mirror of https://github.com/kubernetes/kops.git
133 lines
3.4 KiB
Go
133 lines
3.4 KiB
Go
/*
|
|
Copyright 2019 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 cloudup
|
|
|
|
import (
|
|
"context"
|
|
"fmt"
|
|
"reflect"
|
|
|
|
"k8s.io/apimachinery/pkg/util/sets"
|
|
"k8s.io/klog/v2"
|
|
"k8s.io/kops/upup/pkg/fi"
|
|
"k8s.io/kops/util/pkg/reflectutils"
|
|
)
|
|
|
|
type Loader struct {
|
|
Builders []fi.CloudupModelBuilder
|
|
|
|
tasks map[string]fi.CloudupTask
|
|
}
|
|
|
|
func (l *Loader) Init() {
|
|
l.tasks = make(map[string]fi.CloudupTask)
|
|
}
|
|
|
|
func (l *Loader) BuildTasks(ctx context.Context, lifecycleOverrides map[string]fi.Lifecycle) (map[string]fi.CloudupTask, error) {
|
|
for _, builder := range l.Builders {
|
|
context := &fi.CloudupModelBuilderContext{
|
|
Tasks: l.tasks,
|
|
LifecycleOverrides: lifecycleOverrides,
|
|
}
|
|
context = context.WithContext(ctx)
|
|
err := builder.Build(context)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
l.tasks = context.Tasks
|
|
}
|
|
|
|
err := l.processDeferrals()
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
return l.tasks, nil
|
|
}
|
|
|
|
func (l *Loader) processDeferrals() error {
|
|
for taskKey, task := range l.tasks {
|
|
taskValue := reflect.ValueOf(task)
|
|
|
|
visitor := func(path *reflectutils.FieldPath, f *reflect.StructField, v reflect.Value) error {
|
|
if reflectutils.IsPrimitiveValue(v) {
|
|
return nil
|
|
}
|
|
|
|
if path.IsEmpty() {
|
|
// Don't process top-level value
|
|
return nil
|
|
}
|
|
|
|
switch v.Kind() {
|
|
case reflect.Interface, reflect.Ptr:
|
|
if v.CanInterface() && !v.IsNil() {
|
|
// TODO: Can we / should we use a type-switch statement
|
|
intf := v.Interface()
|
|
if hn, ok := intf.(fi.HasName); ok {
|
|
name := hn.GetName()
|
|
if name != nil {
|
|
typeNameForTask := fi.TypeNameForTask(intf)
|
|
primary := l.tasks[typeNameForTask+"/"+*name]
|
|
if primary == nil {
|
|
keys := sets.NewString()
|
|
for k := range l.tasks {
|
|
keys.Insert(k)
|
|
}
|
|
klog.Infof("Known tasks:")
|
|
for _, k := range keys.List() {
|
|
klog.Infof(" %s", k)
|
|
}
|
|
|
|
return fmt.Errorf("unable to find task %q, referenced from %s:%s", typeNameForTask+"/"+*name, taskKey, path)
|
|
}
|
|
|
|
klog.V(11).Infof("Replacing task %q at %s:%s", *name, taskKey, path)
|
|
v.Set(reflect.ValueOf(primary))
|
|
}
|
|
return reflectutils.SkipReflection
|
|
}
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
err := reflectutils.ReflectRecursive(taskValue, visitor, &reflectutils.ReflectOptions{DeprecatedDoubleVisit: true})
|
|
if err != nil {
|
|
return fmt.Errorf("unexpected error resolving task %q: %v", taskKey, err)
|
|
}
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func (l *Loader) FindDeletions(cloud fi.Cloud, lifecycleOverrides map[string]fi.Lifecycle) (map[string]fi.CloudupTask, error) {
|
|
for _, builder := range l.Builders {
|
|
if hasDeletions, ok := builder.(fi.HasDeletions); ok {
|
|
context := &fi.CloudupModelBuilderContext{
|
|
Tasks: l.tasks,
|
|
LifecycleOverrides: lifecycleOverrides,
|
|
}
|
|
if err := hasDeletions.FindDeletions(context, cloud); err != nil {
|
|
return nil, err
|
|
}
|
|
l.tasks = context.Tasks
|
|
}
|
|
}
|
|
return l.tasks, nil
|
|
}
|