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configure_api.go
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configure_api.go
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// _ _
// __ _____ __ ___ ___ __ _| |_ ___
// \ \ /\ / / _ \/ _` \ \ / / |/ _` | __/ _ \
// \ V V / __/ (_| |\ V /| | (_| | || __/
// \_/\_/ \___|\__,_| \_/ |_|\__,_|\__\___|
//
// Copyright © 2016 - 2021 SeMI Technologies B.V. All rights reserved.
//
// CONTACT: hello@semi.technology
//
package rest
import (
"context"
"fmt"
"net/http"
"os"
"strings"
"time"
_ "net/http/pprof"
openapierrors "github.com/go-openapi/errors"
"github.com/go-openapi/runtime"
"github.com/pkg/errors"
"github.com/semi-technologies/weaviate/adapters/handlers/rest/operations"
"github.com/semi-technologies/weaviate/adapters/handlers/rest/state"
"github.com/semi-technologies/weaviate/adapters/repos/classifications"
"github.com/semi-technologies/weaviate/adapters/repos/db"
"github.com/semi-technologies/weaviate/adapters/repos/db/vector/hnsw"
modulestorage "github.com/semi-technologies/weaviate/adapters/repos/modules"
schemarepo "github.com/semi-technologies/weaviate/adapters/repos/schema"
"github.com/semi-technologies/weaviate/entities/models"
"github.com/semi-technologies/weaviate/entities/moduletools"
"github.com/semi-technologies/weaviate/entities/search"
modimage "github.com/semi-technologies/weaviate/modules/img2vec-neural"
modqna "github.com/semi-technologies/weaviate/modules/qna-transformers"
modcontextionary "github.com/semi-technologies/weaviate/modules/text2vec-contextionary"
modtransformers "github.com/semi-technologies/weaviate/modules/text2vec-transformers"
"github.com/semi-technologies/weaviate/usecases/classification"
"github.com/semi-technologies/weaviate/usecases/config"
"github.com/semi-technologies/weaviate/usecases/modules"
"github.com/semi-technologies/weaviate/usecases/objects"
schemaUC "github.com/semi-technologies/weaviate/usecases/schema"
"github.com/semi-technologies/weaviate/usecases/schema/migrate"
"github.com/semi-technologies/weaviate/usecases/traverser"
libvectorizer "github.com/semi-technologies/weaviate/usecases/vectorizer"
"github.com/sirupsen/logrus"
)
const MinimumRequiredContextionaryVersion = "1.0.2"
func makeConfigureServer(appState *state.State) func(*http.Server, string, string) {
return func(s *http.Server, scheme, addr string) {
// Add properties to the config
appState.ServerConfig.Hostname = addr
appState.ServerConfig.Scheme = scheme
}
}
type vectorRepo interface {
objects.BatchVectorRepo
traverser.VectorSearcher
classification.VectorRepo
SetSchemaGetter(schemaUC.SchemaGetter)
WaitForStartup(ctx context.Context) error
Shutdown(ctx context.Context) error
}
type explorer interface {
GetClass(ctx context.Context, params traverser.GetParams) ([]interface{}, error)
Concepts(ctx context.Context, params traverser.ExploreParams) ([]search.Result, error)
}
func configureAPI(api *operations.WeaviateAPI) http.Handler {
go func() {
fmt.Println(http.ListenAndServe(":6060", nil))
}()
ctx := context.Background()
ctx, cancel := context.WithTimeout(ctx, 60*time.Minute)
defer cancel()
appState := startupRoutine(ctx)
err := registerModules(appState)
if err != nil {
appState.Logger.
WithField("action", "startup").WithError(err).
Fatal("modules didn't load")
}
// now that modules are loaded we can run the remaining config validation
// which is module dependent
if err := appState.ServerConfig.Config.Validate(appState.Modules); err != nil {
appState.Logger.
WithField("action", "startup").WithError(err).
Fatal("invalid config")
}
api.ServeError = openapierrors.ServeError
api.JSONConsumer = runtime.JSONConsumer()
api.OidcAuth = func(token string, scopes []string) (*models.Principal, error) {
return appState.OIDC.ValidateAndExtract(token, scopes)
}
api.Logger = func(msg string, args ...interface{}) {
appState.Logger.WithField("action", "restapi_management").Infof(msg, args...)
