Add the noop (ignored) status (#142)

* add noop/ignore status

* rebase

kubernetes/migration/notice.go

@@ -22,7 +22,7 @@ func (n *Notice) ToString() string {
 	if n.Severity == unsupported {
 		s += "is unsupported by this migration tool in " + n.Version + "."
 	} else {
-		s += "was " + n.Severity + " in " + n.Version + "."
+		s += "is " + n.Severity + " in " + n.Version + "."
 	}
 	if n.ReplacedBy != "" {
 		s += fmt.Sprintf(` It is replaced by "%v".`, n.ReplacedBy)
@@ -34,7 +34,8 @@ func (n *Notice) ToString() string {
 }
 
 const (
-	deprecated  = "deprecated"  // plugin/option is deprecated
+	deprecated  = "deprecated"  // plugin/option is deprecated in CoreDNS
-	removed     = "removed"     // plugin/option has been removed
+	ignored     = "ignored"     // plugin/option is ignored by CoreDNS
+	removed     = "removed"     // plugin/option has been removed from CoreDNS
 	unsupported = "unsupported" // plugin/option is not supported by the migration tool
 )

kubernetes/migration/versions.go

@@ -63,7 +63,7 @@ var Versions = map[string]release{
 						action: removeOption,
 					},
 					"endpoint": {
-						status: deprecated,
+						status: ignored,
 						action: removeExtraEndpoints,
 					},
 					"tls":                {},
@@ -72,6 +72,10 @@ var Versions = map[string]release{
 					"labels":             {},
 					"pods":               {},
 					"endpoint_pod_names": {},
+					"upstream": {
+						status: ignored,
+						action: removeOption,
+					},
 					"ttl":                {},
 					"noendpoints":        {},
 					"transfer":           {},
@@ -120,7 +124,7 @@ var Versions = map[string]release{
 				options: map[string]option{
 					"resyncperiod": {},
 					"endpoint": {
-						status: deprecated,
+						status: ignored,
 						action: removeExtraEndpoints,
 					},
 					"tls":                {},