From 6ae82ed1834b7d8b00f4699cc0922c2268fd9f4a Mon Sep 17 00:00:00 2001
From: ArgoCD Setup <argocd@kube.quest>
Date: Sat, 14 Mar 2026 14:01:12 -0300
Subject: [PATCH] fix(aula-08): adicionar draining-node-pool com CAX11 no
 cluster-autoscaler

O autoscaler Hetzner cria internamente um draining-node-pool que
usava cx11 como tipo default. Como a Hetzner descontinuou o cx11,
o lookup falhava e quebrava o loop principal do autoscaler, impedindo
qualquer scale-up de nodes.

Adicionado --nodes=0:0:CAX11:nbg1:draining-node-pool e nodeConfig
correspondente no cluster-config para resolver o erro.
---
 aula-08/cluster-autoscaler.yaml | 4 ++++
 aula-08/setup.sh                | 3 +++
 2 files changed, 7 insertions(+)

diff --git a/aula-08/cluster-autoscaler.yaml b/aula-08/cluster-autoscaler.yaml
index 6f7d395..e343009 100644
--- a/aula-08/cluster-autoscaler.yaml
+++ b/aula-08/cluster-autoscaler.yaml
@@ -137,6 +137,10 @@ spec:
             # Escala 0-1 sob demanda, taint "dedicated=builds:NoSchedule"
             - --nodes=0:1:CAX31:nbg1:build-pool
             #
+            # draining-node-pool: Pool interno do autoscaler para nodes em drenagem
+            # Precisa de tipo válido (CAX11) senão o autoscaler quebra
+            - --nodes=0:0:CAX11:nbg1:draining-node-pool
+            #
             # CONFIGURAÇÕES DE SCALE DOWN:
             #
             - --scale-down-enabled=true
diff --git a/aula-08/setup.sh b/aula-08/setup.sh
index a618a7a..ff752e3 100755
--- a/aula-08/setup.sh
+++ b/aula-08/setup.sh
@@ -513,6 +513,9 @@ CLUSTER_CONFIG_JSON=$(cat <<CCEOF
           "effect": "NoSchedule"
         }
       ]
+    },
+    "draining-node-pool": {
+      "cloudInit": "$WORKER_CONFIG_BASE64"
     }
   }
 }