add configuration for controller migration.

staging/publishing/rules.yaml

@@ -1640,6 +1640,9 @@ rules:
       branch: master
       dir: staging/src/k8s.io/controller-manager
     name: master
+    dependencies:
+      - repository: apimachinery
+        branch: master
   - source:
       branch: release-1.19
       dir: staging/src/k8s.io/controller-manager

staging/src/k8s.io/controller-manager/BUILD

@@ -21,7 +21,10 @@ filegroup(
 
 filegroup(
     name = "all-srcs",
-    srcs = [":package-srcs"],
+    srcs = [
+        ":package-srcs",
+        "//staging/src/k8s.io/controller-manager/config:all-srcs",
+    ],
     tags = ["automanaged"],
     visibility = ["//visibility:public"],
 )

staging/src/k8s.io/controller-manager/config/BUILD

@@ -0,0 +1,27 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_library")
+
+go_library(
+    name = "go_default_library",
+    srcs = ["types.go"],
+    importmap = "k8s.io/kubernetes/vendor/k8s.io/controller-manager/config",
+    importpath = "k8s.io/controller-manager/config",
+    visibility = ["//visibility:public"],
+    deps = ["//staging/src/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library"],
+)
+
+filegroup(
+    name = "package-srcs",
+    srcs = glob(["**"]),
+    tags = ["automanaged"],
+    visibility = ["//visibility:private"],
+)
+
+filegroup(
+    name = "all-srcs",
+    srcs = [
+        ":package-srcs",
+        "//staging/src/k8s.io/controller-manager/config/v1alpha1:all-srcs",
+    ],
+    tags = ["automanaged"],
+    visibility = ["//visibility:public"],
+)

staging/src/k8s.io/controller-manager/config/types.go

@@ -0,0 +1,49 @@
+/*
+Copyright 2020 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package config
+
+import (
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+)
+
+// LeaderMigrationConfiguration provides versioned configuration for all migrating leader locks.
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
+type LeaderMigrationConfiguration struct {
+	metav1.TypeMeta
+
+	// LeaderName is the name of the leader election resource that protects the migration
+	// E.g. 1-20-KCM-to-1-21-CCM
+	LeaderName string
+
+	// ResourceLock indicates the resource object type that will be used to lock
+	// Should be "leases" or "endpoints"
+	ResourceLock string
+
+	// ControllerLeaders contains a list of migrating leader lock configurations
+	ControllerLeaders []ControllerLeaderConfiguration
+}
+
+// ControllerLeaderConfiguration provides the configuration for a migrating leader lock.
+type ControllerLeaderConfiguration struct {
+	// Name is the name of the controller being migrated
+	// E.g. service-controller, route-controller, cloud-node-controller, etc
+	Name string
+
+	// Component is the name of the component in which the controller should be running.
+	// E.g. kube-controller-manager, cloud-controller-manager, etc
+	Component string
+}

staging/src/k8s.io/controller-manager/config/v1alpha1/BUILD

@@ -0,0 +1,24 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_library")
+
+go_library(
+    name = "go_default_library",
+    srcs = ["types.go"],
+    importmap = "k8s.io/kubernetes/vendor/k8s.io/controller-manager/config/v1alpha1",
+    importpath = "k8s.io/controller-manager/config/v1alpha1",
+    visibility = ["//visibility:public"],
+    deps = ["//staging/src/k8s.io/apimachinery/pkg/apis/meta/v1:go_default_library"],
+)
+
+filegroup(
+    name = "package-srcs",
+    srcs = glob(["**"]),
+    tags = ["automanaged"],
+    visibility = ["//visibility:private"],
+)
+
+filegroup(
+    name = "all-srcs",
+    srcs = [":package-srcs"],
+    tags = ["automanaged"],
+    visibility = ["//visibility:public"],
+)

staging/src/k8s.io/controller-manager/config/v1alpha1/types.go

@@ -0,0 +1,49 @@
+/*
+Copyright 2020 The Kubernetes Authors.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+package config
+
+import (
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+)
+
+// LeaderMigrationConfiguration provides versioned configuration for all migrating leader locks.
+// +k8s:deepcopy-gen:interfaces=k8s.io/apimachinery/pkg/runtime.Object
+type LeaderMigrationConfiguration struct {
+	metav1.TypeMeta `json:",inline"`
+
+	// LeaderName is the name of the leader election resource that protects the migration
+	// E.g. 1-20-KCM-to-1-21-CCM
+	LeaderName string `json:"leaderName"`
+
+	// ResourceLock indicates the resource object type that will be used to lock
+	// Should be "leases" or "endpoints"
+	ResourceLock string `json:"resourceLock"`
+
+	// ControllerLeaders contains a list of migrating leader lock configurations
+	ControllerLeaders []ControllerLeaderConfiguration `json:"controllerLeaders"`
+}
+
+// ControllerLeaderConfiguration provides the configuration for a migrating leader lock.
+type ControllerLeaderConfiguration struct {
+	// Name is the name of the controller being migrated
+	// E.g. service-controller, route-controller, cloud-node-controller, etc
+	Name string `json:"name"`
+
+	// Component is the name of the component in which the controller should be running.
+	// E.g. kube-controller-manager, cloud-controller-manager, etc
+	Component string `json:"component"`
+}

staging/src/k8s.io/controller-manager/go.mod

@@ -4,4 +4,9 @@ module k8s.io/controller-manager
 
 go 1.15
 
-replace k8s.io/controller-manager => ../controller-manager
+require k8s.io/apimachinery v0.0.0
+
+replace (
+	k8s.io/apimachinery => ../apimachinery
+	k8s.io/controller-manager => ../controller-manager
+)