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POC opamp #3944

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POC opamp #3944

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f3aefbb
Init POC opamp
nchaulet Sep 23, 2024
6f688ac
smaller fixes
michel-laterman Sep 23, 2024
232724b
very rough poc for health and config reporting; untested
michel-laterman Sep 23, 2024
23afc87
fix compile issues
michel-laterman Sep 23, 2024
f78517c
add TODO for enrollment flow
nchaulet Sep 24, 2024
e5c4f8c
add registration on first use when an enrollment token is used
michel-laterman Sep 24, 2024
2cc57c4
Return connection settings and remote config on registration
michel-laterman Sep 24, 2024
e257620
Add path to returned connection
michel-laterman Sep 25, 2024
2ef10ca
fixes
michel-laterman Sep 25, 2024
3371f61
fix linter
michel-laterman Sep 25, 2024
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4 changes: 3 additions & 1 deletion go.mod
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Original file line number Diff line number Diff line change
Expand Up @@ -38,7 +38,7 @@ require (
golang.org/x/sync v0.8.0
golang.org/x/time v0.5.0
google.golang.org/grpc v1.63.2
google.golang.org/protobuf v1.33.0
google.golang.org/protobuf v1.34.1
gopkg.in/yaml.v3 v3.0.1
)

Expand All @@ -64,11 +64,13 @@ require (
github.com/golang/glog v1.2.0 // indirect
github.com/golang/protobuf v1.5.4 // indirect
github.com/google/uuid v1.6.0 // indirect
github.com/gorilla/websocket v1.5.1 // indirect
github.com/inconshreveable/mousetrap v1.1.0 // indirect
github.com/josharian/intern v1.0.0 // indirect
github.com/lufia/plan9stats v0.0.0-20211012122336-39d0f177ccd0 // indirect
github.com/mattn/go-colorable v0.1.13 // indirect
github.com/mattn/go-isatty v0.0.20 // indirect
github.com/open-telemetry/opamp-go v0.15.0 // indirect
github.com/pkg/errors v0.9.1 // indirect
github.com/pmezard/go-difflib v1.0.0 // indirect
github.com/power-devops/perfstat v0.0.0-20210106213030-5aafc221ea8c // indirect
Expand Down
6 changes: 6 additions & 0 deletions go.sum
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Original file line number Diff line number Diff line change
Expand Up @@ -90,6 +90,8 @@ github.com/google/pprof v0.0.0-20230426061923-93006964c1fc h1:AGDHt781oIcL4EFk7c
github.com/google/pprof v0.0.0-20230426061923-93006964c1fc/go.mod h1:79YE0hCXdHag9sBkw2o+N/YnZtTkXi0UT9Nnixa5eYk=
github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
github.com/gorilla/websocket v1.5.1 h1:gmztn0JnHVt9JZquRuzLw3g4wouNVzKL15iLr/zn/QY=
github.com/gorilla/websocket v1.5.1/go.mod h1:x3kM2JMyaluk02fnUJpQuwD2dCS5NDG2ZHL0uE0tcaY=
github.com/hashicorp/go-cleanhttp v0.5.2 h1:035FKYIWjmULyFRBKPs8TBQoi0x6d9G4xc9neXJWAZQ=
github.com/hashicorp/go-cleanhttp v0.5.2/go.mod h1:kO/YDlP8L1346E6Sodw+PrpBSV4/SoxCXGY6BqNFT48=
github.com/hashicorp/go-version v1.6.0 h1:feTTfFNnjP967rlCxM/I9g701jU+RN74YKx2mOkIeek=
Expand Down Expand Up @@ -125,6 +127,8 @@ github.com/moby/docker-image-spec v1.3.1/go.mod h1:eKmb5VW8vQEh/BAr2yvVNvuiJuY6U
github.com/niemeyer/pretty v0.0.0-20200227124842-a10e7caefd8e/go.mod h1:zD1mROLANZcx1PVRCS0qkT7pwLkGfwJo4zjcN/Tysno=
github.com/oapi-codegen/runtime v1.1.1 h1:EXLHh0DXIJnWhdRPN2w4MXAzFyE4CskzhNLUmtpMYro=
github.com/oapi-codegen/runtime v1.1.1/go.mod h1:SK9X900oXmPWilYR5/WKPzt3Kqxn/uS/+lbpREv+eCg=
github.com/open-telemetry/opamp-go v0.15.0 h1:X2TWhEsGQ8GP7Uos3Ic9v/1aFUqoECZXKS7xAF5HqsA=
github.com/open-telemetry/opamp-go v0.15.0/go.mod h1:QyPeN56JXlcZt5yG5RMdZ50Ju+zMFs1Ihy/hwHyF8Oo=
github.com/opencontainers/go-digest v1.0.0 h1:apOUWs51W5PlhuyGyz9FCeeBIOUDA/6nW8Oi/yOhh5U=
github.com/opencontainers/go-digest v1.0.0/go.mod h1:0JzlMkj0TRzQZfJkVvzbP0HBR3IKzErnv2BNG4W4MAM=
github.com/opencontainers/image-spec v1.0.2 h1:9yCKha/T5XdGtO0q9Q9a6T5NUCsTn/DrBg0D7ufOcFM=
Expand Down Expand Up @@ -289,6 +293,8 @@ google.golang.org/grpc v1.63.2 h1:MUeiw1B2maTVZthpU5xvASfTh3LDbxHd6IJ6QQVU+xM=
google.golang.org/grpc v1.63.2/go.mod h1:WAX/8DgncnokcFUldAxq7GeB5DXHDbMF+lLvDomNkRA=
google.golang.org/protobuf v1.33.0 h1:uNO2rsAINq/JlFpSdYEKIZ0uKD/R9cpdv0T+yoGwGmI=
google.golang.org/protobuf v1.33.0/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
google.golang.org/protobuf v1.34.1 h1:9ddQBjfCyZPOHPUiPxpYESBLc+T8P3E+Vo4IbKZgFWg=
google.golang.org/protobuf v1.34.1/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20200227125254-8fa46927fb4f/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
Expand Down
15 changes: 12 additions & 3 deletions internal/pkg/api/router.go
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Original file line number Diff line number Diff line change
Expand Up @@ -17,16 +17,24 @@ import (
"github.com/rs/zerolog"
"go.elastic.co/apm/module/apmchiv5/v2"
"go.elastic.co/apm/v2"

