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feat: Prometheus metrics support #2204

Merged
merged 10 commits into from
Jun 28, 2022
Merged

feat: Prometheus metrics support #2204

merged 10 commits into from
Jun 28, 2022

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yoonsio
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@yoonsio yoonsio commented Apr 17, 2022

This PR adds support for Prometheus metrics and endpoint.

  • add configurable Prometheus metrics endpoint
  • dynamic subscope-based metric names
  • expose tally.Reporter to server struct for Prometheus handler (tally.Scope does not expose underlying Reporter)

Due to the limitation of tally, it is not possible to support both Statsd and Prometheus metrics at the same time.

Related Issue: #258

@yoonsio yoonsio requested a review from a team as a code owner April 17, 2022 16:26
@yoonsio yoonsio mentioned this pull request Apr 17, 2022
@yoonsio yoonsio changed the title Feature: Prometheus metrics support feat: Prometheus metrics support Apr 17, 2022
@yoonsio
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yoonsio commented May 2, 2022

@jamengual Would appreciate if I could get some eyes on this. I think prometheus metrics would bring a lot of value to this project.

@jamengual
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Hi @yoonsio thank you for the contribution!!

I will need @nishkrishnan or @msarvar to take a look at this when they have some time.

@ribejara-te
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+1 on this, we'd love to have this feature!

@jamengual jamengual added feature New functionality/enhancement waiting-on-review Waiting for a review from a maintainer labels May 13, 2022
@jamengual
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@yoonsio could you fix the conflicts please and pull from master ( we fixed some tests)

@jamengual jamengual added the waiting-on-response Waiting for a response from the user label Jun 10, 2022
@yoonsio
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yoonsio commented Jun 22, 2022

@jamengual I rebased off the latest master. Tested working.

@mustafa89
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Would be great to have this.

@jamengual jamengual merged commit e90aa57 into runatlantis:master Jun 28, 2022
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LGTM

@jamengual
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@yoonsio could it be possible to add some docs and examples on how to use it?

@yoonsio
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yoonsio commented Jun 29, 2022

@jamengual okay I will have a PR open in coming days

@mustafa89
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mustafa89 commented Aug 4, 2022

this is breaking for us.

We noticed yesterday after adding this endpoint that the projects locks were not being released after an MR was being merged in our Gitlab.

Upon investigation we saw this:

