Part 2 of plural ports: make endpoints a struct

Includes conversions for v1b[12] and tests and fixups for call sites.

pkg/api/testing/fuzzer.go

@@ -17,6 +17,7 @@ limitations under the License.
 package testing
 
 import (
+	"fmt"
 	"math/rand"
 	"strconv"
 	"testing"
@@ -233,6 +234,11 @@ func FuzzerFor(t *testing.T, version string, src rand.Source) *fuzz.Fuzzer {
 
 			s.Type = api.SecretTypeOpaque
 		},
+		func(ep *api.Endpoint, c fuzz.Continue) {
+			// TODO: If our API used a particular type for IP fields we could just catch that here.
+			ep.IP = fmt.Sprintf("%d.%d.%d.%d", c.Rand.Intn(256), c.Rand.Intn(256), c.Rand.Intn(256), c.Rand.Intn(256))
+			ep.Port = c.Rand.Intn(65536)
+		},
 	)
 	return f
 }