feat(nginx): 增加默认404 503页面

apps/infra/net/nginx/helmchart.yaml

@@ -30,6 +30,8 @@ spec:
       config:
         use-forwarded-headers: "true"
         allow-snippet-annotations: "true"
+        # 自定义错误页面
+        custom-http-errors: "404,503"
         # 缓存配置
         http-snippet: |
           proxy_cache_path /tmp/nginx-cache levels=1:2 keys_zone=cache:2m max_size=100m inactive=7d use_temp_path=off;
@@ -114,3 +116,19 @@ spec:
         - name: crowdsec-bouncer-plugin
           mountPath: /etc/nginx/lua/plugins/crowdsec
           subPath: crowdsec
+    defaultBackend:
+      enabled: true
+      image:
+        registry: registry.k8s.io
+        image: ingress-nginx/custom-error-pages
+        tag: v1.0.1
+      extraVolumes:
+        - name: custom-html
+          configMap:
+            name: custom-html
+      extraVolumeMounts:
+        - name: custom-html
+          mountPath: /www
+      # 和controller部署同一节点
+      nodeSelector:
+        svccontroller.k3s.cattle.io/enablelb: "true"