2022/08/04 09:28:23 PANIC: descriptor Desc{fqName: "atlantis_pullclosed.cleanup_execution_success", help: "atlantis_pullclosed.cleanup_execution_success counter", constLabels: {}, variableLabels: []} is invalid: "atlantis_pullclosed.cleanup_execution_success" is not a valid metric name
goroutine 376 [running]:
github.com/urfave/negroni.(*Recovery).ServeHTTP.func1()
	github.com/urfave/[email protected]/recovery.go:159 +0xc7
panic({0x10d5fa0, 0xc000935a10})
	runtime/panic.go:1038 +0x215
github.com/uber-go/tally/prometheus.NewReporter.func1({0x1535c60, 0xc000935a10})
	github.com/uber-go/[email protected]+incompatible/prometheus/reporter.go:306 +0x68
github.com/uber-go/tally/prometheus.(*reporter).AllocateCounter(0xc0007499e0, {0xc0001aa330, 0x2d}, 0x1517f08)
	github.com/uber-go/[email protected]+incompatible/prometheus/reporter.go:366 +0x11f
github.com/uber-go/tally.(*scope).Counter(0xc000ba0000, {0x13100d3, 0xc000909720})
	github.com/uber-go/[email protected]+incompatible/scope.go:280 +0x173
github.com/runatlantis/atlantis/server/events.(*InstrumentedPullClosedExecutor).CleanUpPull(_, {{0xc00040ac18, 0x13}, {0xc00040ac18, 0x8}, {0xc00040ac21, 0xa}, {0xc00011f200, 0x51}, {0xc0008fb040, ...}, ...}, ...)
	github.com/runatlantis/atlantis/server/events/instrumented_pull_closed_executor.go:35 +0x1a3
github.com/runatlantis/atlantis/server/controllers/events.(*VCSEventsController).handlePullRequestEvent(_, {_, _}, {{0xc00040ac18, 0x13}, {0xc00040ac18, 0x8}, {0xc00040ac21, 0xa}, {0xc00011f200, ...}, ...}, ...)
	github.com/runatlantis/atlantis/server/controllers/events/events_controller.go:452 +0x5f5
github.com/runatlantis/atlantis/server/controllers/events.(*VCSEventsController).HandleGitlabMergeRequestEvent(_, {_, _}, {{0xc000c9c890, 0xd}, 0xc0004224b0, {0x24d, {0xc000c9c8c0, 0xa}, {0xc000883c20, ...}, ...}, ...})
	github.com/runatlantis/atlantis/server/controllers/events/events_controller.go:589 +0x530
github.com/runatlantis/atlantis/server/controllers/events.(*VCSEventsController).handleGitlabPost(0xc00035c000, {0x7f72619377b8, 0xc00000e548}, 0x0)
	github.com/runatlantis/atlantis/server/controllers/events/events_controller.go:488 +0x22c
github.com/runatlantis/atlantis/server/controllers/events.(*VCSEventsController).Post(0xc00035c000, {0x7f72619377b8, 0xc00000e548}, 0xc000203500)
	github.com/runatlantis/atlantis/server/controllers/events/events_controller.go:107 +0x18f
net/http.HandlerFunc.ServeHTTP(0xc000203300, {0x7f72619377b8, 0xc00000e548}, 0x416fe6)
	net/http/server.go:2047 +0x2f
github.com/gorilla/mux.(*Router).ServeHTTP(0xc000b8a300, {0x7f72619377b8, 0xc00000e548}, 0xc0001b3d00)
	github.com/gorilla/[email protected]/mux.go:210 +0x1cf
github.com/urfave/negroni.Wrap.func1({0x7f72619377b8, 0xc00000e548}, 0x1183160, 0xc000a660c0)
	github.com/urfave/[email protected]/negroni.go:46 +0x4b
github.com/urfave/negroni.HandlerFunc.ServeHTTP(0x40, {0x7f72619377b8, 0xc00000e548}, 0x7f72617b9cc8, 0x8)
	github.com/urfave/[email protected]/negroni.go:29 +0x33
github.com/urfave/negroni.middleware.ServeHTTP({{0x1539b20, 0xc000a59560}, 0xc000a595a8}, {0x7f72619377b8, 0xc00000e548}, 0x3)
	github.com/urfave/[email protected]/negroni.go:38 +0xb6
github.com/runatlantis/atlantis/server.(*RequestLogger).ServeHTTP(0xc000a65440, {0x7f72619377b8, 0xc00000e548}, 0xc0001b3d00, 0xc000a660a0)
