fix: kube-proxy enabled field (#353)

docs/resources/cluster.md

@@ -730,7 +730,7 @@ The following arguments are supported:
 - `bind_address` - (Optional) - String - BindAddress is IP address for the proxy server to serve on.
 - `master` - (Optional) - String - Master is the address of the Kubernetes API server (overrides any value in kubeconfig).
 - `metrics_bind_address` - (Optional) - String - MetricsBindAddress is the IP address for the metrics server to serve on.
-- `enabled` - (Optional) - Bool - Enabled allows enabling or disabling kube-proxy.
+- `enabled` - (Required) - Bool - Enabled allows enabling or disabling kube-proxy.
 - `proxy_mode` - (Optional) - String - Which proxy mode to use: (userspace, iptables(default), ipvs).
 - `ip_vs_exclude_cidr_s` - (Optional) - List(String) - IPVSExcludeCIDRS is comma-separated list of CIDR's which the ipvs proxier should not touch when cleaning up IPVS rules.
 - `ip_vs_min_sync_period` - (Optional) - Duration - IPVSMinSyncPeriod is the minimum interval of how often the ipvs rules can be refreshed as endpoints and services change (e.g. '5s', '1m', '2h22m').

hack/gen-tf-code/main.go

@@ -164,7 +164,9 @@ func main() {
 		generate(kops.KubeControllerManagerConfig{}),
 		generate(kops.CloudControllerManagerConfig{}),
 		generate(kops.KubeSchedulerConfig{}),
-		generate(kops.KubeProxyConfig{}),
+		generate(kops.KubeProxyConfig{},
+			required("Enabled"),
+		),
 		generate(kops.KubeletConfigSpec{},
 			nullable("AnonymousAuth"),
 		),

pkg/schemas/kops/Resource_KubeProxyConfig.generated.go

@@ -25,7 +25,7 @@ func ResourceKubeProxyConfig() *schema.Resource {
 			"bind_address":           OptionalString(),
 			"master":                 OptionalString(),
 			"metrics_bind_address":   OptionalString(),
-			"enabled":                OptionalBool(),
+			"enabled":                RequiredBool(),
 			"proxy_mode":             OptionalString(),
 			"ip_vs_exclude_cidr_s":   OptionalList(String()),
 			"ip_vs_min_sync_period":  OptionalDuration(),
@@ -95,12 +95,6 @@ func ExpandResourceKubeProxyConfig(in map[string]interface{}) kops.KubeProxyConf
 			}(in)
 		}(in["metrics_bind_address"]),
 		Enabled: func(in interface{}) *bool {
-			if in == nil {
-				return nil
-			}
-			if reflect.DeepEqual(in, reflect.Zero(reflect.TypeOf(in)).Interface()) {
-				return nil
-			}
 			return func(in interface{}) *bool {
 				if in == nil {
 					return nil