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Added Prometheus metrics, don't forget to restrict access on /metrics endpoint.

thegreatrefactor
Gisle Aune 5 years ago
parent
e794311eb8
commit
d5573e7f39
4 changed files with 222 additions and 4 deletions
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  1. 8
      cmd/rpdata-server/main.go
  2. 16
      go.mod
  3. 59
      go.sum
  4. 143
      internal/instrumentation/prometheus.go

8
cmd/rpdata-server/main.go
View File

@ -10,12 +10,14 @@ import (
"git.aiterp.net/rpdata/api/graph2"
"git.aiterp.net/rpdata/api/internal/auth"
"git.aiterp.net/rpdata/api/internal/instrumentation"
"git.aiterp.net/rpdata/api/internal/loader"
"git.aiterp.net/rpdata/api/internal/store"
"git.aiterp.net/rpdata/api/models"
"git.aiterp.net/rpdata/api/models/changes"
"git.aiterp.net/rpdata/api/models/logs"
"github.com/99designs/gqlgen/handler"
"github.com/prometheus/client_golang/prometheus/promhttp"
)
func main() {
@ -24,9 +26,13 @@ func main() {
log.Fatalln("Failed to init store:", err)
}
instrumentation.Register()
http.Handle("/", handler.Playground("RPData API", "/graphql"))
http.Handle("/graphql", queryHandler())
http.Handle("/metrics", promhttp.Handler())
go func() {
err := logs.RunFullUpdate()
if err != nil {
@ -81,6 +87,8 @@ func queryHandler() http.HandlerFunc {
return fmt.Errorf("The server failed to serve your request due to an internal error, it has been logged")
}),
handler.ComplexityLimit(300),
handler.RequestMiddleware(instrumentation.RequestMiddleware()),
handler.ResolverMiddleware(instrumentation.ResolverMiddleware()),
)
return func(w http.ResponseWriter, r *http.Request) {

16
go.mod
View File

@ -5,12 +5,14 @@ go 1.12
require (
github.com/99designs/gqlgen v0.8.0
github.com/agnivade/levenshtein v1.0.1
github.com/beorn7/perks v1.0.0 // indirect
github.com/davecgh/go-spew v1.1.1
github.com/dgrijalva/jwt-go v3.2.0+incompatible
github.com/dustin/go-humanize v0.0.0-20171111073723-bb3d318650d4
github.com/globalsign/mgo v0.0.0-20180403085842-f76e4f9da92e
github.com/go-ini/ini v1.35.0
github.com/go-sql-driver/mysql v1.4.0
github.com/golang/protobuf v1.3.1 // indirect
github.com/gorilla/websocket v1.4.0
github.com/graph-gophers/dataloader v0.0.0-20180104184831-78139374585c
github.com/hashicorp/golang-lru v0.5.0
@ -20,15 +22,21 @@ require (
github.com/opentracing/opentracing-go v1.0.2
github.com/pkg/errors v0.8.1
github.com/pmezard/go-difflib v1.0.0
github.com/sirupsen/logrus v1.0.5
github.com/prometheus/client_golang v0.9.1
github.com/prometheus/client_model v0.0.0-20190129233127-fd36f4220a90 // indirect
github.com/prometheus/common v0.4.0 // indirect
github.com/prometheus/procfs v0.0.0-20190517135640-51af30a78b0e // indirect
github.com/sirupsen/logrus v1.2.0
github.com/stretchr/testify v1.3.0
github.com/urfave/cli v1.20.0
github.com/vektah/gqlparser v1.1.0
golang.org/x/crypto v0.0.0-20180411161317-d6449816ce06
golang.org/x/net v0.0.0-20180416171110-a35a21de978d
