AWSTemplateFormatVersion: '2010-09-09'
Description: catsndogs.lol workshop lab2. Deploys a load generator.
Parameters:
  LabSetupStackName:
    Type: String
    Description: "Name of the catsndogs.lol workshop stack you created in Lab 0 / setup"
    Default: catsndogssetup
Mappings:
  AWSRegionToAMZNLinuxAMI:
    us-east-1:
      AMIID: ami-a4c7edb2
    us-east-2:
      AMIID: ami-8a7859ef
    us-west-1:
      AMIID: ami-327f5352
    us-west-2:
      AMIID: ami-6df1e514
    eu-central-1:
      AMIID: ami-82be18ed
    eu-west-1:
      AMIID: ami-d7b9a2b1
    eu-west-2:
      AMIID: ami-ed100689
    ap-northeast-1:
      AMIID: ami-3bd3c45c
    ap-southeast-2:
      AMIID: ami-10918173
    ap-southeast-1:
      AMIID: ami-77af2014
    ca-central-1:
      AMIID: ami-a7aa15c3
Resources:
  LoadGeneratorInstance:
    Type: AWS::EC2::Instance
    Metadata:
      AWS::CloudFormation::Init:
        config:
          files:
            /home/ec2-user/targets:
              content: !Join ['', [ "GET http://", "Fn::ImportValue" : {"Fn::Sub":'${LabSetupStackName}-ALBDNSName'}, '/cats', '
              
              ', 'GET http://', "Fn::ImportValue" : {"Fn::Sub":'${LabSetupStackName}-ALBDNSName'}, '/dogs', '
              
              ']]
              mode: '000777'
              owner: root
              group: root
            /home/ec2-user/load.sh:
              content: !Join ['', [ '#! /bin/bash', '
              
              ', 'cd /home/ec2-user
              
              ', '/home/ec2-user/vegeta attack -targets targets -timeout 15m -output results.txt
              
              ']]
              mode: '000777'
              owner: root
              group: root
    Properties:
      ImageId: !FindInMap [AWSRegionToAMZNLinuxAMI, !Ref 'AWS::Region', AMIID]
      SubnetId:
        Fn::ImportValue:
          !Sub "${LabSetupStackName}-PriSubnet1"
      InstanceType: m4.large
      Tags:
        -
          Key: Name
          Value: LoadGenerator
      UserData: !Base64
        Fn::Join:
        - ''
        - ['#!/bin/bash

        ', '/opt/aws/bin/cfn-init -s ', !Ref 'AWS::StackName', ' -r LoadGeneratorInstance --region ', !Ref 'AWS::Region', '

        ', 'wget http://catsndogs-assets.s3.amazonaws.com/vegeta -P /home/ec2-user/

        ', 'chmod +x /home/ec2-user/vegeta

        ', 'sleep 10', '

        ', '/home/ec2-user/load.sh','
        
        ']