Add --service-cidr server arg support

pkg/cli/cmds/server.go

@@ -65,6 +65,12 @@ func NewServerCommand(action func(*cli.Context) error) cli.Command {
 				Destination: &ServerConfig.ClusterSecret,
 				EnvVar:      "K3S_CLUSTER_SECRET",
 			},
+			cli.StringFlag{
+				Name:        "service-cidr",
+				Usage:       "Network CIDR to use for services IPs",
+				Destination: &ServerConfig.ServiceCIDR,
+				Value:       "10.43.0.0/16",
+			},
 			cli.StringSliceFlag{
 				Name:  "no-deploy",
 				Usage: "Do not deploy packaged components (valid items: coredns, servicelb, traefik)",

pkg/cli/server/server.go

@@ -82,6 +82,10 @@ func run(app *cli.Context, cfg *cmds.Server) error {
 	if err != nil {
 		return errors.Wrapf(err, "Invalid CIDR %s: %v", cfg.ClusterCIDR, err)
 	}
+	_, serverConfig.ControlConfig.ServiceIPRange, err = net2.ParseCIDR(cfg.ServiceCIDR)
+	if err != nil {
+		return errors.Wrapf(err, "Invalid CIDR %s: %v", cfg.ServiceCIDR, err)
+	}
 
 	// TODO: support etcd
 	serverConfig.ControlConfig.NoLeaderElect = true