}
var vectorRepo vectorRepo
var vectorMigrator migrate.Migrator
var migrator migrate.Migrator
var explorer explorer
var schemaRepo schemaUC.Repo
var classifierRepo classification.Repo
repo := db.New(appState.Logger, db.Config{
RootPath: appState.ServerConfig.Config.Persistence.DataPath,
})
vectorMigrator = db.NewMigrator(repo, appState.Logger)
vectorRepo = repo
migrator = vectorMigrator
explorer = traverser.NewExplorer(repo, libvectorizer.NormalizedDistance,
appState.Logger, appState.Modules)
schemaRepo, err = schemarepo.NewRepo(
appState.ServerConfig.Config.Persistence.DataPath, appState.Logger)
if err != nil {
appState.Logger.
WithField("action", "startup").WithError(err).
Fatal("could not initialize schema repo")
os.Exit(1)
}
classifierRepo, err = classifications.NewRepo(
appState.ServerConfig.Config.Persistence.DataPath, appState.Logger)
if err != nil {
appState.Logger.
WithField("action", "startup").WithError(err).
Fatal("could not initialize classifications repo")
os.Exit(1)
}
schemaManager, err := schemaUC.NewManager(migrator, schemaRepo,
appState.Logger, appState.Authorizer, appState.ServerConfig.Config,
hnsw.ParseUserConfig, appState.Modules, appState.Modules)
if err != nil {
appState.Logger.
WithField("action", "startup").WithError(err).
Fatal("could not initialize schema manager")
os.Exit(1)
}
appState.SchemaManager = schemaManager
vectorRepo.SetSchemaGetter(schemaManager)
appState.Modules.SetSchemaGetter(schemaManager)
err = vectorRepo.WaitForStartup(ctx)
if err != nil {
appState.Logger.
WithError(err).
WithField("action", "startup").WithError(err).
Fatal("db didn't start up")
os.Exit(1)
}
kindsManager := objects.NewManager(appState.Locks,
schemaManager, appState.ServerConfig, appState.Logger,
appState.Authorizer, appState.Modules, vectorRepo, appState.Modules)
batchKindsManager := objects.NewBatchManager(vectorRepo, appState.Modules,
appState.Locks, schemaManager, appState.ServerConfig, appState.Logger,
appState.Authorizer)
kindsTraverser := traverser.NewTraverser(appState.ServerConfig, appState.Locks,
appState.Logger, appState.Authorizer, vectorRepo, explorer, schemaManager)
classifier := classification.New(schemaManager, classifierRepo, vectorRepo, appState.Authorizer,
appState.Logger, appState.Modules)
updateSchemaCallback := makeUpdateSchemaCall(appState.Logger, appState, kindsTraverser)
schemaManager.RegisterSchemaUpdateCallback(updateSchemaCallback)
setupSchemaHandlers(api, schemaManager)
setupKindHandlers(api, kindsManager, appState.ServerConfig.Config, appState.Logger, appState.Modules)
setupKindBatchHandlers(api, batchKindsManager)
setupGraphQLHandlers(api, appState)
setupMiscHandlers(api, appState.ServerConfig, schemaManager, appState.Modules)
setupClassificationHandlers(api, classifier)
api.ServerShutdown = func() {
ctx, cancel := context.WithTimeout(context.Background(), 60*time.Second)
defer cancel()
if err := repo.Shutdown(ctx); err != nil {
panic(err)
}
}
configureServer = makeConfigureServer(appState)
setupMiddlewares := makeSetupMiddlewares(appState)
setupGlobalMiddleware := makeSetupGlobalMiddleware(appState)
// while we accept an overall longer startup, e.g. due to a recovery, we
// still want to limit the module startup context, as that's mostly service
// discovery / dependency checking
moduleCtx, cancel := context.WithTimeout(ctx, 120*time.Second)
defer cancel()
err = initModules(moduleCtx, appState)
if err != nil {
appState.Logger.
WithField("action", "startup").WithError(err).
