From 3c6207bb45aa5e2406836b60bf7968df42879fae Mon Sep 17 00:00:00 2001
From: amelkonyan <armen.melkonyan90@gmail.com>
Date: Tue, 28 Jan 2025 22:39:40 +0400
Subject: [PATCH] MO-1098 added actions-runner-controller to k8s-addons module

---
 .../modules/k8s-addons/eks-github-runner.tf   | 175 ++++++++++++++++++
 .../modules/k8s-addons/helm-releases.yaml     |   6 +
 2 files changed, 181 insertions(+)
 create mode 100644 terraform/modules/k8s-addons/eks-github-runner.tf

diff --git a/terraform/modules/k8s-addons/eks-github-runner.tf b/terraform/modules/k8s-addons/eks-github-runner.tf
new file mode 100644
index 0000000..d68e109
--- /dev/null
+++ b/terraform/modules/k8s-addons/eks-github-runner.tf
@@ -0,0 +1,175 @@
+locals {
+  github_runner = {
+    name          = local.helm_releases[index(local.helm_releases.*.id, "github-runner")].id
+    enabled       = local.helm_releases[index(local.helm_releases.*.id, "github-runner")].enabled
+    chart         = local.helm_releases[index(local.helm_releases.*.id, "github-runner")].chart
+    repository    = local.helm_releases[index(local.helm_releases.*.id, "github-runner")].repository
+    chart_version = local.helm_releases[index(local.helm_releases.*.id, "github-runner")].chart_version
+    namespace     = local.helm_releases[index(local.helm_releases.*.id, "github-runner")].namespace
+  }
+  github_runner_registration_token = lookup(jsondecode(data.aws_secretsmanager_secret_version.infra.secret_string), "github_runner_registration_token", "")
+  github_runner_values             = <<VALUES
+authSecret:
+  annotations:
+    github_token: ${local.github_runner_registration_token}
+serviceAccount:
+  name: dev-runner-sa
+  annotations:
+    eks.amazonaws.com/role-arn: ${local.github_runner.enabled ? module.aws_iam_github_runner[0].role_arn : ""}
+   
+VALUES
+}
+
+resource "kubernetes_service_account" "dev_runner_sa" {
+  metadata {
+    name      = "dev-runner-sa"
+    namespace = "dev"
+  }
+}
+
+resource "kubernetes_role" "dev_runner_role" {
+  metadata {
+    name      = "dev-runner-role"
+    namespace = "dev"
+  }
+
+  rule {
+    api_groups = [""]
+    resources  = ["pods", "services", "configmaps"]
+    verbs      = ["get", "list", "watch", "create", "update", "delete"]
+  }
+}
+
+resource "kubernetes_role_binding" "dev_runner_rolebinding" {
+  metadata {
+    name      = "dev-runner-rolebinding"
+    namespace = "dev"
+  }
+
+  subject {
+    kind      = "ServiceAccount"
+    name      = kubernetes_service_account.dev_runner_sa.metadata[0].name
+    namespace = "dev"
+  }
+
+  role_ref {
+    kind      = "Role"
+    name      = kubernetes_role.dev_runner_role.metadata[0].name
+    api_group = "rbac.authorization.k8s.io"
+  }
+}
+
+module "github_runner_namespace" {
+  count = local.github_runner.enabled ? 1 : 0
+
+  source = "../eks-kubernetes-namespace"
+  name   = "github-runner"
+  network_policies = [
+    {
+      name         = "default-deny"
+      policy_types = ["Ingress", "Egress"]
+      pod_selector = {}
+    },
+    {
+      name         = "allow-this-namespace"
+      policy_types = ["Ingress"]
+      pod_selector = {}
+      ingress = {
+        from = [
+          {
+            namespace_selector = {
+              match_labels = {
+                name = "github-runner"
+              }
+            }
+          }
+        ]
+      }
+    },
+    {
+      name         = "allow-egress"
+      policy_types = ["Egress"]
+      pod_selector = {}
+      egress = {
+        to = [
+          {
+            ip_block = {
+              cidr = "0.0.0.0/0"
+              except = [
+                "169.254.169.254/32"
+              ]
+            }
+          }
+        ]
+      }
+    }
+  ]
+}
+
+# resource "kubernetes_manifest" "runner_deployment" {
+#   depends_on = [helm_release.github_runner]
+#   manifest = {
+#     apiVersion = "actions.summerwind.dev/v1alpha1"
+#     kind       = "RunnerDeployment"
+#     metadata = {
+#       name      = "dev-runner"
+#       namespace = "dev"
+#     }
+#     spec = {
+#       replicas = 1
+#       template = {
+#         spec = {
+#           nodeSelector = {
+#             "eks.amazonaws.com/capacity-type" = "SPOT"
+#           }
+#         }
+#       }
+#     }
+#   }
+# }
+
+module "aws_iam_github_runner" {
+  count = local.github_runner.enabled ? 1 : 0
+
+  source            = "../aws-iam-eks-trusted"
+  name              = "${local.name}-${local.gitlab_runner.name}"
+  region            = local.region
+  oidc_provider_arn = local.eks_oidc_provider_arn
+  policy = jsonencode({
+    "Version" : "2012-10-17",
+    "Statement" : [
+      {
+        "Effect" : "Allow",
+        "Action" : [
+          "ecr:GetAuthorizationToken",
+          "ecr:GetDownloadUrlForLayer",
+          "ecr:BatchGetImage",
+          "ecr:BatchCheckLayerAvailability",
+          "ecr:PutImage",
+          "ecr:InitiateLayerUpload",
+          "ecr:UploadLayerPart",
+          "ecr:CompleteLayerUpload",
+          "ecr:ListTagsForResource",
+          "ecr:DescribeImageScanFindings",
+          "ecr:DescribeImages"
+        ],
+        "Resource" : "*"
+      }
+    ]
+  })
+}
+
+resource "helm_release" "github_runner" {
+  count = local.github_runner.enabled ? 1 : 0
+
+  name        = local.github_runner.name
+  chart       = local.github_runner.chart
+  repository  = local.github_runner.repository
+  version     = local.github_runner.chart_version
+  namespace   = module.github_runner_namespace[count.index].name
+  max_history = var.helm_release_history_size
+
+  values = [
+    local.github_runner_values
+  ]
+}
diff --git a/terraform/modules/k8s-addons/helm-releases.yaml b/terraform/modules/k8s-addons/helm-releases.yaml
index 16710c9..a89cc98 100644
--- a/terraform/modules/k8s-addons/helm-releases.yaml
+++ b/terraform/modules/k8s-addons/helm-releases.yaml
@@ -95,3 +95,9 @@ releases:
     repository: https://victoriametrics.github.io/helm-charts
     chart_version: 0.24.1
     namespace: monitoring
+  - id: github-runner
+    enabled: true
+    chart: actions-runner-controller
+    repository: https://actions-runner-controller.github.io/actions-runner-controller
+    chart_version: 0.23.7
+    namespace: github-runner
\ No newline at end of file