---
AWSTemplateFormatVersion: '2010-09-09'
Description: This template creates EC2 instances on AWS. It deploys Oracle database. 
  **WARNING** This template creates EC2 instances and related resources. You will be billed for the AWS 
  resources used if you create a stack from this template.
Metadata:
  AWS::CloudFormation::Interface:
    ParameterGroups:
      - Label:
          default: Environment Configuration
        Parameters:
        - EnvironmentSize
        - VpcId
        - Subnets
        - SecurityGroups
      - Label:
          default: Amazon EC2 Configuration
        Parameters:
        - KeyPairName
        - StackPrefix
        - IamInstanceProfile
      - Label:
          default: Workload Configuration
        Parameters:
        - PuppetServerIP        
        - ProxyServer
    ParameterLabels:
      EnvironmentSize:
        default: Environment Size
      VpcId:
        default: VPC ID
      Subnets:
        default: Private Subnet ID(s)
      SecurityGroups:
        default: Security Group ID(s)
      KeyPairName:
        default: Key Pair Name
      StackPrefix:
        default: Stack Name Prefix
      PuppetServerIP:
        default: Pupper Server IP Address
      ProxyServer:
        default: Proxy Server URL
      IamInstanceProfile:
        default: IAM Instance Profile   
Parameters:
  EnvironmentSize:
    Type: String
    Default: Small
    AllowedValues:
      - Small
      - Medium
      - Large
    Description: Select Environment Size (S,M,L)
  VpcId:
    Type: AWS::EC2::VPC::Id
    Description: VpcId of your existing Virtual Private Cloud (VPC)
    ConstraintDescription: must be the VPC Id of an existing Virtual Private Cloud.
  Subnets:
    Type: List<AWS::EC2::Subnet::Id>
    Description: The list of SubnetIds in your Virtual Private Cloud (VPC)
    ConstraintDescription: must be a list of at least two existing subnets associated
      with at least two different availability zones. They should be residing in the
      selected Virtual Private Cloud.
  SecurityGroups:
    Type: List<AWS::EC2::SecurityGroup::Id>
    Description: The list of SecurityGroupIds in your Virtual Private Cloud (VPC)
    ConstraintDescription: must be the SecurityGroup Ids of an existing Virtual Private Cloud.
  KeyPairName:
    Description: The EC2 Key Pair to allow SSH access to the instances
    Type: AWS::EC2::KeyPair::KeyName
    ConstraintDescription: must be the name of an existing EC2 KeyPair.
  StackPrefix:
    Type: String
    MinLength: "1"
    MaxLength: "20"
    AllowedPattern: "[a-zA-Z0-9]*"
    Description: The prefix to all the associated resources in the stack
    Default: Simphony
  PuppetServerIP:
    Type: String
    Default: "10.10.0.230"
  ProxyServer:
    Type: String
    Default: "http://192.168.50.197:3128"
  IamInstanceProfile:
    Type: String
    Default: simphony_ec2_instance
    Description: must be the IAM Instance Profile of an existing Virtual Private Cloud.  
Mappings:
  RegionMap:
    us-east-1:
      "OEL7AMI" : "ami-0f5e4de17ec9ea1b8"
    ap-northeast-1:
      "OEL7AMI" : "ami-070d8d39442436586"
    ap-northeast-2:
      "OEL7AMI" : "ami-088fd31b9429bab5f"
    ap-south-1:
      "OEL7AMI" : "ami-08e4e9f5c64c4befc"
    ap-southeast-1:
      "OEL7AMI" : "ami-0284c1360e759acdf"
    ap-southeast-2:
      "OEL7AMI" : "ami-07824d3d329f9a9f8"
    ca-central-1:
      "OEL7AMI" : "ami-03bb0516cb27a3103"
    eu-central-1:
      "OEL7AMI" : "ami-03776a387eb0f2cb4"
    eu-north-1:
      "OEL7AMI" : "ami-05e73148d1af4b031"
    eu-west-1:
      "OEL7AMI" : "ami-0d2e527a99778d31c"
    eu-west-2:
      "OEL7AMI" : "ami-05e974c6d389dc49e"
    eu-west-3:
      "OEL7AMI" : "ami-00305c4621f7761e5"
    sa-east-1:
      "OEL7AMI" : "ami-09a4c73fc7f5e5a38"
    us-east-2:
      "OEL7AMI" : "ami-029d1f47786637314"
    us-west-1:
      "OEL7AMI" : "ami-0139118fa80b5b4bb"
    us-west-2:
      "OEL7AMI" : "ami-001ed3bebf18ea5d6"
  InstanceSize:
    Small:
      "EC2" : "c5.large"
      "MinSize" : "1"
      "MaxSize" : "1"
      "DesireSize" : "1"
      "EbsVolumeSize" : "200"
    Medium:
      "EC2" : "c5.xlarge"
      "MinSize" : "1"
      "MaxSize" : "1"
      "DesireSize" : "1"
      "EbsVolumeSize" : "250"
    Large:
      "EC2" : "c5.2xlarge"
      "MinSize" : "1"
      "MaxSize" : "1"
      "DesireSize" : "1"  
      "EbsVolumeSize" : "500"
Resources:
  LaunchConfig:
    Type: AWS::AutoScaling::LaunchConfiguration
    Properties:
      KeyName: !Ref KeyPairName
      InstanceType: !FindInMap [InstanceSize, !Ref EnvironmentSize, EC2]
      ImageId: !FindInMap [RegionMap, !Ref "AWS::Region", OEL7AMI]
      IamInstanceProfile: !Ref IamInstanceProfile
      BlockDeviceMappings:
        - DeviceName: /dev/sda1
          Ebs:
            VolumeSize: !FindInMap [InstanceSize, !Ref EnvironmentSize, EbsVolumeSize]
            VolumeType: "gp2"
      SecurityGroups: 
        Ref: SecurityGroups
      UserData:
        "Fn::Base64":
          !Sub |
            #!/bin/bash
            #sudo su root           
            echo "proxy=${ProxyServer}" >> /etc/yum.conf
            yum -y install ca-certificates
            
