added proxyprotocol options

TODO

@@ -1,7 +1,5 @@
-test etcd
-* user/password
-* multi node
+VIP for haproxy-lb
+* take from pool?
+* extra config?
 
-usr arp lib https://godoc.org/github.com/mdlayher/arp ?
-* https://github.com/metallb/metallb/blob/main/internal/layer2/arp.go#L50
-add google copyright to arp ocde?
+test api in followers

pkg/api/v1/schema/schema.go

@@ -21,9 +21,11 @@ type LoadBalancer struct {
 }
 
 type Options struct {
-	Frontend      []string `json:"frontend,omitempty"`
-	Backend       []string `json:"backend,omitempty"`
-	DefaultServer string   `json:"defaultServer,omitempty`
+	Frontend           []string `json:"frontend,omitempty"`
+	Backend            []string `json:"backend,omitempty"`
+	ProxyProtocol      string   `json:"proxyProtocol,omitempty"`
+	CheckProxyProtocol bool     `json:"checkProxyProtocol,omitempty"`
+	DefaultServer      string   `json:"defaultServer,omitempty`
 }
 
 type Port struct {

pkg/haproxy/config.go

@@ -26,9 +26,11 @@ type LoadBalancer struct {
 }
 
 type Options struct {
-	Frontend      []string `json:"frontend"`
-	Backend       []string `json:"backend"`
-	DefaultServer string   `json:"defaultServer"`
+	Frontend           []string `json:"frontend"`
+	Backend            []string `json:"backend"`
+	ProxyProtocol      string   `json:"proxyProtocol"`
+	CheckProxyProtocol bool     `json:"checkProxyProtocol"`
+	DefaultServer      string   `json:"defaultServer"`
 }
 
 type Port struct {

pkg/haproxy/template.go

@@ -2,6 +2,7 @@ package haproxy
 
 const haproxyConfigTemplate = `global
   daemon
+  # TODO
   #chroot /var/lib/haproxy
   chroot /usr/share/haproxy
   pidfile /run/haproxy.pid
@@ -31,20 +32,21 @@ frontend fr_{{ $item.Name }}_{{ $port.Port }}
 {{- range $opt := $item.Options.Frontend }}
   option {{ $opt }}
 {{- end }}
-  # option tcplog
-  # option splice-request
   default_backend ba_{{ $item.Name }}_{{ $port.Port }}
 backend ba_{{ $item.Name }}_{{ $port.Port }}
   balance roundrobin
 {{- range $opt := $item.Options.Backend }}
   option {{ $opt }}
 {{- end }}
-  # option splice-response
-  # option httpchk GET /
   default-server inter 3s downinter 10s fall 2 rise 2 on-marked-down shutdown-sessions {{ $item.Options.DefaultServer }}
-  # send-proxy-v2
-  # check-send-proxy
-  # port <healthCheckNodePort>
+{{- if eq $item.Options.ProxyProtocol "v1" }}
+  send-proxy
+{{- else if eq $item.Options.ProxyProtocol "v2" }}
+  send-proxy-v2
+{{- end }}
+{{- if $item.Options.CheckProxyProtocol }}
+  check-send-proxy
+{{- end }}
 {{- range $srv := $port.Servers }}
   server {{ $srv.Name }} {{ $srv.IP }}:{{ $srv.Port }} check
 {{- end }}