diff --git a/apps/api/Dockerfile b/apps/api/Dockerfile
index 220b66a4..da9a44c6 100644
--- a/apps/api/Dockerfile
+++ b/apps/api/Dockerfile
@@ -55,6 +55,8 @@ COPY apps/api/src/ ./src/
 COPY apps/api/models.json ./models.json
 # 2026-04-09 ogt: 規則引擎配置 — alert_rule_engine.py 從此檔載入規則
 COPY apps/api/alert_rules.yaml ./alert_rules.yaml
+# 2026-04-10 Claude Sonnet 4.6: drift_detector 需要 k8s/ YAML 做 Git state 比對
+COPY k8s/ ./k8s/
 
 # Install openssh-client — SSH_COMMAND Playbook 執行路徑需要 ssh binary
 # (2026-04-09 Claude Sonnet 4.6 Asia/Taipei, Bug #6 修正 — python:3.11-slim 無 openssh-client)