Envoy doesn't add headers in case of Gateway Timeout #4317
Description
Description:
Envoy doesn't add headers specified in the route configuration in case of upstream timeout.
Repro steps:
Send request to upstream which doesn't respond within specified route timeout.
Expected: envoy adds headers specified under response_headers_to_add
Actual: envoy doesn't add any headers:
'server' => 'envoy',
'content-length' => '24',
'Reason' => 'Gateway Timeout',
'URL' => 'http://authxserver.service/infra_test/idempotent',
'HTTPVersion' => '1.1',
'content-type' => 'text/plain',
'date' => 'Fri, 31 Aug 2018 13:21:31 GMT',
'Status' => 504
route config:
{
"match": {
"regex": "^/(infra_test/idempotent|/iam/issue-refresh-token|identity/user-exists/.*)"
},
"route": {
"cluster": "authxserver.prod.cluster",
"timeout": "0.500s",
"retry_policy": {
"retry_on": "5xx",
"num_retries": 2,
"per_try_timeout": "0.150s"
},
"response_headers_to_add": [
{
"header": {
"key": "x-envoy-authxserver-endpoint-type",
"value": "3"
}
}
]
}