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strategy.go
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/
strategy.go
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// Copyright 2022 OnMetal 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 machine
import (
"context"
"fmt"
"net"
"net/http"
"net/url"
"github.com/onmetal/onmetal-api/internal/api"
"github.com/onmetal/onmetal-api/internal/apis/compute"
"github.com/onmetal/onmetal-api/internal/apis/compute/validation"
"github.com/onmetal/onmetal-api/internal/machinepoollet/client"
apierrors "k8s.io/apimachinery/pkg/api/errors"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/fields"
"k8s.io/apimachinery/pkg/labels"
"k8s.io/apimachinery/pkg/runtime"
"k8s.io/apimachinery/pkg/util/validation/field"
"k8s.io/apiserver/pkg/registry/generic"
apisrvstorage "k8s.io/apiserver/pkg/storage"
"k8s.io/apiserver/pkg/storage/names"
"k8s.io/client-go/tools/cache"
"sigs.k8s.io/structured-merge-diff/v4/fieldpath"
)
func GetAttrs(obj runtime.Object) (labels.Set, fields.Set, error) {
machine, ok := obj.(*compute.Machine)
if !ok {
return nil, nil, fmt.Errorf("given object is not a Machine")
}
return machine.Labels, SelectableFields(machine), nil
}
func MatchMachine(label labels.Selector, field fields.Selector) apisrvstorage.SelectionPredicate {
return apisrvstorage.SelectionPredicate{
Label: label,
Field: field,
GetAttrs: GetAttrs,
IndexFields: []string{compute.MachineMachinePoolRefNameField},
}
}
func machineMachinePoolRefName(machine *compute.Machine) string {
if machinePoolRef := machine.Spec.MachinePoolRef; machinePoolRef != nil {
return machinePoolRef.Name
}
return ""
}
func machineMachineClassRefName(machine *compute.Machine) string {
return machine.Spec.MachineClassRef.Name
}
func SelectableFields(machine *compute.Machine) fields.Set {
fieldsSet := make(fields.Set)
fieldsSet[compute.MachineMachinePoolRefNameField] = machineMachinePoolRefName(machine)
fieldsSet[compute.MachineMachineClassRefNameField] = machineMachineClassRefName(machine)
return generic.AddObjectMetaFieldsSet(fieldsSet, &machine.ObjectMeta, true)
}
func MachinePoolRefNameIndexFunc(obj any) ([]string, error) {
machine, ok := obj.(*compute.Machine)
if !ok {
return nil, fmt.Errorf("not a machine")
}
return []string{machineMachinePoolRefName(machine)}, nil
}
func MachinePoolRefNameTriggerFunc(obj runtime.Object) string {
return machineMachinePoolRefName(obj.(*compute.Machine))
}
func Indexers() *cache.Indexers {
return &cache.Indexers{
apisrvstorage.FieldIndex(compute.MachineMachinePoolRefNameField): MachinePoolRefNameIndexFunc,
}
}
type machineStrategy struct {
runtime.ObjectTyper
names.NameGenerator
}
var Strategy = machineStrategy{api.Scheme, names.SimpleNameGenerator}
func (machineStrategy) NamespaceScoped() bool {
return true
}
func (machineStrategy) PrepareForCreate(ctx context.Context, obj runtime.Object) {
}
func (machineStrategy) PrepareForUpdate(ctx context.Context, obj, old runtime.Object) {
}
func (machineStrategy) Validate(ctx context.Context, obj runtime.Object) field.ErrorList {
machine := obj.(*compute.Machine)
return validation.ValidateMachine(machine)
}
func (machineStrategy) WarningsOnCreate(ctx context.Context, obj runtime.Object) []string {
return nil
}
func (machineStrategy) AllowCreateOnUpdate() bool {
return false
}
func (machineStrategy) AllowUnconditionalUpdate() bool {
return false
}
func (machineStrategy) Canonicalize(obj runtime.Object) {
}
func (machineStrategy) ValidateUpdate(ctx context.Context, obj, old runtime.Object) field.ErrorList {
oldMachine := old.(*compute.Machine)
newMachine := obj.(*compute.Machine)
return validation.ValidateMachineUpdate(newMachine, oldMachine)
}
func (machineStrategy) WarningsOnUpdate(ctx context.Context, obj, old runtime.Object) []string {
return nil
}
type machineStatusStrategy struct {
machineStrategy
}
var StatusStrategy = machineStatusStrategy{Strategy}
func (machineStatusStrategy) GetResetFields() map[fieldpath.APIVersion]*fieldpath.Set {
return map[fieldpath.APIVersion]*fieldpath.Set{
"compute.api.onmetal.de/v1alpha1": fieldpath.NewSet(
fieldpath.MakePathOrDie("spec"),
),
}
}
func (machineStatusStrategy) PrepareForUpdate(ctx context.Context, obj, old runtime.Object) {
newMachine := obj.(*compute.Machine)
oldMachine := old.(*compute.Machine)
newMachine.Spec = oldMachine.Spec
}
func (machineStatusStrategy) ValidateUpdate(ctx context.Context, obj, old runtime.Object) field.ErrorList {
newMachine := obj.(*compute.Machine)
oldMachine := old.(*compute.Machine)
return validation.ValidateMachineUpdate(newMachine, oldMachine)
}
func (machineStatusStrategy) WarningsOnUpdate(cxt context.Context, obj, old runtime.Object) []string {
return nil
}
type ResourceGetter interface {
Get(ctx context.Context, name string, options *metav1.GetOptions) (runtime.Object, error)
}
func ExecLocation(
ctx context.Context,
getter ResourceGetter,
connInfo client.ConnectionInfoGetter,
name string,
opts *compute.MachineExecOptions,
) (*url.URL, http.RoundTripper, error) {
machine, err := getMachine(ctx, getter, name)
if err != nil {
return nil, nil, err
}
machinePoolRef := machine.Spec.MachinePoolRef
if machinePoolRef == nil {
return nil, nil, apierrors.NewBadRequest(fmt.Sprintf("machine %s has no machine pool assigned", name))
}
machinePoolName := machinePoolRef.Name
machinePoolInfo, err := connInfo.GetConnectionInfo(ctx, machinePoolName)
if err != nil {
return nil, nil, err
}
loc := &url.URL{
Scheme: machinePoolInfo.Scheme,
Host: net.JoinHostPort(machinePoolInfo.Hostname, machinePoolInfo.Port),
Path: fmt.Sprintf("/apis/compute.api.onmetal.de/namespaces/%s/machines/%s/exec", machine.Namespace, machine.Name),
}
transport := machinePoolInfo.Transport
if opts.InsecureSkipTLSVerifyBackend {
transport = machinePoolInfo.InsecureSkipTLSVerifyTransport
}
return loc, transport, nil
}
func getMachine(ctx context.Context, getter ResourceGetter, name string) (*compute.Machine, error) {
obj, err := getter.Get(ctx, name, &metav1.GetOptions{})
if err != nil {
return nil, err
}
machine, ok := obj.(*compute.Machine)
if !ok {
return nil, fmt.Errorf("unexpected object type %T", obj)
}
return machine, nil
}