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* vars * cleanup * roles * code * some data resources * add region output * add auth config vars * outputs * optionals * fargate * vars * aws-auth * tools * source_security_group_ids * workers * vars docs * encryption_key_arn * encryption_key_arn * node_group_name_prefix * cleanups
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@@ -2,3 +2,5 @@ terraform 1.5.5 | |
| terraform-docs 0.16.0 | ||
| tflint 0.47.0 | ||
| pre-commit 3.3.3 | ||
| kubectl 1.28.2 | ||
| yq 4.34.1 | ||
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| @@ -0,0 +1,69 @@ | ||
| locals { | ||
| account_map = { | ||
| current = data.aws_caller_identity.current.account_id | ||
| } | ||
|
|
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| nodes_role_arns = concat(var.nodes_role_arns, [aws_iam_role.node.arn]) | ||
| nodes_map = [for arn in local.nodes_role_arns : { | ||
| rolearn = arn | ||
| username = "system:node:{{EC2PrivateDNSName}}" | ||
| groups = [ | ||
| "system:bootstrappers", | ||
| "system:nodes", | ||
| ] | ||
| }] | ||
|
|
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| fargate_role_arns = concat(var.fargate_role_arns, [aws_iam_role.fargate.arn]) | ||
| fargate_map = [for arn in local.fargate_role_arns : { | ||
| rolearn = arn | ||
| username = "system:node:{{SessionName}}" | ||
| groups = [ | ||
| "system:bootstrappers", | ||
| "system:nodes", | ||
| "system:node-proxier", | ||
| ] | ||
| }] | ||
|
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| masters_map = [for arn in var.masters_role_arns : { | ||
| rolearn = arn | ||
| username = "master:{{AccountID}}:{{SessionName}}" | ||
| groups = [ | ||
| "system:masters", | ||
| ] | ||
| }] | ||
| } | ||
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| resource "kubernetes_config_map" "aws_auth" { | ||
| metadata { | ||
| name = "aws-auth" | ||
| namespace = "kube-system" | ||
| } | ||
| data = { | ||
| mapAccounts = yamlencode([ | ||
| for account_id in var.auth_map_accounts : lookup(local.account_map, account_id, account_id) | ||
| ]) | ||
| mapRoles = yamlencode(flatten([ | ||
| local.nodes_map, | ||
| local.fargate_map, | ||
| local.masters_map, [ | ||
| for role in var.auth_map_roles : { | ||
| rolearn = role.arn | ||
| username = role.username | ||
| groups = role.groups | ||
| } | ||
| ] | ||
| ])) | ||
| mapUsers = yamlencode([ | ||
| for user in var.auth_map_users : { | ||
| userarn = user.arn | ||
| username = user.username | ||
| groups = user.groups | ||
| } | ||
| ]) | ||
| } | ||
|
|
||
| depends_on = [ | ||
| aws_eks_cluster.main, | ||
| ] | ||
|
|
||
| } |
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| @@ -0,0 +1,98 @@ | ||
| locals { | ||
| fixed_names = true | ||
| } | ||
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| resource "aws_eks_node_group" "main" { | ||
| for_each = var.node_groups | ||
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| node_group_name = local.fixed_names ? each.key : null | ||
| node_group_name_prefix = local.fixed_names ? null : each.key | ||
| cluster_name = aws_eks_cluster.main.name | ||
| node_role_arn = aws_iam_role.node.arn | ||
| subnet_ids = coalesce(each.value.subnet_ids, var.node_group_subnet_ids) | ||
| tags = merge(var.common_tags, { | ||
| Name = each.key | ||
| }) | ||
|
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| scaling_config { | ||
| min_size = each.value.min_size | ||
| max_size = each.value.max_size | ||
| desired_size = each.value.desired_size | ||
| } | ||
|
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| update_config { | ||
| max_unavailable = null | ||
| max_unavailable_percentage = 10 | ||
| } | ||
|
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| ami_type = each.value.ami_type | ||
| capacity_type = each.value.capacity_type | ||
| disk_size = each.value.disk_size | ||
| instance_types = [each.value.instance_type] | ||
| labels = each.value.labels | ||
|
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| # launch_template { | ||
| # id = each.value.launch_template_id | ||
| # name = each.value.launch_template_name | ||
| # version = each.value.launch_template_version | ||
| # } | ||
|
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| dynamic "remote_access" { | ||
| for_each = var.ec2_ssh_key != null ? [1] : [] | ||
| content { | ||
| ec2_ssh_key = var.ec2_ssh_key | ||
| source_security_group_ids = var.source_security_group_ids | ||
| } | ||
| } | ||
|
|
||
| dynamic "taint" { | ||
