Support VPC Subnets & Update to Go 1.17 (#18)

* support vpc subnets

* update to go 1.17

cmd/displayers/subnet.go

@@ -67,6 +67,15 @@ func (o Subnets) TableData(w io.Writer) error {
 	for i, subnet := range o.Entities {
 		subnetIP := ""
 		dhcpPool := ""
+		vlanId := ""
+		if subnet.Spec.Resources.VlanID != nil {
+			vlanId = strconv.FormatInt(*subnet.Spec.Resources.VlanID, 10)
+
+		}
+		clusterName := ""
+		if subnet.Spec.ClusterReference != nil {
+			clusterName = subnet.Spec.ClusterReference.Name
+		}
 		gw := ""
 		if subnet.Spec.Resources.IPConfig != nil {
 			subnetIP = fmt.Sprintf("%s/%d", subnet.Spec.Resources.IPConfig.SubnetIP, subnet.Spec.Resources.IPConfig.PrefixLength)
@@ -83,8 +92,8 @@ func (o Subnets) TableData(w io.Writer) error {
 		data[i] = []string{
 			subnet.Metadata.UUID,
 			subnet.Spec.Name,
-			subnet.Spec.ClusterReference.Name,
-			strconv.FormatInt(*subnet.Spec.Resources.VlanID, 10),
+			clusterName,
+			vlanId,
 			subnetIP,
 			gw,
 			dhcpPool,

go.mod

@@ -1,6 +1,6 @@
 module github.com/simonfuhrer/nutactl
 
-go 1.16
+go 1.17
 
 require (
 	github.com/briandowns/spinner v1.16.0
@@ -27,3 +27,20 @@ require (
 	gopkg.in/yaml.v2 v2.4.0
 	k8s.io/client-go v11.0.0+incompatible
 )
+
+require (
+	github.com/cpuguy83/go-md2man/v2 v2.0.0 // indirect
+	github.com/fsnotify/fsnotify v1.4.9 // indirect
+	github.com/hashicorp/hcl v1.0.0 // indirect
+	github.com/inconshreveable/mousetrap v1.0.0 // indirect
+	github.com/magiconair/properties v1.8.5 // indirect
+	github.com/mattn/go-colorable v0.1.8 // indirect
+	github.com/mitchellh/mapstructure v1.4.1 // indirect
+	github.com/pelletier/go-toml v1.9.3 // indirect
+	github.com/rivo/uniseg v0.2.0 // indirect
+	github.com/spf13/afero v1.6.0 // indirect
+	github.com/spf13/cast v1.3.1 // indirect
+	github.com/spf13/jwalterweatherman v1.1.0 // indirect
+	github.com/subosito/gotenv v1.2.0 // indirect
+	gopkg.in/ini.v1 v1.62.0 // indirect
+)