Rewrite and response headers mentioned in OpenAPI.

Author: andrey-zelenkov

docs/unit-openapi.yaml

@@ -1,6 +1,6 @@
 openapi: 3.0.0
 info:
-  title: "NGINX Unit 1.30.0"
+  title: "NGINX Unit 1.31.0"
   description: "NGINX Unit is a lightweight and versatile application runtime
     that provides the essential components for your web application as a
     single open-source server: running application code, serving static assets,
@@ -5904,6 +5904,12 @@ components:
           description: "Destination to which the action passes
             incoming requests."
 
+        rewrite:
+          $ref: "#/components/schemas/configRouteStepActionRewrite"
+
+        response_headers:
+          $ref: "#/components/schemas/configRouteStepActionResponseHeaders"
+
     #/config/routes/{stepIndex}/action/proxy
     #/config/routes/{routeName}/{stepIndex}/action/proxy
     configRouteStepActionProxy:
@@ -5918,6 +5924,12 @@ components:
           description: "Socket address of an HTTP server to where the request
             is proxied."
 
+        rewrite:
+          $ref: "#/components/schemas/configRouteStepActionRewrite"
+
+        response_headers:
+          $ref: "#/components/schemas/configRouteStepActionResponseHeaders"
+
     #/config/routes/{stepIndex}/action/return
     #/config/routes/{routeName}/{stepIndex}/action/return
     configRouteStepActionReturn:
@@ -5937,6 +5949,12 @@ components:
           type: string
           description: "URI; used if the return value implies redirection."
 
+        rewrite:
+          $ref: "#/components/schemas/configRouteStepActionRewrite"
+
+        response_headers:
+          $ref: "#/components/schemas/configRouteStepActionResponseHeaders"
+
     #/config/routes/{stepIndex}/action/share
     #/config/routes/{routeName}/{stepIndex}/action/share
     configRouteStepActionShare:
@@ -5979,6 +5997,28 @@ components:
           description: "Turns on and off mount point resolution."
           default: true
 
+        rewrite:
+          $ref: "#/components/schemas/configRouteStepActionRewrite"
+
+        response_headers:
+          $ref: "#/components/schemas/configRouteStepActionResponseHeaders"
+
+    #/config/routes/{stepIndex}/action/rewrite
+    #/config/routes/{routeName}/{stepIndex}/action/rewrite
+    configRouteStepActionRewrite:
+      type: string
+      description: "Updates the URI of the incoming request before the action
+        is applied."
+
+    #/config/routes/{stepIndex}/action/response_headers
+    #/config/routes/{routeName}/{stepIndex}/action/response_headers
+    configRouteStepActionResponseHeaders:
+      type: object
+      description: "Updates the header fields of Unit’s response before the
+        action is taken."
+      additionalProperties:
+        type: string
+
     # /config/listeners/
     configListeners:
       type: object