infra/stacks/_template/main.tf.example

# =============================================================================
# Stack Template — Copy this directory to stacks/<your-app>/ and customize.
# Then submit a PR to the infra repo.
# =============================================================================
#
# Prerequisites:
#   1. You are a namespace-owner in k8s_users (Vault KV secret/platform)
#   2. Your namespace already exists (created by vault stack)
#   3. You have Vault CLI access: vault login -method=oidc
#
# Steps:
#   1. cp -r stacks/_template stacks/myapp
#   2. mv stacks/myapp/main.tf.example stacks/myapp/main.tf
#   3. Search-replace <placeholders> below
#   4. Store secrets: vault kv put secret/<your-username>/myapp KEY=value
#   5. git checkout -b feat/myapp && git push
#   6. Open PR, get reviewed, merge
#   7. Admin runs: cd stacks/myapp && terragrunt apply
# =============================================================================

variable "tls_secret_name" {
  type      = string
  sensitive = true
}

# NOTE: Your namespace is auto-created by the vault stack from k8s_users.
# Only add a kubernetes_namespace resource if you need a SEPARATE namespace
# for this specific app (not your user namespace).

module "tls_secret" {
  source          = "../../modules/kubernetes/setup_tls_secret"
  namespace       = "<your-namespace>"  # e.g., "anca"
  tls_secret_name = var.tls_secret_name
}

resource "kubernetes_deployment" "app" {
  metadata {
    name      = "<app-name>"
    namespace = "<your-namespace>"
  }
  spec {
    replicas = 1
    selector {
      match_labels = { app = "<app-name>" }
    }
    template {
      metadata {
        labels = { app = "<app-name>" }
      }
      spec {
        container {
          name  = "<app-name>"
          image = "<dockerhub-user>/<app-name>:<tag>"
          port {
            container_port = 8080  # Change to your app's port
          }
          resources {
            requests = { cpu = "10m", memory = "256Mi" }
            limits   = { memory = "256Mi" }
          }
        }
      }
    }
  }
  lifecycle {
    ignore_changes = [spec[0].template[0].spec[0].dns_config]
  }
}

resource "kubernetes_service" "app" {
  metadata {
    name      = "<app-name>"
    namespace = "<your-namespace>"
  }
  spec {
    selector = { app = "<app-name>" }
    port {
      port        = 80
      target_port = 8080  # Match container_port above
    }
  }
}

module "ingress" {
  source          = "../../modules/kubernetes/ingress_factory"
  namespace       = "<your-namespace>"
  name            = "<app-name>"
  tls_secret_name = var.tls_secret_name
  dns_type        = "proxied"  # "proxied" (Cloudflare CDN), "non-proxied" (direct A/AAAA), or "none"
  protected       = false      # Set true to require Authentik login
}