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// Copyright 2020 The Kubernetes Authors.
// SPDX-License-Identifier: Apache-2.0
package generators
import (
"fmt"
"path"
"strings"
"github.com/go-errors/errors"
"sigs.k8s.io/kustomize/api/ifc"
"sigs.k8s.io/kustomize/api/types"
"sigs.k8s.io/kustomize/kyaml/yaml"
)
func makeBaseNode(kind, name, namespace string) (*yaml.RNode, error) {
rn, err := yaml.Parse(fmt.Sprintf(`
apiVersion: v1
kind: %s
`, kind))
if err != nil {
return nil, err
}
if name == "" {
return nil, errors.Errorf("a configmap must have a name")
}
if _, err := rn.Pipe(yaml.SetK8sName(name)); err != nil {
return nil, err
}
if namespace != "" {
if _, err := rn.Pipe(yaml.SetK8sNamespace(namespace)); err != nil {
return nil, err
}
}
return rn, nil
}
func makeValidatedDataMap(
ldr ifc.KvLoader, name string, sources types.KvPairSources) (map[string]string, error) {
pairs, err := ldr.Load(sources)
if err != nil {
return nil, errors.WrapPrefix(err, "loading KV pairs", 0)
}
knownKeys := make(map[string]string)
for _, p := range pairs {
// legal key: alphanumeric characters, '-', '_' or '.'
if err := ldr.Validator().ErrIfInvalidKey(p.Key); err != nil {
return nil, err
}
if _, ok := knownKeys[p.Key]; ok {
return nil, errors.Errorf(
"configmap %s illegally repeats the key `%s`", name, p.Key)
}
knownKeys[p.Key] = p.Value
}
return knownKeys, nil
}
// copyLabelsAndAnnotations copies labels and annotations from
// GeneratorOptions into the given object.
func copyLabelsAndAnnotations(
rn *yaml.RNode, opts *types.GeneratorOptions) error {
if opts == nil {
return nil
}
for _, k := range yaml.SortedMapKeys(opts.Labels) {
v := opts.Labels[k]
if _, err := rn.Pipe(yaml.SetLabel(k, v)); err != nil {
return err
}
}
for _, k := range yaml.SortedMapKeys(opts.Annotations) {
v := opts.Annotations[k]
if _, err := rn.Pipe(yaml.SetAnnotation(k, v)); err != nil {
return err
}
}
return nil
}
func setImmutable(
rn *yaml.RNode, opts *types.GeneratorOptions) error {
if opts == nil {
return nil
}
if opts.Immutable {
n := &yaml.Node{
Kind: yaml.ScalarNode,
Value: "true",
Tag: yaml.NodeTagBool,
}
if _, err := rn.Pipe(yaml.FieldSetter{Name: "immutable", Value: yaml.NewRNode(n)}); err != nil {
return err
}
}
return nil
}
// ParseFileSource parses the source given.
//
// Acceptable formats include:
// 1. source-path: the basename will become the key name
// 2. source-name=source-path: the source-name will become the key name and
// source-path is the path to the key file.
//
// Key names cannot include '='.
func ParseFileSource(source string) (keyName, filePath string, err error) {
numSeparators := strings.Count(source, "=")
switch {
case numSeparators == 0:
return path.Base(source), source, nil
case numSeparators == 1 && strings.HasPrefix(source, "="):
return "", "", errors.Errorf("missing key name for file path %q in source %q", strings.TrimPrefix(source, "="), source)
case numSeparators == 1 && strings.HasSuffix(source, "="):
return "", "", errors.Errorf("missing file path for key name %q in source %q", strings.TrimSuffix(source, "="), source)
case numSeparators > 1:
return "", "", errors.Errorf("source %q key name or file path contains '='", source)
default:
components := strings.Split(source, "=")
return components[0], components[1], nil
}
}
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