Use file tags to generate conversions

This drives conversion generation from file tags like:
  // +conversion-gen=k8s.io/my/internal/version
.. rather than hardcoded lists of packages.

The only net change in generated code can be explained as correct.  Previously
it didn't know that conversion was available.

pkg/api/v1/doc.go

@@ -15,7 +15,7 @@ limitations under the License.
 */
 
 // +k8s:deepcopy-gen=package,register
+// +k8s:conversion-gen=k8s.io/kubernetes/pkg/api
 
 // Package v1 is the v1 version of the API.
-// +genconversion=true
 package v1

pkg/api/v1/generated.proto

@@ -2481,7 +2481,7 @@ message Secret {
   // It is provided as a write-only convenience method.
   // All keys and values are merged into the data field on write, overwriting any existing values.
   // It is never output when reading from the API.
-  // +genconversion=false
+  // +k8s:conversion-gen=false
   map<string, string> stringData = 4;
 
   // Used to facilitate programmatic handling of secret data.
@@ -2715,7 +2715,7 @@ message ServiceSpec {
   // API for compatibility until at least 8/20/2016.  It will be removed from
   // any new API revisions.  If both deprecatedPublicIPs *and* externalIPs are
   // set, deprecatedPublicIPs is used.
-  // +genconversion=false
+  // +k8s:conversion-gen=false
   repeated string deprecatedPublicIPs = 6;
 
   // Supports "ClientIP" and "None". Used to maintain session affinity.

pkg/api/v1/types.go

@@ -2081,7 +2081,7 @@ type ServiceSpec struct {
 	// API for compatibility until at least 8/20/2016.  It will be removed from
 	// any new API revisions.  If both deprecatedPublicIPs *and* externalIPs are
 	// set, deprecatedPublicIPs is used.
-	// +genconversion=false
+	// +k8s:conversion-gen=false
 	DeprecatedPublicIPs []string `json:"deprecatedPublicIPs,omitempty" protobuf:"bytes,6,rep,name=deprecatedPublicIPs"`
 
 	// Supports "ClientIP" and "None". Used to maintain session affinity.
@@ -3096,7 +3096,7 @@ type Secret struct {
 	// It is provided as a write-only convenience method.
 	// All keys and values are merged into the data field on write, overwriting any existing values.
 	// It is never output when reading from the API.
-	// +genconversion=false
+	// +k8s:conversion-gen=false
 	StringData map[string]string `json:"stringData,omitempty" protobuf:"bytes,4,rep,name=stringData"`
 
 	// Used to facilitate programmatic handling of secret data.