golang.org/x/sys v0.0.0-20180416112224-2f57af4873d0
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2
golang.org/x/net v0.0.0-20190514140710-3ec191127204
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a
golang.org/x/text v0.3.0
golang.org/x/tools v0.0.0-20190125232054-d66bd3c5d5a6
google.golang.org/appengine v1.1.0
gopkg.in/yaml.v2 v2.2.2
)
replace golang.org/x/net => golang.org/x/net v0.0.0-20180416171110-a35a21de978d

59
go.sum
View File

@ -4,24 +4,40 @@ github.com/99designs/gqlgen v0.8.0 h1:ZBteuSgeeFwn+mztjDqQZQdVa9pqslmPnDeCovcnc0
github.com/99designs/gqlgen v0.8.0/go.mod h1:st7qHA6ssU3uRZkmv+wzrzgX4srvIqEIdE5iuRW8GhE=
github.com/99designs/gqlgen v0.8.3 h1:I6bMglXNKkn4KlvkSMzqZw53e1N2FF9Gud4NmsOxqiA=
github.com/99designs/gqlgen v0.8.3/go.mod h1:aLyJw9xUgdJxZ8EqNQxo2pGFhXXJ/hq8t7J4yn8TgI4=
github.com/OneOfOne/xxhash v1.2.2/go.mod h1:HSdplMjZKSmBqAxg5vPj2TmRDmfkzw+cTzAElWljhcU=
github.com/agnivade/levenshtein v1.0.0 h1:q+77q31bLT5jhN3BHKA1276nUEdbz7XjDa0o5dRKcZ0=
github.com/agnivade/levenshtein v1.0.0/go.mod h1:CURSv5d9Uaml+FovSIICkLbAUZ9S4RqaHDIsdSBg7lM=
github.com/agnivade/levenshtein v1.0.1 h1:3oJU7J3FGFmyhn8KHjmVaZCN5hxTr7GxgRue+sxIXdQ=
github.com/agnivade/levenshtein v1.0.1/go.mod h1:CURSv5d9Uaml+FovSIICkLbAUZ9S4RqaHDIsdSBg7lM=
github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc=
github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0=
github.com/andreyvit/diff v0.0.0-20170406064948-c7f18ee00883/go.mod h1:rCTlJbsFo29Kk6CurOXKm700vrz8f0KW0JNfpkRJY/8=
github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q=
github.com/beorn7/perks v1.0.0 h1:HWo1m869IqiPhD389kmkxeTalrjNbbJTC8LXupb+sl0=
github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8=
github.com/cespare/xxhash v1.1.0/go.mod h1:XrSqR1VqqWfGrhpAt58auRo0WTKS1nRRg3ghfAqPWnc=
github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
github.com/dgrijalva/jwt-go v3.2.0+incompatible h1:7qlOGliEKZXTDg6OTjfoBKDXWrumCAMpl/TFQ4/5kLM=
github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ=
github.com/dgryski/go-sip13 v0.0.0-20181026042036-e10d5fee7954/go.mod h1:vAd38F8PWV+bWy6jNmig1y/TA+kYO4g3RSRF0IAv0no=
github.com/dustin/go-humanize v0.0.0-20171111073723-bb3d318650d4/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk=
github.com/globalsign/mgo v0.0.0-20180403085842-f76e4f9da92e h1:hmrbHva/wKD6X4M7pgHVbg/KfVV1wwgr1NEkQaVD3rU=
github.com/globalsign/mgo v0.0.0-20180403085842-f76e4f9da92e/go.mod h1:xkRDCp4j0OGD1HRkm4kmhM+pmpv3AKq5SU7GMg4oO/Q=
github.com/go-chi/chi v3.3.2+incompatible/go.mod h1:eB3wogJHnLi3x/kFX2A+IbTBlXxmMeXJVKy9tTv1XzQ=
github.com/go-ini/ini v1.35.0 h1:D/my3+xOfqZMkJpciRcyqU7XMBUgiZa9qXjZIa8uv2k=
github.com/go-ini/ini v1.35.0/go.mod h1:ByCAeIL28uOIIG0E3PJtZPDL8WnHpFKFOtgjp+3Ies8=
github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2as=
github.com/go-logfmt/logfmt v0.3.0/go.mod h1:Qt1PoO58o5twSAckw1HlFXLmHsOX5/0LbT9GBnD5lWE=
