Initial QSfera import

Server/services/webfinger/pkg/command/server.go

@@ -0,0 +1,136 @@
+package command
+
+import (
+	"context"
+	"fmt"
+	"os/signal"
+
+	"github.com/qsfera/server/pkg/config/configlog"
+	"github.com/qsfera/server/pkg/log"
+	"github.com/qsfera/server/pkg/runner"
+	"github.com/qsfera/server/pkg/tracing"
+	"github.com/qsfera/server/pkg/version"
+	"github.com/qsfera/server/services/webfinger/pkg/config"
+	"github.com/qsfera/server/services/webfinger/pkg/config/parser"
+	"github.com/qsfera/server/services/webfinger/pkg/metrics"
+	"github.com/qsfera/server/services/webfinger/pkg/relations"
+	"github.com/qsfera/server/services/webfinger/pkg/server/debug"
+	"github.com/qsfera/server/services/webfinger/pkg/server/http"
+	"github.com/qsfera/server/services/webfinger/pkg/service/v0"
+
+	"github.com/spf13/cobra"
+)
+
+// Server is the entrypoint for the server command.
+func Server(cfg *config.Config) *cobra.Command {
+	return &cobra.Command{
+		Use:   "server",
+		Short: fmt.Sprintf("start the %s service without runtime (unsupervised mode)", cfg.Service.Name),
+		PreRunE: func(cmd *cobra.Command, args []string) error {
+			return configlog.ReturnFatal(parser.ParseConfig(cfg))
+		},
+		RunE: func(cmd *cobra.Command, args []string) error {
+			logger := log.Configure(cfg.Service.Name, cfg.Commons, cfg.LogLevel)
+			traceProvider, err := tracing.GetTraceProvider(cmd.Context(), cfg.Commons.TracesExporter, cfg.Service.Name)
+			if err != nil {
+				return err
+			}
+
+			var cancel context.CancelFunc
+			if cfg.Context == nil {
+				cfg.Context, cancel = signal.NotifyContext(context.Background(), runner.StopSignals...)
+				defer cancel()
+			}
+			ctx := cfg.Context
+
+			m := metrics.New(metrics.Logger(logger))
+			m.BuildInfo.WithLabelValues(version.GetString()).Set(1)
+
+			gr := runner.NewGroup()
+			{
+				relationProviders, err := getRelationProviders(cfg)
+				if err != nil {
+					logger.Error().Err(err).Msg("relation provider init")
+					return err
+				}
+
+				svc, err := service.New(
+					service.Logger(logger),
+					service.Config(cfg),
+					service.WithRelationProviders(relationProviders),
+				)
+				if err != nil {
+					logger.Error().Err(err).Msg("handler init")
+					return err
+				}
+				svc = service.NewInstrument(svc, m)
+				svc = service.NewLogging(svc, logger) // this logs service specific data
+				svc = service.NewTracing(svc, traceProvider)
+
+				server, err := http.Server(
+					http.Logger(logger),
+					http.Context(ctx),
+					http.Config(cfg),
+					http.Service(svc),
+					http.TraceProvider(traceProvider),
+				)
+
+				if err != nil {
+					logger.Info().
+						Err(err).
+						Str("server", "http").
+						Msg("Failed to initialize server")
+
+					return err
+				}
+
+				gr.Add(runner.NewGoMicroHttpServerRunner(cfg.Service.Name+".http", server))
+			}
+
+			{
+				debugServer, err := debug.Server(
+					debug.Logger(logger),
+					debug.Context(ctx),
+					debug.Config(cfg),
+				)
+
+				if err != nil {
+					logger.Info().Err(err).Str("transport", "debug").Msg("Failed to initialize server")
+					return err
+				}
+
+				gr.Add(runner.NewGolangHttpServerRunner(cfg.Service.Name+".debug", debugServer))
+			}
+
+			grResults := gr.Run(ctx)
+
+			// return the first non-nil error found in the results
+			for _, grResult := range grResults {
+				if grResult.RunnerError != nil {
+					return grResult.RunnerError
+				}
+			}
+			return nil
+		},
+	}
+}
+
+func getRelationProviders(cfg *config.Config) (map[string]service.RelationProvider, error) {
+	rels := map[string]service.RelationProvider{}
+	for _, relationURI := range cfg.Relations {
+		switch relationURI {
+		case relations.OpenIDConnectRel:
+			rels[relationURI] = relations.OpenIDDiscovery(cfg.IDP, cfg.OIDCClientConfigs)
+		case relations.QsferaInstanceRel:
+			var err error
+			rels[relationURI], err = relations.QsferaInstance(cfg.Instances, cfg.QsferaURL)
+			if err != nil {
+				return nil, err
+			}
+		default:
+			return nil, fmt.Errorf("unknown relation '%s'", relationURI)
+		}
+	}
+
+	return rels, nil
+}