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// Copyright 2020 The Kubernetes Authors.
// SPDX-License-Identifier: Apache-2.0
package fsslice_test
import (
"bytes"
"log"
"os"
"sigs.k8s.io/kustomize/api/filters/filtersutil"
"sigs.k8s.io/kustomize/api/filters/fsslice"
"sigs.k8s.io/kustomize/api/types"
"sigs.k8s.io/kustomize/kyaml/kio"
"sigs.k8s.io/kustomize/kyaml/yaml"
)
func ExampleFilter() {
in := &kio.ByteReader{
Reader: bytes.NewBufferString(`
apiVersion: example.com/v1
kind: Foo
metadata:
name: instance
---
apiVersion: example.com/v1
kind: Bar
metadata:
name: instance
`),
}
fltr := fsslice.Filter{
CreateKind: yaml.ScalarNode,
SetValue: filtersutil.SetScalar("green"),
FsSlice: []types.FieldSpec{
{Path: "a/b", CreateIfNotPresent: true},
},
}
err := kio.Pipeline{
Inputs: []kio.Reader{in},
Filters: []kio.Filter{kio.FilterAll(fltr)},
Outputs: []kio.Writer{kio.ByteWriter{Writer: os.Stdout}},
}.Execute()
if err != nil {
log.Fatal(err)
}
// Output:
// apiVersion: example.com/v1
// kind: Foo
// metadata:
// name: instance
// a:
// b: green
// ---
// apiVersion: example.com/v1
// kind: Bar
// metadata:
// name: instance
// a:
// b: green
}
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