            echo "${PuppetServerIP} puppet.skillnetaws.com puppet" >> /etc/hosts
            echo "$(curl http://169.254.169.254/latest/meta-data/local-ipv4) oracdb02.skillnetaws.com oracdb02" >> /etc/hosts
            
            #Install ntp server
            yum -y install ntp ntpdate
            systemctl start ntpd
            systemctl enable ntpd
            
            #Install puppet agent
            rpm -Uvh -httpproxy "${ProxyServer}"  https://yum.puppetlabs.com/puppet5/puppet5-release-el-7.noarch.rpm
            yum install -y puppet-agent
            
            echo "[main]" >> /etc/puppetlabs/puppet/puppet.conf
            echo "certname = oracdb01.skillnetaws.com" >> /etc/puppetlabs/puppet/puppet.conf
            echo "server = puppet.skillnetaws.com" >> /etc/puppetlabs/puppet/puppet.conf
            echo "environment = simphony_oracledb" >> /etc/puppetlabs/puppet/puppet.conf
            
            #/opt/puppetlabs/bin/puppet agent -t            
  SimphonyOracleDBGroup:
    Type: AWS::AutoScaling::AutoScalingGroup
    Properties:
      VPCZoneIdentifier:
        Ref: Subnets
      LaunchConfigurationName:
        Ref: LaunchConfig
      MinSize: !FindInMap [InstanceSize, !Ref EnvironmentSize, MinSize]
      MaxSize: !FindInMap [InstanceSize, !Ref EnvironmentSize, MaxSize]
      DesiredCapacity: !FindInMap [InstanceSize, !Ref EnvironmentSize, DesireSize]
      Tags:
        -
          Key: Name
          PropagateAtLaunch: true
          Value: !Join [ " - ", [ !Ref StackPrefix, "DB" ] ] 
        -
          Key: LCM_TAG
          PropagateAtLaunch: true
          Value: SIM