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Accept Proxy

If set to true, enforces the use of the PROXY protocol over any connection accepted by HAProxy. It will add the accept-proxy keyword on the bind line of the generated haproxy.cfg.

Ingress Example

First create a test-server and expose it via service:

$ kubectl run test-server --image=gcr.io/google_containers/echoserver:1.8
deployment "test-server" created

$ kubectl expose deployment test-server --type=LoadBalancer --port=80 --target-port=8080
service "test-server" exposed

Then create the ingress:

$ kubectl apply -f test-ingress.yaml

apiVersion: voyager.appscode.com/v1
kind: Ingress
metadata:
  name: test-ingress
  namespace: default
  annotations:
    ingress.appscode.com/accept-proxy: "true"
spec:
  rules:
  - host: voyager.appscode.test
    http:
      paths:
      - path: /foo
        backend:
          service:
          	name: test-server
            port:
              number: 80
$ kubectl get pods,svc
NAME                                       READY     STATUS    RESTARTS   AGE
po/test-server-68ddc845cd-x7dtv            1/1       Running   0          23h
po/voyager-test-ingress-5b758664f6-mb4hs   1/1       Running   0          2m

NAME                       TYPE           CLUSTER-IP      EXTERNAL-IP   PORT(S)        AGE
svc/kubernetes             ClusterIP      10.96.0.1       <none>        443/TCP        2d
svc/test-server            LoadBalancer   10.105.13.31    <pending>     80:30390/TCP   1d
svc/voyager-test-ingress   LoadBalancer   10.106.53.141   <pending>     80:30966/TCP   2m

Generated haproxy.cfg:

# HAProxy configuration generated by https://github.com/appscode/voyager
# DO NOT EDIT!
global
	daemon
	stats socket /tmp/haproxy
	server-state-file global
	server-state-base /var/state/haproxy/
	# log using a syslog socket
	log /dev/log local0 info
	log /dev/log local0 notice
	tune.ssl.default-dh-param 2048
	ssl-default-bind-ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE-ECDSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:ECDHE-ECDSA-AES256-GCM-SHA384:DHE-RSA-AES128-GCM-SHA256:DHE-DSS-AES128-GCM-SHA256:kEDH+AESGCM:ECDHE-RSA-AES128-SHA256:ECDHE-ECDSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-ECDSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:ECDHE-ECDSA-AES256-SHA384:ECDHE-RSA-AES256-SHA:ECDHE-ECDSA-AES256-SHA:DHE-RSA-AES128-SHA256:DHE-RSA-AES128-SHA:DHE-DSS-AES128-SHA256:DHE-RSA-AES256-SHA256:DHE-DSS-AES256-SHA:DHE-RSA-AES256-SHA:!aNULL:!eNULL:!EXPORT:!DES:!RC4:!3DES:!MD5:!PSK
	hard-stop-after 30s
defaults
	log global
	# https://cbonte.github.io/haproxy-dconv/1.7/configuration.html#4.2-option%20abortonclose
	# https://github.com/voyagermesh/gateway-docs/pull/403
	option dontlognull
	option http-server-close
	# Timeout values
	timeout client 50s
	timeout client-fin 50s
	timeout connect 5s
	timeout server 50s
	timeout tunnel 50s
	# Configure error files
	# default traffic mode is http
	# mode is overwritten in case of tcp services
	mode http
frontend http-0_0_0_0-80
	bind *:80 accept-proxy
	mode http
	option httplog
	option forwardfor
	acl is_proxy_https hdr(X-Forwarded-Proto) https
	acl acl_voyager.appscode.test hdr(host) -i voyager.appscode.test
	acl acl_voyager.appscode.test hdr(host) -i voyager.appscode.test:80
	acl acl_voyager.appscode.test:foo path_beg /foo
	use_backend test-server.default:80 if acl_voyager.appscode.test acl_voyager.appscode.test:foo
backend test-server.default:80
	server pod-test-server-68ddc845cd-x7dtv 172.17.0.4:8080