0,
    "corrective_noops": 0,
    "skips": 1
  }
]

intentional_successes, corrective_successes, intentional_noops, and corrective_noops fields can be used in counts_filter too.

Examples

You can use curl to query information about resource event counts:

curl -G 'http://localhost:8080/pdb/query/v4/event-counts' \
  --data-urlencode 'query=["=", "certname", "foo.local"]' \
  --data-urlencode 'summarize_by=resource' \
  --data-urlencode 'count_by=certname' \
  --data-urlencode 'counts_filter=[">", "failures", 0]'

Paging

This endpoint supports paged results via the common PuppetDB paging URL parameters. For more information, please see the documentation on paging.

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