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@ -21,13 +21,13 @@ import (
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"fmt"
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"log"
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"os"
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"path/filepath"
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"strings"
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"time"
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"github.com/spf13/cobra"
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"golang.org/x/term"
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corev1 "k8s.io/api/core/v1"
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"k8s.io/cli-runtime/pkg/genericclioptions"
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_ "k8s.io/client-go/plugin/pkg/client/auth"
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"github.com/fluxcd/flux2/pkg/manifestgen/install"
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@ -99,9 +99,6 @@ Command line utility for assembling Kubernetes CD pipelines the GitOps way.`,
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var logger = stderrLogger{stderr: os.Stderr}
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type rootFlags struct {
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kubeconfig string
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kubecontext string
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namespace string
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timeout time.Duration
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verbose bool
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pollInterval time.Duration
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@ -109,19 +106,26 @@ type rootFlags struct {
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}
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var rootArgs = NewRootFlags()
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var kubeconfigArgs = genericclioptions.NewConfigFlags(false)
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func init() {
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rootCmd.PersistentFlags().StringVarP(&rootArgs.namespace, "namespace", "n", rootArgs.defaults.Namespace,
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"the namespace scope for this operation, can be set with FLUX_SYSTEM_NAMESPACE env var")
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rootCmd.RegisterFlagCompletionFunc("namespace", resourceNamesCompletionFunc(corev1.SchemeGroupVersion.WithKind("Namespace")))
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rootCmd.PersistentFlags().DurationVar(&rootArgs.timeout, "timeout", 5*time.Minute, "timeout for this operation")
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rootCmd.PersistentFlags().BoolVar(&rootArgs.verbose, "verbose", false, "print generated objects")
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rootCmd.PersistentFlags().StringVarP(&rootArgs.kubeconfig, "kubeconfig", "", "",
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"absolute path to the kubeconfig file")
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rootCmd.PersistentFlags().StringVarP(&rootArgs.kubecontext, "context", "", "", "kubernetes context to use")
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configureDefaultNamespace()
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kubeconfigArgs.APIServer = nil // prevent AddFlags from configuring --server flag
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kubeconfigArgs.Timeout = nil // prevent AddFlags from configuring --request-timeout flag, we have --timeout instead
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kubeconfigArgs.AddFlags(rootCmd.PersistentFlags())
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// Since some subcommands use the `-s` flag as a short version for `--silent`, we manually configure the server flag
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// without the `-s` short version. While we're no longer on par with kubectl's flags, we maintain backwards compatibility
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// on the CLI interface.
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apiServer := ""
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kubeconfigArgs.APIServer = &apiServer
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rootCmd.PersistentFlags().StringVar(kubeconfigArgs.APIServer, "server", *kubeconfigArgs.APIServer, "The address and port of the Kubernetes API server")
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rootCmd.RegisterFlagCompletionFunc("context", contextsCompletionFunc)
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rootCmd.RegisterFlagCompletionFunc("namespace", resourceNamesCompletionFunc(corev1.SchemeGroupVersion.WithKind("Namespace")))
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rootCmd.DisableAutoGenTag = true
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rootCmd.SetOut(os.Stdout)
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@ -138,30 +142,17 @@ func NewRootFlags() rootFlags {
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func main() {
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log.SetFlags(0)
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configureKubeconfig()
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configureDefaultNamespace()
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if err := rootCmd.Execute(); err != nil {
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logger.Failuref("%v", err)
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os.Exit(1)
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}
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}
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func configureKubeconfig() {
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switch {
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case len(rootArgs.kubeconfig) > 0:
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case len(os.Getenv("KUBECONFIG")) > 0:
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rootArgs.kubeconfig = os.Getenv("KUBECONFIG")
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default:
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if home := homeDir(); len(home) > 0 {
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rootArgs.kubeconfig = filepath.Join(home, ".kube", "config")
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}
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}
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}
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func configureDefaultNamespace() {
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*kubeconfigArgs.Namespace = rootArgs.defaults.Namespace
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fromEnv := os.Getenv("FLUX_SYSTEM_NAMESPACE")
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if fromEnv != "" && rootArgs.namespace == rootArgs.defaults.Namespace {
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rootArgs.namespace = fromEnv
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if fromEnv != "" {
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kubeconfigArgs.Namespace = &fromEnv
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}
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}
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Jakob Schrettenbrunner
3 years ago