This repository has been archived by the owner on Jul 12, 2023. It is now read-only.
-
Notifications
You must be signed in to change notification settings - Fork 85
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
Add metrics-registrar service for registering metrics (#2199)
* Add metrics-registrar service for registering metrics This adds a new service that registers metrics on boot. It also removes metrics registration from the other services boot sequences. This service is deployed but inaccessible and purely exists to register metrics. * wat
- Loading branch information
Showing
15 changed files
with
628 additions
and
31 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,120 @@ | ||
| // Copyright 2021 the Exposure Notifications Verification Server authors | ||
| // | ||
| // Licensed under the Apache License, Version 2.0 (the "License"); | ||
| // you may not use this file except in compliance with the License. | ||
| // You may obtain a copy of the License at | ||
| // | ||
| // http://www.apache.org/licenses/LICENSE-2.0 | ||
| // | ||
| // Unless required by applicable law or agreed to in writing, software | ||
| // distributed under the License is distributed on an "AS IS" BASIS, | ||
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| // See the License for the specific language governing permissions and | ||
| // limitations under the License. | ||
|
|
||
| // This server registers metrics for Stackdriver. | ||
| package main | ||
|
|
||
| import ( | ||
| "context" | ||
| "fmt" | ||
| "net/http" | ||
| "os/signal" | ||
| "syscall" | ||
|
|
||
| "github.com/google/exposure-notifications-verification-server/internal/buildinfo" | ||
| "github.com/google/exposure-notifications-verification-server/pkg/config" | ||
| "github.com/google/exposure-notifications-verification-server/pkg/controller/metricsregistrar" | ||
| "github.com/google/exposure-notifications-verification-server/pkg/controller/middleware" | ||
| "github.com/google/exposure-notifications-verification-server/pkg/render" | ||
|
|
||
| "github.com/google/exposure-notifications-server/pkg/logging" | ||
| "github.com/google/exposure-notifications-server/pkg/observability" | ||
| "github.com/google/exposure-notifications-server/pkg/server" | ||
|
|
||
| "github.com/gorilla/mux" | ||
| ) | ||
|
|
||
| func main() { | ||
| ctx, done := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM) | ||
|
|
||
| logger := logging.NewLoggerFromEnv(). | ||
| With("build_id", buildinfo.BuildID). | ||
| With("build_tag", buildinfo.BuildTag) | ||
| ctx = logging.WithLogger(ctx, logger) | ||
|
|
||
| defer func() { | ||
| done() | ||
| if r := recover(); r != nil { | ||
| logger.Fatalw("application panic", "panic", r) | ||
| } | ||
| }() | ||
|
|
||
| err := realMain(ctx) | ||
| done() | ||
|
|
||
| if err != nil { | ||
| logger.Fatal(err) | ||
| } | ||
| logger.Info("successful shutdown") | ||
| } | ||
|
|
||
| func realMain(ctx context.Context) error { | ||
| logger := logging.FromContext(ctx) | ||
|
|
||
| cfg, err := config.NewMetricsRegistrarConfig(ctx) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to process config: %w", err) | ||
| } | ||
|
|
||
| // Setup monitoring | ||
| logger.Info("configuring observability exporter") | ||
| oeConfig := cfg.ObservabilityExporterConfig() | ||
| oe, err := observability.NewFromEnv(oeConfig) | ||
| if err != nil { | ||
| return fmt.Errorf("unable to create ObservabilityExporter provider: %w", err) | ||
| } | ||
| if err := oe.StartExporter(ctx); err != nil { | ||
| return fmt.Errorf("error initializing observability exporter: %w", err) | ||
| } | ||
| defer oe.Close() | ||
| ctx, obs := middleware.WithObservability(ctx) | ||
| logger.Infow("observability exporter", "config", oeConfig) | ||
|
|
||
| // Create the renderer | ||
| h, err := render.New(ctx, nil, cfg.DevMode) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to create renderer: %w", err) | ||
| } | ||
|
|
||
| // Create the router | ||
| r := mux.NewRouter() | ||
|
|
||
| // Common observability context | ||
| r.Use(obs) | ||
|
|
||
| // Request ID injection | ||
| populateRequestID := middleware.PopulateRequestID(h) | ||
| r.Use(populateRequestID) | ||
|
|
||
| // Logger injection | ||
| populateLogger := middleware.PopulateLogger(logger) | ||
| r.Use(populateLogger) | ||
|
|
||
| // Recovery injection | ||
| recovery := middleware.Recovery(h) | ||
| r.Use(recovery) | ||
|
|
||
| metricsRegistrarController := metricsregistrar.New(cfg, h) | ||
| if err := metricsRegistrarController.CreateMetrics(ctx); err != nil { | ||
| return fmt.Errorf("failed to create metrics: %w", err) | ||
| } | ||
| r.Handle("/", metricsRegistrarController.HandleRoot()).Methods(http.MethodGet) | ||
|
|
||
| srv, err := server.New(cfg.Port) | ||
| if err != nil { | ||
| return fmt.Errorf("failed to create server: %w", err) | ||
| } | ||
| logger.Infow("server listening", "port", cfg.Port) | ||
| return srv.ServeHTTPHandler(ctx, r) | ||
| } |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Oops, something went wrong.