PuppetDB 4.3: Factsets endpoint

Included in Puppet Enterprise 2017.1.

You can query factsets by making an HTTP request to the /factsets endpoint.

A factset is the set of all facts for a single certname.

/pdb/query/v4/factsets

This will return all factsets matching the given query.

URL parameters

  • query: optional. A JSON array containing the query in prefix notation (["<OPERATOR>", "<FIELD>", "<VALUE>"]). See the sections below for the supported operators and fields. For general info about queries, see our guide to query structure.

If a query parameter is not provided, all results will be returned.

Query operators

See the AST query language page.

Query fields

  • certname (string): the certname associated with the factset.
  • environment (string): the environment associated with the fact.
  • timestamp (string): the most recent time of fact submission from the associated certname.
  • producer_timestamp (string): the most recent time of fact submission for the relevant certname from the master.
  • producer (string): the certname of the Puppet master that sent the factset to PuppetDB.
  • hash (string): a hash of the factset’s certname, environment, timestamp, facts, and producer_timestamp.

Subquery relationships

The following list contains related entities that can be used to constrain the result set using implicit subqueries. For more information, consult the documentation for subqueries.

  • environments: the environment a factset was received from.
  • facts: fact names and values received from a factset.
  • fact_contents: factset paths and values received from a factset.
  • nodes: the node that a factset was received from.
  • producers: the master that sent the factset to PuppetDB.

Response format

Successful responses will be in application/json. Errors will be returned as a non-JSON string.

The result will be a JSON array with one entry per certname. Each entry will be in the form:

{
  "certname": <node name>,
  "environment": <node environment>,
  "timestamp": <time of last fact submission>,
  "producer_timestamp": <time of command submission from master>,
  "producer": <master certname>
  "facts": <expanded facts>,
  "hash": <sha1 sum of "facts" value>
}

The <expanded facts> object is an expansion of the following form:

{
  "href": <url>,
  "data": [ {
    "name": <string>,
    "value": <any>
  } ... ]
}

Examples

Using curl from localhost:

Get the factset for node “example.com”:

curl -X GET http://localhost:8080/pdb/query/v4/factsets \
  --data-urlencode 'query=["=", "certname", "example.com"]'

Get all factsets with updated after “2014-07-21T16:13:44.334Z”:

curl -X GET http://localhost:8080/pdb/query/v4/factsets \
  --data-urlencode 'query=[">", "timestamp", "2014-07-21T16:13:44.334Z"]

Get all factsets corresponding to nodes with uptime greater than 24 hours:

curl -X GET http://localhost:8080/pdb/query/v4/factsets \
  -d 'query=["in", "certname",
              ["extract", "certname",
                ["select_facts", ["and", ["=", "name", "uptime_hours"],
                                         [">", "value", 24]]]]]'

Which returns:

[ {
  "facts" : {
    "href": "/pdb/query/v4/factsets/desktop.localdomain/facts",
    "data": [
      {
        "name": "blockdevice_sde_vendor",
        "value": "Generic"
      },
      {
        "name": "mtu_wlp5s0",
        "value": 1500
      },
      {
        "name": "processor6",
        "value": "Intel(R) Core(TM) i7-4790 CPU @ 3.60GHz"
      },
      {
        "name": "trusted",
        "value" : {
          "authenticated" : "remote",
          "certname" : "desktop.localdomain",
          "extensions" : { }
        },
      },
      {
        "name": "system_uptime",
        "value": {
          "days" : 5,
          "hours" : 120,
          "seconds" : 433391,
          "uptime" : "5 days"
        },
      },
      ...
    ]
  },
  "producer" : "master.localdomain",
  "producer_timestamp" : "2015-03-06T00:20:14.833Z",
  "timestamp" : "2015-03-06T00:20:14.918Z",
  "environment" : "production",
  "certname" : "desktop.localdomain",
  "hash" : "d118d161990f202e911b6fda09f79d24f3a5d4f4"
} ]

/pdb/query/v4/factsets/<NODE>

This will return the most recent factset for the given node. Supplying a node this way will restrict any given query to only apply to that node, but in practice this endpoint is typically used without a query string or URL parameters.

The result will be a single map of the factset structure described above, or a JSON error message if the factset is not found.

Examples

curl 'http://localhost:8080/pdb/query/v4/factsets/kb.local'

{
  "certname" : "kb.local",
  "environment" : "production",
  "facts" : {...},
  "hash" : "93253d31af6d718cf81f5bc028be2a671f23ed78",
  "producer" : "foo.local",
  "producer_timestamp" : "2015-06-04T15:27:56.893Z",
  "timestamp" : "2015-06-04T15:27:56.979Z"
}

curl -X GET http://localhost:8080/pdb/query/v4/factsets/my_fake_hostname

{
  "error" : "No information is known about factset my_fake_hostname"
}

/pdb/query/v4/factsets/<NODE>/facts

This will return all facts for a particular factset, designated by a node certname.

This is a shortcut to the /facts endpoint. It behaves the same as a call to /facts with a query string of ["=", "certname", "<NODE>"], except results are returned even if the node is deactivated or expired.

URL parameters / query operators / query fields / response format

This route is an extension of the facts endpoint. It uses the same parameters, operators, fields, and response format.

If you provide a query parameter, it will specify additional criteria, which will be used to return a subset of the information normally returned by this route.

Paging

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

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