add description tags to thumbnails config

changelog/unreleased/thumbnails-env-doc.md

@@ -0,0 +1,5 @@
+Enhancement: Add description tags to the thumbnails config structs
+
+Added description tags to the config structs in the thumbnails service so they will be included in the config documentation.
+
+https://github.com/owncloud/ocis/pull/3752

extensions/thumbnails/pkg/config/config.go

@@ -26,22 +26,17 @@ type Config struct {
 
 // FileSystemStorage defines the available filesystem storage configuration.
 type FileSystemStorage struct {
-	RootDirectory string `yaml:"root_directory" env:"THUMBNAILS_FILESYSTEMSTORAGE_ROOT"`
-}
-
-// FileSystemSource defines the available filesystem source configuration.
-type FileSystemSource struct {
-	BasePath string `yaml:"base_path"`
+	RootDirectory string `yaml:"root_directory" env:"THUMBNAILS_FILESYSTEMSTORAGE_ROOT" desc:"The directory where the filesystem storage will store the thumbnails."`
 }
 
 // Thumbnail defines the available thumbnail related configuration.
 type Thumbnail struct {
-	Resolutions         []string          `yaml:"resolutions"`
+	Resolutions         []string          `yaml:"resolutions" env:"THUMBNAILS_RESOLUTIONS" desc:"The supported target resolutions in the format WidthxHeight e.g. 32x32. You can provide multiple resolutions seperated by a comma."`
 	FileSystemStorage   FileSystemStorage `yaml:"filesystem_storage"`
-	WebdavAllowInsecure bool              `yaml:"webdav_allow_insecure" env:"OCIS_INSECURE;THUMBNAILS_WEBDAVSOURCE_INSECURE"`
-	CS3AllowInsecure    bool              `yaml:"cs3_allow_insecure" env:"OCIS_INSECURE;THUMBNAILS_CS3SOURCE_INSECURE"`
-	RevaGateway         string            `yaml:"reva_gateway" env:"REVA_GATEWAY"` //TODO: use REVA config
-	FontMapFile         string            `yaml:"font_map_file" env:"THUMBNAILS_TXT_FONTMAP_FILE"`
-	TransferSecret      string            `yaml:"transfer_secret" env:"STORAGE_TRANSFER_TOKEN;THUMBNAILS_TRANSFER_TOKEN"`
-	DataEndpoint        string            `yaml:"data_endpoint" env:"THUMBNAILS_DATA_ENDPOINT"`
+	WebdavAllowInsecure bool              `yaml:"webdav_allow_insecure" env:"OCIS_INSECURE;THUMBNAILS_WEBDAVSOURCE_INSECURE" desc:"Ignore untrusted SSL certificates when connecting to the webdav source."`
+	CS3AllowInsecure    bool              `yaml:"cs3_allow_insecure" env:"OCIS_INSECURE;THUMBNAILS_CS3SOURCE_INSECURE" desc:"Ignore untrusted SSL certificates when connecting to the CS3 source."`
+	RevaGateway         string            `yaml:"reva_gateway" env:"REVA_GATEWAY" desc:"The CS3 gateway endpoint"` //TODO: use REVA config
+	FontMapFile         string            `yaml:"font_map_file" env:"THUMBNAILS_TXT_FONTMAP_FILE" desc:"The path to a font file for txt thumbnails."`
+	TransferSecret      string            `yaml:"transfer_secret" env:"THUMBNAILS_TRANSFER_TOKEN" desc:"The secret to sign JWT to download the actual thumbnail file."`
+	DataEndpoint        string            `yaml:"data_endpoint" env:"THUMBNAILS_DATA_ENDPOINT" desc:"The HTTP endpoint where the actual thumbnail file can be downloaded."`
 }

extensions/thumbnails/pkg/config/debug.go

@@ -2,7 +2,7 @@ package config
 
 // Debug defines the available debug configuration.
 type Debug struct {
-	Addr   string `yaml:"addr" env:"THUMBNAILS_DEBUG_ADDR"`
+	Addr   string `yaml:"addr" env:"THUMBNAILS_DEBUG_ADDR" desc:"The debug address"`
 	Token  string `yaml:"token" env:"THUMBNAILS_DEBUG_TOKEN"`
 	Pprof  bool   `yaml:"pprof" env:"THUMBNAILS_DEBUG_PPROF"`
 	Zpages bool   `yaml:"zpages" env:"THUMBNAILS_DEBUG_ZPAGES"`

extensions/thumbnails/pkg/config/defaults/defaultconfig.go

@@ -2,6 +2,7 @@ package defaults
 
 import (
 	"path"
+	"strings"
 