github.com/go-logfmt/logfmt v0.4.0/go.mod h1:3RMwSq7FuexP4Kalkev3ejPJsZTpXXBr9+V4qmtdjCk=
github.com/go-sql-driver/mysql v1.4.0 h1:7LxgVwFb2hIQtMm87NdgAVfXjnt4OePseqT1tKx+opk=
github.com/go-sql-driver/mysql v1.4.0/go.mod h1:zAC/RDZ24gD3HViQzih4MyKcchzm+sOG5ZlKdlhCg5w=
github.com/go-stack/stack v1.8.0/go.mod h1:v0f6uXyyMGvRgIKkXu+yp6POWl0qKG85gN/melR3HDY=
github.com/gogo/protobuf v1.0.0/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
github.com/gogo/protobuf v1.1.1/go.mod h1:r8qH/GZQm5c6nD/R0oafs1akxWv10x8SbQlK7atdtwQ=
github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/golang/protobuf v1.3.1 h1:YF8+flBXS5eO826T4nzqPrxfhQThhXl0YzfuUPu4SBg=
github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
github.com/gorilla/context v0.0.0-20160226214623-1ea25387ff6f/go.mod h1:kBGZzfjB9CEq2AlWe17Uuf7NDRt0dE0s8S51q0aT7Yg=
github.com/gorilla/mux v1.6.1/go.mod h1:1lud6UwP+6orDFRuTfBEV8e9/aOM/c4fVVCaMa2zaAs=
github.com/gorilla/websocket v1.2.0/go.mod h1:E7qHFY5m1UJ88s3WnNqhKjPHQ0heANvMoAMk2YaljkQ=
@ -33,14 +49,21 @@ github.com/hashicorp/golang-lru v0.5.0 h1:CL2msUPvZTLb5O648aiLNJw3hnBxN2+1Jq8rCO
github.com/hashicorp/golang-lru v0.5.0/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
github.com/jmoiron/sqlx v0.0.0-20180614180643-0dae4fefe7c0 h1:5B0uxl2lzNRVkJVg+uGHxWtRt4C0Wjc6kJKo5XYx8xE=
github.com/jmoiron/sqlx v0.0.0-20180614180643-0dae4fefe7c0/go.mod h1:IiEW3SEiiErVyFdH8NTuWjSifiEQKUoyK3LNqr2kCHU=
github.com/julienschmidt/httprouter v1.2.0/go.mod h1:SYymIcj16QtmaHHD7aYtjjsJG7VTCxuUUipMqKk8s4w=
github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
github.com/kr/logfmt v0.0.0-20140226030751-b84e30acd515/go.mod h1:+0opPa2QZZtGFBFZlji/RkVcI2GknAs/DXo4wKdlNEc=
github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
github.com/matttproud/golang_protobuf_extensions v1.0.1 h1:4hp9jkHxhMHkqkrB3Ix0jegS5sx/RkqARlsWZ6pIwiU=
github.com/matttproud/golang_protobuf_extensions v1.0.1/go.mod h1:D8He9yQNgCq6Z5Ld7szi9bcBfOoFv/3dc6xSMkL2PC0=
github.com/minio/minio-go v0.0.0-20180409193742-3d2d02921f05 h1:YEyFCqmHcmbcTLqZ7yEAg7VIUat6PuDzGbIctZy888k=
github.com/minio/minio-go v0.0.0-20180409193742-3d2d02921f05/go.mod h1:7guKYtitv8dktvNUGrhzmNlA5wrAABTQXCoesZdFQO8=
github.com/mitchellh/go-homedir v0.0.0-20161203194507-b8bc1bf76747 h1:eQox4Rh4ewJF+mqYPxCkmBAirRnPaHEB26UkNuPyjlk=
github.com/mitchellh/go-homedir v0.0.0-20161203194507-b8bc1bf76747/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
github.com/mitchellh/mapstructure v0.0.0-20180203102830-a4e142e9c047/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=
github.com/mwitkow/go-conntrack v0.0.0-20161129095857-cc309e4a2223/go.mod h1:qRWi+5nqEBWmkhHvq77mSJWrCKwh8bxhgT7d/eI7P4U=
github.com/oklog/ulid v1.3.1/go.mod h1:CirwcVhetQ6Lv90oh/F+FBtV6XMibvdAFo93nm5qn4U=
github.com/opentracing/basictracer-go v1.0.0/go.mod h1:QfBfYuafItcjQuMwinw9GhYKwFXS9KnPs5lxoYwgW74=
github.com/opentracing/opentracing-go v1.0.2 h1:3jA2P6O1F9UOrWVpwrIo17pu01KWvNWg4X946/Y5Zwg=
