Post request to thanos is not working from grafana

[jatindersandhu]

Hi,
We have openshift cluster. We are tanent in cluster want to see POD level matrics. Openshift team give us thanos url , it is working fine for GET request but give ERROR Bad Gateway on POST request. We are using thanos tanent port 9092. Is thanos support POST level Request
Here is version
sh-4.4$ thanos --version
thanos, version 0.17.2 (branch: rhaos-4.7-rhel-8, revision: e08776699e995facd3260ebfec4c29c4d3bd4943)
build user: root@3d4eeeb5b403
build date: 20210521-04:48:20
go version: go1.15.7
platform: linux/amd64

[jatindersandhu]

any update please

[GiedriusS]

Yes, it does

thanos/pkg/api/query/v1.go

Lines 162 to 190 in 47a0015

	func (qapi *QueryAPI) Register(r *route.Router, tracer opentracing.Tracer, logger log.Logger, ins extpromhttp.InstrumentationMiddleware, logMiddleware *logging.HTTPServerMiddleware) {
	qapi.baseAPI.Register(r, tracer, logger, ins, logMiddleware)
	instr := api.GetInstr(tracer, logger, ins, logMiddleware, qapi.disableCORS)
	r.Get("/query", instr("query", qapi.query))
	r.Post("/query", instr("query", qapi.query))
	r.Get("/query_range", instr("query_range", qapi.queryRange))
	r.Post("/query_range", instr("query_range", qapi.queryRange))
	r.Get("/label/:name/values", instr("label_values", qapi.labelValues))
	r.Get("/series", instr("series", qapi.series))
	r.Post("/series", instr("series", qapi.series))
	r.Get("/labels", instr("label_names", qapi.labelNames))
	r.Post("/labels", instr("label_names", qapi.labelNames))
	r.Get("/stores", instr("stores", qapi.stores))
	r.Get("/rules", instr("rules", NewRulesHandler(qapi.ruleGroups, qapi.enableRulePartialResponse)))
	r.Get("/targets", instr("targets", NewTargetsHandler(qapi.targets, qapi.enableTargetPartialResponse)))
	r.Get("/metadata", instr("metadata", NewMetricMetadataHandler(qapi.metadatas, qapi.enableMetricMetadataPartialResponse)))
	r.Get("/query_exemplars", instr("exemplars", NewExemplarsHandler(qapi.exemplars, qapi.enableExemplarPartialResponse)))
	r.Post("/query_exemplars", instr("exemplars", NewExemplarsHandler(qapi.exemplars, qapi.enableExemplarPartialResponse)))

. Please take a look at the logs to see what is wrong. I hope this helps.

[jatindersandhu]

Thanks for confirmation. We also test on main thanos port it is working but the problem here is that we have multi tenants environment. For that we use prom_label_proxy and create new thanos tenant port (9092) , on which only GET is working not POST.