| for_each = each.value.taints | ||
| content { | ||
| key = taint.value.key | ||
| value = taint.value.value | ||
| effect = taint.value.effect | ||
| } | ||
| } | ||
|
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| lifecycle { | ||
| # only if node_group_name_prefix is in use, but (local.fixed_names == false) does not work.. | ||
| create_before_destroy = true | ||
| ignore_changes = [ | ||
| scaling_config[0].desired_size, # needed for autoscaling to work | ||
| ] | ||
| } | ||
|
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| depends_on = [ | ||
| aws_eks_cluster.main, | ||
| aws_iam_role.node, | ||
| aws_iam_role_policy_attachment.eks_worker_node_policy, | ||
| kubernetes_config_map.aws_auth, | ||
| ] | ||
|
|
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| } | ||
|
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|
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| resource "aws_eks_fargate_profile" "main" { | ||
| for_each = var.fargate_profiles | ||
|
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| fargate_profile_name = each.key | ||
| cluster_name = aws_eks_cluster.main.name | ||
| pod_execution_role_arn = aws_iam_role.fargate.arn | ||
| subnet_ids = coalesce(each.value.subnet_ids, var.fargate_subnet_ids) | ||
| tags = merge(var.common_tags, { | ||
| Name = each.key | ||
| }) | ||
|
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| selector { | ||
| namespace = each.value.namespace | ||
| labels = each.value.labels | ||
| } | ||
|
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| depends_on = [ | ||
| aws_eks_cluster.main, | ||
| aws_iam_role.fargate, | ||
| aws_iam_role_policy_attachment.eks_fargate_pod_execution_role_policy, | ||
| kubernetes_config_map.aws_auth, | ||
| ] | ||
|
|
||
| } |
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| @@ -0,0 +1,75 @@ | ||
| module "network" { | ||
| source = "github.com/opsd-io/terraform-module-aws-network" | ||
|
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| vpc_name = "k8s-test-vpc" | ||
| cidr_block = "10.100.0.0/16" | ||
|
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| public_subnet_groups = { | ||
| "public1" = { | ||
| availability_zones = { | ||
| "a" = { cidr_block = "10.100.1.0/24", nat_gateway = true } | ||
| "b" = { cidr_block = "10.100.2.0/24" } | ||
| "c" = { cidr_block = "10.100.3.0/24" } | ||
| } | ||
| } | ||
| } | ||
| private_subnet_groups = { | ||
| "nodes1" = { | ||
| nat_group_name = "public1" | ||
| availability_zones = { | ||
| "a" = { cidr_block = "10.100.101.0/24" } | ||
| "b" = { cidr_block = "10.100.102.0/24" } | ||
| "c" = { cidr_block = "10.100.103.0/24" } | ||
| } | ||
| } | ||
| "fargate1" = { | ||
| nat_group_name = "public1" | ||
| availability_zones = { | ||
| "a" = { cidr_block = "10.100.201.0/24" } | ||
| "b" = { cidr_block = "10.100.202.0/24" } | ||
| "c" = { cidr_block = "10.100.203.0/24" } | ||
| } | ||
| } | ||
| } | ||
| } | ||
|
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| module "kubernetes" { | ||
| source = "github.com/opsd-io/terraform-module-aws-kubernetes" | ||
| name = "basic-k8s-example" | ||
|
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| subnet_ids = [ | ||
| for subnet in module.network.public_subnet_groups["public1"] : subnet.id | ||
| ] | ||
|
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| node_group_subnet_ids = [ | ||
| for subnet in module.network.private_subnet_groups["nodes1"] : subnet.id | ||
| ] | ||
| node_groups = { | ||
| main = { | ||
| max_size = 9 | ||
| desired_size = 1 | ||
| disk_size = 8 | ||
| } | ||
| } | ||
|
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| fargate_subnet_ids = [ | ||
| for subnet in module.network.private_subnet_groups["fargate1"] : subnet.id | ||
| ] | ||
| fargate_profiles = { | ||
| "default-namespace" = { # default is bad, better put it "far" | ||
| namespace = "default" | ||
| } | ||
| "amazonaws-components" = { # this should put CoreDNS on fargate | ||
| namespace = "*" | ||
| labels = { "eks.amazonaws.com/component" = "*" } | ||
| } | ||
| } | ||
| } | ||
|
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| module "autoscaler" { | ||
| source = "github.com/opsd-io/terraform-module-eks-autoscaler" | ||
| cluster_region = module.kubernetes.region | ||
| cluster_name = module.kubernetes.name | ||
| openid_arn = module.kubernetes.openid_arn | ||
| openid_sub = module.kubernetes.openid_sub | ||
| } |
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