Make extensions handle their config

docs/getting-started.md

@@ -78,7 +78,21 @@ To the list of available services.
 
 ## Configuration
 
-We provide overall three different variants of configuration. The variant based on environment variables and commandline flags are split up into global values and command-specific values.
+oCIS Single Binary is not responsible for configuring extensions. Instead, each extension could either be configured by environment variables, cli flags or config files.
+
+### Configuration using config files
+
+Out of the box extensions will attempt to read configuration details from:
+
+```console
+/etc/ocis
+$HOME/.ocis
+./config
+```
+
+For this configuration to be picked up, have a look at your extension `root` command and look for which default config name it has assigned. *i.e: ocis-proxy reads `ocis.json | yaml | toml ...`*.
+
+> Important note: As per the time of this writing, Viper does not play nice with urfave/cli flags, this results in values defined on config files taking precedence over cli flags. This behavior is different with environment variables, these will ALWAYS override any value, as they are the most explicit.
 
 ### Envrionment variables
 

go.mod

@@ -12,20 +12,20 @@ require (
 	github.com/micro/go-micro/v2 v2.0.1-0.20200212105717-d76baf59de2e
 	github.com/micro/micro/v2 v2.0.1-0.20200210100719-f38a1d8d5348
 	github.com/openzipkin/zipkin-go v0.2.2
+	github.com/owncloud/ocis-devldap v0.0.0-20200311185721-105f9cbe4ce4 // indirect
 	github.com/owncloud/ocis-glauth v0.2.0
 	github.com/owncloud/ocis-graph v0.0.0-20200217115956-172417259283
 	github.com/owncloud/ocis-graph-explorer v0.0.0-20200210111049-017eeb40dc0c
 	github.com/owncloud/ocis-hello v0.1.0-alpha1.0.20200207094758-c866cafca7e5
 	github.com/owncloud/ocis-konnectd v0.0.0-20200303180152-937016f63393
 	github.com/owncloud/ocis-ocs v0.0.0-20200207130609-800a64d45fac
 	github.com/owncloud/ocis-phoenix v0.1.1-0.20200213204418-06f50c42c225
-	github.com/owncloud/ocis-pkg/v2 v2.0.2
+	github.com/owncloud/ocis-pkg/v2 v2.0.3-0.20200309150924-5c659fd4b0ad
 	github.com/owncloud/ocis-proxy v0.0.0-20200310100127-5a38d286e52c
 	github.com/owncloud/ocis-reva v0.0.0-20200213202552-584d47daa8bc
 	github.com/owncloud/ocis-webdav v0.0.0-20200210113150-6c4d498c38b0
-	github.com/spf13/viper v1.6.2
-	go.opencensus.io v0.22.3
-	golang.org/x/crypto v0.0.0-20200221231518-2aa609cf4a9d // indirect
+	go.opencensus.io v0.22.2
+	golang.org/x/crypto v0.0.0-20200311171314-f7b00557c8c4 // indirect
 	golang.org/x/net v0.0.0-20200226121028-0de0cce0169b // indirect
 	golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae // indirect
 	stash.kopano.io/kc/konnect v0.29.0 // indirect

pkg/command/graph-explorer.go

@@ -18,13 +18,14 @@ func GraphExplorerCommand(cfg *config.Config) *cli.Command {
 		Usage:    "Start graph explorer",
 		Category: "Extensions",
 		Flags:    flagset.ServerWithConfig(cfg.GraphExplorer),
-		Action: func(c *cli.Context) error {
-			scfg := configureGraphExplorer(cfg)
+		Action: func(ctx *cli.Context) error {
+			graphExplorerCommand := command.Server(configureGraphExplorer(cfg))
 
-			return cli.HandleAction(
-				command.Server(scfg).Action,
-				c,
-			)
+			if err := graphExplorerCommand.Before(ctx); err != nil {
+				return err
+			}
+
+			return cli.HandleAction(graphExplorerCommand.Action, ctx)
 		},
 	}
 }
@@ -33,9 +34,6 @@ func configureGraphExplorer(cfg *config.Config) *svcconfig.Config {
 	cfg.GraphExplorer.Log.Level = cfg.Log.Level
 	cfg.GraphExplorer.Log.Pretty = cfg.Log.Pretty
 	cfg.GraphExplorer.Log.Color = cfg.Log.Color
-	cfg.GraphExplorer.Tracing.Enabled = false
-	cfg.GraphExplorer.HTTP.Addr = "localhost:9135"
-	cfg.GraphExplorer.HTTP.Root = "/"
 
 	return cfg.GraphExplorer
 }

pkg/command/graph.go

@@ -18,13 +18,14 @@ func GraphCommand(cfg *config.Config) *cli.Command {
 		Usage:    "Start graph server",
 		Category: "Extensions",
 		Flags:    flagset.ServerWithConfig(cfg.Graph),
-		Action: func(c *cli.Context) error {
-			scfg := configureGraph(cfg)
+		Action: func(ctx *cli.Context) error {
+			graphCommand := command.Server(configureGraph(cfg))
 