github.com/opentracing/opentracing-go v1.0.2/go.mod h1:UkNAQd3GIcIGf0SeVgPpRdFStlNbqXla1AfSYxPUl2o=
@ -49,12 +72,31 @@ github.com/pkg/errors v0.8.0/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINE
github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=
github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
github.com/prometheus/client_golang v0.9.1 h1:K47Rk0v/fkEfwfQet2KWhscE0cJzjgCCDBG2KHZoVno=
github.com/prometheus/client_golang v0.9.1/go.mod h1:7SWBe2y4D6OKWSNQJUaRYU/AaXPKyh/dDVn+NZz0KFw=
github.com/prometheus/client_golang v0.9.3 h1:9iH4JKXLzFbOAdtqv/a+j8aewx2Y8lAjAydhbaScPF8=
github.com/prometheus/client_golang v0.9.3/go.mod h1:/TN21ttK/J9q6uSwhBd54HahCDft0ttaMvbicHlPoso=
github.com/prometheus/client_model v0.0.0-20180712105110-5c3871d89910/go.mod h1:MbSGuTsp3dbXC40dX6PRTWyKYBIrTGTE9sqQNg2J8bo=
github.com/prometheus/client_model v0.0.0-20190129233127-fd36f4220a90 h1:S/YWwWx/RA8rT8tKFRuGUZhuA90OyIBpPCXkcbwU8DE=
github.com/prometheus/client_model v0.0.0-20190129233127-fd36f4220a90/go.mod h1:xMI15A0UPsDsEKsMN9yxemIoYk6Tm2C1GtYGdfGttqA=
github.com/prometheus/common v0.0.0-20181113130724-41aa239b4cce/go.mod h1:daVV7qP5qjZbuso7PdcryaAu0sAZbrN9i7WWcTMWvro=
github.com/prometheus/common v0.4.0 h1:7etb9YClo3a6HjLzfl6rIQaU+FDfi0VSX39io3aQ+DM=
github.com/prometheus/common v0.4.0/go.mod h1:TNfzLD0ON7rHzMJeJkieUDPYmFC7Snx/y86RQel1bk4=
github.com/prometheus/procfs v0.0.0-20181005140218-185b4288413d/go.mod h1:c3At6R/oaqEKCNdg8wHV1ftS6bRYblBhIjjI8uT2IGk=
github.com/prometheus/procfs v0.0.0-20190507164030-5867b95ac084 h1:sofwID9zm4tzrgykg80hfFph1mryUeLRsUfoocVVmRY=
github.com/prometheus/procfs v0.0.0-20190507164030-5867b95ac084/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsTZCD3I8kEA=
github.com/prometheus/procfs v0.0.0-20190517135640-51af30a78b0e h1:zK8d1aZ+gw/Ne4uMfZTFRxj08PUOp+gGwm4HWUeGI1k=
github.com/prometheus/procfs v0.0.0-20190517135640-51af30a78b0e/go.mod h1:TjEm7ze935MbeOT/UhFTIMYKhuLP4wbCsTZCD3I8kEA=
github.com/prometheus/tsdb v0.7.1/go.mod h1:qhTCs0VvXwvX/y3TZrWD7rabWM+ijKTux40TwIPHuXU=
github.com/rs/cors v1.6.0/go.mod h1:gFx+x8UowdsKA9AchylcLynDq+nNFfI8FkUZdN/jGCU=
github.com/sergi/go-diff v1.0.0/go.mod h1:0CfEIISq7TuYL3j771MWULgwwjU+GofnZX9QAmXWZgo=
github.com/shurcooL/httpfs v0.0.0-20171119174359-809beceb2371/go.mod h1:ZY1cvUeJuFPAdZ/B6v7RHavJWZn2YPVFQ1OSXhCGOkg=
github.com/shurcooL/vfsgen v0.0.0-20180121065927-ffb13db8def0/go.mod h1:TrYk7fJVaAttu97ZZKrO9UbRa8izdowaMIZcxYMbVaw=
github.com/sirupsen/logrus v1.0.5/go.mod h1:pMByvHTf9Beacp5x1UXfOR9xyW/9antXMhjMPG0dEzc=
github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPxbbu5VWo=
github.com/spaolacci/murmur3 v0.0.0-20180118202830-f09979ecbc72/go.mod h1:JwIasOWyU6f++ZhiEuf87xNszmSA2myDM2Kzu9HwQUA=
github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
github.com/stretchr/testify v1.2.1/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
@ -69,10 +111,26 @@ github.com/vektah/gqlparser v1.1.2 h1:ZsyLGn7/7jDNI+y4SEhI4yAxRChlv15pUHMjijT+e6