	github.com/runatlantis/atlantis/server/middleware.go:68 +0x448
github.com/urfave/negroni.middleware.ServeHTTP({{0x15366e0, 0xc000a65440}, 0xc000a59590}, {0x7f72619377b8, 0xc00000e548}, 0x20)
	github.com/urfave/[email protected]/negroni.go:38 +0xb6
github.com/urfave/negroni.(*Recovery).ServeHTTP(0xc000054400, {0x7f72619377b8, 0xc00000e548}, 0xc0001dba48, 0x40ac8a)
	github.com/urfave/[email protected]/recovery.go:193 +0x8f
github.com/urfave/negroni.middleware.ServeHTTP({{0x1537140, 0xc000ab64b0}, 0xc000a59578}, {0x7f72619377b8, 0xc00000e548}, 0x0)
	github.com/urfave/[email protected]/negroni.go:38 +0xb6
github.com/urfave/negroni.(*Negroni).ServeHTTP(0xc0004842d0, {0x154a298, 0xc000b07960}, 0x10)
	github.com/urfave/[email protected]/negroni.go:96 +0x110
net/http.serverHandler.ServeHTTP({0x1547b50}, {0x154a298, 0xc000b07960}, 0xc0001b3d00)
	net/http/server.go:2879 +0x43b
net/http.(*conn).serve(0xc000762000, {0x15557f0, 0xc0002b6d50})
	net/http/server.go:1930 +0xb08
created by net/http.(*Server).Serve
	net/http/server.go:3034 +0x4e8
{"level":"info","ts":"2022-08-04T09:28:23.863Z","caller":"events/events_controller.go:588","msg":"identified event as type \"closed\"","json":{}}
2022/08/04 09:28:23 http: panic serving 10.254.14.97:2828: runtime error: invalid memory address or nil pointer dereference
goroutine 376 [running]:
net/http.(*conn).serve.func1()
	net/http/server.go:1802 +0xb9
panic({0x110f440, 0x1d9c420})
	runtime/panic.go:1047 +0x266
github.com/urfave/negroni.(*Recovery).ServeHTTP.func1()
	github.com/urfave/[email protected]/recovery.go:166 +0x23c
panic({0x10d5fa0, 0xc000935a10})
	runtime/panic.go:1038 +0x215
github.com/uber-go/tally/prometheus.NewReporter.func1({0x1535c60, 0xc000935a10})
	github.com/uber-go/[email protected]+incompatible/prometheus/reporter.go:306 +0x68
github.com/uber-go/tally/prometheus.(*reporter).AllocateCounter(0xc0007499e0, {0xc0001aa330, 0x2d}, 0x1517f08)
	github.com/uber-go/[email protected]+incompatible/prometheus/reporter.go:366 +0x11f
github.com/uber-go/tally.(*scope).Counter(0xc000ba0000, {0x13100d3, 0xc000909720})
	github.com/uber-go/[email protected]+incompatible/scope.go:280 +0x173
github.com/runatlantis/atlantis/server/events.(*InstrumentedPullClosedExecutor).CleanUpPull(_, {{0xc00040ac18, 0x13}, {0xc00040ac18, 0x8}, {0xc00040ac21, 0xa}, {0xc00011f200, 0x51}, {0xc0008fb040, ...}, ...}, ...)
	github.com/runatlantis/atlantis/server/events/instrumented_pull_closed_executor.go:35 +0x1a3
github.com/runatlantis/atlantis/server/controllers/events.(*VCSEventsController).handlePullRequestEvent(_, {_, _}, {{0xc00040ac18, 0x13}, {0xc00040ac18, 0x8}, {0xc00040ac21, 0xa}, {0xc00011f200, ...}, ...}, ...)
	github.com/runatlantis/atlantis/server/controllers/events/events_controller.go:452 +0x5f5
github.com/runatlantis/atlantis/server/controllers/events.(*VCSEventsController).HandleGitlabMergeRequestEvent(_, {_, _}, {{0xc000c9c890, 0xd}, 0xc0004224b0, {0x24d, {0xc000c9c8c0, 0xa}, {0xc000883c20, ...}, ...}, ...})
	github.com/runatlantis/atlantis/server/controllers/events/events_controller.go:589 +0x530
github.com/runatlantis/atlantis/server/controllers/events.(*VCSEventsController).handleGitlabPost(0xc00035c000, {0x7f72619377b8, 0xc00000e548}, 0x0)
