#Title: site/routes.tf                                                                                                   
# Description: Route tables for subnets                                                                              
                                                                                                                     
####-- Routes --####                                                                                                 
                                                                                                                     
##-- Public Subnet Routes --##                                                                                       
                                                                                                                     
# Public Route Table - Default Route to Internet Gateway                                                             
resource "aws_route_table" "rt_public" {                                                                             
  vpc_id = "${aws_vpc.myvpc.id}"                                                                                     
                                                                                                                     
  route {                                                                                                            
    cidr_block = "0.0.0.0/0"                                                                                         
    gateway_id = "${aws_internet_gateway.myigw.id}"                                                                  
  }                                                                                                                  
                                                                                                                     
  tags {                                                                                                             
    Name = "rt_public"                                                                                               
  }                                                                                                                  
}                                                                                                                    
                                                                                                                     
# Associate Subnet Public 01 with Route Table                                                                        
resource "aws_route_table_association" "rt_assoc_public01" {                                                         
  subnet_id = "${aws_subnet.subnet01-public.id}"                                                                     
  route_table_id = "${aws_route_table.rt_public.id}"                                                                 
}                                                                                                                    
                                                                                                                     
# Associate Subnet Public 02 with Route Table                                                                        
resource "aws_route_table_association" "rt_assoc_public02" {                                                         
  subnet_id = "${aws_subnet.subnet02-public.id}"                                                                     
  route_table_id = "${aws_route_table.rt_public.id}"                                                                 
}                                                                                                                    
                                                                                                                     
# Associate Subnet Public 03 with Route Table                                                                        
resource "aws_route_table_association" "rt_assoc_public03" {                                                         
  subnet_id = "${aws_subnet.subnet03-public.id}"                                                                     
  route_table_id = "${aws_route_table.rt_public.id}"                                                                 
}

##-- Private Subnet Routes --##                                                                                      
                                                                                                                     
# Private Route Tables - Default Route to NAT GW in each AZ                                                          
resource "aws_route_table" "rt_private01" {                                                                          
  vpc_id = "${aws_vpc.myvpc.id}"                                                                                     
                                                                                                                     
  route {
    cidr_block = "0.0.0.0/0"
    nat_gateway_id = "${aws_nat_gateway.nat_gw01.id}"
  }

  tags {
    Name = "rt_private01"
  }
}

resource "aws_route_table" "rt_private02" {
  vpc_id = "${aws_vpc.myvpc.id}"

  route {
    cidr_block = "0.0.0.0/0"
    nat_gateway_id = "${aws_nat_gateway.nat_gw02.id}"
  }

  tags {
    Name = "rt_private02"
  }
}

resource "aws_route_table" "rt_private03" {
  vpc_id = "${aws_vpc.myvpc.id}"

  route {
    cidr_block = "0.0.0.0/0"
    nat_gateway_id = "${aws_nat_gateway.nat_gw03.id}"
  }

  tags {
    Name = "rt_private03"
  }
}

# Associate Subnet Private 01 with Route Table
resource "aws_route_table_association" "rt_assoc_private01" {
  subnet_id = "${aws_subnet.subnet01-private.id}"
  route_table_id = "${aws_route_table.rt_private01.id}"
}

# Associate Subnet Private 02 with Route Table
resource "aws_route_table_association" "rt_assoc_private02" {                                                       
  subnet_id = "${aws_subnet.subnet02-private.id}"
  route_table_id = "${aws_route_table.rt_private02.id}"
}

# Associate Subnet Private 03 with Route Table
resource "aws_route_table_association" "rt_assoc_private03" {                                                       
  subnet_id = "${aws_subnet.subnet03-private.id}"
  route_table_id = "${aws_route_table.rt_private03.id}"
}