github.com/vektah/gqlparser v1.1.2/go.mod h1:1ycwN7Ij5njmMkPPAOaRFY4rET2Enx7IkVv3vaXspKw=
golang.org/x/crypto v0.0.0-20180411161317-d6449816ce06 h1:EOqG0JqGlLr+punVB69jvWCv/ErZKGlC7PMdyHfv+Bc=
golang.org/x/crypto v0.0.0-20180411161317-d6449816ce06/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
golang.org/x/crypto v0.0.0-20180904163835-0709b304e793 h1:u+LnwYTOOW7Ukr/fppxEb1Nwz0AtPflrblfvUudpo+I=
golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2 h1:VklqNMn3ovrHsnt90PveolxSbWFaJdECFbxSq0Mqo2M=
golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
golang.org/x/net v0.0.0-20180404174746-b3c676e531a6/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20180416171110-a35a21de978d h1:O2P57H5Cc+d+DJos+iweraI9rmzMYwV+45vkZdDY0Oo=
golang.org/x/net v0.0.0-20180416171110-a35a21de978d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20181114220301-adae6a3d119a h1:gOpx8G595UYyvj8UK4+OFyY4rx037g3fmfhe5SasG3U=
golang.org/x/net v0.0.0-20181114220301-adae6a3d119a/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
golang.org/x/net v0.0.0-20190514140710-3ec191127204 h1:4yG6GqBtw9C+UrLp6s2wtSniayy/Vd/3F7ffLE427XI=
golang.org/x/net v0.0.0-20190514140710-3ec191127204/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
golang.org/x/sys v0.0.0-20180416112224-2f57af4873d0/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20180905080454-ebe1bf3edb33/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20181107165924-66b7b1311ac8/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20181116152217-5ac8a444bdc5 h1:mzjBh+S5frKOsOBobWIMAbXavqjmgO17k/2puhcFR94=
golang.org/x/sys v0.0.0-20181116152217-5ac8a444bdc5/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a h1:1BGLXjeY4akVXGgbC9HugT3Jv3hCI0z56oJR5vAMgBU=
golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
golang.org/x/tools v0.0.0-20180911133044-677d2ff680c1 h1:dzEuQYa6+a3gROnSlgly5ERUm4SZKJt+dh+4iSbO+bI=
@ -80,6 +138,7 @@ golang.org/x/tools v0.0.0-20180911133044-677d2ff680c1/go.mod h1:n7NCudcB/nEzxVGm
golang.org/x/tools v0.0.0-20190125232054-d66bd3c5d5a6 h1:iZgcI2DDp6zW5v9Z/5+f0NuqoxNdmzg4hivjk2WLXpY=
golang.org/x/tools v0.0.0-20190125232054-d66bd3c5d5a6/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/yaml.v2 v2.2.1 h1:mUhvW9EsL+naU5Q3cakzfE91YhliOondGd6ZrsDBHQE=

143
internal/instrumentation/prometheus.go
View File

@ -0,0 +1,143 @@
package instrumentation
import (
"context"
"time"
"github.com/99designs/gqlgen/graphql"
prometheusclient "github.com/prometheus/client_golang/prometheus"
)
const (
existStatusFailure = "failure"
exitStatusSuccess = "success"
)
var (
requestStartedCounter prometheusclient.Counter
requestCompletedCounter prometheusclient.Counter
resolverStartedCounter *prometheusclient.CounterVec
resolverCompletedCounter *prometheusclient.CounterVec
timeToResolveField *prometheusclient.HistogramVec
timeToHandleRequest *prometheusclient.HistogramVec
)
// Register registers the prometheus metrics.
