Collects OpenStack Keystone module metrics
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This project will no longer be maintained by Intel. Intel will not provide or guarantee development of or support for this project, including but not limited to, maintenance, bug fixes, new releases or updates. Patches to this project are no longer accepted by Intel. If you have an ongoing need to use this project, are interested in independently developing it, or would like to maintain patches for the community, please create your own fork of the project.

Snap plugin collector - keystone

Snap plugin for collecting metrics from OpenStack Keystone module.

  1. Getting Started
  1. Documentation
  1. Community Support
  2. Contributing
  3. License
  4. Acknowledgements

Getting Started

Plugin collects metrics by communicating with OpenStack by REST API. It can run locally on the host, or in proxy mode (communicating with the host via HTTP(S)).

System Requirements

  • OpenStack deployment available
  • Supports Keystone V2 and V3 authorization APIs

Operating systems

All OSs currently supported by Snap:

  • Linux/amd64


Download the plugin binary:

You can get the pre-built binaries for your OS and architecture from the plugin's GitHub Releases page. Download the plugin from the latest release and load it into snapteld (/opt/snap/plugins is the default location for Snap packages).

To build the plugin binary:

Fork Clone repo into $GOPATH/src/

$ git clone<yourGithubID>/snap-plugin-collector-keystone.git

Build the Snap keystone plugin by running make within the cloned repo:

$ make

This builds the plugin in ./build/

Configuration and Usage

  • Set up the Snap framework.
  • Create Global Config, see description in [Snap's Global Config] (#snaps-global-config).
  • Load the plugin and create a task, see example in Examples.


  • It is not recommended to set interval for task less than 20 seconds. This may lead to overloading Keystone API with requests.


Collected Metrics

This plugin has the ability to gather the following metrics:

Namespace Data Type Description
intel/openstack/keystone/<tenant_name>/users_count int Total number of users for given tenant
intel/openstack/keystone/total_tenants_count int Total number of tenants
intel/openstack/keystone/total_users_count int Total number of users
intel/openstack/keystone/total_endpoints_count int Total number of endpoints
intel/openstack/keystone/total_services_count int Total number of services

Snap's Global Config

Global configuration files are described in Snap's documentation. You have to add section "keystone" in "collector" section and then specify following options:

  • "admin_endpoint" - URL for OpenStack Identity admin endpoint (ex. "")
  • "admin_user" - administrator user name
  • "admin_password" - administrator password
  • "admin_tenant" - administration tenant If you're using authentication API in v3 you need to set one of those two configuration options:
  • "domain_name" - domain name
  • "domain_id" - domain name

Example global configuration file for snap-plugin-collector-keystone plugin (exemplary file in [examples/cfg] (examples/cfg/cfg.json)):


Example of running Snap keystone collector and writing data to file.

Download an example Snap global config file (for more details, read about snapteld Configuration File).

$ curl -sfLO > /etc/snap/snapteld.conf

Ensure to provide your Keystone instance address and credentials.

Ensure Snap daemon is running with provided configuration file:

  • initd: sudo service snap-telemetry start
  • systemd: sudo systemctl start snap-telemetry
  • command line: sudo snapteld -l 1 -t 0 &

Download and load Snap plugins:

$ wget
$ wget
$ chmod 755 snap-plugin-*
$ snaptel plugin load snap-plugin-collector-keystone
$ snaptel plugin load snap-plugin-publisher-file

See all available metrics:

$ snaptel metric list

Download an example task file and load it:

$ curl -sfLO
$ snaptel task create -t task.json
Using task manifest to create task
Task created
ID: 02dd7ff4-8106-47e9-8b86-70067cd0a850
Name: Task-02dd7ff4-8106-47e9-8b86-70067cd0a850
State: Running

See realtime output from snaptel task watch <task_id> (CTRL+C to exit)

$ snaptel task watch 02dd7ff4-8106-47e9-8b86-70067cd0a850

This data is published to a file /tmp/published_keystone per task specification

Stop task:

$ snaptel task stop 02dd7ff4-8106-47e9-8b86-70067cd0a850
Task stopped:
ID: 02dd7ff4-8106-47e9-8b86-70067cd0a850


There isn't a current roadmap for this plugin, but it is in active development. As we launch this plugin, we do not have any outstanding requirements for the next release.

Community Support

This repository is one of many plugins in Snap, a powerful telemetry framework. See the full project at

To reach out to other users, head to the main framework.


We love contributions!

There's more than one way to give back, from examples to blogs to code updates. See our recommended process in


Snap, along with this plugin, is an Open Source software released under the Apache 2.0 License.