Files
kustomize/plugin/someteam.example.com/v1/dateprefixer/DatePrefixer.go
2019-11-06 18:31:33 -08:00

65 lines
1.4 KiB
Go

// Copyright 2019 The Kubernetes Authors.
// SPDX-License-Identifier: Apache-2.0
package main
import (
"github.com/pkg/errors"
"sigs.k8s.io/kustomize/api/builtins"
"sigs.k8s.io/kustomize/api/resmap"
"sigs.k8s.io/kustomize/api/types"
"sigs.k8s.io/yaml"
)
// Add a date prefix to the name.
// A plugin that adapts another plugin.
type plugin struct {
t resmap.Transformer
}
//nolint: golint
//noinspection GoUnusedGlobalVariable
var KustomizePlugin plugin
func (p *plugin) makePrefixSuffixPluginConfig() ([]byte, error) {
var s struct {
Prefix string
Suffix string
FieldSpecs []types.FieldSpec
}
s.Prefix = getDate() + "-"
s.FieldSpecs = []types.FieldSpec{
{Path: "metadata/name"},
}
return yaml.Marshal(s)
}
func (p *plugin) Config(h *resmap.PluginHelpers, _ []byte) error {
// Ignore the incoming c, compute new config.
c, err := p.makePrefixSuffixPluginConfig()
if err != nil {
return errors.Wrapf(
err, "dateprefixer makeconfig")
}
prefixer := builtins.NewPrefixSuffixTransformerPlugin()
err = prefixer.Config(h, c)
if err != nil {
return errors.Wrapf(
err, "prefixsuffix configure")
}
p.t = prefixer
return nil
}
// Returns a constant, rather than
// time.Now().Format("2006-01-02")
// to make tests happy.
// This is just an example.
func getDate() string {
return "2018-05-11"
}
func (p *plugin) Transform(m resmap.ResMap) error {
return p.t.Transform(m)
}