Bug 2080040 - [RFE][RHOSP 18.0] Implement Prometheus-native scrape endpoint in Ceilometer notification agent
Summary: [RFE][RHOSP 18.0] Implement Prometheus-native scrape endpoint in Ceilometer n...
Keywords:
Status: POST
Alias: None
Product: Red Hat OpenStack
Classification: Red Hat
Component: openstack-ceilometer
Version: 18.0 (Zed)
Hardware: Unspecified
OS: Unspecified
urgent
medium
Target Milestone: Alpha
: 18.0
Assignee: Jaromír Wysoglad
QA Contact: Leonid Natapov
mgeary
URL:
Whiteboard:
Depends On:
Blocks: 2084206 2114652 2130876
TreeView+ depends on / blocked
 
Reported: 2022-04-28 19:31 UTC by Leif Madsen
Modified: 2023-08-17 08:33 UTC (History)
3 users (show)

Fixed In Version:
Doc Type: Enhancement
Doc Text:
Clone Of:
: 2114652 2130876 (view as bug list)
Environment:
Last Closed:
Target Upstream Version:
Embargoed:

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Links
System ID Private Priority Status Summary Last Updated
OpenStack gerrit 845485 0 None NEW Prometheus exporter spec 2022-08-10 12:11:25 UTC
Red Hat Issue Tracker OSP-14943 0 None None None 2022-04-28 19:40:30 UTC

Description Leif Madsen 2022-04-28 19:31:17 UTC 
Description of problem: It is not possible to scrape Ceilometer with Prometheus to gather metrics data. The existing prometheus publisher in Ceilometer is actually a wrapper on the HTTP publisher to push information to the pushgateway.

Unfortunately there are issues with this approach (as documented in the investigation spike STF-972). Metrics overwrite each other regardless of differing labels, making the pushgateway scenario non-viable.

This epic covers the work required to result in a plugin to Ceilometer that provides a native scrape endpoing for Prometheus to connect to as part of the ceilometer_notification_agent.

Version-Release number of selected component (if applicable): RHOSP 18.0
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