feat: Add direct route in the local gateway proxy bootstrap config (#…

…8409) * feat: Add direct route in the local gateway proxy bootstrap config * Add documentation * Change changelog type to NON_USER_FACING Co-authored-by: Nathan Fudenberg <[email protected]> * explicitly add resolvesIssue in the changelog * Update local-gateway-proxy readme to be more readable --------- Co-authored-by: David Jumani <[email protected]> Co-authored-by: Nathan Fudenberg <[email protected]> Co-authored-by: soloio-bulldozer[bot] <48420018+soloio-bulldozer[bot]@users.noreply.github.com>
solo-io · Jun 22, 2023 · 5178ca2 · 5178ca2
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diff --git a/changelog/v1.15.0-beta15/add-direct-route-local-gateway-proxy.yaml b/changelog/v1.15.0-beta15/add-direct-route-local-gateway-proxy.yaml
@@ -0,0 +1,7 @@
+changelog:
+- type: NON_USER_FACING
+  issueLink: https://github.com/solo-io/solo-projects/issues/5112
+  resolvesIssue: true
+  description: >-
+    Adds a new direct route to the local gatway proxy bootstrap config.
+
diff --git a/install/local-gateway-proxy/README.md b/install/local-gateway-proxy/README.md
@@ -1,6 +1,13 @@
 # Local Gateway-Proxy
 It can be useful to run the Envoy proxy, without the control-plane, as a way of validating proxy behavior.
 
+The envoy proxy is configured to perform the following :
+- Define a listener on port 8000.
+- Define a cluster `echo_service` mapped to `postman-echo.com` as the upstream endpoint.
+- Define an `http_connection_manager` filter with a router that does the following :
+  - Define a `direct_response` filter for the `/direct` path that returns a status 200 along with `direct response, ok` as the response body
+  - Route all other requests to the `echo_service`
+
 ## Setup
 [source_data/bootstrap.yaml](./source_data/bootstrap.yaml) provides example bootstrap that can be used. To run this locally, first execute:
 ```shell
@@ -28,4 +35,4 @@ If the above command succeeded, you should be able to visit [port 19000 in your
 To clean up the running instance, run:
 ```shell
 docker-compose down
-```
+```
diff --git a/install/local-gateway-proxy/source_data/bootstrap.yaml b/install/local-gateway-proxy/source_data/bootstrap.yaml
@@ -68,6 +68,12 @@ static_resources:
                     - name: local_service
                       domains: ["*"]
                       routes:
+		        # https://www.envoyproxy.io/docs/envoy/latest/configuration/listeners/network_filters/direct_response_filter.html
+                        - match: { path: "/direct" }
+                          direct_response:
+                            status: 200
+                            body:
+                              inline_string: "direct response, ok"
                         - match: { prefix: "/" }
                           route:
                             cluster: echo_service
@@ -118,4 +124,4 @@ static_resources:
 # Definition for how Envoy will receive its dynamic configuration
 # https://www.envoyproxy.io/docs/envoy/latest/api-docs/xds_protocol#xds-protocol
 ####
-dynamic_resources: {}
+dynamic_resources: {}