infra(kapsule): add gitlab and ci-build node pools

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

infra/live/production/kapsule/terragrunt.hcl

@@ -19,4 +19,13 @@ inputs = {
   enable_gpu_inference_pool = true
   gpu_inference_type        = "L4-1-24G"
   gpu_inference_max_size    = 1
+
+  # GitLab CE pool (dedicated for GitLab + Runner manager)
+  enable_gitlab_pool = true
+  gitlab_type        = "DEV1-L"
+
+  # CI build pool (ephemeral runner pods, scale-to-zero)
+  enable_ci_build_pool = true
+  ci_build_type        = "GP1-XS"
+  ci_build_max_size    = 2
 }

infra/modules/kapsule/main.tf

@@ -90,3 +90,35 @@ resource "scaleway_k8s_pool" "gpu_inference" {
     ignore_changes = [size]
   }
 }
+
+# GitLab CE node pool (dedicated DEV1-L for GitLab + Runner manager)
+resource "scaleway_k8s_pool" "gitlab" {
+  count       = var.enable_gitlab_pool ? 1 : 0
+  cluster_id  = scaleway_k8s_cluster.foxhunt.id
+  name        = "gitlab"
+  node_type   = var.gitlab_type
+  size        = 1
+  min_size    = 1
+  max_size    = 1
+  autoscaling = false
+  autohealing = true
+  region      = var.region
+}
+
+# CI build pod pool (scale-to-zero for ephemeral GitLab Runner build pods)
+resource "scaleway_k8s_pool" "ci_build" {
+  count       = var.enable_ci_build_pool ? 1 : 0
+  cluster_id  = scaleway_k8s_cluster.foxhunt.id
+  name        = "ci-build"
+  node_type   = var.ci_build_type
+  size        = 0
+  min_size    = 0
+  max_size    = var.ci_build_max_size
+  autoscaling = true
+  autohealing = true
+  region      = var.region
+
+  lifecycle {
+    ignore_changes = [size]
+  }
+}

infra/modules/kapsule/outputs.tf

@@ -33,3 +33,13 @@ output "gpu_inference_pool_id" {
   description = "ID of the GPU inference node pool"
   value       = var.enable_gpu_inference_pool ? scaleway_k8s_pool.gpu_inference[0].id : ""
 }
+
+output "gitlab_pool_id" {
+  description = "ID of the GitLab node pool"
+  value       = var.enable_gitlab_pool ? scaleway_k8s_pool.gitlab[0].id : ""
+}
+
+output "ci_build_pool_id" {
+  description = "ID of the CI build node pool"
+  value       = var.enable_ci_build_pool ? scaleway_k8s_pool.ci_build[0].id : ""
+}

infra/modules/kapsule/variables.tf

@@ -68,3 +68,33 @@ variable "gpu_inference_max_size" {
   type        = number
   default     = 1
 }
+
+variable "enable_gitlab_pool" {
+  description = "Create dedicated node pool for GitLab CE"
+  type        = bool
+  default     = false
+}
+
+variable "gitlab_type" {
+  description = "Instance type for the GitLab node pool"
+  type        = string
+  default     = "DEV1-L"
+}
+
+variable "enable_ci_build_pool" {
+  description = "Create dedicated node pool for CI build pods"
+  type        = bool
+  default     = false
+}
+
+variable "ci_build_type" {
+  description = "Instance type for the CI build node pool"
+  type        = string
+  default     = "GP1-XS"
+}
+
+variable "ci_build_max_size" {
+  description = "Maximum number of nodes in the CI build pool"
+  type        = number
+  default     = 2
+}