rename folder extensions -> services

Signed-off-by: Christian Richter <crichter@owncloud.com>

services/settings/pkg/command/server.go

@@ -0,0 +1,89 @@
+package command
+
+import (
+	"context"
+	"fmt"
+	"os"
+
+	"github.com/oklog/run"
+	"github.com/owncloud/ocis/v2/extensions/settings/pkg/config"
+	"github.com/owncloud/ocis/v2/extensions/settings/pkg/config/parser"
+	"github.com/owncloud/ocis/v2/extensions/settings/pkg/logging"
+	"github.com/owncloud/ocis/v2/extensions/settings/pkg/metrics"
+	"github.com/owncloud/ocis/v2/extensions/settings/pkg/server/debug"
+	"github.com/owncloud/ocis/v2/extensions/settings/pkg/server/grpc"
+	"github.com/owncloud/ocis/v2/extensions/settings/pkg/server/http"
+	"github.com/owncloud/ocis/v2/extensions/settings/pkg/tracing"
+	"github.com/owncloud/ocis/v2/ocis-pkg/version"
+	"github.com/urfave/cli/v2"
+)
+
+// Server is the entrypoint for the server command.
+func Server(cfg *config.Config) *cli.Command {
+	return &cli.Command{
+		Name:     "server",
+		Usage:    fmt.Sprintf("start %s extension without runtime (unsupervised mode)", cfg.Service.Name),
+		Category: "server",
+		Before: func(c *cli.Context) error {
+			err := parser.ParseConfig(cfg)
+			if err != nil {
+				fmt.Printf("%v", err)
+				os.Exit(1)
+			}
+			return err
+		},
+		Action: func(c *cli.Context) error {
+			logger := logging.Configure(cfg.Service.Name, cfg.Log)
+			err := tracing.Configure(cfg)
+			if err != nil {
+				return err
+			}
+
+			servers := run.Group{}
+			ctx, cancel := func() (context.Context, context.CancelFunc) {
+				if cfg.Context == nil {
+					return context.WithCancel(context.Background())
+				}
+				return context.WithCancel(cfg.Context)
+			}()
+			defer cancel()
+
+			mtrcs := metrics.New()
+			mtrcs.BuildInfo.WithLabelValues(version.GetString()).Set(1)
+
+			// prepare an HTTP server and add it to the group run.
+			httpServer := http.Server(
+				http.Name(cfg.Service.Name),
+				http.Logger(logger),
+				http.Context(ctx),
+				http.Config(cfg),
+				http.Metrics(mtrcs),
+			)
+			servers.Add(httpServer.Run, func(_ error) {
+				logger.Info().Str("server", "http").Msg("Shutting down server")
+				cancel()
+			})
+
+			// prepare a gRPC server and add it to the group run.
+			grpcServer := grpc.Server(grpc.Name(cfg.Service.Name), grpc.Logger(logger), grpc.Context(ctx), grpc.Config(cfg), grpc.Metrics(mtrcs))
+			servers.Add(grpcServer.Run, func(_ error) {
+				logger.Info().Str("server", "grpc").Msg("Shutting down server")
+				cancel()
+			})
+
+			// prepare a debug server and add it to the group run.
+			debugServer, err := debug.Server(debug.Logger(logger), debug.Context(ctx), debug.Config(cfg))
+			if err != nil {
+				logger.Error().Err(err).Str("server", "debug").Msg("Failed to initialize server")
+				return err
+			}
+
+			servers.Add(debugServer.ListenAndServe, func(_ error) {
+				_ = debugServer.Shutdown(ctx)
+				cancel()
+			})
+
+			return servers.Run()
+		},
+	}
+}