Creazione di un ambiente di test

AWSTemplateFormatVersion: '2010-09-09'
Description: 'AWS DevOps Agent EC2 CPU Test Stack'
Parameters:
  VpcId:
    Type: AWS::EC2::VPC::Id
    Description: ID of an existing VPC where the test instance will be launched.
  SubnetId:
    Type: AWS::EC2::Subnet::Id
    Description: ID of an existing subnet within the selected VPC. Choose a subnet that routes to an internet gateway if you plan to connect via SSH.
  MyIP:
    Type: String
    Description: Your current IP address for SSH access (find at https://whatismyipaddress.com)
    Default: '0.0.0.0/0'
Resources:
  # Security Group for SSH access
  TestSecurityGroup:
    Type: AWS::EC2::SecurityGroup
    Properties:
      GroupDescription: AWS DevOps Agent beta testing security group
      VpcId: !Ref VpcId
      SecurityGroupIngress:
        - IpProtocol: tcp
          FromPort: 22
          ToPort: 22
          CidrIp: !Ref MyIP
          Description: SSH access from your IP
      Tags:
        - Key: Name
          Value: AWS-DevOpsAgent-Test-SG
        - Key: Purpose
          Value: AWS-DevOpsAgent-Testing
  # Key Pair for SSH access
  TestKeyPair:
    Type: AWS::EC2::KeyPair
    Properties:
      KeyName: AWS-DevOpsAgent-test-key
      KeyType: rsa
      Tags:
        - Key: Name
          Value: AWS-DevOpsAgent-Test-Key
        - Key: Purpose
          Value: AWS-DevOpsAgent-Testing
  # IAM Role for Session Manager access
  SSMInstanceRole:
    Type: AWS::IAM::Role
    Properties:
      AssumeRolePolicyDocument:
        Version: '2012-10-17'
        Statement:
          - Effect: Allow
            Principal:
              Service: ec2.amazonaws.com
            Action: sts:AssumeRole
      ManagedPolicyArns:
        - arn:aws:iam::aws:policy/AmazonSSMManagedInstanceCore
      Tags:
        - Key: Name
          Value: AWS-DevOpsAgent-Test-SSMRole
        - Key: Purpose
          Value: AWS-DevOpsAgent-Testing
  # Instance profile wrapping the SSM role
  SSMInstanceProfile:
    Type: AWS::IAM::InstanceProfile
    Properties:
      Roles:
        - !Ref SSMInstanceRole
  # EC2 Instance for CPU testing
  TestInstance:
    Type: AWS::EC2::Instance
    Properties:
      InstanceType: t3.micro
      ImageId: '{{resolve:ssm:/aws/service/ami-amazon-linux-latest/al2023-ami-kernel-6.1-x86_64}}'
      KeyName: !Ref TestKeyPair
      SubnetId: !Ref SubnetId
      SecurityGroupIds:
        - !GetAtt TestSecurityGroup.GroupId
      IamInstanceProfile: !Ref SSMInstanceProfile
      InstanceInitiatedShutdownBehavior: terminate
      UserData:
        Fn::Base64: !Sub |
          #!/bin/bash
          yum update -y
          yum install -y htop
          
          # Create the CPU stress test script
          cat > /home/ec2-user/cpu-stress-test.sh << 'EOF'
          #!/bin/bash
          echo "Starting AWS DevOpsAgent CPU Stress Test"
          echo "Time: $(date)"
          echo "Instance: $(curl -s http://169.254.169.254/latest/meta-data/instance-id)"
          echo ""
          
          # Get number of CPU cores
          CORES=$(nproc)
          echo "CPU Cores: $CORES"
          echo ""
          
          echo "Starting stress test (5 minutes)..."
          echo "This will generate >70% CPU usage to trigger CloudWatch alarm"
          echo ""
          
          # Create CPU load using yes command
          echo "Starting CPU load processes..."
          for i in $(seq 1 $CORES); do
              (yes > /dev/null) &
              CPU_PID=$!
              echo "Started CPU load process $i (PID: $CPU_PID)"
              echo $CPU_PID >> /tmp/cpu_test_pids
          done
          
          # Auto-cleanup after 5 minutes
          (sleep 300 && echo "Stopping CPU load processes..." && kill $(cat /tmp/cpu_test_pids 2>/dev/null) 2>/dev/null && rm -f /tmp/cpu_test_pids) &
          
          echo ""
          echo "CPU load processes started for 5 minutes"
          echo "Check CloudWatch for alarm trigger in 3-5 minutes"
          EOF
          
          chmod +x /home/ec2-user/cpu-stress-test.sh
          chown ec2-user:ec2-user /home/ec2-user/cpu-stress-test.sh
          