 	"github.com/owncloud/ocis/v2/extensions/thumbnails/pkg/config"
 	"github.com/owncloud/ocis/v2/ocis-pkg/config/defaults"
@@ -70,12 +71,11 @@ func EnsureDefaults(cfg *config.Config) {
 	} else if cfg.Tracing == nil {
 		cfg.Tracing = &config.Tracing{}
 	}
-
-	if cfg.Thumbnail.TransferSecret == "" && cfg.Commons != nil && cfg.Commons.TransferSecret != "" {
-		cfg.Thumbnail.TransferSecret = cfg.Commons.TransferSecret
-	}
 }
 
 func Sanitize(cfg *config.Config) {
 	// nothing to sanitize here atm
+	if len(cfg.Thumbnail.Resolutions) == 1 && strings.Contains(cfg.Thumbnail.Resolutions[0], ",") {
+		cfg.Thumbnail.Resolutions = strings.Split(cfg.Thumbnail.Resolutions[0], ",")
+	}
 }

extensions/thumbnails/pkg/config/grpc.go

@@ -2,6 +2,6 @@ package config
 
 // GRPC defines the available grpc configuration.
 type GRPC struct {
-	Addr      string `yaml:"addr" env:"THUMBNAILS_GRPC_ADDR"`
+	Addr      string `yaml:"addr" env:"THUMBNAILS_GRPC_ADDR" desc:"The address off the grpc service."`
 	Namespace string `yaml:"-"`
 }

extensions/thumbnails/pkg/config/http.go

@@ -2,7 +2,7 @@ package config
 
 // HTTP defines the available http configuration.
 type HTTP struct {
-	Addr      string `yaml:"addr" env:"THUMBNAILS_HTTP_ADDR"`
-	Root      string `yaml:"root" env:"THUMBNAILS_HTTP_ROOT"`
+	Addr      string `yaml:"addr" env:"THUMBNAILS_HTTP_ADDR" desc:"The address of the HTTP service."`
+	Root      string `yaml:"root" env:"THUMBNAILS_HTTP_ROOT" desc:"The root path of the HTTP service."`
 	Namespace string `yaml:"-"`
 }

extensions/thumbnails/pkg/config/log.go

@@ -2,8 +2,8 @@ package config
 
 // Log defines the available log configuration.
 type Log struct {
-	Level  string `mapstructure:"level" env:"OCIS_LOG_LEVEL;THUMBNAILS_LOG_LEVEL"`
-	Pretty bool   `mapstructure:"pretty" env:"OCIS_LOG_PRETTY;THUMBNAILS_LOG_PRETTY"`
-	Color  bool   `mapstructure:"color" env:"OCIS_LOG_COLOR;THUMBNAILS_LOG_COLOR"`
-	File   string `mapstructure:"file" env:"OCIS_LOG_FILE;THUMBNAILS_LOG_FILE"`
+	Level  string `mapstructure:"level" env:"OCIS_LOG_LEVEL;THUMBNAILS_LOG_LEVEL" desc:"The log level."`
+	Pretty bool   `mapstructure:"pretty" env:"OCIS_LOG_PRETTY;THUMBNAILS_LOG_PRETTY" desc:"Enable pretty logs."`
+	Color  bool   `mapstructure:"color" env:"OCIS_LOG_COLOR;THUMBNAILS_LOG_COLOR" desc:"Enable colored logs."`
+	File   string `mapstructure:"file" env:"OCIS_LOG_FILE;THUMBNAILS_LOG_FILE" desc:"The path to the log file when logging to file."`
 }

extensions/thumbnails/pkg/config/parser/parse.go

@@ -6,7 +6,6 @@ import (
 	"github.com/owncloud/ocis/v2/extensions/thumbnails/pkg/config"
 	"github.com/owncloud/ocis/v2/extensions/thumbnails/pkg/config/defaults"
 	ociscfg "github.com/owncloud/ocis/v2/ocis-pkg/config"
-	"github.com/owncloud/ocis/v2/ocis-pkg/shared"
 
