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VPC: Add private subnet tag for alb #2

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VPC: Add private subnet tag for alb #2

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03f6544
VPC: Add private subnet tag for alb
GrigorovskyA Sep 22, 2021
26929f7
Added feature to merge subnets tags with additional tags from variables
GrigorovskyA Sep 23, 2021
67dd4ec
Merge branch 'master' into feature/add_private_subnet_tag
RustamGimadiev Apr 1, 2022
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21 changes: 15 additions & 6 deletions README.md
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Original file line number Diff line number Diff line change
Expand Up @@ -7,14 +7,23 @@ VPC module for creating networks, load balancers and gateways
- `Choice network CIDR` - change variable network to change CIDR (default 10.10.0.0/16)

## Usage
```
``` hcl
module "network" {
source = "https://github.com/provectus/sak-vpc.git"

availability_zones = var.availability_zones
environment = local.environment
project = local.project
cluster_name = local.cluster_name
network = 10
availability_zones = var.availability_zones
environment = local.environment
project = local.project
cluster_name = local.cluster_name
network = 10

additional_private_subnet_tags = {
"kubernetes.io/cluster/${local.cluster_name}" = "shared"
"kubernetes.io/role/internal-elb" = ""
}

additional_public_subnet_tags = {
"kubernetes.io/cluster/${local.cluster_name}" = "shared"
}
}
```
45 changes: 28 additions & 17 deletions main.tf
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Original file line number Diff line number Diff line change
@@ -1,8 +1,22 @@
locals {
zones = coalescelist(var.availability_zones, data.aws_availability_zones.available.names)
cidr = var.cidr != null ? var.cidr : "10.${var.network}.0.0/16"
private = var.cidr != null ? [for i, z in local.zones : cidrsubnet(local.cidr, var.network_delimiter, i)] : data.template_file.private.*.rendered
public = var.cidr != null ? [for i, z in local.zones : cidrsubnet(local.cidr, var.network_delimiter, pow(2, var.network_delimiter) - i)] : data.template_file.public.*.rendered
zones = coalescelist(var.availability_zones, data.aws_availability_zones.available.names)
cidr = var.cidr != null ? var.cidr : "10.${var.network}.0.0/16"
private = var.cidr != null ? [for i, z in local.zones : cidrsubnet(local.cidr, var.network_delimiter, i)] : data.template_file.private.*.rendered
public = var.cidr != null ? [for i, z in local.zones : cidrsubnet(local.cidr, var.network_delimiter, pow(2, var.network_delimiter) - i)] : data.template_file.public.*.rendered

public_subnet_tags = {
Name = "${var.environment}-${var.cluster_name}-public"
KubernetesCluster = var.cluster_name
Environment = var.environment
Project = var.project
"kubernetes.io/cluster/${var.cluster_name}" = "owned"
"kubernetes.io/role/elb" = ""
}

private_subnet_tags = {
Name = "${var.environment}-${var.cluster_name}-private"
"kubernetes.io/cluster/${var.cluster_name}" = "owned"
}
}

data "aws_availability_zones" "available" {}
Expand Down Expand Up @@ -35,20 +49,17 @@ module "vpc" {
enable_dns_hostnames = true
enable_dns_support = true

public_subnet_tags = {
Name = "${var.environment}-${var.cluster_name}-public"
KubernetesCluster = var.cluster_name
Environment = var.environment
Project = var.project
"kubernetes.io/role/elb" = ""
"kubernetes.io/cluster/${var.cluster_name}" = "owned"
"kubernetes.io/cluster/${var.cluster_name}" = "shared"
}
public_subnet_tags = (
length(var.additional_public_subnet_tags) > 0
? merge(local.public_subnet_tags, var.additional_public_subnet_tags)
: local.public_subnet_tags
)

private_subnet_tags = {
Name = "${var.environment}-${var.cluster_name}-private"
"kubernetes.io/cluster/${var.cluster_name}" = "shared"
}
private_subnet_tags = (
length(var.additional_private_subnet_tags) > 0
? merge(local.private_subnet_tags, var.additional_private_subnet_tags)
: local.private_subnet_tags
)

tags = {
Name = "${var.environment}-${var.cluster_name}"
Expand Down
12 changes: 12 additions & 0 deletions variables.tf
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Expand Up @@ -45,3 +45,15 @@ variable "availability_zones" {
type = list(any)
default = []
}

variable "additional_public_subnet_tags" {
type = map(string)
default = {}
description = "A value that will be added to default tags to public subnet"
}

variable "additional_private_subnet_tags" {
type = map(string)
default = {}
description = "A value that will be added to default tags to private subnet"
}