101 lines
2.9 KiB
Go
101 lines
2.9 KiB
Go
/*
|
|
Copyright 2020 The Flux CD contributors.
|
|
|
|
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 helm
|
|
|
|
import (
|
|
"fmt"
|
|
"io/ioutil"
|
|
"os"
|
|
"path/filepath"
|
|
|
|
"helm.sh/helm/v3/pkg/getter"
|
|
corev1 "k8s.io/api/core/v1"
|
|
)
|
|
|
|
func ClientOptionsFromSecret(secret corev1.Secret) ([]getter.Option, func(), error) {
|
|
var opts []getter.Option
|
|
basicAuth, err := BasicAuthFromSecret(secret)
|
|
if err != nil {
|
|
return opts, nil, err
|
|
}
|
|
if basicAuth != nil {
|
|
opts = append(opts, basicAuth)
|
|
}
|
|
tlsClientConfig, cleanup, err := TLSClientConfigFromSecret(secret)
|
|
if err != nil {
|
|
return opts, nil, err
|
|
}
|
|
if tlsClientConfig != nil {
|
|
opts = append(opts, tlsClientConfig)
|
|
}
|
|
return opts, cleanup, nil
|
|
}
|
|
|
|
func BasicAuthFromSecret(secret corev1.Secret) (getter.Option, error) {
|
|
username, password := string(secret.Data["username"]), string(secret.Data["password"])
|
|
switch {
|
|
case username == "" && password == "":
|
|
return nil, nil
|
|
case username == "" || password == "":
|
|
return nil, fmt.Errorf("invalid '%s' secret data: required fields 'username' and 'password'", secret.Name)
|
|
}
|
|
return getter.WithBasicAuth(username, password), nil
|
|
}
|
|
|
|
func TLSClientConfigFromSecret(secret corev1.Secret) (getter.Option, func(), error) {
|
|
certBytes, keyBytes, caBytes := secret.Data["certFile"], secret.Data["keyFile"], secret.Data["caFile"]
|
|
switch {
|
|
case len(certBytes)+len(keyBytes)+len(caBytes) == 0:
|
|
return nil, nil, nil
|
|
case (len(certBytes) > 0 && len(keyBytes) == 0) || (len(keyBytes) > 0 && len(certBytes) == 0):
|
|
return nil, nil, fmt.Errorf("invalid '%s' secret data: fields 'certFile' and 'keyFile' require each other's presence",
|
|
secret.Name)
|
|
}
|
|
|
|
// create tmp dir for TLS files
|
|
tmp, err := ioutil.TempDir("", "helm-tls-"+secret.Name)
|
|
if err != nil {
|
|
return nil, nil, err
|
|
}
|
|
cleanup := func() { os.RemoveAll(tmp) }
|
|
|
|
var certFile, keyFile, caFile string
|
|
|
|
if len(certBytes) > 0 && len(keyBytes) > 0 {
|
|
certFile = filepath.Join(tmp, "cert.crt")
|
|
if err := ioutil.WriteFile(certFile, certBytes, 0644); err != nil {
|
|
cleanup()
|
|
return nil, nil, err
|
|
}
|
|
keyFile = filepath.Join(tmp, "key.crt")
|
|
if err := ioutil.WriteFile(keyFile, keyBytes, 0644); err != nil {
|
|
cleanup()
|
|
return nil, nil, err
|
|
}
|
|
}
|
|
|
|
if len(caBytes) > 0 {
|
|
caFile = filepath.Join(tmp, "ca.pem")
|
|
if err := ioutil.WriteFile(caFile, caBytes, 0644); err != nil {
|
|
cleanup()
|
|
return nil, nil, err
|
|
}
|
|
}
|
|
|
|
return getter.WithTLSClientConfig(certFile, keyFile, caFile), cleanup, nil
|
|
}
|