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feat: add health check to telemetry server

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Signed-off-by: Mark Sagi-Kazar <mark.sagikazar@gmail.com>
This commit is contained in:
Mark Sagi-Kazar 2021-02-11 00:13:07 +01:00
parent 10597cf09f
commit 024f69b2c7
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GPG key ID: 34CC109EB5ED1C2A
4 changed files with 61 additions and 0 deletions
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25
cmd/dex/serve.go
View file

@ -14,6 +14,9 @@ import (
"syscall"
"time"
gosundheit "github.com/AppsFlyer/go-sundheit"
"github.com/AppsFlyer/go-sundheit/checks"
gosundheithttp "github.com/AppsFlyer/go-sundheit/http"
"github.com/ghodss/yaml"
grpcprometheus "github.com/grpc-ecosystem/go-grpc-prometheus"
"github.com/oklog/run"
@ -325,6 +328,28 @@ func runServe(options serveOptions) error {
telemetryServ := http.NewServeMux()
telemetryServ.Handle("/metrics", promhttp.HandlerFor(prometheusRegistry, promhttp.HandlerOpts{}))
// Configure health checker
healthChecker := gosundheit.New()
{
handler := gosundheithttp.HandleHealthJSON(healthChecker)
telemetryServ.Handle("/healthz", handler)
// Kubernetes style health checks
telemetryServ.HandleFunc("/healthz/live", func(w http.ResponseWriter, _ *http.Request) {
_, _ = w.Write([]byte("ok"))
})
telemetryServ.Handle("/healthz/ready", handler)
}
healthChecker.RegisterCheck(&gosundheit.Config{
Check: &checks.CustomCheck{
CheckName: "storage",
CheckFunc: storage.NewCustomHealthCheckFunc(serverConfig.Storage, serverConfig.Now),
},
ExecutionPeriod: 15 * time.Second,
InitiallyPassing: true,
})
var gr run.Group
if c.Telemetry.HTTP != "" {
telemetrySrv := &http.Server{Addr: c.Telemetry.HTTP, Handler: telemetryServ}

1
go.mod
View file

@ -3,6 +3,7 @@ module github.com/dexidp/dex
go 1.15
require (
github.com/AppsFlyer/go-sundheit v0.3.1
github.com/Microsoft/hcsshim v0.8.14 // indirect
github.com/beevik/etree v1.1.0
github.com/coreos/go-oidc/v3 v3.0.0

6
go.sum
View file

@ -13,6 +13,8 @@ cloud.google.com/go/firestore v1.1.0/go.mod h1:ulACoGHTpvq5r8rxGJ4ddJZBZqakUQqCl
cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I=
cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw=
dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
github.com/AppsFlyer/go-sundheit v0.3.1 h1:Zqnr3wV3WQmXonc234k9XZAoV2KHUHw3osR5k2iHQZE=
github.com/AppsFlyer/go-sundheit v0.3.1/go.mod h1:iZ8zWMS7idcvmqewf5mEymWWgoOiG/0WD4+aeh+heX4=
github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78 h1:w+iIsaOQNcT7OZ575w+acHgRric5iCyQh+xv+KJ4HB8=
github.com/Azure/go-ansiterm v0.0.0-20170929234023-d6e3b3328b78/go.mod h1:LmzpDX56iTiv29bbRTIsUNlaFfuhWRQBWjQdVyAevI8=
github.com/BurntSushi/toml v0.3.1 h1:WXkYYl6Yr3qBf1K79EBnL4mak0OimBfB0XUf9Vl28OQ=
@ -102,6 +104,8 @@ github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7
github.com/fatih/color v1.7.0/go.mod h1:Zm6kSWBoL9eyXnKyktHP6abPY2pDugNf5KwzbycvMj4=
github.com/felixge/httpsnoop v1.0.1 h1:lvB5Jl89CsZtGIWuTcDM1E/vkVs49/Ml7JJe07l8SPQ=
github.com/felixge/httpsnoop v1.0.1/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U=
github.com/fortytw2/leaktest v1.3.0 h1:u8491cBMTQ8ft8aeV+adlcytMZylmA5nnwwkRZjI8vw=
github.com/fortytw2/leaktest v1.3.0/go.mod h1:jDsjWgpAGjm2CA7WthBh/CdZYEPF31XHquHwclZch5g=
github.com/fsnotify/fsnotify v1.4.7 h1:IXs+QLmnXW2CcXuY+8Mzv/fWEsPGWxqefPtCP5CnV9I=
github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
github.com/ghodss/yaml v1.0.0 h1:wQHKEahhL6wmXdzwWG11gIVCkOv05bNOh+Rxn0yngAk=
@ -339,6 +343,8 @@ github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An
github.com/spf13/viper v1.7.0/go.mod h1:8WkrPz2fc9jxqZNCJI/76HCieCp4Q8HaLFoCha5qpdg=
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/objx v0.2.0 h1:Hbg2NidpLE8veEBkEZTL3CvlkUIVzuU9jDplZO54c48=
github.com/stretchr/objx v0.2.0/go.mod h1:qt09Ya8vawLte6SNmTgCsAVtYtaKzEcn8ATUoHMkEqE=
github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=

29
storage/health.go Normal file
View file

@ -0,0 +1,29 @@
package storage
import (
"fmt"
"time"
)
// NewCustomHealthCheckFunc returns a new health check function.
func NewCustomHealthCheckFunc(s Storage, now func() time.Time) func() (details interface{}, err error) {
return func() (details interface{}, err error) {
a := AuthRequest{
ID: NewID(),
ClientID: NewID(),
// Set a short expiry so if the delete fails this will be cleaned up quickly by garbage collection.
Expiry: now().Add(time.Minute),
}
if err := s.CreateAuthRequest(a); err != nil {
return nil, fmt.Errorf("create auth request: %v", err)
}
if err := s.DeleteAuthRequest(a.ID); err != nil {
return nil, fmt.Errorf("delete auth request: %v", err)
}
return nil, nil
}
}