-			return cli.HandleAction(
-				command.Server(scfg).Action,
-				c,
-			)
+			if err := graphCommand.Before(ctx); err != nil {
+				return err
+			}
+
+			return cli.HandleAction(graphCommand.Action, ctx)
 		},
 	}
 }
@@ -33,9 +34,6 @@ func configureGraph(cfg *config.Config) *svcconfig.Config {
 	cfg.Graph.Log.Level = cfg.Log.Level
 	cfg.Graph.Log.Pretty = cfg.Log.Pretty
 	cfg.Graph.Log.Color = cfg.Log.Color
-	cfg.Graph.Tracing.Enabled = false
-	cfg.Graph.HTTP.Addr = "localhost:9120"
-	cfg.Graph.HTTP.Root = "/"
 
 	return cfg.Graph
 }

pkg/command/konnectd.go

@@ -1,4 +1,3 @@
-
 package command
 
 import (
@@ -18,14 +17,13 @@ func KonnectdCommand(cfg *config.Config) *cli.Command {
 		Category: "Extensions",
 		Flags:    flagset.ServerWithConfig(cfg.Konnectd),
 		Action: func(c *cli.Context) error {
-			serverConfig := configureKonnectd(cfg)
-			serverCommand := command.Server(serverConfig)
+			konnectdCommand := command.Server(configureKonnectd(cfg))
 
-			if err := serverCommand.Before(c); err != nil {
+			if err := konnectdCommand.Before(c); err != nil {
 				return err
 			}
 
-			return cli.HandleAction(serverCommand.Action, c)
+			return cli.HandleAction(konnectdCommand.Action, c)
 		},
 	}
 }
@@ -34,9 +32,6 @@ func configureKonnectd(cfg *config.Config) *svcconfig.Config {
 	cfg.Konnectd.Log.Level = cfg.Log.Level
 	cfg.Konnectd.Log.Pretty = cfg.Log.Pretty
 	cfg.Konnectd.Log.Color = cfg.Log.Color
-	cfg.Konnectd.Tracing.Enabled = false
-	cfg.Konnectd.HTTP.Addr = "localhost:9130"
-	cfg.Konnectd.HTTP.Root = "/"
 
 	return cfg.Konnectd
 }

pkg/command/ocs.go

@@ -18,13 +18,14 @@ func OCSCommand(cfg *config.Config) *cli.Command {
 		Usage:    "Start ocs server",
 		Category: "Extensions",
 		Flags:    flagset.ServerWithConfig(cfg.OCS),
-		Action: func(c *cli.Context) error {
-			scfg := configureOCS(cfg)
+		Action: func(ctx *cli.Context) error {
+			ocsCommand := command.Server(configureOCS(cfg))
 
-			return cli.HandleAction(
-				command.Server(scfg).Action,
-				c,
-			)
+			if err := ocsCommand.Before(ctx); err != nil {
+				return err
+			}
+
+			return cli.HandleAction(ocsCommand.Action, ctx)
 		},
 	}
 }
@@ -33,9 +34,6 @@ func configureOCS(cfg *config.Config) *svcconfig.Config {
 	cfg.OCS.Log.Level = cfg.Log.Level
 	cfg.OCS.Log.Pretty = cfg.Log.Pretty
 	cfg.OCS.Log.Color = cfg.Log.Color
-	cfg.OCS.Tracing.Enabled = false
-	cfg.OCS.HTTP.Addr = "localhost:9110"
-	cfg.OCS.HTTP.Root = "/"
 
 	return cfg.OCS
 }

pkg/command/phoenix.go

@@ -23,17 +23,16 @@ func PhoenixCommand(cfg *config.Config) *cli.Command {
 			}
 
 			cfg.Phoenix.Phoenix.Config.Apps = c.StringSlice("web-config-app")
-
 			return nil
 		},
 		Action: func(c *cli.Context) error {
+			phoenixCommand := command.Server(configurePhoenix(cfg))
 
-			scfg := configurePhoenix(cfg)
+			if err := phoenixCommand.Before(c); err != nil {
+				return err
+			}
 
-			return cli.HandleAction(
-				command.Server(scfg).Action,
-				c,
-			)
+			return cli.HandleAction(phoenixCommand.Action, c)
 		},
 	}
 }

pkg/command/proxy.go

@@ -16,15 +16,14 @@ func ProxyCommand(cfg *config.Config) *cli.Command {
 		Usage:    "Start proxy server",
 		Category: "Extensions",
 		Flags:    flagset.ServerWithConfig(cfg.Proxy),
-		Action: func(c *cli.Context) error {
-			serverConfig := configureProxy(cfg)
-			serverCommand := command.Server(serverConfig)
+		Action: func(ctx *cli.Context) error {
+			proxyCommand := command.Server(configureProxy(cfg))
 
-			if err := serverCommand.Before(c); err != nil {
+			if err := proxyCommand.Before(ctx); err != nil {
 				return err
 			}
 
