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optimus.go
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optimus.go
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package server
import (
"bytes"
"context"
"fmt"
"io"
"net/http"
"os"
"time"
grpc_prometheus "github.com/grpc-ecosystem/go-grpc-prometheus"
"github.com/hashicorp/go-hclog"
hPlugin "github.com/hashicorp/go-plugin"
"github.com/jackc/pgx/v5/pgxpool"
"github.com/mitchellh/mapstructure"
"github.com/prometheus/client_golang/prometheus"
"github.com/raystack/salt/log"
slackapi "github.com/slack-go/slack"
"google.golang.org/grpc"
"github.com/raystack/optimus/config"
"github.com/raystack/optimus/core/event/moderator"
jHandler "github.com/raystack/optimus/core/job/handler/v1beta1"
jResolver "github.com/raystack/optimus/core/job/resolver"
jService "github.com/raystack/optimus/core/job/service"
rModel "github.com/raystack/optimus/core/resource"
rHandler "github.com/raystack/optimus/core/resource/handler/v1beta1"
rService "github.com/raystack/optimus/core/resource/service"
schedulerHandler "github.com/raystack/optimus/core/scheduler/handler/v1beta1"
schedulerResolver "github.com/raystack/optimus/core/scheduler/resolver"
schedulerService "github.com/raystack/optimus/core/scheduler/service"
tHandler "github.com/raystack/optimus/core/tenant/handler/v1beta1"
tService "github.com/raystack/optimus/core/tenant/service"
"github.com/raystack/optimus/ext/notify/pagerduty"
"github.com/raystack/optimus/ext/notify/slack"
bqStore "github.com/raystack/optimus/ext/store/bigquery"
"github.com/raystack/optimus/ext/transport/kafka"
"github.com/raystack/optimus/internal/compiler"
"github.com/raystack/optimus/internal/errors"
"github.com/raystack/optimus/internal/models"
"github.com/raystack/optimus/internal/store/postgres"
jRepo "github.com/raystack/optimus/internal/store/postgres/job"
"github.com/raystack/optimus/internal/store/postgres/resource"
schedulerRepo "github.com/raystack/optimus/internal/store/postgres/scheduler"
"github.com/raystack/optimus/internal/store/postgres/tenant"
"github.com/raystack/optimus/internal/telemetry"
"github.com/raystack/optimus/plugin"
pb "github.com/raystack/optimus/protos/raystack/optimus/core/v1beta1"
oHandler "github.com/raystack/optimus/server/handler/v1beta1"
)
const keyLength = 32
type setupFn func() error
type OptimusServer struct {
conf *config.ServerConfig
logger log.Logger
dbPool *pgxpool.Pool
key *[keyLength]byte
serverAddr string
grpcServer *grpc.Server
httpServer *http.Server
pluginRepo *models.PluginRepository
cleanupFn []func()
eventHandler moderator.Handler
}
func New(conf *config.ServerConfig) (*OptimusServer, error) {
addr := fmt.Sprintf(":%d", conf.Serve.Port)
server := &OptimusServer{
conf: conf,
serverAddr: addr,
logger: NewLogger(conf.Log.Level.String()),
}
if err := checkRequiredConfigs(conf.Serve); err != nil {
return server, err
}
setupFns := []setupFn{
server.setupPublisher,
server.setupPlugins,
server.setupTelemetry,
server.setupAppKey,
server.setupDB,
server.setupGRPCServer,
server.setupHandlers,
server.setupMonitoring,
server.setupHTTPProxy,
}
for _, fn := range setupFns {
if err := fn(); err != nil {
return server, err
}
}
server.logger.Info("Starting Optimus", "version", config.BuildVersion)
server.startListening()
return server, nil
}
func (s *OptimusServer) setupPublisher() error {
if s.conf.Publisher == nil {
s.eventHandler = moderator.NoOpHandler{}
return nil
}
ch := make(chan []byte, s.conf.Publisher.Buffer)
var worker *moderator.Worker
switch s.conf.Publisher.Type {
case "kafka":
var kafkaConfig config.PublisherKafkaConfig
if err := mapstructure.Decode(s.conf.Publisher.Config, &kafkaConfig); err != nil {
return err
}
writer := kafka.NewWriter(kafkaConfig.BrokerURLs, kafkaConfig.Topic, s.logger)
interval := time.Second * time.Duration(kafkaConfig.BatchIntervalSecond)
worker = moderator.NewWorker(ch, writer, interval, s.logger)
default:
return fmt.Errorf("publisher with type [%s] is not recognized", s.conf.Publisher.Type)
}
ctx, cancel := context.WithCancel(context.Background())
go worker.Run(ctx)
s.cleanupFn = append(s.cleanupFn, func() {
cancel()
if err := worker.Close(); err != nil {
s.logger.Error("error closing publishing worker: %v", err)
}
})
s.eventHandler = moderator.NewEventHandler(ch, s.logger)
return nil
}
func (s *OptimusServer) setupPlugins() error {
pluginLogLevel := hclog.Info
if s.conf.Log.Level == config.LogLevelDebug {
pluginLogLevel = hclog.Debug
}
pluginLoggerOpt := &hclog.LoggerOptions{
Name: "optimus",
Output: os.Stdout,
Level: pluginLogLevel,
}
pluginLogger := hclog.New(pluginLoggerOpt)
s.cleanupFn = append(s.cleanupFn, hPlugin.CleanupClients)
var pluginArgs []string
if s.conf.Telemetry.JaegerAddr != "" {
pluginArgs = append(pluginArgs, "-t", s.conf.Telemetry.JaegerAddr)
}
// discover and load plugins.
