feat: add REVA appauth as oCIS service

docs/services/general-info/port-ranges.md

@@ -60,7 +60,7 @@ We also suggest using the last port in your extensions' range as a debug/metrics
 | 9230-9234  | [nats]({{< ref "../nats/_index.md" >}})                                                |
 | 9235-9239  | [idm]({{< ref "../idm/_index.md" >}})                                                  |
 | 9240-9244  | [app-registry]({{< ref "../app-registry/_index.md" >}})                                |
-| 9245-9249  | FREE                                                                                   |
+| 9245-9249  | [auth-app]({{< ref "../auth-app/_index.md" >}})                                        |
 | 9250-9254  | [ocis server (runtime)](https://github.com/owncloud/ocis/tree/master/ocis/pkg/runtime) |
 | 9255-9259  | [postprocessing]({{< ref "../postprocessing/_index.md" >}})                            |
 | 9260-9264  | [clientlog]({{< ref "../clientlog/_index.md" >}})                                      |

ocis-pkg/config/config.go

@@ -7,6 +7,7 @@ import (
 	appProvider "github.com/owncloud/ocis/v2/services/app-provider/pkg/config"
 	appRegistry "github.com/owncloud/ocis/v2/services/app-registry/pkg/config"
 	audit "github.com/owncloud/ocis/v2/services/audit/pkg/config"
+	authapp "github.com/owncloud/ocis/v2/services/auth-app/pkg/config"
 	authbasic "github.com/owncloud/ocis/v2/services/auth-basic/pkg/config"
 	authbearer "github.com/owncloud/ocis/v2/services/auth-bearer/pkg/config"
 	authmachine "github.com/owncloud/ocis/v2/services/auth-machine/pkg/config"
@@ -86,6 +87,7 @@ type Config struct {
 	AppProvider       *appProvider.Config    `yaml:"app_provider"`
 	AppRegistry       *appRegistry.Config    `yaml:"app_registry"`
 	Audit             *audit.Config          `yaml:"audit"`
+	AuthApp           *authapp.Config        `yaml:"auth_app"`
 	AuthBasic         *authbasic.Config      `yaml:"auth_basic"`
 	AuthBearer        *authbearer.Config     `yaml:"auth_bearer"`
 	AuthMachine       *authmachine.Config    `yaml:"auth_machine"`

ocis-pkg/config/defaultconfig.go

@@ -6,6 +6,7 @@ import (
 	appProvider "github.com/owncloud/ocis/v2/services/app-provider/pkg/config/defaults"
 	appRegistry "github.com/owncloud/ocis/v2/services/app-registry/pkg/config/defaults"
 	audit "github.com/owncloud/ocis/v2/services/audit/pkg/config/defaults"
+	authapp "github.com/owncloud/ocis/v2/services/auth-app/pkg/config/defaults"
 	authbasic "github.com/owncloud/ocis/v2/services/auth-basic/pkg/config/defaults"
 	authbearer "github.com/owncloud/ocis/v2/services/auth-bearer/pkg/config/defaults"
 	authmachine "github.com/owncloud/ocis/v2/services/auth-machine/pkg/config/defaults"
@@ -58,6 +59,7 @@ func DefaultConfig() *Config {
 		AppProvider:       appProvider.DefaultConfig(),
 		AppRegistry:       appRegistry.DefaultConfig(),
 		Audit:             audit.DefaultConfig(),
+		AuthApp:           authapp.DefaultConfig(),
 		AuthBasic:         authbasic.DefaultConfig(),
 		AuthBearer:        authbearer.DefaultConfig(),
 		AuthMachine:       authmachine.DefaultConfig(),

