chore: Add dockerfile and interface and files for support firewalls

internal/firewall/firewalld.go

@@ -0,0 +1 @@
+package firewall

internal/firewall/iptables.go

@@ -0,0 +1 @@
+package firewall

internal/firewall/nftables.go

@@ -0,0 +1 @@
+package firewall

internal/firewall/type.go

@@ -0,0 +1,4 @@
+package firewall
+
+type Firewall interface {
+}