haproxy for docker registry

haproxy.conf

frontend https
      bind :80
      bind 0.0.0.0:443 ssl crt /etc/haproxy/mydomain.com.pem
      reqadd X-Forwarded-Proto:\ https
      
      redirect scheme https if !{ ssl_fc }
      
      acl docker_registry_domain hdr(host) -i docker-register.mydomain.com
      # This is a hack for docker not always sending basic auth data
      acl docker_token hdr(Authorization:) -i Token
      acl auth_docker_registry http_auth(auth_list)
      acl docker_registry_ping url_sub _ping
      
      http-request auth realm Restricted if !auth_docker_registry docker_registry_domain !docker_registry_ping  !docker_token
      
      use_backend docker-register if docker_registry_domain


userlist auth_list
     user usera password $6$mQwPjhougLpSk7$4ydwedihqwidehwdhwidipewjdipjewidweiph

backend docker-register
   server  localdockerreg 127.0.0.1:5000