ocis/pkg/command/services.go

@@ -13,6 +13,7 @@ import (
 	appprovider "github.com/owncloud/ocis/v2/services/app-provider/pkg/command"
 	appregistry "github.com/owncloud/ocis/v2/services/app-registry/pkg/command"
 	audit "github.com/owncloud/ocis/v2/services/audit/pkg/command"
+	authapp "github.com/owncloud/ocis/v2/services/auth-app/pkg/command"
 	authbasic "github.com/owncloud/ocis/v2/services/auth-basic/pkg/command"
 	authbearer "github.com/owncloud/ocis/v2/services/auth-bearer/pkg/command"
 	authmachine "github.com/owncloud/ocis/v2/services/auth-machine/pkg/command"
@@ -78,6 +79,11 @@ var svccmds = []register.Command{
 			cfg.Audit.Commons = cfg.Commons
 		})
 	},
+	func(cfg *config.Config) *cli.Command {
+		return ServiceCommand(cfg, cfg.AuthApp.Service.Name, authapp.GetCommands(cfg.AuthApp), func(_ *config.Config) {
+			cfg.AuthApp.Commons = cfg.Commons
+		})
+	},
 	func(cfg *config.Config) *cli.Command {
 		return ServiceCommand(cfg, cfg.AuthBasic.Service.Name, authbasic.GetCommands(cfg.AuthBasic), func(c *config.Config) {
 			cfg.AuthBasic.Commons = cfg.Commons
@@ -266,10 +272,10 @@ var svccmds = []register.Command{
 }
 
 // ServiceCommand is the entry point for the all service commands.
-func ServiceCommand(cfg *config.Config, servicename string, subcommands []*cli.Command, f func(*config.Config)) *cli.Command {
+func ServiceCommand(cfg *config.Config, serviceName string, subcommands []*cli.Command, f func(*config.Config)) *cli.Command {
 	return &cli.Command{
-		Name:     servicename,
-		Usage:    helper.SubcommandDescription(servicename),
+		Name:     serviceName,
+		Usage:    helper.SubcommandDescription(serviceName),
 		Category: "services",
 		Before: func(c *cli.Context) error {
 			configlog.Error(parser.ParseConfig(cfg, true))

ocis/pkg/runtime/service/service.go

@@ -3,6 +3,7 @@ package service
 import (
 	"context"
 	"fmt"
+	authapp "github.com/owncloud/ocis/v2/services/auth-app/pkg/command"
 	"net"
 	"net/http"
 	"net/rpc"
@@ -160,6 +161,11 @@ func NewService(options ...Option) (*Service, error) {
 		cfg.AppRegistry.Commons = cfg.Commons
 		return appRegistry.Execute(cfg.AppRegistry)
 	})
+	reg(3, opts.Config.AuthApp.Service.Name, func(ctx context.Context, cfg *ociscfg.Config) error {
+		cfg.AuthApp.Context = ctx
+		cfg.AuthApp.Commons = cfg.Commons
+		return authapp.Execute(cfg.AuthApp)
+	})
 	reg(3, opts.Config.AuthBasic.Service.Name, func(ctx context.Context, cfg *ociscfg.Config) error {
 		cfg.AuthBasic.Context = ctx
 		cfg.AuthBasic.Commons = cfg.Commons

services/auth-app/Makefile

@@ -0,0 +1,37 @@
+SHELL := bash
+NAME := auth-app
+
+include ../../.make/recursion.mk
+
+############ tooling ############
+ifneq (, $(shell command -v go 2> /dev/null)) # suppress `command not found warnings` for non go targets in CI
+include ../../.bingo/Variables.mk
+endif
+
+############ go tooling ############
+include ../../.make/go.mk
+
+############ release ############
+include ../../.make/release.mk
+
+############ docs generate ############
+include ../../.make/docs.mk
+
+.PHONY: docs-generate
+docs-generate: config-docs-generate
+
+############ generate ############
+include ../../.make/generate.mk
+
+.PHONY: ci-go-generate
+ci-go-generate: # CI runs ci-node-generate automatically before this target
+
+.PHONY: ci-node-generate
+ci-node-generate:
+
+############ licenses ############
+.PHONY: ci-node-check-licenses
+ci-node-check-licenses:
+
+.PHONY: ci-node-save-licenses
+ci-node-save-licenses:

services/auth-app/README.md

@@ -0,0 +1,3 @@
+# Auth-App
+
+TBD

services/auth-app/cmd/auth-app/main.go

@@ -0,0 +1,14 @@
+package main
+
+import (
+	"os"
+
+	"github.com/owncloud/ocis/v2/services/auth-app/pkg/command"
+	"github.com/owncloud/ocis/v2/services/auth-app/pkg/config/defaults"
+)
+
+func main() {
+	if err := command.Execute(defaults.DefaultConfig()); err != nil {
+		os.Exit(1)
+	}
+}

