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2.vpc-components.tf
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2.vpc-components.tf
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######################################## SUBNETS ######################################
resource "aws_subnet" "private_sub_a" {
vpc_id = aws_vpc.main.id
cidr_block = "10.0.0.0/19"
availability_zone = "${var.region}a"
tags = {
"Name" = "${var.projname_short}-private-${var.region}a"
"kubernetes.io/role/internal-elb" = "1"
"kubernetes.io/cluster/${var.projname_short}-cluster" = "owned"
}
}
resource "aws_subnet" "private_sub_b" {
vpc_id = aws_vpc.main.id
cidr_block = "10.0.32.0/19"
availability_zone = "${var.region}b"
tags = {
"Name" = "${var.projname_short}-private-${var.region}b"
"kubernetes.io/role/internal-elb" = "1"
"kubernetes.io/cluster${var.projname_short}-cluster" = "owned"
}
}
resource "aws_subnet" "public_sub_a" {
vpc_id = aws_vpc.main.id
cidr_block = "10.0.64.0/19"
availability_zone = "${var.region}a"
map_public_ip_on_launch = true
tags = {
"Name" = "${var.projname_short}-public-${var.region}a"
"kubernetes.io/role/elb" = "1"
"kubernetes.io/cluster/${var.projname_short}-cluster" = "owned"
}
}
resource "aws_subnet" "public_sub_b" {
vpc_id = aws_vpc.main.id
cidr_block = "10.0.96.0/19"
availability_zone = "${var.region}b"
map_public_ip_on_launch = true
tags = {
"Name" = "${var.projname_short}-public-${var.region}b"
"kubernetes.io/role/elb" = "1"
"kubernetes.io/cluster/${var.projname_short}-cluster" = "owned"
}
}
######################################## GATEWAYS ######################################
resource "aws_internet_gateway" "igw" {
vpc_id = aws_vpc.main.id
tags = {
Name = "${var.projname_short}-igw"
}
}
# NAT
resource "aws_eip" "nat" {
vpc = true
tags = {
Name = "${var.projname_short}-nat-eip"
}
}
resource "aws_nat_gateway" "nat" {
allocation_id = aws_eip.nat.id
subnet_id = aws_subnet.public_sub_a.id
tags = {
Name = "${var.projname_short}-nat"
}
depends_on = [aws_internet_gateway.igw]
}
######################################## ROUTES ######################################
resource "aws_route_table" "private" {
vpc_id = aws_vpc.main.id
route {
cidr_block = "0.0.0.0/0"
nat_gateway_id = aws_nat_gateway.nat.id
}
tags = {
Name = "${var.projname_short}-private-route"
}
}
resource "aws_route_table" "public" {
vpc_id = aws_vpc.main.id
route {
cidr_block = "0.0.0.0/0"
gateway_id = aws_internet_gateway.igw.id
}
tags = {
Name = "${var.projname_short}-public-route"
}
}
resource "aws_route_table_association" "private_sub_a" {
subnet_id = aws_subnet.private_sub_a.id
route_table_id = aws_route_table.private.id
}
resource "aws_route_table_association" "private_sub_b" {
subnet_id = aws_subnet.private_sub_b.id
route_table_id = aws_route_table.private.id
}
resource "aws_route_table_association" "public_sub_a" {
subnet_id = aws_subnet.public_sub_a.id
route_table_id = aws_route_table.public.id
}
resource "aws_route_table_association" "public_sub_b" {
subnet_id = aws_subnet.public_sub_b.id
route_table_id = aws_route_table.public.id
}
######################################## OUTPUTS ######################################
output "region" {
value = var.region
}