	github.com/runatlantis/atlantis/server/controllers/events/events_controller.go:488 +0x22c
github.com/runatlantis/atlantis/server/controllers/events.(*VCSEventsController).Post(0xc00035c000, {0x7f72619377b8, 0xc00000e548}, 0xc000203500)
	github.com/runatlantis/atlantis/server/controllers/events/events_controller.go:107 +0x18f
net/http.HandlerFunc.ServeHTTP(0xc000203300, {0x7f72619377b8, 0xc00000e548}, 0x416fe6)
	net/http/server.go:2047 +0x2f
github.com/gorilla/mux.(*Router).ServeHTTP(0xc000b8a300, {0x7f72619377b8, 0xc00000e548}, 0xc0001b3d00)
	github.com/gorilla/[email protected]/mux.go:210 +0x1cf
github.com/urfave/negroni.Wrap.func1({0x7f72619377b8, 0xc00000e548}, 0x1183160, 0xc000a660c0)
	github.com/urfave/[email protected]/negroni.go:46 +0x4b
github.com/urfave/negroni.HandlerFunc.ServeHTTP(0x40, {0x7f72619377b8, 0xc00000e548}, 0x7f72617b9cc8, 0x8)
	github.com/urfave/[email protected]/negroni.go:29 +0x33
github.com/urfave/negroni.middleware.ServeHTTP({{0x1539b20, 0xc000a59560}, 0xc000a595a8}, {0x7f72619377b8, 0xc00000e548}, 0x3)
	github.com/urfave/[email protected]/negroni.go:38 +0xb6
github.com/runatlantis/atlantis/server.(*RequestLogger).ServeHTTP(0xc000a65440, {0x7f72619377b8, 0xc00000e548}, 0xc0001b3d00, 0xc000a660a0)
	github.com/runatlantis/atlantis/server/middleware.go:68 +0x448
github.com/urfave/negroni.middleware.ServeHTTP({{0x15366e0, 0xc000a65440}, 0xc000a59590}, {0x7f72619377b8, 0xc00000e548}, 0x20)
	github.com/urfave/[email protected]/negroni.go:38 +0xb6
github.com/urfave/negroni.(*Recovery).ServeHTTP(0xc000054400, {0x7f72619377b8, 0xc00000e548}, 0xc0001dba48, 0x40ac8a)
	github.com/urfave/[email protected]/recovery.go:193 +0x8f
github.com/urfave/negroni.middleware.ServeHTTP({{0x1537140, 0xc000ab64b0}, 0xc000a59578}, {0x7f72619377b8, 0xc00000e548}, 0x0)
	github.com/urfave/[email protected]/negroni.go:38 +0xb6
github.com/urfave/negroni.(*Negroni).ServeHTTP(0xc0004842d0, {0x154a298, 0xc000b07960}, 0x10)
	github.com/urfave/[email protected]/negroni.go:96 +0x110
net/http.serverHandler.ServeHTTP({0x1547b50}, {0x154a298, 0xc000b07960}, 0xc0001b3d00)
	net/http/server.go:2879 +0x43b
net/http.(*conn).serve(0xc000762000, {0x15557f0, 0xc0002b6d50})
	net/http/server.go:1930 +0xb08
created by net/http.(*Server).Serve
	net/http/server.go:3034 +0x4e8

Seems there is an issue with the metric name here:

 PANIC: descriptor Desc{fqName: "atlantis_pullclosed.cleanup_execution_success", help: "atlantis_pullclosed.cleanup_execution_success counter", constLabels: {}, variableLabels: []} is invalid: "atlantis_pullclosed.cleanup_execution_success" is not a valid metric name

@nitrocode
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@mustafa89 looks like the issue you're referring to may have been closed #2379 by #2528. The version 0.19.9 should fix your issue.

krrrr38 pushed a commit to krrrr38/atlantis that referenced this pull request Dec 16, 2022
* support prometheus metrics

* remove redundant error checking

* load prometheus metrics config

* dynamic separator for subscopes

* removing unnecessary config file

* adding a few more metrics test cases

* remove testing handler

* fix upstream merge error
@nitrocode nitrocode added this to the v0.19.5 milestone Mar 23, 2023
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5 participants