update corefile-migration library dep to 1.0.11 which supports up to coredns v1.8.0

vendor/github.com/coredns/corefile-migration/migration/migrate.go

@@ -140,6 +140,15 @@ func Migrate(fromCoreDNSVersion, toCoreDNSVersion, corefileStr string, deprecati
 	v := fromCoreDNSVersion
 	for {
 		v = Versions[v].nextVersion
+
+		// apply any global corefile level pre-processing
+		if Versions[v].preProcess != nil {
+			cf, err = Versions[v].preProcess(cf)
+			if err != nil {
+				return "", err
+			}
+		}
+
 		newSrvs := []*corefile.Server{}
 		for _, s := range cf.Servers {
 			newPlugs := []*corefile.Plugin{}

vendor/github.com/coredns/corefile-migration/migration/plugins.go

@@ -198,6 +198,46 @@ var plugins = map[string]map[string]plugin{
 				"ignore":      {},
 			},
 		},
+		"v8 remove transfer option": plugin{
+			namedOptions: map[string]option{
+				"endpoint": {
+					status: ignored,
+					action: useFirstArgumentOnly,
+				},
+				"tls":                {},
+				"kubeconfig":         {},
+				"namespaces":         {},
+				"labels":             {},
+				"pods":               {},
+				"endpoint_pod_names": {},
+				"ttl":                {},
+				"noendpoints":        {},
+				"transfer": {
+					status: removed,
+					action: removeOption,
+				},
+				"fallthrough": {},
+				"ignore":      {},
+			},
+		},
+		"v8": plugin{
+			namedOptions: map[string]option{
+				"endpoint": {
+					status: ignored,
+					action: useFirstArgumentOnly,
+				},
+				"tls":                {},
+				"kubeconfig":         {},
+				"namespaces":         {},
+				"labels":             {},
+				"pods":               {},
+				"endpoint_pod_names": {},
+				"ttl":                {},
+				"noendpoints":        {},
+				"fallthrough":        {},
+				"ignore":             {},
+			},
+		},
 	},
 
 	"errors": {
@@ -318,6 +358,20 @@ var plugins = map[string]map[string]plugin{
 			},
 		},
 		"v3": plugin{
+			namedOptions: map[string]option{
+				"except":         {},
+				"force_tcp":      {},
+				"prefer_udp":     {},
+				"expire":         {},
+				"max_fails":      {},
+				"tls":            {},
+				"tls_servername": {},
+				"policy":         {},
+				"health_check":   {},
+				"max_concurrent": {},
+			},
+		},
+		"v3 add max_concurrent": plugin{
 			namedOptions: map[string]option{
 				"except":         {},
 				"force_tcp":      {},
@@ -390,6 +444,14 @@ var plugins = map[string]map[string]plugin{
 			namedOptions: proxyToForwardOptionsMigrations,
 		},
 	},
+
+	"transfer": {
+		"v1": plugin{
+			namedOptions: map[string]option{
+				"to": {},
+			},
+		},
+	},
 }
 
 func removePlugin(*corefile.Plugin) (*corefile.Plugin, error) { return nil, nil }
@@ -418,6 +480,36 @@ func addToServerBlockWithPlugins(sb *corefile.Server, newPlugin *corefile.Plugin
 	return sb, nil
 }
 
+func copyKubernetesTransferOptToPlugin(cf *corefile.Corefile) (*corefile.Corefile, error) {
+	for _, s := range cf.Servers {
+		var (
+			to   []string
+			zone string
+		)
+		for _, p := range s.Plugins {
+			if p.Name != "kubernetes" {
+				continue
+			}
+			zone = p.Args[0]
+			for _, o := range p.Options {
+				if o.Name != "transfer" {
+					continue
+				}
+				to = o.Args
+			}
+		}
+		if len(to) < 2 {
+			continue
+		}
+		s.Plugins = append(s.Plugins, &corefile.Plugin{
+			Name:    "transfer",
+			Args:    []string{zone},
+			Options: []*corefile.Option{{Name: "to", Args: to[1:]}},
+		})
+	}
+	return cf, nil
+}
+
 func addToKubernetesServerBlocks(sb *corefile.Server, newPlugin *corefile.Plugin) (*corefile.Server, error) {
 	return addToServerBlockWithPlugins(sb, newPlugin, []string{"kubernetes"})
 }

vendor/github.com/coredns/corefile-migration/migration/versions.go

@@ -12,10 +12,11 @@ type release struct {
 	dockerImageSHA string            // the docker image SHA for this release
 	plugins        map[string]plugin // map of plugins with deprecation status and migration actions for this release
 