opamp "github.com/open-telemetry/opamp-go/server"
)

func newRouter(cfg *config.ServerLimits, si ServerInterface, tracer *apm.Tracer) http.Handler {
func newRouter(cfg *config.ServerLimits, si ServerInterface, tracer *apm.Tracer, handlerFn opamp.HTTPHandlerFunc) http.Handler {
r := chi.NewRouter()
if tracer != nil {
r.Use(apmchiv5.Middleware(apmchiv5.WithTracer(tracer)))
}

r.Use(logger.Middleware) // Attach middlewares to router directly so the occur before any request parsing/validation
r.Use(middleware.Recoverer)
r.Use(Limiter(cfg).middleware)
r.HandleFunc("/opamp", http.HandlerFunc(
func(w http.ResponseWriter, r *http.Request) {
handlerFn(w, r)
},
))
return HandlerWithOptions(si, ChiServerOptions{
BaseRouter: r,
ErrorHandlerFunc: ErrorResp,
Expand Down Expand Up @@ -79,6 +87,9 @@ func pathToOperation(path string) string {
if path == "/api/status" {
return "status"
}
if path == "/opamp" {
return "opamp"
}
if path == "/api/fleet/uploads" {
return "uploadBegin"
}
Expand Down Expand Up @@ -136,8 +147,6 @@ func (l *limiter) middleware(next http.Handler) http.Handler {
l.getPGPKey.Wrap("getPGPKey", &cntGetPGP, zerolog.DebugLevel)(next).ServeHTTP(w, r)
case "status":
l.status.Wrap("status", &cntStatus, zerolog.DebugLevel)(next).ServeHTTP(w, r)
case "audit-unenroll":
l.auditUnenroll.Wrap("audit-unenroll", &cntAuditUnenroll, zerolog.DebugLevel)(next).ServeHTTP(w, r)
default:
// no tracking or limits
next.ServeHTTP(w, r)
Expand Down
32 changes: 26 additions & 6 deletions internal/pkg/api/server.go
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Original file line number Diff line number Diff line change
Expand Up @@ -22,13 +22,16 @@
"github.com/elastic/fleet-server/v7/internal/pkg/policy"
"go.elastic.co/apm/v2"

opamp "github.com/open-telemetry/opamp-go/server"
"github.com/open-telemetry/opamp-go/server/types"
"github.com/rs/zerolog"
)

type server struct {
cfg *config.Server
addr string
handler http.Handler
cfg *config.Server
addr string
handler http.Handler
contextWithConn opamp.ConnContext
}

// NewServer creates a new HTTP api for the passed addr.
Expand All @@ -50,10 +53,26 @@
audit: audit,
bulker: bulker,
}

ompampServer := opamp.New(nil)
handlerFn, contextWithConn, _ := ompampServer.Attach(opamp.Settings{
Callbacks: opamp.CallbacksStruct{
OnConnectingFunc: func(request *http.Request) types.ConnectionResponse {
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fmt.Printf("TEST ")

Check failure on line 61 in internal/pkg/api/server.go

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use of `fmt.Printf` forbidden by pattern `fmt.Print.*` (forbidigo)
return types.ConnectionResponse{
Accept: true,
ConnectionCallbacks: opamp.ConnectionCallbacksStruct{},
}

},
},
})

return &server{
addr: addr,
cfg: cfg,
handler: newRouter(&cfg.Limits, a, tracer),
addr: addr,
cfg: cfg,
handler: newRouter(&cfg.Limits, a, tracer, handlerFn),
contextWithConn: contextWithConn,
}
}

Expand All @@ -75,6 +94,7 @@
BaseContext: func(net.Listener) context.Context { return ctx },
ErrorLog: errLogger(ctx),
ConnState: diagConn,
ConnContext: s.contextWithConn,
}

var listenCfg net.ListenConfig
Expand Down
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