services/auth-app/pkg/command/health.go

@@ -0,0 +1,54 @@
+package command
+
+import (
+	"fmt"
+	"net/http"
+
+	"github.com/owncloud/ocis/v2/ocis-pkg/config/configlog"
+	"github.com/owncloud/ocis/v2/services/auth-app/pkg/config"
+	"github.com/owncloud/ocis/v2/services/auth-app/pkg/config/parser"
+	"github.com/owncloud/ocis/v2/services/auth-app/pkg/logging"
+	"github.com/urfave/cli/v2"
+)
+
+// Health is the entrypoint for the health command.
+func Health(cfg *config.Config) *cli.Command {
+	return &cli.Command{
+		Name:     "health",
+		Usage:    "check health status",
+		Category: "info",
+		Before: func(_ *cli.Context) error {
+			return configlog.ReturnError(parser.ParseConfig(cfg))
+		},
+		Action: func(_ *cli.Context) error {
+			logger := logging.Configure(cfg.Service.Name, cfg.Log)
+
+			resp, err := http.Get(
+				fmt.Sprintf(
+					"http://%s/healthz",
+					cfg.Debug.Addr,
+				),
+			)
+
+			if err != nil {
+				logger.Fatal().
+					Err(err).
+					Msg("Failed to request health check")
+			}
+
+			defer resp.Body.Close()
+
+			if resp.StatusCode != http.StatusOK {
+				logger.Fatal().
+					Int("code", resp.StatusCode).
+					Msg("Health seems to be in bad state")
+			}
+
+			logger.Debug().
+				Int("code", resp.StatusCode).
+				Msg("Health got a good state")
+
+			return nil
+		},
+	}
+}

services/auth-app/pkg/command/root.go

@@ -0,0 +1,34 @@
+package command
+
+import (
+	"os"
+
+	"github.com/owncloud/ocis/v2/ocis-pkg/clihelper"
+	"github.com/owncloud/ocis/v2/services/auth-app/pkg/config"
+	"github.com/urfave/cli/v2"
+)
+
+// GetCommands provides all commands for this service
+func GetCommands(cfg *config.Config) cli.Commands {
+	return []*cli.Command{
+		// start this service
+		Server(cfg),
+
+		// interaction with this service
+
+		// infos about this service
+		Health(cfg),
+		Version(cfg),
+	}
+}
+
+// Execute is the entry point for the ocis-auth-app command.
+func Execute(cfg *config.Config) error {
+	app := clihelper.DefaultApp(&cli.App{
+		Name:     "auth-app",
+		Usage:    "Provide app authentication for oCIS",
+		Commands: GetCommands(cfg),
+	})
+
+	return app.Run(os.Args)
+}

