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#
# Create the VPC
# using directions from https://clouddocs.f5.com/cloud/public/v1/aws/AWS_multiNIC.html
#
## TODO Temporary local var for eks cluster name
locals {
cluster_name = format("%s-eks_cluster-%s", var.tags.prefix, var.tags.random)
}
module "vpc_min" {
count = var.create_min && !var.create_max ? 1 : 0
source = "terraform-aws-modules/vpc/aws"
name = format("%s-min-%s", var.tags.prefix, var.tags.random)
cidr = var.aws_vpc_parameters.cidr
enable_dns_hostnames = true
enable_dns_support = true
azs = var.aws_vpc_parameters.azs
# vpc public subnet used for external interface
public_subnets = [for num in range(length(var.aws_vpc_parameters.azs)) :
cidrsubnet(var.aws_vpc_parameters.cidr, 8, num + var.external_subnet_offset)
]
public_subnet_tags = {
Mode = "public"
Cluster = local.cluster_name
"kubernetes.io/role/elb" = 1
"kubernetes.io/cluster/${local.cluster_name}" = "shared"
}
# vpc private subnet used for internal
private_subnets = [
for num in range(length(var.aws_vpc_parameters.azs)) :
cidrsubnet(var.aws_vpc_parameters.cidr, 8, num + var.internal_subnet_offset)
]
private_subnet_tags = {
Mode = "private"
Cluster = format("%s-eks-%s", var.tags.prefix, var.tags.random)
"kubernetes.io/role/internal-elb" = 1
"kubernetes.io/cluster/${local.cluster_name}" = "shared"
}
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enable_nat_gateway = true
# using the database subnet method since it allows a public route
database_subnets = [
for num in range(length(var.aws_vpc_parameters.azs)) :
cidrsubnet(var.aws_vpc_parameters.cidr, 8, num + var.management_subnet_offset)
]
create_database_subnet_group = true
create_database_subnet_route_table = true
create_database_internet_gateway_route = true
tags = {
Name = format("%s-min-%s", var.tags.prefix, var.tags.random)
Terraform = "true"
Environment = var.tags.environment
}
}
module "vpc_max_public" {
count = var.create_max ? 1 : 0
source = "terraform-aws-modules/vpc/aws"
name = format("%s-max-%s", var.tags.prefix, var.tags.random)
cidr = var.aws_vpc_parameters.cidr
enable_dns_hostnames = true
enable_dns_support = true
azs = var.aws_vpc_parameters.azs
# vpc public subnet used for external interface
public_subnets = [for num in range(length(var.aws_vpc_parameters.azs)) :
cidrsubnet(var.aws_vpc_parameters.cidr, 8, num + var.external_subnet_offset)
]
public_subnet_tags = {
Mode = "public"
Cluster = local.cluster_name
"kubernetes.io/role/elb" = 1
"kubernetes.io/cluster/${local.cluster_name}" = "shared"
}
tags = {
Name = format("%s-max-public-%s", var.tags.prefix, var.tags.random)
Terraform = "true"
Environment = var.tags.environment
}
}
module "vpc_max_private" {
count = var.create_max ? 1 : 0
source = "terraform-aws-modules/vpc/aws"
name = format("%s-max-%s", var.tags.prefix, var.tags.random)
cidr = var.aws_vpc_parameters.cidr
enable_dns_hostnames = true
enable_dns_support = true
azs = var.aws_vpc_parameters.azs
# vpc private subnet used for internal
private_subnets = [
for num in range(length(var.aws_vpc_parameters.azs)) :
cidrsubnet(var.aws_vpc_parameters.cidr, 8, num + var.internal_subnet_offset)
]
private_subnet_tags = {
Mode = "private"
Cluster = format("%s-eks-%s", var.tags.prefix, var.tags.random)
"kubernetes.io/role/internal-elb" = 1
"kubernetes.io/cluster/${local.cluster_name}" = "shared"
}
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tags = {
Name = format("%s-max-private-%s", var.tags.prefix, var.tags.random)
Terraform = "true"
Environment = var.tags.environment
}
}
module "vpc_max_management" {
count = var.create_max ? 1 : 0
source = "terraform-aws-modules/vpc/aws"
name = format("%s-max-%s", var.tags.prefix, var.tags.random)
cidr = var.aws_vpc_parameters.cidr
enable_dns_hostnames = true
enable_dns_support = true
azs = var.aws_vpc_parameters.azs
public_subnets = [for num in range(length(var.aws_vpc_parameters.azs)) :
cidrsubnet(var.aws_vpc_parameters.cidr, 8, num + var.management_subnet_offset)
]
tags = {
Name = format("%s-max-mgmt-%s", var.tags.prefix, var.tags.random)
Terraform = "true"
Environment = var.tags.environment
}
}