var err error
s.pluginRepo, err = plugin.Initialize(pluginLogger, pluginArgs...)
return err
}
func (s *OptimusServer) setupTelemetry() error {
teleShutdown, err := telemetry.Init(s.logger, s.conf.Telemetry)
if err != nil {
return err
}
s.cleanupFn = append(s.cleanupFn, teleShutdown)
return nil
}
func (s *OptimusServer) setupAppKey() error {
var err error
s.key, err = applicationKeyFromString(s.conf.Serve.AppKey)
if err != nil {
return err
}
return nil
}
func applicationKeyFromString(appKey string) (*[keyLength]byte, error) {
if len(appKey) < keyLength {
return nil, errors.InvalidArgument("application_key", "application key should be 32 chars in length")
}
var key [keyLength]byte
_, err := io.ReadFull(bytes.NewBufferString(appKey), key[:])
return &key, err
}
func (s *OptimusServer) setupDB() error {
err := postgres.Migrate(s.conf.Serve.DB.DSN)
if err != nil {
return fmt.Errorf("error initializing migration: %w", err)
}
s.dbPool, err = postgres.Open(s.conf.Serve.DB)
if err != nil {
return fmt.Errorf("postgres.Open: %w", err)
}
return nil
}
func (s *OptimusServer) setupGRPCServer() error {
var err error
s.grpcServer, err = setupGRPCServer(s.logger)
return err
}
func (s *OptimusServer) setupMonitoring() error {
grpc_prometheus.Register(s.grpcServer)
grpc_prometheus.EnableHandlingTimeHistogram(grpc_prometheus.WithHistogramBuckets(prometheus.DefBuckets))
return nil
}
func (s *OptimusServer) setupHTTPProxy() error {
srv, cleanup, err := prepareHTTPProxy(s.serverAddr, s.grpcServer)
s.httpServer = srv
s.cleanupFn = append(s.cleanupFn, cleanup)
return err
}
func (s *OptimusServer) startListening() {
// run our server in a goroutine so that it doesn't block to wait for termination requests
go func() {
s.logger.Info("Listening at", "address", s.serverAddr)
if err := s.httpServer.ListenAndServe(); err != nil {
if err != http.ErrServerClosed {
s.logger.Fatal("server error", "error", err)
}
}
}()
}
func (s *OptimusServer) Shutdown() {
s.logger.Warn("Shutting down server")
if s.httpServer != nil {
// Create a deadline to wait for server
ctxProxy, cancelProxy := context.WithTimeout(context.Background(), shutdownWait)
defer cancelProxy()
if err := s.httpServer.Shutdown(ctxProxy); err != nil {
s.logger.Error("Error in proxy shutdown", err)
}
}
if s.grpcServer != nil {
s.grpcServer.GracefulStop()
}
for _, fn := range s.cleanupFn {
fn() // Todo: log all the errors from cleanup before exit
}
if s.dbPool != nil {
s.dbPool.Close()
}
s.logger.Info("Server shutdown complete")
}
func (s *OptimusServer) setupHandlers() error {
// Tenant Bounded Context Setup
tProjectRepo := tenant.NewProjectRepository(s.dbPool)
tNamespaceRepo := tenant.NewNamespaceRepository(s.dbPool)
tSecretRepo := tenant.NewSecretRepository(s.dbPool)
tProjectService := tService.NewProjectService(tProjectRepo)
tNamespaceService := tService.NewNamespaceService(tNamespaceRepo)
tSecretService := tService.NewSecretService(s.key, tSecretRepo, s.logger)
tenantService := tService.NewTenantService(tProjectService, tNamespaceService, tSecretService, s.logger)
// Scheduler bounded context
jobRunRepo := schedulerRepo.NewJobRunRepository(s.dbPool)
operatorRunRepository := schedulerRepo.NewOperatorRunRepository(s.dbPool)
jobProviderRepo := schedulerRepo.NewJobProviderRepository(s.dbPool)
notificationContext, cancelNotifiers := context.WithCancel(context.Background())
s.cleanupFn = append(s.cleanupFn, cancelNotifiers)
notifierChanels := map[string]schedulerService.Notifier{
"slack": slack.NewNotifier(notificationContext, slackapi.APIURL,
slack.DefaultEventBatchInterval,
func(err error) {
s.logger.Error("slack error accumulator", "error", err)
},
),
"pagerduty": pagerduty.NewNotifier(
notificationContext,
pagerduty.DefaultEventBatchInterval,
func(err error) {
s.logger.Error("pagerduty error accumulator", "error", err)
},
new(pagerduty.PagerDutyServiceImpl),