services/auth-app/pkg/command/server.go

@@ -0,0 +1,104 @@
+package command
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"path"
+
+	"github.com/cs3org/reva/v2/cmd/revad/runtime"
+	"github.com/gofrs/uuid"
+	"github.com/oklog/run"
+	"github.com/owncloud/ocis/v2/ocis-pkg/config/configlog"
+	"github.com/owncloud/ocis/v2/ocis-pkg/registry"
+	"github.com/owncloud/ocis/v2/ocis-pkg/sync"
+	"github.com/owncloud/ocis/v2/ocis-pkg/tracing"
+	"github.com/owncloud/ocis/v2/ocis-pkg/version"
+	"github.com/owncloud/ocis/v2/services/auth-app/pkg/config"
+	"github.com/owncloud/ocis/v2/services/auth-app/pkg/config/parser"
+	"github.com/owncloud/ocis/v2/services/auth-app/pkg/logging"
+	"github.com/owncloud/ocis/v2/services/auth-app/pkg/revaconfig"
+	"github.com/owncloud/ocis/v2/services/auth-app/pkg/server/debug"
+	"github.com/urfave/cli/v2"
+)
+
+// Server is the entry point for the server command.
+func Server(cfg *config.Config) *cli.Command {
+	return &cli.Command{
+		Name:     "server",
+		Usage:    fmt.Sprintf("start the %s service without runtime (unsupervised mode)", cfg.Service.Name),
+		Category: "server",
+		Before: func(_ *cli.Context) error {
+			return configlog.ReturnFatal(parser.ParseConfig(cfg))
+		},
+		Action: func(_ *cli.Context) error {
+			logger := logging.Configure(cfg.Service.Name, cfg.Log)
+			traceProvider, err := tracing.GetServiceTraceProvider(cfg.Tracing, cfg.Service.Name)
+			if err != nil {
+				return err
+			}
+			gr := run.Group{}
+			ctx, cancel := defineContext(cfg)
+
+			defer cancel()
+
+			gr.Add(func() error {
+				pidFile := path.Join(os.TempDir(), "revad-"+cfg.Service.Name+"-"+uuid.Must(uuid.NewV4()).String()+".pid")
+				rCfg := revaconfig.AuthAppConfigFromStruct(cfg)
+				reg := registry.GetRegistry()
+
+				runtime.RunWithOptions(rCfg, pidFile,
+					runtime.WithLogger(&logger.Logger),
+					runtime.WithRegistry(reg),
+					runtime.WithTraceProvider(traceProvider),
+				)
+
+				return nil
+			}, func(err error) {
+				logger.Error().
+					Str("server", cfg.Service.Name).
+					Err(err).
+					Msg("Shutting down server")
+
+				cancel()
+				os.Exit(1)
+			})
+
+			debugServer, err := debug.Server(
+				debug.Logger(logger),
+				debug.Context(ctx),
+				debug.Config(cfg),
+			)
+			if err != nil {
+				logger.Info().Err(err).Str("server", "debug").Msg("Failed to initialize server")
+				return err
+			}
+
+			gr.Add(debugServer.ListenAndServe, func(_ error) {
+				cancel()
+			})
+
+			if !cfg.Supervised {
+				sync.Trap(&gr, cancel)
+			}
+
+			grpcSvc := registry.BuildGRPCService(cfg.GRPC.Namespace+"."+cfg.Service.Name, uuid.Must(uuid.NewV4()).String(), cfg.GRPC.Addr, version.GetString())
+			if err := registry.RegisterService(ctx, grpcSvc, logger); err != nil {
+				logger.Fatal().Err(err).Msg("failed to register the grpc service")
+			}
+
+			return gr.Run()
+		},
+	}
+}
+
+// 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)
+	}()
+}

services/auth-app/pkg/command/version.go

@@ -0,0 +1,50 @@
+package command
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/owncloud/ocis/v2/ocis-pkg/registry"
+	"github.com/owncloud/ocis/v2/ocis-pkg/version"
+
+	tw "github.com/olekukonko/tablewriter"
+	"github.com/owncloud/ocis/v2/services/auth-app/pkg/config"
+	"github.com/urfave/cli/v2"
+)
+
+// Version prints the service versions of all running instances.
+func Version(cfg *config.Config) *cli.Command {
+	return &cli.Command{
+		Name:     "version",
+		Usage:    "print the version of this binary and the running service instances",
+		Category: "info",
+		Action: func(c *cli.Context) error {
+			fmt.Println("Version: " + version.GetString())
+			fmt.Printf("Compiled: %s\n", version.Compiled())
+			fmt.Println("")
+
+			reg := registry.GetRegistry()
+			services, err := reg.GetService(cfg.GRPC.Namespace + "." + cfg.Service.Name)
+			if err != nil {
+				fmt.Println(fmt.Errorf("could not get %s services from the registry: %v", cfg.Service.Name, err))
+				return err
+			}
+
+			if len(services) == 0 {
+				fmt.Println("No running " + cfg.Service.Name + " service found.")
+				return nil
+			}
+
+			table := tw.NewWriter(os.Stdout)
+			table.SetHeader([]string{"Version", "Address", "Id"})
+			table.SetAutoFormatHeaders(false)
+			for _, s := range services {
+				for _, n := range s.Nodes {
+					table.Append([]string{s.Version, n.Address, n.Id})
+				}
+			}
+			table.Render()
+			return nil
+		},
+	}
+}

