External Processing Demo

Simple Envoy ext_proc to test loadbalancing across multipe ext_proc services.

Build Local

make local.build

Run Local

1. The target is webhook.site, get a GUID from there first.

2. In separate terminals launch two instances of the ext-proc service

   ./bin/extprocdemo --port 10001

   ./bin/extprocdemo --port 10002

3. Use func-e to launch Envoy (https://func-e.io/)

   func-e run -c config/envoy.yaml

4. Envoy is listening on port 8080, call that with the webhook.site GUID, e.g.

   curl http://localhost:8080/03e9d944-0431-4027-b969-7022fc34e576

Build Container

Change to your own dockerhub repo prefix. Alternatively don't build it and just pull mine.

make docker.push

Run In Cluster

1. Install the services

   kubectl create namespace envoy

   helm upgrade -i -n envoy extproc ./helm/extproc

   helm upgrade -i -n envoy envoy ./helm/envoy

2. Port forward

   kubectl port-forward -n envoy --address 0.0.0.0 svc/envoy 8080:8080

3. Call the service

   curl http://localhost:8080/03e9d944-0431-4027-b969-7022fc34e576