-	// postProcess is a post processing action to take on the corefile as a whole.  Used for complex migration
+	// pre/postProcess are processing actions to take on the corefile as a whole.  Used for complex migration
 	//   tasks that dont fit well into the modular plugin/option migration framework. For example, when the
 	//   action on a plugin would need to extend beyond the scope of that plugin (affecting other plugins, or
 	//   server blocks, etc). e.g. Splitting plugins out into separate server blocks.
+	preProcess corefileAction
 	postProcess corefileAction
 
 	// defaultConf holds the default Corefile template packaged with the corresponding k8sReleases.
@@ -29,7 +30,53 @@ type release struct {
 
 // Versions holds a map of plugin/option migrations per CoreDNS release (since 1.1.4)
 var Versions = map[string]release{
+	"1.8.0": {
+		priorVersion:   "1.7.1",
+		dockerImageSHA: "TBD",
+		plugins: map[string]plugin{
+			"errors":       plugins["errors"]["v2"],
+			"log":          plugins["log"]["v1"],
+			"health":       plugins["health"]["v1"],
+			"ready":        {},
+			"autopath":     {},
+			"kubernetes":   plugins["kubernetes"]["v8 remove transfer option"],
+			"k8s_external": plugins["k8s_external"]["v1"],
+			"prometheus":   {},
+			"forward":      plugins["forward"]["v3"],
+			"cache":        plugins["cache"]["v1"],
+			"loop":         {},
+			"reload":       {},
+			"loadbalance":  {},
+			"hosts":        plugins["hosts"]["v1"],
+			"rewrite":      plugins["rewrite"]["v2"],
+			"transfer":     plugins["transfer"]["v1"],
+		},
+		preProcess: copyKubernetesTransferOptToPlugin,
+	},
+	"1.7.1": {
+		nextVersion:    "1.8.0",
+		priorVersion:   "1.7.0",
+		dockerImageSHA: "4a6e0769130686518325b21b0c1d0688b54e7c79244d48e1b15634e98e40c6ef",
+		plugins: map[string]plugin{
+			"errors":       plugins["errors"]["v2"],
+			"log":          plugins["log"]["v1"],
+			"health":       plugins["health"]["v1"],
+			"ready":        {},
+			"autopath":     {},
+			"kubernetes":   plugins["kubernetes"]["v7"],
+			"k8s_external": plugins["k8s_external"]["v1"],
+			"prometheus":   {},
+			"forward":      plugins["forward"]["v3"],
+			"cache":        plugins["cache"]["v1"],
+			"loop":         {},
+			"reload":       {},
+			"loadbalance":  {},
+			"hosts":        plugins["hosts"]["v1"],
+			"rewrite":      plugins["rewrite"]["v2"],
+		},
+	},
 	"1.7.0": {
+		nextVersion:    "1.7.1",
 		priorVersion:   "1.6.9",
 		k8sReleases:    []string{"1.19"},
 		dockerImageSHA: "73ca82b4ce829766d4f1f10947c3a338888f876fbed0540dc849c89ff256e90c",
@@ -62,7 +109,7 @@ var Versions = map[string]release{
 			"kubernetes":   plugins["kubernetes"]["v7"],
 			"k8s_external": plugins["k8s_external"]["v1"],
 			"prometheus":   {},
-			"forward":      plugins["forward"]["v3"],
+			"forward":      plugins["forward"]["v3 add max_concurrent"],
 			"cache":        plugins["cache"]["v1"],
 			"loop":         {},
 			"reload":       {},
@@ -84,7 +131,7 @@ var Versions = map[string]release{
 			"kubernetes":   plugins["kubernetes"]["v6"],
 			"k8s_external": plugins["k8s_external"]["v1"],
 			"prometheus":   {},
-			"forward":      plugins["forward"]["v2"],
+			"forward":      plugins["forward"]["v3"],
 			"cache":        plugins["cache"]["v2"],
 			"loop":         {},
 			"reload":       {},