services/auth-app/pkg/config/config.go

@@ -0,0 +1,55 @@
+package config
+
+import (
+	"context"
+
+	"github.com/owncloud/ocis/v2/ocis-pkg/shared"
+)
+
+// Config defines the root config structure
+type Config struct {
+	Commons *shared.Commons `yaml:"-"` // don't use this directly as configuration for a service
+	Service Service         `yaml:"-"`
+	Tracing *Tracing        `yaml:"tracing"`
+	Log     *Log            `yaml:"log"`
+	Debug   Debug           `yaml:"debug"`
+
+	GRPC GRPCConfig `yaml:"grpc"`
+
+	TokenManager *TokenManager `yaml:"token_manager"`
+	Reva         *shared.Reva  `yaml:"reva"`
+
+	SkipUserGroupsInToken bool `yaml:"skip_user_groups_in_token" env:"AUTH_APP_SKIP_USER_GROUPS_IN_TOKEN" desc:"Disables the encoding of the user's group memberships in the reva access token. This reduces the token size, especially when users are members of a large number of groups." introductionVersion:"pre5.0"`
+
+	Supervised bool            `yaml:"-"`
+	Context    context.Context `yaml:"-"`
+}
+
+// Log defines the loging configuration
+type Log struct {
+	Level  string `yaml:"level" env:"OCIS_LOG_LEVEL;AUTH_APP_LOG_LEVEL" desc:"The log level. Valid values are: 'panic', 'fatal', 'error', 'warn', 'info', 'debug', 'trace'." introductionVersion:"pre5.0"`
+	Pretty bool   `yaml:"pretty" env:"OCIS_LOG_PRETTY;AUTH_APP_LOG_PRETTY" desc:"Activates pretty log output." introductionVersion:"pre5.0"`
+	Color  bool   `yaml:"color" env:"OCIS_LOG_COLOR;AUTH_APP_LOG_COLOR" desc:"Activates colorized log output." introductionVersion:"pre5.0"`
+	File   string `yaml:"file" env:"OCIS_LOG_FILE;AUTH_APP_LOG_FILE" desc:"The path to the log file. Activates logging to this file if set." introductionVersion:"pre5.0"`
+}
+
+// Service defines the service configuration
+type Service struct {
+	Name string `yaml:"-"`
+}
+
+// Debug defines the debug configuration
+type Debug struct {
+	Addr   string `yaml:"addr" env:"AUTH_APP_DEBUG_ADDR" desc:"Bind address of the debug server, where metrics, health, config and debug endpoints will be exposed." introductionVersion:"pre5.0"`
+	Token  string `yaml:"token" env:"AUTH_APP_DEBUG_TOKEN" desc:"Token to secure the metrics endpoint." introductionVersion:"pre5.0"`
+	Pprof  bool   `yaml:"pprof" env:"AUTH_APP_DEBUG_PPROF" desc:"Enables pprof, which can be used for profiling." introductionVersion:"pre5.0"`
+	Zpages bool   `yaml:"zpages" env:"AUTH_APP_DEBUG_ZPAGES" desc:"Enables zpages, which can  be used for collecting and viewing traces in-memory." introductionVersion:"pre5.0"`
+}
+
+// GRPCConfig defines the GRPC configuration
+type GRPCConfig struct {
+	Addr      string                 `yaml:"addr" env:"AUTH_APP_GRPC_ADDR" desc:"The bind address of the GRPC service." introductionVersion:"pre5.0"`
+	TLS       *shared.GRPCServiceTLS `yaml:"tls"`
+	Namespace string                 `yaml:"-"`
+	Protocol  string                 `yaml:"protocol" env:"AUTH_APP_GRPC_PROTOCOL" desc:"The transport protocol of the GRPC service." introductionVersion:"pre5.0"`
+}