-			return cli.HandleAction(serverCommand.Action, c)
+			return cli.HandleAction(proxyCommand.Action, ctx)
 		},
 	}
 }

pkg/command/root.go

@@ -2,7 +2,6 @@ package command
 
 import (
 	"os"
-	"strings"
 
 	"github.com/micro/cli/v2"
 	"github.com/owncloud/ocis-pkg/v2/log"
@@ -11,7 +10,6 @@ import (
 	"github.com/owncloud/ocis/pkg/micro/runtime"
 	"github.com/owncloud/ocis/pkg/register"
 	"github.com/owncloud/ocis/pkg/version"
-	"github.com/spf13/viper"
 )
 
 // Execute is the entry point for the ocis-ocis command.
@@ -30,53 +28,9 @@ func Execute() error {
 				Email: "support@owncloud.com",
 			},
 		},
-
 		Flags: flagset.RootWithConfig(cfg),
-
-		Before: func(c *cli.Context) error {
-			logger := NewLogger(cfg)
-
-			viper.SetEnvKeyReplacer(strings.NewReplacer(".", "_"))
-			viper.SetEnvPrefix("OCIS")
-			viper.AutomaticEnv()
-
-			if c.IsSet("config-file") {
-				viper.SetConfigFile(c.String("config-file"))
-			} else {
-				viper.SetConfigName("ocis")
-
-				viper.AddConfigPath("/etc/ocis")
-				viper.AddConfigPath("$HOME/.ocis")
-				viper.AddConfigPath("./config")
-			}
-
-			if err := viper.ReadInConfig(); err != nil {
-				switch err.(type) {
-				case viper.ConfigFileNotFoundError:
-					logger.Info().
-						Msg("Continue without config")
-				case viper.UnsupportedConfigError:
-					logger.Fatal().
-						Err(err).
-						Msg("Unsupported config type")
-				default:
-					logger.Fatal().
-						Err(err).
-						Msg("Failed to read config")
-				}
-			}
-
-			if err := viper.Unmarshal(&cfg); err != nil {
-				logger.Fatal().
-					Err(err).
-					Msg("Failed to parse config")
-			}
-
-			return nil
-		},
 	}
 
-	// Load commands from the registry
 	for _, fn := range register.Commands {
 		app.Commands = append(
 			app.Commands,

pkg/command/server.go

@@ -39,6 +39,7 @@ func Server(cfg *config.Config) *cli.Command {
 				runtime.Services(append(runtime.MicroServices, runtime.Extensions...)),
 				runtime.Logger(logger),
 				runtime.MicroRuntime(cmd.DefaultCmd.Options().Runtime),
+				runtime.Context(c),
 			)
 
 			runtime.Start()

pkg/command/server_simple.go

@@ -52,6 +52,7 @@ func Simple(cfg *config.Config) *cli.Command {
 				runtime.Logger(logger),
 				runtime.Services(append(runtime.RuntimeServices, SimpleRuntimeServices...)),
 				runtime.MicroRuntime(cmd.DefaultCmd.Options().Runtime),
+				runtime.Context(c),
 			)
 
 			{

pkg/command/webdav.go

@@ -19,12 +19,13 @@ func WebDAVCommand(cfg *config.Config) *cli.Command {
 		Category: "Extensions",
 		Flags:    flagset.ServerWithConfig(cfg.WebDAV),
 		Action: func(c *cli.Context) error {
-			scfg := configureWebDAV(cfg)
+			webdavCommand := command.Server(configureWebDAV(cfg))
 
-			return cli.HandleAction(
-				command.Server(scfg).Action,
-				c,
-			)
+			if err := webdavCommand.Before(c); err != nil {
+				return err
+			}
+
+			return cli.HandleAction(webdavCommand.Action, c)
 		},
 	}
 }
@@ -33,9 +34,6 @@ func configureWebDAV(cfg *config.Config) *svcconfig.Config {
 	cfg.WebDAV.Log.Level = cfg.Log.Level
 	cfg.WebDAV.Log.Pretty = cfg.Log.Pretty
 	cfg.WebDAV.Log.Color = cfg.Log.Color
-	cfg.WebDAV.Tracing.Enabled = false
-	cfg.WebDAV.HTTP.Addr = "localhost:9115"
-	cfg.WebDAV.HTTP.Root = "/"
 
 	return cfg.WebDAV
 }

pkg/micro/runtime/options.go

@@ -1,6 +1,7 @@
 package runtime
 
 import (
+	"github.com/micro/cli/v2"
 	gorun "github.com/micro/go-micro/v2/runtime"
 	"github.com/owncloud/ocis-pkg/v2/log"
 )
@@ -10,6 +11,7 @@ type Options struct {
 	Services     []string
 	Logger       log.Logger
 	MicroRuntime *gorun.Runtime
+	Context      *cli.Context
 }
 
 // Option undocummented
@@ -46,3 +48,10 @@ func MicroRuntime(rt *gorun.Runtime) Option {
 		o.MicroRuntime = rt
 	}
 }
+
+// Context option
+func Context(c *cli.Context) Option {
+	return func(o *Options) {
+		o.Context = c
+	}
+}