AWSTemplateFormatVersion: '2010-09-09'
Description: This template is used for setting up Meta nodes.(qs-1t9ums4ko)
Metadata:
  QSLint:
    Exclusions: [ W9002, W9003, W9004, W9006 ]
Parameters:
  PrivateSubnet1ID:
    Description: ID of existing private subnet 1 for the Meta nodes.
    Type: AWS::EC2::Subnet::Id
  PrivateSubnet2ID:
    Description: ID of existing private subnet 2 for the Meta nodes.
    Type: AWS::EC2::Subnet::Id
  PrivateSubnet3ID:
    Description: ID of existing private subnet 3 for the Meta nodes.
    Type: AWS::EC2::Subnet::Id
  SecurityGroupID:
    Description: ID of your existing SecurityGroup for deployment.
    Type: AWS::EC2::SecurityGroup::Id
  MetaNodeCount:
    AllowedValues:
      - 1
      - 3
    Default: 1
    Description: Number of Meta nodes.
    Type: Number
Conditions:
  3MetaNodesCondition: !Equals [!Ref MetaNodeCount, '3']
Resources:
  MetaNode1NetworkInterface:
    Type: AWS::EC2::NetworkInterface
    Properties:
      Description: Network Interface for Meta Node 1
      SubnetId: !Ref PrivateSubnet1ID
      GroupSet:
        - !Ref SecurityGroupID
      SourceDestCheck: false
  MetaNode2NetworkInterface:
    Type: AWS::EC2::NetworkInterface
    Condition: 3MetaNodesCondition
    Properties:
      Description: Network Interface for Meta Node 2
      SubnetId: !Ref PrivateSubnet2ID
      GroupSet:
        - !Ref SecurityGroupID
      SourceDestCheck: false
  MetaNode3NetworkInterface:
    Type: AWS::EC2::NetworkInterface
    Condition: 3MetaNodesCondition
    Properties:
      Description: Network Interface for Meta Node 3
      SubnetId: !Ref PrivateSubnet3ID
      GroupSet:
        - !Ref SecurityGroupID
      SourceDestCheck: false
Outputs:
  NetworkInterface1ID:
    Description: The ENI Physical ID of Meta Node 1
    Value: !Ref MetaNode1NetworkInterface
  NetworkInterface2ID:
    Description: The ENI Physical ID of Meta Node 2
    Value: !If
      - 3MetaNodesCondition
      - !Ref MetaNode2NetworkInterface
      - ''
  NetworkInterface3ID:
    Description: The ENI Physical ID of Meta Node 3
    Value: !If
      - 3MetaNodesCondition
      - !Ref MetaNode3NetworkInterface
      - ''
  MetaIPs:
    Description: The private ip addresses of Meta nodes, seperated by comma ','
    Value: !If
      - 3MetaNodesCondition
      - !Sub [ '${MetaAddress1},${MetaAddress2},${MetaAddress3}', { MetaAddress1: !GetAtt MetaNode1NetworkInterface.PrimaryPrivateIpAddress, MetaAddress2: !GetAtt MetaNode2NetworkInterface.PrimaryPrivateIpAddress, MetaAddress3: !GetAtt MetaNode3NetworkInterface.PrimaryPrivateIpAddress } ]
      - !Sub [ '${MetaAddress}', { MetaAddress: !GetAtt MetaNode1NetworkInterface.PrimaryPrivateIpAddress } ]
  MetaEndpoints:
    Description: The endpoints of Meta nodes, seperated by comma ','
    Value: !If
      - 3MetaNodesCondition
      - !Sub [ '${MetaAddress1}:9559,${MetaAddress2}:9559,${MetaAddress3}:9559', { MetaAddress1: !GetAtt MetaNode1NetworkInterface.PrimaryPrivateIpAddress, MetaAddress2: !GetAtt MetaNode2NetworkInterface.PrimaryPrivateIpAddress, MetaAddress3: !GetAtt MetaNode3NetworkInterface.PrimaryPrivateIpAddress } ]
      - !Sub [ '${MetaAddress}:9559', { MetaAddress: !GetAtt MetaNode1NetworkInterface.PrimaryPrivateIpAddress } ]