services/auth-app/pkg/config/defaults/defaultconfig.go

@@ -0,0 +1,83 @@
+package defaults
+
+import (
+	"github.com/owncloud/ocis/v2/ocis-pkg/shared"
+	"github.com/owncloud/ocis/v2/ocis-pkg/structs"
+	"github.com/owncloud/ocis/v2/services/auth-app/pkg/config"
+)
+
+// FullDefaultConfig returns a fully initialized default configuration
+func FullDefaultConfig() *config.Config {
+	cfg := DefaultConfig()
+	EnsureDefaults(cfg)
+	Sanitize(cfg)
+	return cfg
+}
+
+// DefaultConfig returns a basic default configuration
+func DefaultConfig() *config.Config {
+	return &config.Config{
+		Debug: config.Debug{
+			Addr:   "127.0.0.1:9197",
+			Token:  "",
+			Pprof:  false,
+			Zpages: false,
+		},
+		GRPC: config.GRPCConfig{
+			Addr:      "127.0.0.1:9195",
+			Namespace: "com.owncloud.api",
+			Protocol:  "tcp",
+		},
+		Service: config.Service{
+			Name: "auth-app",
+		},
+		Reva: shared.DefaultRevaConfig(),
+	}
+}
+
+// EnsureDefaults adds default values to the configuration if they are not set yet
+func EnsureDefaults(cfg *config.Config) {
+	// provide with defaults for shared logging, since we need a valid destination address for "envdecode".
+	if cfg.Log == nil && cfg.Commons != nil && cfg.Commons.Log != nil {
+		cfg.Log = &config.Log{
+			Level:  cfg.Commons.Log.Level,
+			Pretty: cfg.Commons.Log.Pretty,
+			Color:  cfg.Commons.Log.Color,
+			File:   cfg.Commons.Log.File,
+		}
+	} else if cfg.Log == nil {
+		cfg.Log = &config.Log{}
+	}
+	// provide with defaults for shared tracing, since we need a valid destination address for "envdecode".
+	if cfg.Tracing == nil && cfg.Commons != nil && cfg.Commons.Tracing != nil {
+		cfg.Tracing = &config.Tracing{
+			Enabled:   cfg.Commons.Tracing.Enabled,
+			Type:      cfg.Commons.Tracing.Type,
+			Endpoint:  cfg.Commons.Tracing.Endpoint,
+			Collector: cfg.Commons.Tracing.Collector,
+		}
+	} else if cfg.Tracing == nil {
+		cfg.Tracing = &config.Tracing{}
+	}
+
+	if cfg.Reva == nil && cfg.Commons != nil {
+		cfg.Reva = structs.CopyOrZeroValue(cfg.Commons.Reva)
+	}
+
+	if cfg.TokenManager == nil && cfg.Commons != nil && cfg.Commons.TokenManager != nil {
+		cfg.TokenManager = &config.TokenManager{
+			JWTSecret: cfg.Commons.TokenManager.JWTSecret,
+		}
+	} else if cfg.TokenManager == nil {
+		cfg.TokenManager = &config.TokenManager{}
+	}
+
+	if cfg.GRPC.TLS == nil && cfg.Commons != nil {
+		cfg.GRPC.TLS = structs.CopyOrZeroValue(cfg.Commons.GRPCServiceTLS)
+	}
+}
+
+// Sanitize sanitized the configuration
+func Sanitize(_ *config.Config) {
+	// nothing to sanitize here atm
+}

services/auth-app/pkg/config/parser/parse.go

@@ -0,0 +1,42 @@
+package parser
+
+import (
+	"errors"
+
+	ociscfg "github.com/owncloud/ocis/v2/ocis-pkg/config"
+	"github.com/owncloud/ocis/v2/ocis-pkg/shared"
+	"github.com/owncloud/ocis/v2/services/auth-app/pkg/config"
+	"github.com/owncloud/ocis/v2/services/auth-app/pkg/config/defaults"
+
+	"github.com/owncloud/ocis/v2/ocis-pkg/config/envdecode"
+)
+
+// ParseConfig loads configuration from known paths.
+func ParseConfig(cfg *config.Config) error {
+	err := ociscfg.BindSourcesToStructs(cfg.Service.Name, cfg)
+	if err != nil {
+		return err
+	}
+
+	defaults.EnsureDefaults(cfg)
+
+	// load all env variables relevant to the config in the current context.
+	if err := envdecode.Decode(cfg); err != nil {
+		// no environment variable set for this config is an expected "error"
+		if !errors.Is(err, envdecode.ErrNoTargetFieldsAreSet) {
+			return err
+		}
+	}
+
+	defaults.Sanitize(cfg)
+
+	return Validate(cfg)
+}
+
+func Validate(cfg *config.Config) error {
+	if cfg.TokenManager.JWTSecret == "" {
+		return shared.MissingJWTTokenError(cfg.Service.Name)
+	}
+
+	return nil
+}

