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| 1 | +# Create a VPC |
| 2 | +resource "aws_vpc" "main" { |
| 3 | + cidr_block = "10.0.0.0/16" |
| 4 | + enable_dns_hostnames = true |
| 5 | +} |
| 6 | + |
| 7 | +# Create Subnet 1 |
| 8 | +resource "aws_subnet" "subnet_1" { |
| 9 | + vpc_id = aws_vpc.main.id |
| 10 | + cidr_block = "10.0.0.0/20" |
| 11 | + availability_zone = "eu-west-2a" |
| 12 | + map_public_ip_on_launch = true |
| 13 | +} |
| 14 | + |
| 15 | +# Create Subnet 2 |
| 16 | +resource "aws_subnet" "subnet_2" { |
| 17 | + vpc_id = aws_vpc.main.id |
| 18 | + cidr_block = "10.0.16.0/20" # Updated CIDR to prevent overlap with Subnet 1 |
| 19 | + availability_zone = "eu-west-2b" |
| 20 | + map_public_ip_on_launch = true |
| 21 | +} |
| 22 | + |
| 23 | +# Create Subnet 3 |
| 24 | +resource "aws_subnet" "subnet_3" { |
| 25 | + vpc_id = aws_vpc.main.id |
| 26 | + cidr_block = "10.0.32.0/20" # Updated CIDR to prevent overlap with Subnet 1 |
| 27 | + availability_zone = "eu-west-2c" |
| 28 | + map_public_ip_on_launch = true |
| 29 | +} |
| 30 | + |
| 31 | +# Create an Internet Gateway |
| 32 | +resource "aws_internet_gateway" "internet_gw" { |
| 33 | + vpc_id = aws_vpc.main.id |
| 34 | +} |
| 35 | + |
| 36 | +# Create a Route Table |
| 37 | +resource "aws_route_table" "route_table" { |
| 38 | + vpc_id = aws_vpc.main.id |
| 39 | + |
| 40 | + route { |
| 41 | + cidr_block = "0.0.0.0/0" |
| 42 | + gateway_id = aws_internet_gateway.internet_gw.id |
| 43 | + } |
| 44 | + |
| 45 | + route { |
| 46 | + cidr_block = "10.0.0.0/16" |
| 47 | + gateway_id = "local" |
| 48 | + } |
| 49 | +} |
| 50 | + |
| 51 | +resource "aws_route_table_association" "subnet_1_association" { |
| 52 | + subnet_id = aws_subnet.subnet_1.id |
| 53 | + route_table_id = aws_route_table.route_table.id |
| 54 | +} |
| 55 | +resource "aws_route_table_association" "subnet_2_association" { |
| 56 | + subnet_id = aws_subnet.subnet_2.id |
| 57 | + route_table_id = aws_route_table.route_table.id |
| 58 | +} |
| 59 | +resource "aws_route_table_association" "subnet_3_association" { |
| 60 | + subnet_id = aws_subnet.subnet_3.id |
| 61 | + route_table_id = aws_route_table.route_table.id |
| 62 | +} |
| 63 | + |
| 64 | +module "eks" { |
| 65 | + source = "terraform-aws-modules/eks/aws" |
| 66 | + version = "~> 19.0" |
| 67 | + |
| 68 | + cluster_name = "devops-capstone-project" |
| 69 | + cluster_version = "1.27" |
| 70 | + |
| 71 | + cluster_endpoint_public_access = true |
| 72 | + |
| 73 | + vpc_id = aws_vpc.main.id |
| 74 | + subnet_ids = [aws_subnet.subnet_1.id, aws_subnet.subnet_2.id, aws_subnet.subnet_3.id] |
| 75 | + control_plane_subnet_ids = [aws_subnet.subnet_1.id, aws_subnet.subnet_2.id, aws_subnet.subnet_3.id] |
| 76 | + |
| 77 | + eks_managed_node_groups = { |
| 78 | + green = { |
| 79 | + min_size = 1 |
| 80 | + max_size = 1 |
| 81 | + desired_size = 1 |
| 82 | + instance_types = ["t3.medium"] |
| 83 | + } |
| 84 | + } |
| 85 | +} |
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