From 365946166697eaf1746c08f65bf3d01c0bb1819b Mon Sep 17 00:00:00 2001
From: kevinlin <linjiang1205@gmail.com>
Date: Sun, 9 Oct 2022 18:13:32 +0800
Subject: [PATCH 1/3] Update reverse-proxy document for istio/envoy

---
 docs/reverse-proxy.md | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)

diff --git a/docs/reverse-proxy.md b/docs/reverse-proxy.md
index 74bbff71..4ab7ac00 100644
--- a/docs/reverse-proxy.md
+++ b/docs/reverse-proxy.md
@@ -59,3 +59,34 @@ server {
     }
 }
 ```
+
+## istio/envoy
+If you using [Istio](https://istio.io/) ingressgateway or [Envoy](https://www.envoyproxy.io/) as reverse proxy, there are some tips for you. 
+
+### Envoy
+You need add a new upgrade_type named `tailscale-control-protocol`. [see detail](https://www.envoyproxy.io/docs/envoy/latest/api-v3/extensions/filters/network/http_connection_manager/v3/http_connection_manager.proto#extensions-filters-network-http-connection-manager-v3-httpconnectionmanager-upgradeconfig)
+
+### Istio
+Same as envoy, we can use `EnvoyFilter` to add upgrade_type.
+```yaml
+apiVersion: networking.istio.io/v1alpha3
+kind: EnvoyFilter
+metadata:
+  name: headscale-behind-istio-ingress
+  namespace: istio-system
+spec:
+  configPatches:
+  - applyTo: NETWORK_FILTER
+    match:
+      listener:
+        filterChain:
+          filter:
+            name: envoy.filters.network.http_connection_manager
+    patch:
+      operation: MERGE
+      value:
+        typed_config:
+          '@type': type.googleapis.com/envoy.extensions.filters.network.http_connection_manager.v3.HttpConnectionManager
+          upgrade_configs:
+            - upgrade_type: tailscale-control-protocol
+```
\ No newline at end of file

From 06e12f7020caa2b8a2e1c43ca28f38e7915b4055 Mon Sep 17 00:00:00 2001
From: kevinlin <linjiang1205@gmail.com>
Date: Sun, 9 Oct 2022 18:17:31 +0800
Subject: [PATCH 2/3] Update: tips about warnning log

---
 docs/reverse-proxy.md | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/docs/reverse-proxy.md b/docs/reverse-proxy.md
index 4ab7ac00..2bfbcfb2 100644
--- a/docs/reverse-proxy.md
+++ b/docs/reverse-proxy.md
@@ -61,7 +61,10 @@ server {
 ```
 
 ## istio/envoy
-If you using [Istio](https://istio.io/) ingressgateway or [Envoy](https://www.envoyproxy.io/) as reverse proxy, there are some tips for you. 
+If you using [Istio](https://istio.io/) ingressgateway or [Envoy](https://www.envoyproxy.io/) as reverse proxy, there are some tips for you.  If not set, you may see some debug log in proxy as below:
+```log
+Sending local reply with details upgrade_failed
+```
 
 ### Envoy
 You need add a new upgrade_type named `tailscale-control-protocol`. [see detail](https://www.envoyproxy.io/docs/envoy/latest/api-v3/extensions/filters/network/http_connection_manager/v3/http_connection_manager.proto#extensions-filters-network-http-connection-manager-v3-httpconnectionmanager-upgradeconfig)

From 79864e01650bc0a6aa7f9ff0c76793febb16ff32 Mon Sep 17 00:00:00 2001
From: kevinlin <linjiang1205@qq.com>
Date: Sat, 15 Oct 2022 00:06:15 +0800
Subject: [PATCH 3/3] Fmt md with prettier

---
 docs/reverse-proxy.md | 35 ++++++++++++++++++++---------------
 1 file changed, 20 insertions(+), 15 deletions(-)

diff --git a/docs/reverse-proxy.md b/docs/reverse-proxy.md
index 2bfbcfb2..1c7e5804 100644
--- a/docs/reverse-proxy.md
+++ b/docs/reverse-proxy.md
@@ -61,16 +61,21 @@ server {
 ```
 
 ## istio/envoy
-If you using [Istio](https://istio.io/) ingressgateway or [Envoy](https://www.envoyproxy.io/) as reverse proxy, there are some tips for you.  If not set, you may see some debug log in proxy as below:
+
+If you using [Istio](https://istio.io/) ingressgateway or [Envoy](https://www.envoyproxy.io/) as reverse proxy, there are some tips for you. If not set, you may see some debug log in proxy as below:
+
 ```log
 Sending local reply with details upgrade_failed
 ```
 
 ### Envoy
+
 You need add a new upgrade_type named `tailscale-control-protocol`. [see detail](https://www.envoyproxy.io/docs/envoy/latest/api-v3/extensions/filters/network/http_connection_manager/v3/http_connection_manager.proto#extensions-filters-network-http-connection-manager-v3-httpconnectionmanager-upgradeconfig)
 
 ### Istio
+
 Same as envoy, we can use `EnvoyFilter` to add upgrade_type.
+
 ```yaml
 apiVersion: networking.istio.io/v1alpha3
 kind: EnvoyFilter
@@ -79,17 +84,17 @@ metadata:
   namespace: istio-system
 spec:
   configPatches:
-  - applyTo: NETWORK_FILTER
-    match:
-      listener:
-        filterChain:
-          filter:
-            name: envoy.filters.network.http_connection_manager
-    patch:
-      operation: MERGE
-      value:
-        typed_config:
-          '@type': type.googleapis.com/envoy.extensions.filters.network.http_connection_manager.v3.HttpConnectionManager
-          upgrade_configs:
-            - upgrade_type: tailscale-control-protocol
-```
\ No newline at end of file
+    - applyTo: NETWORK_FILTER
+      match:
+        listener:
+          filterChain:
+            filter:
+              name: envoy.filters.network.http_connection_manager
+      patch:
+        operation: MERGE
+        value:
+          typed_config:
+            "@type": type.googleapis.com/envoy.extensions.filters.network.http_connection_manager.v3.HttpConnectionManager
+            upgrade_configs:
+              - upgrade_type: tailscale-control-protocol
+```