services/auth-app/pkg/config/reva.go

@@ -0,0 +1,6 @@
+package config
+
+// TokenManager is the config for using the reva token manager
+type TokenManager struct {
+	JWTSecret string `yaml:"jwt_secret" env:"OCIS_JWT_SECRET;AUTH_APP_JWT_SECRET" desc:"The secret to mint and validate jwt tokens." introductionVersion:"pre5.0"`
+}

services/auth-app/pkg/config/tracing.go

@@ -0,0 +1,21 @@
+package config
+
+import "github.com/owncloud/ocis/v2/ocis-pkg/tracing"
+
+// Tracing defines the tracing configuration.
+type Tracing struct {
+	Enabled   bool   `yaml:"enabled" env:"OCIS_TRACING_ENABLED;AUTH_APP_TRACING_ENABLED" desc:"Activates tracing." introductionVersion:"pre5.0"`
+	Type      string `yaml:"type" env:"OCIS_TRACING_TYPE;AUTH_APP_TRACING_TYPE" desc:"The type of tracing. Defaults to '', which is the same as 'jaeger'. Allowed tracing types are 'jaeger' and '' as of now." introductionVersion:"pre5.0"`
+	Endpoint  string `yaml:"endpoint" env:"OCIS_TRACING_ENDPOINT;AUTH_APP_TRACING_ENDPOINT" desc:"The endpoint of the tracing agent." introductionVersion:"pre5.0"`
+	Collector string `yaml:"collector" env:"OCIS_TRACING_COLLECTOR;AUTH_APP_TRACING_COLLECTOR" desc:"The HTTP endpoint for sending spans directly to a collector, i.e. http://jaeger-collector:14268/api/traces. Only used if the tracing endpoint is unset." introductionVersion:"pre5.0"`
+}
+
+// Convert Tracing to the tracing package's Config struct.
+func (t Tracing) Convert() tracing.Config {
+	return tracing.Config{
+		Enabled:   t.Enabled,
+		Type:      t.Type,
+		Endpoint:  t.Endpoint,
+		Collector: t.Collector,
+	}
+}

services/auth-app/pkg/logging/logging.go

@@ -0,0 +1,17 @@
+package logging
+
+import (
+	"github.com/owncloud/ocis/v2/ocis-pkg/log"
+	"github.com/owncloud/ocis/v2/services/auth-app/pkg/config"
+)
+
+// Configure initializes a service-specific logger instance.
+func Configure(name string, cfg *config.Log) log.Logger {
+	return log.NewLogger(
+		log.Name(name),
+		log.Level(cfg.Level),
+		log.Pretty(cfg.Pretty),
+		log.Color(cfg.Color),
+		log.File(cfg.File),
+	)
+}

services/auth-app/pkg/revaconfig/config.go

@@ -0,0 +1,43 @@
+package revaconfig
+
+import (
+	"github.com/owncloud/ocis/v2/services/auth-app/pkg/config"
+)
+
+// AuthAppConfigFromStruct will adapt an oCIS config struct into a reva mapstructure to start a reva service.
+func AuthAppConfigFromStruct(cfg *config.Config) map[string]interface{} {
+	rcfg := map[string]interface{}{
+		"shared": map[string]interface{}{
+			"jwt_secret":                cfg.TokenManager.JWTSecret,
+			"gatewaysvc":                cfg.Reva.Address,
+			"skip_user_groups_in_token": cfg.SkipUserGroupsInToken,
+			"grpc_client_options":       cfg.Reva.GetGRPCClientConfig(),
+		},
+		"grpc": map[string]interface{}{
+			"network": cfg.GRPC.Protocol,
+			"address": cfg.GRPC.Addr,
+			"tls_settings": map[string]interface{}{
+				"enabled":     cfg.GRPC.TLS.Enabled,
+				"certificate": cfg.GRPC.TLS.Cert,
+				"key":         cfg.GRPC.TLS.Key,
+			},
+			"services": map[string]interface{}{
+				"authprovider": map[string]interface{}{
+					"auth_manager": "appauth",
+					"auth_managers": map[string]interface{}{
+						"appauth": map[string]interface{}{
+							"gateway_addr": cfg.Reva.Address,
+						},
+					},
+				},
+			},
+			"interceptors": map[string]interface{}{
+				"prometheus": map[string]interface{}{
+					"namespace": "ocis",
+					"subsystem": "auth_app",
+				},
+			},
+		},
+	}
+	return rcfg
+}