),
}
newEngine := compiler.NewEngine()
newPriorityResolver := schedulerResolver.NewSimpleResolver()
assetCompiler := schedulerService.NewJobAssetsCompiler(newEngine, s.pluginRepo, s.logger)
jobInputCompiler := schedulerService.NewJobInputCompiler(tenantService, newEngine, assetCompiler, s.logger)
notificationService := schedulerService.NewNotifyService(s.logger, jobProviderRepo, tenantService, notifierChanels)
newScheduler, err := NewScheduler(s.logger, s.conf, s.pluginRepo, tProjectService, tSecretService)
if err != nil {
return err
}
replayRepository := schedulerRepo.NewReplayRepository(s.dbPool)
replayWorker := schedulerService.NewReplayWorker(s.logger, replayRepository, newScheduler, jobProviderRepo, s.conf.Replay)
replayManager := schedulerService.NewReplayManager(s.logger, replayRepository, replayWorker, func() time.Time {
return time.Now().UTC()
}, s.conf.Replay)
replayValidator := schedulerService.NewValidator(replayRepository, newScheduler, jobProviderRepo)
replayService := schedulerService.NewReplayService(replayRepository, jobProviderRepo, replayValidator, s.logger)
newJobRunService := schedulerService.NewJobRunService(s.logger, jobProviderRepo, jobRunRepo, replayRepository, operatorRunRepository, newScheduler, newPriorityResolver, jobInputCompiler, s.eventHandler)
// Job Bounded Context Setup
jJobRepo := jRepo.NewJobRepository(s.dbPool)
jPluginService := jService.NewJobPluginService(s.pluginRepo, newEngine, s.logger)
jExternalUpstreamResolver, _ := jResolver.NewExternalUpstreamResolver(s.conf.ResourceManagers)
jInternalUpstreamResolver := jResolver.NewInternalUpstreamResolver(jJobRepo)
jUpstreamResolver := jResolver.NewUpstreamResolver(jJobRepo, jExternalUpstreamResolver, jInternalUpstreamResolver)
jJobService := jService.NewJobService(jJobRepo, jJobRepo, jJobRepo, jPluginService, jUpstreamResolver, tenantService, s.eventHandler, s.logger, newJobRunService, newScheduler)
// Resource Bounded Context
resourceRepository := resource.NewRepository(s.dbPool)
backupRepository := resource.NewBackupRepository(s.dbPool)
resourceManager := rService.NewResourceManager(resourceRepository, s.logger)
resourceService := rService.NewResourceService(s.logger, resourceRepository, jJobService, resourceManager, s.eventHandler)
backupService := rService.NewBackupService(backupRepository, resourceRepository, resourceManager, s.logger)
// Register datastore
bqClientProvider := bqStore.NewClientProvider()
bigqueryStore := bqStore.NewBigqueryDataStore(tenantService, bqClientProvider)
resourceManager.RegisterDatastore(rModel.Bigquery, bigqueryStore)
// Tenant Handlers
pb.RegisterSecretServiceServer(s.grpcServer, tHandler.NewSecretsHandler(s.logger, tSecretService))
pb.RegisterProjectServiceServer(s.grpcServer, tHandler.NewProjectHandler(s.logger, tProjectService))
pb.RegisterNamespaceServiceServer(s.grpcServer, tHandler.NewNamespaceHandler(s.logger, tNamespaceService))
// Resource Handler
pb.RegisterResourceServiceServer(s.grpcServer, rHandler.NewResourceHandler(s.logger, resourceService))
pb.RegisterJobRunServiceServer(s.grpcServer, schedulerHandler.NewJobRunHandler(s.logger, newJobRunService, notificationService))
// backup service
pb.RegisterBackupServiceServer(s.grpcServer, rHandler.NewBackupHandler(s.logger, backupService))
// version service
pb.RegisterRuntimeServiceServer(s.grpcServer, oHandler.NewVersionHandler(s.logger, config.BuildVersion))
// Core Job Handler
pb.RegisterJobSpecificationServiceServer(s.grpcServer, jHandler.NewJobHandler(jJobService, s.logger))
pb.RegisterReplayServiceServer(s.grpcServer, schedulerHandler.NewReplayHandler(s.logger, replayService))
replayManager.Initialize()
s.cleanupFn = append(s.cleanupFn, func() {
err = notificationService.Close()
if err != nil {
s.logger.Error("Error while closing event service: %s", err)
}
})
return nil
}