For more see: golang/go#40747 and knative/serving#12387. Make sure you use go 1.21 and it contains the fix.
Scenario: Http Client -> Envoy (10000) -> Http Reverse Proxy -> Test Echo Server (random port)
- On one terminal run the app
$ go run ./cmd/echo-rp/
2023/10/19 18:36:54 Proxy listening to :http:https://127.0.0.1:34423
-
Patch config.yaml with the port output:
port_value: 34423. -
On another terminal run envoy
$docker run --rm -it --net=host \
-v $(pwd)/config.yaml:/config.yaml \
-p 9901:9901 \
-p 10000:10000 \
envoyproxy/envoy:v1.28-latest \
-c /config.yaml
- Test end-to-end connectivity (envoy is listening to 10000 by default):
curl -X POST http:https://0.0.0.0:10000 -d "data"
data
- Run Tests:
$ go test -run TestProxyBehindEnvoy ./pkg/rp/...
ok github.com/skonto/test-reverse-proxy/pkg/rp 12.262s
If you uncomment code in the test that uses no fullduplex then it should fail even with go 1.21:
$ go test -run TestProxyBehindEnvoy ./pkg/rp/...
--- FAIL: TestProxyBehindEnvoy (12.42s)
envoy_test.go:30: error during request: failed to read body: unexpected EOF
envoy_test.go:30: error during request: failed to read body: unexpected EOF
envoy_test.go:30: error during request: failed to read body: unexpected EOF
envoy_test.go:30: error during request: failed to read body: unexpected EOF
envoy_test.go:30: error during request: failed to read body: unexpected EOF
envoy_test.go:30: error during request: failed to read body: unexpected EOF
envoy_test.go:30: error during request: failed to read body: unexpected EOF
envoy_test.go:30: error during request: failed to read body: unexpected EOF
envoy_test.go:30: error during request: failed to read body: unexpected EOF
envoy_test.go:30: error during request: failed to read body: unexpected EOF
envoy_test.go:30: error during request: failed to read body: unexpected EOF
envoy_test.go:30: error during request: failed to read body: unexpected EOF
envoy_test.go:30: error during request: failed to read body: unexpected EOF
envoy_test.go:30: error during request: failed to read body: unexpected EOF
envoy_test.go:30: error during request: failed to read body: unexpected EOF
envoy_test.go:30: error during request: failed to read body: unexpected EOF
envoy_test.go:30: error during request: failed to read body: unexpected EOF
envoy_test.go:30: error during request: failed to read body: unexpected EOF
envoy_test.go:30: error during request: failed to read body: unexpected EOF
envoy_test.go:30: error during request: failed to read body: unexpected EOF
envoy_test.go:30: error during request: failed to read body: unexpected EOF
envoy_test.go:30: error during request: failed to read body: unexpected EOF
envoy_test.go:30: error during request: failed to read body: unexpected EOF
FAIL
FAIL github.com/skonto/test-reverse-proxy/pkg/rp 12.428s
FAIL
# export your cluster entrypoint, bellow is the expossed ingress url from a minikube cluster
export INGRESS_URL=http:https://192.168.39.97:30765
export REQUEST_HOST=helloworld-go.default.example.com
for i in {1..10}; do go clean -cache; go test -v -run TestProxyBehindEnvoy ./pkg/rp/...; done