subnet.yml

Resources:
  ServerlessSubnetGroup:
    DependsOn:
      - ServerlessSubnetA
      - ServerlessSubnetB
      - ServerlessSubnetC

    Type: AWS::RDS::DBSubnetGroup
    Properties:
      DBSubnetGroupDescription: 'RDS Subnet Group'
      SubnetIds:
        - Ref: ServerlessSubnetA
        - Ref: ServerlessSubnetB
        - Ref: ServerlessSubnetC
      Tags:
        - Key: 'Name'
          Value: 'ServerlessSubnetGroup'
  ServerlessSubnetA:
    DependsOn:
      - ServerlessVPC
    Type: AWS::EC2::Subnet
    Properties:
      VpcId:
        Ref: ServerlessVPC
      AvailabilityZone: ${self:provider.region}a
      CidrBlock: ${self:custom.AURORA.VPC_CIDR}.0.0.0/24
      Tags:
        - Key: 'Name'
          Value: 'ServerlessSubnetA'
  ServerlessSubnetB:
    DependsOn:
      - ServerlessVPC
    Type: AWS::EC2::Subnet
    Properties:
      VpcId:
        Ref: ServerlessVPC
      AvailabilityZone: ${self:provider.region}b
      CidrBlock: ${self:custom.AURORA.VPC_CIDR}.0.1.0/24
      Tags:
        - Key: 'Name'
          Value: 'ServerlessSubnetB'
  ServerlessSubnetC:
    DependsOn:
      - ServerlessVPC
    Type: AWS::EC2::Subnet
    Properties:
      VpcId:
        Ref: ServerlessVPC
      AvailabilityZone: ${self:provider.region}c
      CidrBlock: ${self:custom.AURORA.VPC_CIDR}.0.2.0/24
      Tags:
        - Key: 'Name'
          Value: 'ServerlessSubnetC'
  ServerlessPrivateSubnetA:
    DependsOn: ServerlessVPC
    Type: AWS::EC2::Subnet
    Properties:
      VpcId:
        Ref: ServerlessVPC
      AvailabilityZone: ${self:provider.region}a
      CidrBlock: ${self:custom.AURORA.VPC_CIDR}.0.3.0/24
  ServerlessPrivateSubnetB:
    DependsOn: ServerlessVPC
    Type: AWS::EC2::Subnet
    Properties:
      VpcId:
        Ref: ServerlessVPC
      AvailabilityZone: ${self:provider.region}b
      CidrBlock: ${self:custom.AURORA.VPC_CIDR}.0.4.0/24
  ServerlessPrivateSubnetC:
    DependsOn: ServerlessVPC
    Type: AWS::EC2::Subnet
    Properties:
      VpcId:
        Ref: ServerlessVPC
      AvailabilityZone: ${self:provider.region}c
      CidrBlock: ${self:custom.AURORA.VPC_CIDR}.0.5.0/24