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9 commits

Author SHA1 Message Date
Aliaksandr Valialkin
133b288681 lib/promscrape/discovery/kubernetes: use a single watcher per apiURL 
Previously multiple scrape jobs could create multiple watchers for the same apiURL. Now only a single watcher is used.
This should reduce load on Kubernetes API server when many scrape job configs use Kubernetes service discovery.
 2021-03-11 16:43:04 +02:00
Aliaksandr Valialkin
bebcb8130c lib/promscrape/discovery/kubernetes: localize Bookmark parsing code 
This is a follow-up for e772d1c920
 2021-03-11 13:08:08 +02:00
Aliaksandr Valialkin
e772d1c920 lib/promscrape/discovery/kubernetes: reduce load on Kubernetes API server by using watch bookmarks 
This allows continuing object watch from the last bookbark instead of reloading all the objects
on watch errors or timeouts.

See https://kubernetes.io/docs/reference/using-api/api-concepts/#watch-bookmarks
 2021-03-10 15:06:35 +02:00
Aliaksandr Valialkin
815666e6a6 lib/promscrape/discovery/kubernetes: cache target labels 
This should reduce CPU usage on repeated SDConfig.GetLabels() calls.
 2021-02-26 20:23:28 +02:00
Aliaksandr Valialkin
c8f2f9b2e8 lib/promscrape: cleanup after 9b2246c29b 
Main points:

* Revert changes outside lib/promscrape/discovery/kuberntes . These changes can be applied later in a separate commit
* Minimize changes in lib/promscrape/discovery/kubernetes compared to a93e644001
* Corner case fixes.
 2021-02-26 16:54:05 +02:00
Nikolay
9b2246c29b
vmagent kubernetes watch stream discovery. (#1082) 
* started work on sd for k8s

* continue work on watch sd

* fixes

* continue work

* continue work on sd k8s

* disable gzip

* fixes typos

* log errror

* minor fix

Co-authored-by: Aliaksandr Valialkin <valyala@gmail.com>
 2021-02-26 16:46:13 +02:00
Nikolay
b21e16ad0c
fixes kubernetes_sd (#983) 
* fixes kubernetes_sd,
adds missing service metadata for pod ports without endpoint
https://github.com/VictoriaMetrics/VictoriaMetrics/issues/982

* fix test
 2020-12-24 11:26:14 +02:00
Aliaksandr Valialkin
0e19f35af5 lib/promscrape/discovery/dns: add __meta_dns_srv_record_target and __meta_dns_srv_record_port labels 
This syncs dns service discovery with Prometheus 2.21 - see https://github.com/prometheus/prometheus/releases
and https://github.com/prometheus/prometheus/pull/7678 .
 2020-09-11 23:39:13 +03:00
Nikolay Khramchikhin
6c80ae0da8
Added endpointslices discovery to k8s api (#760) 
This is similar to https://github.com/prometheus/prometheus/pull/6838 , which will be added in Prometheus v2.21.
See https://github.com/prometheus/prometheus/releases/tag/v2.21.0-rc.1

* Added endpointslices discovery to k8s api

Started from 1.17 k8s version endpointslices is beta,
it allows to query k8s api for endpoints more efficient.
It presents at scrape_config.yaml as separate role for kubernetes_sd_config.
kubernetes_sd_config:
- role: endpointslices

* fixed typos, changed EndpointConditions signature - with values instead of pointers
 2020-09-11 12:16:45 +03:00