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google_project_metric resource

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Syntax

A google_project_metric is used to test a Google Metric resource

Examples

describe google_project_metric(project: 'chef-gcp-inspec', name: 'some/metric') do
  it { should exist }
  its('filter') { should cmp 'resource.type=gae_app AND severity>=ERROR' }
  its('metric_descriptor.metric_kind') { should cmp 'DELTA' }
  its('metric_descriptor.value_type') { should cmp 'INT64' }
end

describe google_project_metric(project: 'chef-gcp-inspec', name: 'nonexistent') do
  it { should_not exist }
end

Test that a GCP project metric exists

describe google_project_metric(project: 'chef-inspec-gcp',  metric: 'metric_name') do
  it { should exist }
end

Test that a GCP compute zone has an expected CPU platform

describe google_project_metric(project: 'chef-inspec-gcp',  metric: 'metric_name') do
  its('filter') { should eq "(protoPayload.serviceName=\"cloudresourcemanager.googleapis.com\")" }
end

Properties

Properties that can be accessed from the google_project_metric resource:

name
The client-assigned metric identifier. Examples - “error*count”, “nginx/requests”. Metric identifiers are limited to 100 characters and can include only the following characters A-Z, a-z, 0-9, and the special characters *-.,+!*',()%/. The forward-slash character (/) denotes a hierarchy of name pieces, and it cannot be the first character of the name.
description
A description of this metric, which is used in documentation. The maximum length of the description is 8000 characters.
filter
An advanced logs filter (https://cloud.google.com/logging/docs/view/advanced-filters) which is used to match log entries.
metric_descriptor
The metric descriptor associated with the logs-based metric.
unit
The unit in which the metric value is reported. It is only applicable if the valueType is INT64, DOUBLE, or DISTRIBUTION. The supported units are a subset of The Unified Code for Units of Measure standard
value_type
Whether the measurement is an integer, a floating-point number, etc. Some combinations of metricKind and valueType might not be supported. For counter metrics, set this to INT64.

Possible values:

  • BOOL
  • INT64
  • DOUBLE
  • STRING
  • DISTRIBUTION
  • MONEY
metric_kind
Whether the metric records instantaneous values, changes to a value, etc. Some combinations of metricKind and valueType might not be supported. For counter metrics, set this to DELTA.

Possible values:

  • DELTA
  • GAUGE
  • CUMULATIVE
labels
The set of labels that can be used to describe a specific instance of this metric type. For example, the appengine.googleapis.com/http/server/response_latencies metric type has a label for the HTTP response code, response_code, so you can look at latencies for successful responses or just for responses that failed.
key
The label key.
description
A human-readable description for the label.
value_type
The type of data that can be assigned to the label.

Possible values:

  • BOOL
  • INT64
  • STRING
display_name
A concise name for the metric, which can be displayed in user interfaces. Use sentence case without an ending period, for example “Request count”. This field is optional but it is recommended to be set for any metrics associated with user-visible concepts, such as Quota.
type
The metric type, including its DNS name prefix. The type is not URL-encoded. All user-defined metric types have the DNS name custom.googleapis.com or external.googleapis.com.
label_extractors
A map from a label key string to an extractor expression which is used to extract data from a log entry field and assign as the label value. Each label key specified in the LabelDescriptor must have an associated extractor expression in this map. The syntax of the extractor expression is the same as for the valueExtractor field.
value_extractor
A valueExtractor is required when using a distribution logs-based metric to extract the values to record from a log entry. Two functions are supported for value extraction - EXTRACT(field) or REGEXP_EXTRACT(field, regex). The argument are 1. field - The name of the log entry field from which the value is to be extracted. 2. regex - A regular expression using the Google RE2 syntax (https://github.com/google/re2/wiki/Syntax) with a single capture group to extract data from the specified log entry field. The value of the field is converted to a string before applying the regex. It is an error to specify a regex that does not include exactly one capture group.
bucket_options
The bucketOptions are required when the logs-based metric is using a DISTRIBUTION value type and it describes the bucket boundaries used to create a histogram of the extracted values.
linear_buckets
Specifies a linear sequence of buckets that all have the same width (except overflow and underflow). Each bucket represents a constant absolute uncertainty on the specific value in the bucket.
num_finite_buckets
Must be greater than 0.
width
Must be greater than 0.
offset
Lower bound of the first bucket.
exponential_buckets
Specifies an exponential sequence of buckets that have a width that is proportional to the value of the lower bound. Each bucket represents a constant relative uncertainty on a specific value in the bucket.
num_finite_buckets
Must be greater than 0.
growth_factor
Must be greater than 1.
scale
Must be greater than 0.
explicit_buckets
Specifies a set of buckets with arbitrary widths.
bounds
The values must be monotonically increasing.

GCP Permissions

Ensure the Stackdriver Logging API is enabled for the current project.

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