Default log level is DEBUG and response is status OK

dex4er · Feb 5, 2024 · b383b5f · b383b5f
1 parent 9dd03fd
commit b383b5f
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Showing 2 changed files with 36 additions and 12 deletions.
diff --git a/README.md b/README.md
@@ -25,11 +25,11 @@ Lambda accepts parameters:
 }
 ```
 
-Lambda returns the message:
+Lambda returns the status:
 
 ```json
 {
-  "message": "Registered IP addresses of domain XXX to Target Group XXX: [A.A.A.A, A.A.A.A]"
+  "status": "OK"
 }
 ```
 
@@ -46,17 +46,17 @@ Copy the container to your private ECR:
 From DockerHub:
 
 ```sh
-docker pull dex4er/lambda-lb-target-group-dns
-docker tag dex4er/lambda-lb-target-group-dns ACCOUNTID.dkr.ecr.REGION.amazonaws.com/dex4er/lambda-lb-target-group-dns
-docker push ACCOUNTID.dkr.ecr.REGION.amazonaws.com/dex4er/lambda-lb-target-group-dns
+docker pull dex4er/lambda-lb-target-group-dns:TAG
+docker tag dex4er/lambda-lb-target-group-dns:TAG ACCOUNTID.dkr.ecr.REGION.amazonaws.com/dex4er/lambda-lb-target-group-dns:TAG
+docker push ACCOUNTID.dkr.ecr.REGION.amazonaws.com/dex4er/lambda-lb-target-group-dns:TAG
 ```
 
 or from Amazon ECR Public:
 
 ```sh
-docker pull public.ecr.aws/dex4er/lambda-lb-target-group-dns
-docker tag public.ecr.aws/dex4er/lambda-lb-target-group-dns ACCOUNTID.dkr.ecr.REGION.amazonaws.com/dex4er/lambda-lb-target-group-dns
-docker push ACCOUNTID.dkr.ecr.REGION.amazonaws.com/dex4er/lambda-lb-target-group-dns
+docker pull public.ecr.aws/dex4er/lambda-lb-target-group-dns:TAG
+docker tag public.ecr.aws/dex4er/lambda-lb-target-group-dns:TAG ACCOUNTID.dkr.ecr.REGION.amazonaws.com/dex4er/lambda-lb-target-group-dns:TAG
+docker push ACCOUNTID.dkr.ecr.REGION.amazonaws.com/dex4er/lambda-lb-target-group-dns:TAG
 ```
 
 Supported tags:
@@ -68,6 +68,28 @@ Supported tags:
 - vX
 - latest
 
+## IAM
+
+This lambda function needs the following permissions:
+
+```json
+{
+  "Version": "2012-10-17",
+  "Statement": [
+    {
+      "Effect": "Allow",
+      "Action": [
+        "elasticloadbalancing:DeregisterTargets",
+        "elasticloadbalancing:DescribeTargetGroups",
+        "elasticloadbalancing:DescribeTargetHealth",
+        "elasticloadbalancing:RegisterTargets"
+      ],
+      "Resource": "*"
+    }
+  ]
+}
+```
+
 ## License
 
 The MIT License (MIT)

diff --git a/main.go b/main.go
@@ -23,7 +23,7 @@ type MyEvent struct {
 }
 
 type MyResponse struct {
-	Message string `json:"message"`
+	Status string `json:"status"`
 }
 
 func getTargetGroup(svc *elbv2.ELBV2, targetGroupARN string) (*elbv2.TargetGroup, error) {
@@ -199,13 +199,15 @@ func HandleLambdaEvent(event *MyEvent) (*MyResponse, error) {
 		return nil, err
 	}
 
-	return &MyResponse{Message: fmt.Sprintf("Registered IP addresses of domain %s to Target Group %s: %v", event.DomainName, *tg.TargetGroupName, tgIpAddresses2)}, nil
+	log.Printf("[DEBUG] Registered IP addresses of domain %s to Target Group %s: %v", event.DomainName, *tg.TargetGroupName, tgIpAddresses2)
+
+	return &MyResponse{Status: "OK"}, nil
 }
 
 func main() {
 	logLevel := os.Getenv("LOG_LEVEL")
 	if logLevel == "" {
-		logLevel = "TRACE"
+		logLevel = "DEBUG"
 	}
 
 	filter := &logutils.LevelFilter{
@@ -238,6 +240,6 @@ func main() {
 			log.Fatalf("[ERROR] %v", err)
 		}
 
-		log.Printf("[DEBUG] %v", response.Message)
+		log.Printf("[TRACE] response: %v", response.Status)
 	}
 }