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dynamic.go
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/
dynamic.go
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// Copyright © 2019 Banzai Cloud
//
// 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 k8sclient
import (
"bytes"
"context"
"io"
"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
"k8s.io/apimachinery/pkg/util/yaml"
"sigs.k8s.io/controller-runtime/pkg/client"
)
// DynamicFileClient interacts with a cluster with file manifests.
type DynamicFileClient struct {
client client.Client
}
// NewDynamicFileClient returns a new DynamicFileClient.
func NewDynamicFileClient(client client.Client) DynamicFileClient {
return DynamicFileClient{
client: client,
}
}
// Create iterates a set of YAML documents and calls client.Create on them.
func (c DynamicFileClient) Create(ctx context.Context, file []byte) error {
decoder := yaml.NewYAMLOrJSONDecoder(bytes.NewReader(file), 4096)
var objects []unstructured.Unstructured
for {
var object unstructured.Unstructured
if err := decoder.Decode(&object); err != nil {
if err == io.EOF {
break
}
return err
}
objects = append(objects, object)
}
for _, object := range objects {
if err := c.client.Create(ctx, &object); err != nil {
return err
}
}
return nil
}