[Chore] Added Cleanup for Launch Configurations (#1335)

.github/workflows/clean-aws-resources.yml

@@ -234,6 +234,24 @@ jobs:
         working-directory: tool/clean
         run: go run ./clean_auto_scaling_groups/clean_auto_scaling_groups.go --tags=clean
 
+  clean-launch-configs:
+    runs-on: ubuntu-latest
+    permissions:
+      id-token: write
+      contents: read
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-go@v4
+
+      - name: Configure AWS Credentials
+        uses: aws-actions/configure-aws-credentials@v2
+        with:
+          role-to-assume: ${{ secrets.TERRAFORM_AWS_ASSUME_ROLE }}
+          aws-region: us-west-2
+
+      - name: Clean old launch configuration
+        working-directory: tool/clean
+        run: go run ./clean_launch_configuration/clean_launch_configuration.go --tags=clean
   clean-iam-roles:
     runs-on: ubuntu-latest
     permissions:

tool/clean/clean_launch_configuration/clean_launch_configuration.go

@@ -0,0 +1,59 @@
+// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
+// SPDX-License-Identifier: MIT
+package main
+
+import (
+	"context"
+	"errors"
+	"log"
+	"strings"
+	"time"
+
+	"github.com/aws/aws-sdk-go-v2/config"
+	"github.com/aws/aws-sdk-go-v2/service/autoscaling"
+
+	"github.com/aws/amazon-cloudwatch-agent/tool/clean"
+)
+
+func main() {
+	err := cleanLaunchConfiguration()
+	if err != nil {
+		log.Fatalf("errors cleaning %v", err)
+	}
+}
+func cleanLaunchConfiguration() error {
+	expirationDate := time.Now().UTC().Add(clean.KeepDurationSixtyDay)
+	ctx := context.Background()
+	defaultConfig, err := config.LoadDefaultConfig(ctx)
+	if err != nil {
+		return err
+	}
+	autoScalingClient := autoscaling.NewFromConfig(defaultConfig)
+	describeLaunchConfigurationsInput := autoscaling.DescribeLaunchConfigurationsInput{}
+	launchConfigOut, err := autoScalingClient.DescribeLaunchConfigurations(ctx, &describeLaunchConfigurationsInput)
+	if err != nil {
+		return err
+	}
+	if len(launchConfigOut.LaunchConfigurations) == 0 {
+		return errors.New("no launch configuration found")
+	}
+	log.Printf("Found %d launch configurations", len(launchConfigOut.LaunchConfigurations))
+	for _, launchConfig := range launchConfigOut.LaunchConfigurations {
+		log.Printf("Found %s with creation date: %v", *launchConfig.LaunchConfigurationName, *launchConfig.CreatedTime)
+		// if not cwagent-integ-test ignore it
+		if !strings.Contains(*launchConfig.LaunchConfigurationName, "integ") {
+			continue
+		}
+		if expirationDate.After(*launchConfig.CreatedTime) {
+			log.Printf("Try to delete %s", *launchConfig.LaunchConfigurationName)
+			_, err := autoScalingClient.DeleteLaunchConfiguration(ctx, &autoscaling.DeleteLaunchConfigurationInput{
+				LaunchConfigurationName: launchConfig.LaunchConfigurationName,
+			})
+			if err != nil {
+				return err
+			}
+			log.Printf("Succesfully deleted %s", *launchConfig.LaunchConfigurationName)
+		}
+	}
+	return nil
+}