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/
admin.go
159 lines (141 loc) · 4.56 KB
/
admin.go
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package main
import (
"context"
"net/http"
"os"
"strings"
"sync"
"github.com/99designs/gqlgen/graphql/handler"
"github.com/99designs/gqlgen/graphql/handler/extension"
"github.com/99designs/gqlgen/graphql/handler/transport"
"github.com/99designs/gqlgen/graphql/playground"
"github.com/go-chi/chi"
"github.com/go-chi/chi/middleware"
"github.com/go-redis/redis/v7"
"github.com/rs/cors"
"github.com/sirupsen/logrus"
mongo_repo "github.com/victorkt/flaggio/internal/repository/mongodb"
redis_repo "github.com/victorkt/flaggio/internal/repository/redis"
"github.com/victorkt/flaggio/internal/server/admin"
)
func startAdmin(ctx context.Context, wg *sync.WaitGroup, logger *logrus.Entry) error {
logger.Debug("starting admin server ...")
// connect to mongo
db, err := newMongoDatabase(ctx, cfg.databaseURI, logger, wg)
if err != nil {
return err
}
var redisClient *redis.Client
if cfg.isCachingEnabled() {
// connect to redis
redisClient, err = newRedisClient(ctx, cfg.redisURI, logger, wg)
if err != nil {
return err
}
}
// setup repositories
flagRepo, err := mongo_repo.NewFlagRepository(ctx, db)
if err != nil {
return err
}
segmentRepo, err := mongo_repo.NewSegmentRepository(ctx, db)
if err != nil {
return err
}
evalRepo, err := mongo_repo.NewEvaluationRepository(ctx, db)
if err != nil {
return err
}
userRepo, err := mongo_repo.NewUserRepository(ctx, db)
if err != nil {
return err
}
variantRepo := mongo_repo.NewVariantRepository(flagRepo.(*mongo_repo.FlagRepository))
ruleRepo := mongo_repo.NewRuleRepository(
flagRepo.(*mongo_repo.FlagRepository), segmentRepo.(*mongo_repo.SegmentRepository))
if redisClient != nil {
flagRepo = redis_repo.NewFlagRepository(redisClient, flagRepo)
segmentRepo = redis_repo.NewSegmentRepository(redisClient, segmentRepo)
variantRepo = redis_repo.NewVariantRepository(redisClient, variantRepo, flagRepo)
ruleRepo = redis_repo.NewRuleRepository(redisClient, ruleRepo, flagRepo, segmentRepo)
evalRepo = redis_repo.NewEvaluationRepository(redisClient, evalRepo)
}
// setup graphql resolver
resolver := &admin.Resolver{
FlagRepo: flagRepo,
VariantRepo: variantRepo,
RuleRepo: ruleRepo,
SegmentRepo: segmentRepo,
EvaluationRepo: evalRepo,
UserRepo: userRepo,
}
// setup graphql server
gqlSrv := handler.New(
admin.NewExecutableSchema(admin.Config{Resolvers: resolver}),
)
gqlSrv.AddTransport(transport.POST{})
gqlSrv.Use(extension.Introspection{})
// setup router
router := chi.NewRouter()
router.Use(
middleware.Recoverer,
middleware.RequestID,
middleware.Heartbeat("/ready"),
middleware.RequestLogger(&middleware.DefaultLogFormatter{
Logger: logger,
NoColor: cfg.logFormatter != logFormatterText,
}),
tracingMiddleware("flaggio-admin", logger),
cors.New(cors.Options{
AllowedOrigins: cfg.corsAllowedOrigins.Value(),
AllowedHeaders: cfg.corsAllowedHeaders.Value(),
AllowedMethods: []string{http.MethodGet, http.MethodPost, http.MethodOptions},
AllowCredentials: true,
Debug: cfg.corsDebug,
}).Handler,
)
router.Method("POST", "/query", gqlSrv)
if cfg.playgroundEnabled {
router.Get("/playground", playground.Handler("GraphQL playground", "/query"))
}
// setup admin UI routes
if !cfg.noAdminUI {
workDir, _ := os.Getwd()
buildPath := workDir + "/web/build"
if cfg.uiBuildPath != "" {
buildPath = cfg.uiBuildPath
}
fileServer(router, "/static", http.Dir(buildPath+"/static"))
fileServer(router, "/images", http.Dir(buildPath+"/images"))
router.Get("/manifest.json", func(w http.ResponseWriter, r *http.Request) {
http.ServeFile(w, r, buildPath+"/manifest.json")
})
router.Get("/*", func(w http.ResponseWriter, r *http.Request) {
http.ServeFile(w, r, buildPath+"/index.html")
})
}
logger.WithFields(logrus.Fields{
"caching": cfg.isCachingEnabled(),
"tracing": cfg.isTracingEnabled(),
"listening": cfg.adminAddr,
"playground": cfg.playgroundEnabled,
"admin_ui": !cfg.noAdminUI,
}).Info("admin server started")
// setup http server
srv := newHTTPServer(ctx, cfg.adminAddr, router, logger, wg)
return srv.ListenAndServe()
}
func fileServer(r chi.Router, path string, root http.FileSystem) {
if strings.ContainsAny(path, "{}*") {
panic("FileServer does not permit URL parameters.")
}
fs := http.StripPrefix(path, http.FileServer(root))
if path != "/" && path[len(path)-1] != '/' {
r.Get(path, http.RedirectHandler(path+"/", http.StatusMovedPermanently).ServeHTTP)
path += "/"
}
path += "*"
r.Get(path, func(w http.ResponseWriter, r *http.Request) {
fs.ServeHTTP(w, r)
})
}