Add support for Hybrik as a transcoding provider

Initial implementation of the video-transcoding-api provider interface for
Hybrik.

Majority coding credit to Leonardo Soares (leonardogcsoares)

config/config.go

@@ -16,6 +16,7 @@ type Config struct {
 	EncodingCom            *EncodingCom
 	ElasticTranscoder      *ElasticTranscoder
 	ElementalConductor     *ElementalConductor
+	Hybrik                 *Hybrik
 	Zencoder               *Zencoder
 	Bitmovin               *Bitmovin
 }
@@ -72,6 +73,18 @@ type Bitmovin struct {
 	EncodingVersion  string `envconfig:"BITMOVIN_ENCODING_VERSION" default:"STABLE"`
 }
 
+// Hybrik represents the set of configurations for the Hybrik
+// provider.
+type Hybrik struct {
+	URL            string `envconfig:"HYBRIK_URL"`
+	ComplianceDate string `envconfig:"HYBRIK_COMPLIANCE_DATE"`
+	OAPIKey        string `envconfig:"HYBRIK_OAPI_KEY"`
+	OAPISecret     string `envconfig:"HYBRIK_OAPI_SECRET"`
+	AuthKey        string `envconfig:"HYBRIK_AUTH_KEY"`
+	AuthSecret     string `envconfig:"HYBRIK_AUTH_SECRET"`
+	Destination    string `envconfig:"HYBRIK_DESTINATION"`
+}
+
 // LoadConfig loads the configuration of the API using environment variables.
 func LoadConfig() *Config {
 	cfg := Config{
@@ -80,10 +93,11 @@ func LoadConfig() *Config {
 		ElasticTranscoder:  new(ElasticTranscoder),
 		ElementalConductor: new(ElementalConductor),
 		Bitmovin:           new(Bitmovin),
+		Hybrik:             new(Hybrik),
 		Server:             new(server.Config),
 	}
 	config.LoadEnvConfig(&cfg)
-	loadFromEnv(cfg.Redis, cfg.EncodingCom, cfg.ElasticTranscoder, cfg.ElementalConductor, cfg.Bitmovin, cfg.Server)
+	loadFromEnv(cfg.Redis, cfg.EncodingCom, cfg.ElasticTranscoder, cfg.ElementalConductor, cfg.Bitmovin, cfg.Hybrik, cfg.Server)
 	return &cfg
 }
 

main.go

@@ -8,6 +8,7 @@ import (
 	_ "github.com/NYTimes/video-transcoding-api/provider/elastictranscoder"
 	_ "github.com/NYTimes/video-transcoding-api/provider/elementalconductor"
 	_ "github.com/NYTimes/video-transcoding-api/provider/encodingcom"
+	_ "github.com/NYTimes/video-transcoding-api/provider/hybrik"
 	_ "github.com/NYTimes/video-transcoding-api/provider/zencoder"
 	"github.com/NYTimes/video-transcoding-api/service"
 	"github.com/google/gops/agent"
@@ -25,6 +26,7 @@ func main() {
 	server.Init("video-transcoding-api", cfg.Server)
 	server.Log.Hooks.Add(logrus_stack.StandardHook())
 	server.Log.Hooks.Add(logrus_env.NewHook([]string{"ENVIRONMENT"}))
+
 	gcpLoggingHook, err := sdhook.New(
 		sdhook.GoogleLoggingAgent(),
 		sdhook.ErrorReportingService("video-transcoding-api"),