kafka-hands-on-cloudformation-template0.yml

AWSTemplateFormatVersion: "2010-09-09"
Description: "Template to start EC2 instance from image containing kafka and other tools with an EIP and a proper security group"
Parameters:
  ParamEC2:
    Type: String
Resources:
  UpScalingPolicy:
    Type: "AWS::AutoScaling::ScalingPolicy"
    Properties:
      AdjustmentType: "ChangeInCapacity"
      AutoScalingGroupName: !Ref MyAutoScalingGroup
      Cooldown: "300"
      PolicyType: "SimpleScaling"
      ScalingAdjustment: '1'
  DownScalingPolicy:
    Type: "AWS::AutoScaling::ScalingPolicy"
    Properties:
      AdjustmentType: "ChangeInCapacity"
      AutoScalingGroupName: !Ref MyAutoScalingGroup
      Cooldown: "300"
      PolicyType: "SimpleScaling"
      ScalingAdjustment: '-1'
  CPUAlarmHigh:
     Type: "AWS::CloudWatch::Alarm"
     Properties:
        AlarmDescription: "Scale-up if CPU > 90% for 10 minutes"
        MetricName: "CPUUtilization"
        Namespace: "AWS/EC2"
        Statistic: "Average"
        Period: "300"
        EvaluationPeriods: "2"
        Threshold: "90"
        AlarmActions: [ Ref: UpScalingPolicy ]
        Dimensions:
        -
          Name: "AutoScalingGroupName"
          Value:
            Ref: MyAutoScalingGroup
        ComparisonOperator: "GreaterThanThreshold"
  CPUAlarmDown:
     Type: "AWS::CloudWatch::Alarm"
     Properties:
        AlarmDescription: "Scale-up if CPU < 70% for 10 minutes"
        MetricName: "CPUUtilization"
        Namespace: "AWS/EC2"
        Statistic: "Average"
        Period: "300"
        EvaluationPeriods: "2"
        Threshold: "90"
        AlarmActions: [ Ref: DownScalingPolicy ]
        Dimensions:
        -
          Name: "AutoScalingGroupName"
          Value:
            Ref: MyAutoScalingGroup
        ComparisonOperator: "LessThanThreshold"
  MyAutoScalingGroup:
    Type: "AWS::AutoScaling::AutoScalingGroup"
    Properties:
      AvailabilityZones:
        Fn::GetAZs:
          Ref: "AWS::Region"
      MaxSize: 4
      MinSize: 1
      InstanceId:
        - !Ref EC2Instance1
        - !Ref EC2Instance2
        - !Ref EC2Instance3
        - !Ref EC2Instance4
        - !Ref EC2Instance5
        - !Ref EC2Instance6
      VPCZoneIdentifier:
      - subnet-4520f632
      - subnet-98633cde
      - subnet-76d87013
  EC2Instance1:
      Type: "AWS::EC2::Instance"
      Properties:
          ImageId:
            Ref: ParamEC2
          KeyName: "NIG-NPA-kafka-pilot"
          InstanceType: t2.small
          SecurityGroupIds:
          - !Ref HandsOnSecurityGroup
  EC2Instance2:
      Type: "AWS::EC2::Instance"
      Properties:
          ImageId:
            Ref: ParamEC2
          KeyName: "NIG-NPA-kafka-pilot"
          InstanceType: t2.small
          SecurityGroupIds:
          - !Ref HandsOnSecurityGroup
  EC2Instance3:
      Type: "AWS::EC2::Instance"
      Properties:
          ImageId:
            Ref: ParamEC2
          KeyName: "NIG-NPA-kafka-pilot"
          InstanceType: t2.small
          SecurityGroupIds:
          - !Ref HandsOnSecurityGroup
  EC2Instance4:
      Type: "AWS::EC2::Instance"
      Properties:
          ImageId:
            Ref: ParamEC2
          KeyName: "NIG-NPA-kafka-pilot"
          InstanceType: t2.small
          SecurityGroupIds:
          - !Ref HandsOnSecurityGroup
  EC2Instance5:
      Type: "AWS::EC2::Instance"
      Properties:
          ImageId:
            Ref: ParamEC2
          KeyName: "NIG-NPA-kafka-pilot"
          InstanceType: t2.small
          SecurityGroupIds:
          - !Ref HandsOnSecurityGroup
  EC2Instance6:
      Type: "AWS::EC2::Instance"
      Properties:
          ImageId:
            Ref: ParamEC2
          KeyName: "NIG-NPA-kafka-pilot"
          InstanceType: t2.small
          SecurityGroupIds:
          - !Ref HandsOnSecurityGroup
  HandsOnSecurityGroup:
    Type: "AWS::EC2::SecurityGroup"
    Properties:
      GroupDescription: "Security group opened to all ips for the hands-on duration"
      SecurityGroupEgress:
        - IpProtocol: '-1'
          FromPort: '0'
          ToPort: '0'
          CidrIp: 0.0.0.0/0
      SecurityGroupIngress:
        - IpProtocol: tcp
          FromPort: '0'
          ToPort: '65535'
          CidrIp: 0.0.0.0/0
      VpcId: "vpc-4f7bad2a"
Outputs:
  PublicIp1:
    Value: !GetAtt EC2Instance1.PublicIp
    Description: "Public ip of the set up EC2 Instance"
  PublicIp2:
    Value: !GetAtt EC2Instance2.PublicIp
    Description: "Public ip of the set up EC2 Instance"
  PublicIp3:
    Value: !GetAtt EC2Instance3.PublicIp
    Description: "Public ip of the set up EC2 Instance"
  PublicIp4:
    Value: !GetAtt EC2Instance4.PublicIp
    Description: "Public ip of the set up EC2 Instance"
  PublicIp5:
    Value: !GetAtt EC2Instance5.PublicIp
    Description: "Public ip of the set up EC2 Instance"
  PublicIp6:
    Value: !GetAtt EC2Instance6.PublicIp
    Description: "Public ip of the set up EC2 Instance"