add route http keep alive timeout

[ctrought]

Adds per route http keep alive timeout annotation.

kind: Route
apiVersion: route.openshift.io/v1
metadata:
  name: nginx
  namespace: aiocptools
  annotations:
    haproxy.router.openshift.io/timeout-http-keep-alive: 30m

HAproxy config

backend be_edge_http:namesapce:nginx
  mode http
  option redispatch
  option forwardfor
  balance random
  timeout http-keep-alive 30m                    <---

  timeout check 5000ms
  http-request add-header X-Forwarded-Host %[req.hdr(host)]
  http-request add-header X-Forwarded-Port %[dst_port]
  http-request add-header X-Forwarded-Proto http if !{ ssl_fc }
  http-request add-header X-Forwarded-Proto https if { ssl_fc }
  http-request add-header X-Forwarded-Proto-Version h2 if { ssl_fc_alpn -i h2 }
  http-request add-header Forwarded for=%[src];host=%[req.hdr(host)];proto=%[req.hdr(X-Forwarded-Proto)]

[openshift-ci]

Hi @ctrought. Thanks for your PR.

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[alebedev87]

Just for info and may be this can address (partially) your need: recently we implemented an API field in IngressController API to fine tune http-keep alive timeout for the whole ingresscontroller: link to api field.

[ctrought]

Just for info and may be this can address (partially) your need: recently we implemented an API field in IngressController API to fine tune http-keep alive timeout for the whole ingresscontroller: link to api field.

Thank you! Definitely an option, though was hoping to be able to set per route.