func Register() {
requestStartedCounter = prometheusclient.NewCounter(
prometheusclient.CounterOpts{
Name: "graphql_request_started_total",
Help: "Total number of requests started on the graphql server.",
},
)
requestCompletedCounter = prometheusclient.NewCounter(
prometheusclient.CounterOpts{
Name: "graphql_request_completed_total",
Help: "Total number of requests completed on the graphql server.",
},
)
resolverStartedCounter = prometheusclient.NewCounterVec(
prometheusclient.CounterOpts{
Name: "graphql_resolver_started_total",
Help: "Total number of resolver started on the graphql server.",
},
[]string{"object", "field"},
)
resolverCompletedCounter = prometheusclient.NewCounterVec(
prometheusclient.CounterOpts{
Name: "graphql_resolver_completed_total",
Help: "Total number of resolver completed on the graphql server.",
},
[]string{"object", "field"},
)
timeToResolveField = prometheusclient.NewHistogramVec(prometheusclient.HistogramOpts{
Name: "graphql_resolver_duration_ms",
Help: "The time taken to resolve a field by graphql server.",
Buckets: prometheusclient.ExponentialBuckets(1, 2, 11),
}, []string{"exitStatus"})
timeToHandleRequest = prometheusclient.NewHistogramVec(prometheusclient.HistogramOpts{
Name: "graphql_request_duration_ms",
Help: "The time taken to handle a request by graphql server.",
Buckets: prometheusclient.ExponentialBuckets(1, 2, 11),
}, []string{"exitStatus"})
prometheusclient.MustRegister(
requestStartedCounter,
requestCompletedCounter,
resolverStartedCounter,
resolverCompletedCounter,
timeToResolveField,
timeToHandleRequest,
)
}
// UnRegister unregisters
func UnRegister() {
prometheusclient.Unregister(requestStartedCounter)
prometheusclient.Unregister(requestCompletedCounter)
prometheusclient.Unregister(resolverStartedCounter)
prometheusclient.Unregister(resolverCompletedCounter)
prometheusclient.Unregister(timeToResolveField)
prometheusclient.Unregister(timeToHandleRequest)
}
// ResolverMiddleware is a resolver middleware that logs metrics for prometheus.
func ResolverMiddleware() graphql.FieldMiddleware {
return func(ctx context.Context, next graphql.Resolver) (interface{}, error) {
rctx := graphql.GetResolverContext(ctx)
resolverStartedCounter.WithLabelValues(rctx.Object, rctx.Field.Name).Inc()
observerStart := time.Now()
res, err := next(ctx)
var exitStatus string
if err != nil {
exitStatus = existStatusFailure
} else {
exitStatus = exitStatusSuccess
}
timeToResolveField.With(prometheusclient.Labels{"exitStatus": exitStatus}).
Observe(float64(time.Since(observerStart).Nanoseconds() / int64(time.Millisecond)))
resolverCompletedCounter.WithLabelValues(rctx.Object, rctx.Field.Name).Inc()
return res, err
}
}
// RequestMiddleware is a request middleware that logs metrics for prometheus.
func RequestMiddleware() graphql.RequestMiddleware {
return func(ctx context.Context, next func(ctx context.Context) []byte) []byte {
requestStartedCounter.Inc()
observerStart := time.Now()
res := next(ctx)
rctx := graphql.GetResolverContext(ctx)
reqCtx := graphql.GetRequestContext(ctx)
errList := reqCtx.GetErrors(rctx)
var exitStatus string
if len(errList) > 0 {
exitStatus = existStatusFailure
} else {
exitStatus = exitStatusSuccess
}
timeToHandleRequest.With(prometheusclient.Labels{"exitStatus": exitStatus}).
Observe(float64(time.Since(observerStart).Nanoseconds() / int64(time.Millisecond)))
requestCompletedCounter.Inc()
return res
}
}
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