Fatal("modules didn't initialize")
}
// manually update schema once
schema := schemaManager.GetSchemaSkipAuth()
updateSchemaCallback(schema)
return setupGlobalMiddleware(api.Serve(setupMiddlewares))
}
// TODO: Split up and don't write into global variables. Instead return an appState
func startupRoutine(ctx context.Context) *state.State {
appState := &state.State{}
logger := logger()
appState.Logger = logger
logger.WithField("action", "startup").WithField("startup_time_left", timeTillDeadline(ctx)).
Debug("created startup context, nothing done so far")
// Load the config using the flags
serverConfig := &config.WeaviateConfig{}
appState.ServerConfig = serverConfig
err := serverConfig.LoadConfig(connectorOptionGroup, logger)
if err != nil {
logger.WithField("action", "startup").WithError(err).Error("could not load config")
logger.Exit(1)
}
logger.WithFields(logrus.Fields{
"action": "startup",
"default_vectorizer_module": serverConfig.Config.DefaultVectorizerModule,
}).Infof("the default vectorizer modules is set to %q, as a result all new "+
"schema classes without an explicit vectorizer setting, will use this "+
"vectorizer", serverConfig.Config.DefaultVectorizerModule)
logger.WithFields(logrus.Fields{
"action": "startup",
"auto_schema_enabled": serverConfig.Config.AutoSchema.Enabled,
}).Infof("auto schema enabled setting is set to \"%v\"", serverConfig.Config.AutoSchema.Enabled)
logger.WithField("action", "startup").WithField("startup_time_left", timeTillDeadline(ctx)).
Debug("config loaded")
appState.OIDC = configureOIDC(appState)
appState.AnonymousAccess = configureAnonymousAccess(appState)
appState.Authorizer = configureAuthorizer(appState)
logger.WithField("action", "startup").WithField("startup_time_left", timeTillDeadline(ctx)).
Debug("configured OIDC and anonymous access client")
appState.Locks = &dummyLock{}
logger.WithField("action", "startup").WithField("startup_time_left", timeTillDeadline(ctx)).
Debug("initialized schema")
return appState
}
// logger does not parse the regular config object, as logging needs to be
// configured before the configuration is even loaded/parsed. We are thus
// "manually" reading the desired env vars and set reasonable defaults if they
// are not set.
//
// Defaults to log level info and json format
func logger() *logrus.Logger {
logger := logrus.New()
if os.Getenv("LOG_FORMAT") != "text" {
logger.SetFormatter(&logrus.JSONFormatter{})
}
switch os.Getenv("LOG_LEVEL") {
case "debug":
logger.SetLevel(logrus.DebugLevel)
case "trace":
logger.SetLevel(logrus.TraceLevel)
default:
logger.SetLevel(logrus.InfoLevel)
}
return logger
}
type dummyLock struct{}
func (d *dummyLock) LockConnector() (func() error, error) {
return func() error { return nil }, nil
}
func (d *dummyLock) LockSchema() (func() error, error) {
return func() error { return nil }, nil
}
// everything hard-coded right now, to be made dynmaic (from go plugins later)
func registerModules(appState *state.State) error {
appState.Modules = modules.NewProvider()
enabledModules := map[string]bool{}
if len(appState.ServerConfig.Config.EnableModules) > 0 {
modules := strings.Split(appState.ServerConfig.Config.EnableModules, ",")
for _, module := range modules {
enabledModules[strings.TrimSpace(module)] = true
}
}
if _, ok := enabledModules["text2vec-contextionary"]; ok {
appState.Modules.Register(modcontextionary.New())
}
if _, ok := enabledModules["text2vec-transformers"]; ok {
appState.Modules.Register(modtransformers.New())
}
if _, ok := enabledModules["qna-transformers"]; ok {
appState.Modules.Register(modqna.New())
}
if _, ok := enabledModules["img2vec-neural"]; ok {
appState.Modules.Register(modimage.New())
}
return nil
}
func initModules(ctx context.Context, appState *state.State) error {
storageProvider, err := modulestorage.NewRepo(
appState.ServerConfig.Config.Persistence.DataPath, appState.Logger)
if err != nil {
return errors.Wrap(err, "init storage provider")
}
// TODO: gh-1481 don't pass entire appState in, but only what's needed. Probably only
// config?
moduleParams := moduletools.NewInitParams(storageProvider, appState,
appState.Logger)
if err := appState.Modules.Init(ctx, moduleParams); err != nil {
return errors.Wrap(err, "init modules")
}
return nil
}