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apply.go
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apply.go
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// Copyright 2024 Upbound Inc
//
// 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 importer
import (
"context"
"github.com/crossplane/crossplane-runtime/pkg/errors"
"github.com/crossplane/crossplane-runtime/pkg/resource"
"k8s.io/apimachinery/pkg/api/meta"
v1 "k8s.io/apimachinery/pkg/apis/meta/v1"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/client-go/dynamic"
"k8s.io/client-go/util/retry"
)
type ResourceApplier interface {
ApplyResources(ctx context.Context, resources []unstructured.Unstructured, applyStatus bool) error
ModifyResources(ctx context.Context, resources []unstructured.Unstructured, modify func(*unstructured.Unstructured) error) error
}
type UnstructuredResourceApplier struct {
dynamicClient dynamic.Interface
resourceMapper meta.RESTMapper
}
func NewUnstructuredResourceApplier(dynamicClient dynamic.Interface, resourceMapper meta.RESTMapper) *UnstructuredResourceApplier {
return &UnstructuredResourceApplier{
dynamicClient: dynamicClient,
resourceMapper: resourceMapper,
}
}
func (a *UnstructuredResourceApplier) ApplyResources(ctx context.Context, resources []unstructured.Unstructured, applyStatus bool) error {
for i := range resources {
err := retry.OnError(retry.DefaultRetry, resource.IsAPIError, func() error {
rm, err := a.resourceMapper.RESTMapping(resources[i].GroupVersionKind().GroupKind(), resources[i].GroupVersionKind().Version)
if err != nil {
return err
}
rs := resources[i].DeepCopy()
_, err = a.dynamicClient.Resource(rm.Resource).Namespace(resources[i].GetNamespace()).Apply(ctx, resources[i].GetName(), &resources[i], v1.ApplyOptions{
FieldManager: "up-controlplane-migrator",
Force: true,
})
if err != nil {
return err
}
if !applyStatus {
return nil
}
_, err = a.dynamicClient.Resource(rm.Resource).Namespace(resources[i].GetNamespace()).ApplyStatus(ctx, rs.GetName(), rs, v1.ApplyOptions{
FieldManager: "up-controlplane-migrator",
Force: true,
})
if err != nil {
return err
}
return nil
})
if err != nil {
return errors.Wrapf(err, "cannot apply resource %s/%s", resources[i].GetKind(), resources[i].GetName())
}
}
return nil
}
func (a *UnstructuredResourceApplier) ModifyResources(ctx context.Context, resources []unstructured.Unstructured, modify func(*unstructured.Unstructured) error) error {
for i := range resources {
err := retry.OnError(retry.DefaultRetry, resource.IsAPIError, func() error {
rm, err := a.resourceMapper.RESTMapping(resources[i].GroupVersionKind().GroupKind(), resources[i].GroupVersionKind().Version)
if err != nil {
return err
}
u, err := a.dynamicClient.Resource(rm.Resource).Namespace(resources[i].GetNamespace()).Get(ctx, resources[i].GetName(), v1.GetOptions{})
if err != nil {
return err
}
if err := modify(u); err != nil {
return err
}
_, err = a.dynamicClient.Resource(rm.Resource).Namespace(resources[i].GetNamespace()).Update(ctx, u, v1.UpdateOptions{})
if err != nil {
return err
}
return nil
})
if err != nil {
return errors.Wrapf(err, "cannot apply resource %s/%s", resources[i].GetKind(), resources[i].GetName())
}
}
return nil
}