          # Create auto-shutdown script (safety mechanism)
          cat > /home/ec2-user/auto-shutdown.sh << 'SHUTDOWN_EOF'
          #!/bin/bash
          echo "Auto-shutdown scheduled for 2 hours from now: $(date)"
          sleep 7200
          echo "Auto-shutdown executing at: $(date)"
          sudo shutdown -h now
          SHUTDOWN_EOF
          
          chmod +x /home/ec2-user/auto-shutdown.sh
          nohup /home/ec2-user/auto-shutdown.sh > /home/ec2-user/auto-shutdown.log 2>&1 &
          
          echo "AWS DevOpsAgent test setup completed at $(date)" > /home/ec2-user/setup-complete.txt
      Tags:
        - Key: Name
          Value: AWS-DevOpsAgent-Test-Instance
        - Key: Purpose
          Value: AWS-DevOpsAgent-Testing
  # CloudWatch Alarm for CPU utilization
  CPUAlarm:
    Type: AWS::CloudWatch::Alarm
    Properties:
      AlarmName: AWS-DevOpsAgent-EC2-CPU-Test
      AlarmDescription: AWS-DevOpsAgent beta test - EC2 CPU utilization alarm
      MetricName: CPUUtilization
      Namespace: AWS/EC2
      Statistic: Average
      Period: 60
      EvaluationPeriods: 1
      Threshold: 70
      ComparisonOperator: GreaterThanThreshold
      Dimensions:
        - Name: InstanceId
          Value: !Ref TestInstance
      TreatMissingData: notBreaching
Outputs:
  InstanceId:
    Description: EC2 Instance ID for testing
    Value: !Ref TestInstance
  
  SecurityGroupId:
    Description: Security Group ID
    Value: !GetAtt TestSecurityGroup.GroupId
    
  AlarmName:
    Description: CloudWatch Alarm Name
    Value: !Ref CPUAlarm
    
  SSHCommand:
    Description: SSH command to connect to instance
    Value: !Sub 'ssh -i "AWS-DevOpsAgent-test-key.pem" ec2-user@${TestInstance.PublicDnsName}'

VpcId: seleziona un VPC esistente dal menu a discesa.

SubnetId: seleziona una sottorete all'interno del VPC che hai scelto. Per l'accesso SSH, la sottorete deve essere indirizzata a un gateway Internet e all'istanza deve essere associato un indirizzo IPv4 pubblico. Altrimenti, l'SSHCommandoutput sarà vuoto e le connessioni SSH non avranno esito positivo.

MyIP: lascia il valore predefinito 0.0.0.0/0 (puoi proteggerlo in seguito, se necessario)

AWSTemplateFormatVersion: '2010-09-09'
Description: 'AWS DevOpsAgent Lambda Error Test Stack'
Resources:
  # IAM Role for Lambda function
  LambdaExecutionRole:
    Type: AWS::IAM::Role
    Properties:
      RoleName: AWS-DevOpsAgentLambdaTestRole
      AssumeRolePolicyDocument:
        Version: '2012-10-17'
        Statement:
          - Effect: Allow
            Principal:
              Service: lambda.amazonaws.com
            Action: sts:AssumeRole
      ManagedPolicyArns:
        - arn:aws:iam::aws:policy/service-role/AWSLambdaBasicExecutionRole
      Tags:
        - Key: Name
          Value: AWS-DevOpsAgent-Lambda-Test-Role
        - Key: Purpose
          Value: AWS-DevOpsAgent-Testing
  # Lambda function that generates errors
  TestLambdaFunction:
    Type: AWS::Lambda::Function
    Properties:
      FunctionName: AWS-DevOpsAgent-test-lambda
      Runtime: python3.12
      Handler: index.lambda_handler
      Role: !GetAtt LambdaExecutionRole.Arn
      Code:
        ZipFile: |
          import json
          import random
          import time
          from datetime import datetime
          def lambda_handler(event, context):
              print(f"AWS DevOpsAgent Test Lambda - {datetime.now()}")
              print(f"Event: {json.dumps(event)}")
              
              # Intentionally generate errors for testing
              error_scenarios = [
                  "Simulated database connection timeout",
                  "Test API rate limit exceeded", 
                  "Intentional validation error for AWS DevOpsAgent testing"
              ]
              
              # Always throw an error for testing purposes
              error_message = random.choice(error_scenarios)
              print(f"Generating test error: {error_message}")
              
              # This will create a Lambda error that CloudWatch will detect
              raise Exception(f"AWS DevOpsAgent Test Error: {error_message}")
      Description: AWS DevOpsAgent beta test function - intentionally generates errors
      Timeout: 30
      Tags:
        - Key: Name
          Value: AWS-DevOpsAgent-Test-Lambda
        - Key: Purpose
          Value: AWS-DevOpsAgent-Testing
  # CloudWatch Alarm for Lambda errors
  LambdaErrorAlarm:
    Type: AWS::CloudWatch::Alarm
    Properties:
      AlarmName: AWS-DevOpsAgent-Lambda-Error-Test
      AlarmDescription: AWS-DevOpsAgent beta test - Lambda error rate alarm
      MetricName: Errors
      Namespace: AWS/Lambda
      Statistic: Sum
      Period: 60
      EvaluationPeriods: 1
      Threshold: 0
      ComparisonOperator: GreaterThanThreshold
      Dimensions:
        - Name: FunctionName
          Value: !Ref TestLambdaFunction
      TreatMissingData: notBreaching
Outputs:
  LambdaFunctionName:
    Description: Lambda Function Name for testing
    Value: !Ref TestLambdaFunction
    
  LambdaFunctionArn:
    Description: Lambda Function ARN
    Value: !GetAtt TestLambdaFunction.Arn
    
  AlarmName:
    Description: CloudWatch Alarm Name
    Value: !Ref LambdaErrorAlarm
    
  TestCommand:
    Description: AWS CLI command to test the function
    Value: !Sub 'aws lambda invoke --function-name ${TestLambdaFunction} --payload "{\"test\":\"AWS DevOpsAgent validation\"}" response.json'

{
"test": "AWS DevOpsAgent validation",
"timestamp": "2024-01-01T00:00:00Z"
}