Backport of docs: Update default values for Envoy extension proxy types into release/1.16.x

website/content/docs/connect/proxies/envoy-extensions/configuration/property-override.mdx

@@ -17,7 +17,7 @@ The following list outlines the field hierarchy, data types, and requirements fo
 
 Click on a property name to view additional details, including default values.
 
-- [`ProxyType`](#proxytype): string | required 
+- [`ProxyType`](#proxytype): string | `connect-proxy`
 - [`Debug`](#debug): bool | `false` 
 - [`Patches`](#patches): list | required
    - [`ResourceFilter`](#patches-resourcefilter): map         
@@ -69,7 +69,6 @@ Specifies the type of Envoy proxy that the extension applies to. The only suppor
 #### Values
 
 - Default: `connect-proxy`
-- This field is required.
 - Data type: String 
 
 ### `Debug`

website/content/docs/connect/proxies/envoy-extensions/usage/lua.mdx

@@ -15,11 +15,9 @@ Envoy filters support setting and getting dynamic metadata, allowing a filter to
 
 To use the Lua Envoy extension, configure the following arguments in the `EnvoyExtensions` block:
 
-| Arguments      | Description                                                                                      |
-| -------------- | ------------------------------------------------------------------------------------------------ |
-| `ProxyType`    | Determines the proxy type the extension applies to. The only supported value is `connect-proxy`. |
-| `ListenerType` | Specifies if the extension is applied to the `inbound` or `outbound` listener.                   |
-| `Script`       | The Lua script that is configured to run by the HTTP Lua filter.                                 |
+- `ProxyType`: string | `connect-proxy` - Determines the proxy type the extension applies to. The only supported value is `connect-proxy`.
+- `ListenerType`: string | required - Specifies if the extension is applied to the `inbound` or `outbound` listener.
+- `Script`: string | required - The Lua script that is configured to run by the HTTP Lua filter.
 
 ## Workflow
 
@@ -44,16 +42,15 @@ The following example configures the Lua Envoy extension on every service by usi
 <CodeBlockConfig filename="lua-envoy-extension-proxy-defaults.hcl">
 
 ```hcl
-Kind = "proxy-defaults"
-Name = "global"
-Protocol  = "http"
+Kind     = "proxy-defaults"
+Name     = "global"
+Protocol = "http"
 EnvoyExtensions {
   Name = "builtin/lua"
-
   Arguments = {
     ProxyType = "connect-proxy"
-    Listener = "inbound"
-    Script = <<-EOS
+    Listener  = "inbound"
+    Script    = <<-EOS
 function envoy_on_request(request_handle)
   meta = request_handle:streamInfo():dynamicMetadata()
   m = meta:get("consul")
@@ -159,7 +156,7 @@ $ kubectl apply lua-envoy-extension-proxy-defaults.yaml
 
 In the following example, the `service-defaults` configure the Lua Envoy extension to insert the HTTP Lua filter for service `myservice` and add the Consul service name to the`x-consul-service` header for all inbound requests. The `ListenerType` makes it so that the extension applies only on the inbound listener of the service's connect proxy.
 
-<CodeBlockConfig filename="lua-envoy-extension.json">
+<CodeBlockConfig filename="lua-envoy-extension.hcl">
 
 ```hcl
 Kind = "service-defaults"
@@ -170,8 +167,8 @@ EnvoyExtensions = [
 
     Arguments = {
       ProxyType = "connect-proxy"
-      Listener = "inbound"
-      Script = <<EOF
+      Listener  = "inbound"
+      Script    = <<EOF
   function envoy_on_request(request_handle)
     local service = request_handle:streamInfo():dynamicMetadata():get("consul")["service"]
     request_handle:headers():add("x-consul-service", service)
@@ -188,7 +185,7 @@ Alternatively, you can apply the same extension configuration to [`proxy-default
 
 You can also specify multiple Lua filters through the Envoy extensions. They will not override each other.
 
-<CodeBlockConfig filename="lua-envoy-extension.json">
+<CodeBlockConfig filename="lua-envoy-extension.hcl">
 
 ```hcl
 Kind = "service-defaults"
@@ -198,8 +195,8 @@ EnvoyExtensions = [
     Name = "builtin/lua",
     Arguments = {
       ProxyType = "connect-proxy"
-      Listener = "inbound"
-      Script = <<-EOF
+      Listener  = "inbound"
+      Script    = <<-EOF
 function envoy_on_request(request_handle)
   meta = request_handle:streamInfo():dynamicMetadata()
   m = meta:get("consul")
@@ -212,8 +209,8 @@ end
     Name = "builtin/lua",
     Arguments = {
       ProxyType = "connect-proxy"
-      Listener = "inbound"
-      Script = <<-EOF
+      Listener  = "inbound"
+      Script    = <<-EOF
 function envoy_on_request(request_handle)
   meta = request_handle:streamInfo():dynamicMetadata()
   m = meta:get("consul")

website/content/docs/connect/proxies/envoy-extensions/usage/property-override.mdx

@@ -32,28 +32,30 @@ In the following service defaults configuration entry example, Consul adds a new
 <CodeBlockConfig filename="property-override-extension-service-defaults.hcl">
 
 ```hcl
-Kind = "service-defaults"
-Name = "global"
-Protocol  = "http"
+Kind     = "service-defaults"
+Name     = "global"
+Protocol = "http"
 EnvoyExtensions = [ 
   {
     Name = "builtin/property-override"
     Arguments = {
-      ProxyType = "connect-proxy",
+      ProxyType = "connect-proxy"
       Patches = [
         {
           ResourceFilter  = {
-	     ResourceType  = "cluster", 
-            TrafficDirection  = "outbound"
+            ResourceType     = "cluster"
+            TrafficDirection = "outbound"
             Services = [{
                Name =  "other-svc"
-            }],
-          Op = "add"
-          Path = "/upstream_connection_options/tcp_keepalive/keepalive_probes",
-          Value = 5,
+            }]
+          }
+          Op    = "add"
+          Path  = "/upstream_connection_options/tcp_keepalive/keepalive_probes"
+          Value = 5
         }
-      ]  
-   }
+      ]
+    }
+  }
 ]
 ```
 </CodeBlockConfig>