work on signals

Signed-off-by: Jörn Friedrich Dreyer <jfd@butonic.de>

ocis/pkg/command/root.go

@@ -1,7 +1,10 @@
 package command
 
 import (
+	"context"
 	"os"
+	"os/signal"
+	"syscall"
 
 	"github.com/owncloud/ocis/v2/ocis-pkg/clihelper"
 	"github.com/owncloud/ocis/v2/ocis-pkg/config"
@@ -25,5 +28,6 @@ func Execute() error {
 		)
 	}
 
-	return app.Run(os.Args)
+	ctx, _ := signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)
+	return app.RunContext(ctx, os.Args)
 }

ocis/pkg/command/server.go

@@ -21,7 +21,7 @@ func Server(cfg *config.Config) *cli.Command {
 		Action: func(c *cli.Context) error {
 			// Prefer the in-memory registry as the default when running in single-binary mode
 			r := runtime.New(cfg)
-			return r.Start()
+			return r.Start(c.Context)
 		},
 	}
 }

ocis/pkg/runtime/runtime.go

@@ -1,6 +1,8 @@
 package runtime
 
 import (
+	"context"
+
 	"github.com/owncloud/ocis/v2/ocis-pkg/config"
 	"github.com/owncloud/ocis/v2/ocis/pkg/runtime/service"
 )
@@ -18,6 +20,6 @@ func New(cfg *config.Config) Runtime {
 }
 
 // Start rpc runtime
-func (r *Runtime) Start() error {
+func (r *Runtime) Start(ctx context.Context) error {
-	return service.Start(service.WithConfig(r.c))
+	return service.Start(ctx, service.WithConfig(r.c))
 }

ocis/pkg/runtime/service/service.go

@@ -96,7 +96,7 @@ type Service struct {
 // calls are done explicitly to loadFromEnv().
 // Since this is the public constructor, options need to be added, at the moment only logging options
 // are supported in order to match the running OwnCloud services structured log.
-func NewService(options ...Option) (*Service, error) {
+func NewService(ctx context.Context, options ...Option) (*Service, error) {
 	opts := NewOptions()
 
 	for _, f := range options {
@@ -109,7 +109,7 @@ func NewService(options ...Option) (*Service, error) {
 		log.Level(opts.Config.Log.Level),
 	)
 
-	globalCtx, cancelGlobal := context.WithCancel(context.Background())
+	globalCtx, cancelGlobal := context.WithCancel(ctx)
 
 	s := &Service{
 		Services:   make([]serviceFuncMap, len(_waitFuncs)),
@@ -352,12 +352,12 @@ func NewService(options ...Option) (*Service, error) {
 
 // Start a rpc service. By default, the package scope Start will run all default services to provide with a working
 // oCIS instance.
-func Start(o ...Option) error {
+func Start(ctx context.Context, o ...Option) error {
 	// Start the runtime. Most likely this was called ONLY by the `ocis server` subcommand, but since we cannot protect
 	// from the caller, the previous statement holds truth.
 
 	// prepare a new rpc Service struct.
-	s, err := NewService(o...)
+	s, err := NewService(ctx, o...)
 	if err != nil {
 		return err
 	}

services/gateway/cmd/gateway/main.go

@@ -1,14 +1,19 @@
 package main
 
 import (
+	"context"
 	"os"
+	"os/signal"
+	"syscall"
 
 	"github.com/owncloud/ocis/v2/services/gateway/pkg/command"
 	"github.com/owncloud/ocis/v2/services/gateway/pkg/config/defaults"
 )
 
 func main() {
-	if err := command.Execute(defaults.DefaultConfig()); err != nil {
+	cfg := defaults.DefaultConfig()
+	cfg.Context, _ = signal.NotifyContext(context.Background(), syscall.SIGINT, syscall.SIGTERM)
+	if err := command.Execute(cfg); err != nil {
 		os.Exit(1)
 	}
 }

services/gateway/pkg/command/root.go

@@ -30,5 +30,5 @@ func Execute(cfg *config.Config) error {
 		Commands: GetCommands(cfg),
 	})
 
-	return app.Run(os.Args)
+	return app.RunContext(cfg.Context, os.Args)
 }

services/gateway/pkg/command/server.go

@@ -37,7 +37,7 @@ func Server(cfg *config.Config) *cli.Command {
 				return err
 			}
 			gr := run.Group{}
-			ctx, cancel := defineContext(cfg)
+			ctx, cancel := context.WithCancel(c.Context)
 
 			defer cancel()
 
@@ -51,7 +51,9 @@ func Server(cfg *config.Config) *cli.Command {
 					runtime.WithRegistry(reg),
 					runtime.WithTraceProvider(traceProvider),
 				)
-
+				logger.Info().
+					Str("server", cfg.Service.Name).
+					Msg("reva runtime exited")
 				return nil
 			}, func(err error) {
 				logger.Error().
@@ -60,7 +62,6 @@ func Server(cfg *config.Config) *cli.Command {
 					Msg("Shutting down server")
 
 				cancel()
-				os.Exit(1)
 			})
 
 			debugServer, err := debug.Server(
@@ -74,6 +75,9 @@ func Server(cfg *config.Config) *cli.Command {
 			}
 
 			gr.Add(debugServer.ListenAndServe, func(_ error) {
+				logger.Info().
+					Str("server", cfg.Service.Name).
+					Msg("Shutting down debug erver")
 				cancel()
 			})
 
@@ -86,14 +90,3 @@ func Server(cfg *config.Config) *cli.Command {
 		},
 	}
 }
-
-// defineContext sets the context for the service. If there is a context configured it will create a new child from it,
-// if not, it will create a root context that can be cancelled.
-func defineContext(cfg *config.Config) (context.Context, context.CancelFunc) {
-	return func() (context.Context, context.CancelFunc) {
-		if cfg.Context == nil {
-			return context.WithCancel(context.Background())
-		}
-		return context.WithCancel(cfg.Context)
-	}()
-}