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// Copyright 2021 The Kubernetes Authors.
// SPDX-License-Identifier: Apache-2.0
package main
import (
"fmt"
"sigs.k8s.io/kustomize/api/resmap"
"sigs.k8s.io/yaml"
)
// A silly plugin that duplicates resources with a given name.
// It looks for resources named $Name, and duplicates them N times,
// creating resources named ${Name}-1, ..., ${Name}-N.
// See https://calvinandhobbes.fandom.com/wiki/Duplicator
type plugin struct {
// Name of resource to duplicate.
Name string `json:"name,omitempty" yaml:"name,omitempty"`
// Count is how many duplicates to make.
Count int `json:"count,omitempty" yaml:"count,omitempty"`
}
var KustomizePlugin plugin //nolint:gochecknoglobals
func (p *plugin) Config(_ *resmap.PluginHelpers, c []byte) error {
return yaml.Unmarshal(c, p)
}
func (p *plugin) Transform(m resmap.ResMap) error {
list := m.Resources()
m.Clear()
for _, r := range list {
if r.GetName() == p.Name {
for i := 1; i <= p.Count; i++ {
c := r.DeepCopy()
err := c.SetName(fmt.Sprintf("%s-%d", p.Name, i))
if err != nil {
return err
}
err = m.Append(c)
if err != nil {
return err
}
}
} else {
err := m.Append(r)
if err != nil {
return err
}
}
}
return nil
}
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