Merge branch 'master' into config-doc-descriptions

services/store/pkg/config/config.go

@@ -0,0 +1,24 @@
+package config
+
+import (
+	"context"
+
+	"github.com/owncloud/ocis/v2/ocis-pkg/shared"
+)
+
+// Config combines all available configuration parts.
+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 GRPC `yaml:"grpc"`
+
+	Datapath string `yaml:"data_path" env:"STORE_DATA_PATH" desc:"Path for the store persistence directory."`
+
+	Context context.Context `yaml:"-"`
+}

services/store/pkg/config/debug.go

@@ -0,0 +1,9 @@
+package config
+
+// Debug defines the available debug configuration.
+type Debug struct {
+	Addr   string `yaml:"addr" env:"STORE_DEBUG_ADDR" desc:"Bind address of the debug server, where metrics, health, config and debug endpoints will be exposed."`
+	Token  string `yaml:"token" env:"STORE_DEBUG_TOKEN" desc:"Token to secure the metrics endpoint"`
+	Pprof  bool   `yaml:"pprof" env:"STORE_DEBUG_PPROF" desc:"Enables pprof, which can be used for profiling"`
+	Zpages bool   `yaml:"zpages" env:"STORE_DEBUG_ZPAGES" desc:"Enables zpages, which can be used for collecting and viewing in-memory traces."`
+}

services/store/pkg/config/defaults/defaultconfig.go

@@ -0,0 +1,63 @@
+package defaults
+
+import (
+	"path"
+
+	"github.com/owncloud/ocis/v2/ocis-pkg/config/defaults"
+	"github.com/owncloud/ocis/v2/services/store/pkg/config"
+)
+
+func FullDefaultConfig() *config.Config {
+	cfg := DefaultConfig()
+	EnsureDefaults(cfg)
+	Sanitize(cfg)
+	return cfg
+}
+
+func DefaultConfig() *config.Config {
+	return &config.Config{
+		Debug: config.Debug{
+			Addr:   "127.0.0.1:9464",
+			Token:  "",
+			Pprof:  false,
+			Zpages: false,
+		},
+		GRPC: config.GRPC{
+			Addr:      "127.0.0.1:9460",
+			Namespace: "com.owncloud.api",
+		},
+		Service: config.Service{
+			Name: "store",
+		},
+		Datapath: path.Join(defaults.BaseDataPath(), "store"),
+	}
+}
+
+func EnsureDefaults(cfg *config.Config) {
+	// provide with defaults for shared logging, since we need a valid destination address for BindEnv.
+	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 BindEnv.
+	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{}
+	}
+}
+
+func Sanitize(cfg *config.Config) {
+	// nothing to sanitize here atm
+}

services/store/pkg/config/grpc.go

@@ -0,0 +1,7 @@
+package config
+
+// GRPC defines the available grpc configuration.
+type GRPC struct {
+	Addr      string `yaml:"addr" env:"STORE_GRPC_ADDR" desc:"The bind address of the GRPC service."`
+	Namespace string `yaml:"-"`
+}

services/store/pkg/config/log.go

@@ -0,0 +1,9 @@
+package config
+
+// Log defines the available log configuration.
+type Log struct {
+	Level  string `mapstructure:"level" env:"OCIS_LOG_LEVEL;STORE_LOG_LEVEL" desc:"The log level. Valid values are: \"panic\", \"fatal\", \"error\", \"warn\", \"info\", \"debug\", \"trace\"."`
+	Pretty bool   `mapstructure:"pretty" env:"OCIS_LOG_PRETTY;STORE_LOG_PRETTY" desc:"Activates pretty log output."`
+	Color  bool   `mapstructure:"color" env:"OCIS_LOG_COLOR;STORE_LOG_COLOR" desc:"Activates colorized log output."`
+	File   string `mapstructure:"file" env:"OCIS_LOG_FILE;STORE_LOG_FILE" desc:"The path to the log file. Activates logging to this file if set."`
+}

services/store/pkg/config/parser/parse.go

@@ -0,0 +1,38 @@
+package parser
+
+import (
+	"errors"
+
+	ociscfg "github.com/owncloud/ocis/v2/ocis-pkg/config"
+	"github.com/owncloud/ocis/v2/services/store/pkg/config"
+	"github.com/owncloud/ocis/v2/services/store/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
+		}
+	}
+
+	// sanitize config
+	defaults.Sanitize(cfg)
+
+	return Validate(cfg)
+}
+
+func Validate(cfg *config.Config) error {
+	return nil
+}

services/store/pkg/config/service.go

@@ -0,0 +1,6 @@
+package config
+
+// Service defines the available service configuration.
+type Service struct {
+	Name string `yaml:"-"`
+}

services/store/pkg/config/tracing.go

@@ -0,0 +1,9 @@
+package config
+
+// Tracing defines the available tracing configuration.
+type Tracing struct {
+	Enabled   bool   `yaml:"enabled" env:"OCIS_TRACING_ENABLED;STORE_TRACING_ENABLED" desc:"Activates tracing."`
+	Type      string `yaml:"type" env:"OCIS_TRACING_TYPE;STORE_TRACING_TYPE" desc:"The type of tracing. Defaults to \"\", which is the same as \"jaeger\". Allowed tracing types are \"jaeger\" and \"\" as of now."`
+	Endpoint  string `yaml:"endpoint" env:"OCIS_TRACING_ENDPOINT;STORE_TRACING_ENDPOINT" desc:"The endpoint of the tracing agent."`
+	Collector string `yaml:"collector" env:"OCIS_TRACING_COLLECTOR;STORE_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."`
+}