services/auth-app/pkg/server/debug/option.go

@@ -0,0 +1,50 @@
+package debug
+
+import (
+	"context"
+
+	"github.com/owncloud/ocis/v2/ocis-pkg/log"
+	"github.com/owncloud/ocis/v2/services/auth-app/pkg/config"
+)
+
+// Option defines a single option function.
+type Option func(o *Options)
+
+// Options defines the available options for this package.
+type Options struct {
+	Logger  log.Logger
+	Context context.Context
+	Config  *config.Config
+}
+
+// newOptions initializes the available default options.
+func newOptions(opts ...Option) Options {
+	opt := Options{}
+
+	for _, o := range opts {
+		o(&opt)
+	}
+
+	return opt
+}
+
+// Logger provides a function to set the logger option.
+func Logger(val log.Logger) Option {
+	return func(o *Options) {
+		o.Logger = val
+	}
+}
+
+// Context provides a function to set the context option.
+func Context(val context.Context) Option {
+	return func(o *Options) {
+		o.Context = val
+	}
+}
+
+// Config provides a function to set the config option.
+func Config(val *config.Config) Option {
+	return func(o *Options) {
+		o.Config = val
+	}
+}

services/auth-app/pkg/server/debug/server.go

@@ -0,0 +1,63 @@
+package debug
+
+import (
+	"io"
+	"net/http"
+
+	"github.com/owncloud/ocis/v2/ocis-pkg/service/debug"
+	"github.com/owncloud/ocis/v2/ocis-pkg/version"
+	"github.com/owncloud/ocis/v2/services/auth-app/pkg/config"
+)
+
+// Server initializes the debug service and server.
+func Server(opts ...Option) (*http.Server, error) {
+	options := newOptions(opts...)
+
+	return debug.NewService(
+		debug.Logger(options.Logger),
+		debug.Name(options.Config.Service.Name),
+		debug.Version(version.GetString()),
+		debug.Address(options.Config.Debug.Addr),
+		debug.Token(options.Config.Debug.Token),
+		debug.Pprof(options.Config.Debug.Pprof),
+		debug.Zpages(options.Config.Debug.Zpages),
+		debug.Health(health(options.Config)),
+		debug.Ready(ready(options.Config)),
+		//debug.CorsAllowedOrigins(options.Config.HTTP.CORS.AllowedOrigins),
+		//debug.CorsAllowedMethods(options.Config.HTTP.CORS.AllowedMethods),
+		//debug.CorsAllowedHeaders(options.Config.HTTP.CORS.AllowedHeaders),
+		//debug.CorsAllowCredentials(options.Config.HTTP.CORS.AllowCredentials),
+	), nil
+}
+
+// health implements the health check.
+func health(_ *config.Config) func(http.ResponseWriter, *http.Request) {
+	return func(w http.ResponseWriter, _ *http.Request) {
+		w.Header().Set("Content-Type", "text/plain")
+		w.WriteHeader(http.StatusOK)
+
+		// TODO: check if services are up and running
+
+		_, err := io.WriteString(w, http.StatusText(http.StatusOK))
+		// io.WriteString should not fail but if it does, we want to know.
+		if err != nil {
+			panic(err)
+		}
+	}
+}
+
+// ready implements the ready check.
+func ready(_ *config.Config) func(http.ResponseWriter, *http.Request) {
+	return func(w http.ResponseWriter, _ *http.Request) {
+		w.Header().Set("Content-Type", "text/plain")
+		w.WriteHeader(http.StatusOK)
+
+		// TODO: check if services are up and running
+
+		_, err := io.WriteString(w, http.StatusText(http.StatusOK))
+		// io.WriteString should not fail but if it does, we want to know.
+		if err != nil {
+			panic(err)
+		}
+	}
+}