 	"github.com/owncloud/ocis/v2/ocis-pkg/config/envdecode"
 )
@@ -35,9 +34,5 @@ func ParseConfig(cfg *config.Config) error {
 }
 
 func Validate(cfg *config.Config) error {
-	if cfg.Thumbnail.TransferSecret == "" {
-		return shared.MissingRevaTransferSecretError(cfg.Service.Name)
-	}
-
 	return nil
 }

extensions/thumbnails/pkg/config/tracing.go

@@ -2,8 +2,8 @@ package config
 
 // Tracing defines the available tracing configuration.
 type Tracing struct {
-	Enabled   bool   `yaml:"enabled" env:"OCIS_TRACING_ENABLED;THUMBNAILS_TRACING_ENABLED"`
-	Type      string `yaml:"type" env:"OCIS_TRACING_TYPE;THUMBNAILS_TRACING_TYPE"`
-	Endpoint  string `yaml:"endpoint" env:"OCIS_TRACING_ENDPOINT;THUMBNAILS_TRACING_ENDPOINT"`
-	Collector string `yaml:"collector" env:"OCIS_TRACING_COLLECTOR;THUMBNAILS_TRACING_COLLECTOR"`
+	Enabled   bool   `yaml:"enabled" env:"OCIS_TRACING_ENABLED;THUMBNAILS_TRACING_ENABLED" desc:"Enable tracing."`
+	Type      string `yaml:"type" env:"OCIS_TRACING_TYPE;THUMBNAILS_TRACING_TYPE" desc:"The tracing type."`
+	Endpoint  string `yaml:"endpoint" env:"OCIS_TRACING_ENDPOINT;THUMBNAILS_TRACING_ENDPOINT" desc:"The endpoint of the tracing service."`
+	Collector string `yaml:"collector" env:"OCIS_TRACING_COLLECTOR;THUMBNAILS_TRACING_COLLECTOR" desc:"The tracing collector."`
 }

ocis/pkg/init/init.go

@@ -14,8 +14,10 @@ import (
 	"gopkg.in/yaml.v2"
 )
 
-const configFilename string = "ocis.yaml" // TODO: use also a constant for reading this file
-const passwordLength int = 32
+const (
+	configFilename = "ocis.yaml" // TODO: use also a constant for reading this file
+	passwordLength = 32
+)
 
 type TokenManager struct {
 	JWTSecret string `yaml:"jwt_secret"`
@@ -75,11 +77,12 @@ type UsersAndGroupsExtension struct {
 }
 
 type ThumbnailSettings struct {
-	WebdavAllowInsecure bool `yaml:"webdav_allow_insecure"`
-	Cs3AllowInsecure    bool `yaml:"cs3_allow_insecure"`
+	TransferSecret      string `yaml:"transfer_secret"`
+	WebdavAllowInsecure bool   `yaml:"webdav_allow_insecure"`
+	Cs3AllowInsecure    bool   `yaml:"cs3_allow_insecure"`
 }
 
-type ThumbNailExtension struct {
+type ThumbnailExtension struct {
 	Thumbnail ThumbnailSettings
 }
 
@@ -114,7 +117,7 @@ type OcisConfig struct {
 	StorageSystem     DataProviderInsecureSettings `yaml:"storage_system"`
 	StorageUsers      DataProviderInsecureSettings `yaml:"storage_users"`
 	Ocdav             InsecureExtension
-	Thumbnails        ThumbNailExtension
+	Thumbnails        ThumbnailExtension
 }
 
 func checkConfigPath(configPath string) error {
@@ -200,7 +203,11 @@ func CreateConfig(insecure, forceOverwrite bool, configPath, adminPassword strin
 	}
 	revaTransferSecret, err := generators.GenerateRandomPassword(passwordLength)
 	if err != nil {
-		return fmt.Errorf("could not generate random password for machineauthsecret: %s", err)
+		return fmt.Errorf("could not generate random password for revaTransferSecret: %s", err)
+	}
+	thumbnailsTransferSecret, err := generators.GenerateRandomPassword(passwordLength)
+	if err != nil {
+		return fmt.Errorf("could not generate random password for thumbnailsTransferSecret: %s", err)
 	}
 
 	cfg := OcisConfig{
@@ -253,6 +260,11 @@ func CreateConfig(insecure, forceOverwrite bool, configPath, adminPassword strin
 				},
 			},
 		},
+		Thumbnails: ThumbnailExtension{
+			Thumbnail: ThumbnailSettings{
+				TransferSecret: thumbnailsTransferSecret,
+			},
+		},
 	}
 
 	if insecure {
@@ -283,12 +295,9 @@ func CreateConfig(insecure, forceOverwrite bool, configPath, adminPassword strin
 		cfg.StorageUsers = DataProviderInsecureSettings{
 			Data_provider_insecure: true,
 		}
-		cfg.Thumbnails = ThumbNailExtension{
-			Thumbnail: ThumbnailSettings{
-				WebdavAllowInsecure: true,
-				Cs3AllowInsecure:    true,
-			},
-		}
+
+		cfg.Thumbnails.Thumbnail.WebdavAllowInsecure = true
+		cfg.Thumbnails.Thumbnail.Cs3AllowInsecure = true
 	}
 
 	yamlOutput, err := yaml.Marshal(cfg)