docker ECR login (go-aws-sdk)

app/modules/aws_ledo/ecr_login.go

@@ -0,0 +1,36 @@
+package aws_ledo
+
+import (
+	"fmt"
+	"github.com/aws/aws-sdk-go/aws"
+	"github.com/aws/aws-sdk-go/aws/session"
+	"github.com/aws/aws-sdk-go/service/ecr"
+	"os"
+)
+
+func getRegion() string {
+	region, exists := os.LookupEnv("AWS_REGION")
+	if !exists {
+		fmt.Printf("AWS_REGION not set and unable to fetch region")
+		os.Exit(1)
+	}
+	return region
+}
+
+func EcrLogin() (*ecr.GetAuthorizationTokenOutput, error) {
+	var input *ecr.GetAuthorizationTokenInput
+	var token *ecr.GetAuthorizationTokenOutput
+
+	config := &aws.Config{
+    	Region:      aws.String(getRegion()),
+	}
+	sess, _ := session.NewSession(config)
+	_, err := sess.Config.Credentials.Get()
+		if err != nil {
+		return token, err
+	}
+
+	ecrCtx := ecr.New(sess)
+	token, err = ecrCtx.GetAuthorizationToken(input)
+	return token, nil
+}