diff --git a/README.md b/README.md
index ef84c82..2b43648 100644
--- a/README.md
+++ b/README.md
@@ -72,8 +72,7 @@ ansible-playbook -i <your-inventory> deploy_observability_service.yml -l us-xhtt
 ansible-playbook -i <your-inventory> node.yml \
   -l openclaw.svc.plus,jp-xhttp.svc.plus \
   -e node_monitor_mode=push \
-  -e observability_endpoint=https://observability.svc.plus/ \
-  -e haproxy_enabled=false
+  -e observability_endpoint=https://observability.svc.plus/
 ```
 
 如果服务端已开启 ingest 基本认证，采集端也要带上同一组凭据：
@@ -85,8 +84,7 @@ ansible-playbook -i <your-inventory> node.yml \
   -e observability_endpoint=https://observability.svc.plus/ \
   -e observability_ingest_basic_auth_enabled=true \
   -e observability_ingest_basic_auth_user=ingest \
-  -e observability_ingest_basic_auth_password='<strong-password>' \
-  -e haproxy_enabled=false
+  -e observability_ingest_basic_auth_password='<strong-password>'
 ```
 
 > `node_monitor_mode=push` 会在远端主机上部署 `node_exporter + process_exporter + vector`，并把 metrics / logs 主动汇总到 `observability.svc.plus`。`vector` 固定归到采集端任务，服务端 `infra.yml` 不再默认部署它。
diff --git a/node.yml b/node.yml
index 67ec72c..dc13b4b 100755
--- a/node.yml
+++ b/node.yml
@@ -36,7 +36,6 @@
 #     ./node.yml -l openclaw.svc.plus,jp-xhttp.svc.plus \
 #       -e node_monitor_mode=push \
 #       -e observability_endpoint=https://observability.svc.plus/ \
-#       -e haproxy_enabled=false
 #
 #  Bootstrap with another admin user: (Create admin with another admin)
 #     node.yml -t node_admin       # create admin user for nodes
diff --git a/roles/haproxy/defaults/main.yml b/roles/haproxy/defaults/main.yml
index ac04c2e..170f914 100644
--- a/roles/haproxy/defaults/main.yml
+++ b/roles/haproxy/defaults/main.yml
@@ -2,7 +2,7 @@
 #-----------------------------------------------------------------
 # HAPROXY
 #-----------------------------------------------------------------
-haproxy_enabled: true             # enable haproxy on this node?
+haproxy_enabled: false            # enable haproxy on this node?
 haproxy_clean: false              # cleanup all existing haproxy config?
 haproxy_reload: true              # reload haproxy after config?
 haproxy_auth_enabled: true        # enable authentication for haproxy admin page
@@ -17,4 +17,4 @@ haproxy_services: []              # list of haproxy service to be exposed
 # PROMETHEUS (Reference)
 #-----------------------------------------------------------------
 exporter_metrics_path: /metrics   # exporter metric path, `/metrics` by default
-...
\ No newline at end of file
+...
diff --git a/roles/node_monitor/defaults/main.yml b/roles/node_monitor/defaults/main.yml
index 9245e06..d33eb99 100644
--- a/roles/node_monitor/defaults/main.yml
+++ b/roles/node_monitor/defaults/main.yml
@@ -50,7 +50,7 @@ exporter_metrics_path: /metrics   # exporter metric path
 #-----------------------------------------------------------------
 # HAPROXY (Reference)
 #-----------------------------------------------------------------
-haproxy_enabled: true             # enable haproxy on this node?
+haproxy_enabled: false            # enable haproxy on this node?
 haproxy_exporter_port: 9101       # haproxy admin/exporter port, 9101 by default
 #-----------------------------------------------------------------
 # PGSQL (Reference)