frontend nova_novncproxy_front
    mode http
    http-request del-header X-Forwarded-Proto
    option httplog
    option forwardfor
    http-request set-header X-Forwarded-Proto https if { ssl_fc }
    bind 192.0.2.10:6080 ssl crt /etc/haproxy/certificates/haproxy-internal.pem alpn h2,http/1.1
    default_backend nova_novncproxy_back

backend nova_novncproxy_back
    mode http
    timeout tunnel 1h
    server primary 192.0.2.1:6080 check inter 2000 rise 2 fall 5