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137 lines
3.3 KiB
137 lines
3.3 KiB
/*
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Copyright The Helm Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package main // import "helm.sh/helm/cmd/helm"
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import (
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"flag"
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"fmt"
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"log"
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"os"
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"strings"
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"sync"
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"github.com/spf13/pflag"
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"k8s.io/cli-runtime/pkg/genericclioptions"
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"k8s.io/klog"
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// Import to initialize client auth plugins.
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_ "k8s.io/client-go/plugin/pkg/client/auth"
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"helm.sh/helm/pkg/action"
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"helm.sh/helm/pkg/cli"
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"helm.sh/helm/pkg/kube"
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"helm.sh/helm/pkg/storage"
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"helm.sh/helm/pkg/storage/driver"
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)
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var (
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settings cli.EnvSettings
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config genericclioptions.RESTClientGetter
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configOnce sync.Once
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)
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func init() {
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log.SetFlags(log.Lshortfile)
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}
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func logf(format string, v ...interface{}) {
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if settings.Debug {
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format = fmt.Sprintf("[debug] %s\n", format)
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log.Output(2, fmt.Sprintf(format, v...))
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}
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}
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func initKubeLogs() {
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pflag.CommandLine.SetNormalizeFunc(wordSepNormalizeFunc)
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gofs := flag.NewFlagSet("klog", flag.ExitOnError)
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klog.InitFlags(gofs)
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pflag.CommandLine.AddGoFlagSet(gofs)
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pflag.CommandLine.Set("logtostderr", "true")
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}
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func main() {
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initKubeLogs()
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actionConfig := new(action.Configuration)
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cmd := newRootCmd(actionConfig, os.Stdout, os.Args[1:])
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// Initialize the rest of the actionConfig
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initActionConfig(actionConfig, false)
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if err := cmd.Execute(); err != nil {
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logf("%+v", err)
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os.Exit(1)
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}
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}
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func initActionConfig(actionConfig *action.Configuration, allNamespaces bool) {
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kc := kube.New(kubeConfig())
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kc.Log = logf
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clientset, err := kc.KubernetesClientSet()
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if err != nil {
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// TODO return error
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log.Fatal(err)
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}
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var namespace string
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if !allNamespaces {
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namespace = getNamespace()
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}
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var store *storage.Storage
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switch os.Getenv("HELM_DRIVER") {
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case "secret", "secrets", "":
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d := driver.NewSecrets(clientset.CoreV1().Secrets(namespace))
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d.Log = logf
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store = storage.Init(d)
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case "configmap", "configmaps":
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d := driver.NewConfigMaps(clientset.CoreV1().ConfigMaps(namespace))
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d.Log = logf
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store = storage.Init(d)
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case "memory":
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d := driver.NewMemory()
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store = storage.Init(d)
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default:
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// Not sure what to do here.
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panic("Unknown driver in HELM_DRIVER: " + os.Getenv("HELM_DRIVER"))
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}
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actionConfig.RESTClientGetter = kubeConfig()
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actionConfig.KubeClient = kc
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actionConfig.Releases = store
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actionConfig.Log = logf
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}
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func kubeConfig() genericclioptions.RESTClientGetter {
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configOnce.Do(func() {
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config = kube.GetConfig(settings.KubeConfig, settings.KubeContext, settings.Namespace)
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})
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return config
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}
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func getNamespace() string {
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if ns, _, err := kubeConfig().ToRawKubeConfigLoader().Namespace(); err == nil {
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return ns
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}
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return "default"
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}
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// wordSepNormalizeFunc changes all flags that contain "_" separators
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func wordSepNormalizeFunc(f *pflag.FlagSet, name string) pflag.NormalizedName {
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return pflag.NormalizedName(strings.ReplaceAll(name, "_", "-"))
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}
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