Golang clientcmd.RecommendedConfigOverrideFlags函数代码示例

func defaultClientConfig(flags *pflag.FlagSet) clientcmd.ClientConfig {
	loadingRules := clientcmd.NewDefaultClientConfigLoadingRules()
	flags.StringVar(&loadingRules.ExplicitPath, "kubeconfig", "", "Path to the kubeconfig file to use for CLI requests.")

	overrides := &clientcmd.ConfigOverrides{}
	flagNames := clientcmd.RecommendedConfigOverrideFlags("")

	clientcmd.BindOverrideFlags(overrides, flags, flagNames)
	clientConfig := clientcmd.NewInteractiveDeferredLoadingClientConfig(loadingRules, overrides, os.Stdin)

	return clientConfig
}

// DefaultClientConfig creates a clientcmd.ClientConfig with the following hierarchy:
//   1.  Use the kubeconfig builder.  The number of merges and overrides here gets a little crazy.  Stay with me.
//       1.  Merge together the kubeconfig itself.  This is done with the following hierarchy rules:
//           1.  CommandLineLocation - this parsed from the command line, so it must be late bound.  If you specify this,
//               then no other kubeconfig files are merged.  This file must exist.
//           2.  If $KUBECONFIG is set, then it is treated as a list of files that should be merged.
//	     3.  HomeDirectoryLocation
//           Empty filenames are ignored.  Files with non-deserializable content produced errors.
//           The first file to set a particular value or map key wins and the value or map key is never changed.
//           This means that the first file to set CurrentContext will have its context preserved.  It also means
//           that if two files specify a "red-user", only values from the first file's red-user are used.  Even
//           non-conflicting entries from the second file's "red-user" are discarded.
//       2.  Determine the context to use based on the first hit in this chain
//           1.  command line argument - again, parsed from the command line, so it must be late bound
//           2.  CurrentContext from the merged kubeconfig file
//           3.  Empty is allowed at this stage
//       3.  Determine the cluster info and auth info to use.  At this point, we may or may not have a context.  They
//           are built based on the first hit in this chain.  (run it twice, once for auth, once for cluster)
//           1.  command line argument
//           2.  If context is present, then use the context value
//           3.  Empty is allowed
//       4.  Determine the actual cluster info to use.  At this point, we may or may not have a cluster info.  Build
//           each piece of the cluster info based on the chain:
//           1.  command line argument
//           2.  If cluster info is present and a value for the attribute is present, use it.
//           3.  If you don't have a server location, bail.
//       5.  Auth info is build using the same rules as cluster info, EXCEPT that you can only have one authentication
//           technique per auth info.  The following conditions result in an error:
//           1.  If there are two conflicting techniques specified from the command line, fail.
//           2.  If the command line does not specify one, and the auth info has conflicting techniques, fail.
//           3.  If the command line specifies one and the auth info specifies another, honor the command line technique.
//   2.  Use default values and potentially prompt for auth information
//
//   However, if it appears that we're running in a kubernetes cluster
//   container environment, then run with the auth info kubernetes mounted for
//   us. Specifically:
//     The env vars KUBERNETES_SERVICE_HOST and KUBERNETES_SERVICE_PORT are
//     set, and the file /var/run/secrets/kubernetes.io/serviceaccount/token
//     exists and is not a directory.
func DefaultClientConfig(flags *pflag.FlagSet) clientcmd.ClientConfig {
	loadingRules := clientcmd.NewDefaultClientConfigLoadingRules()
	flags.StringVar(&loadingRules.ExplicitPath, "kubeconfig", "", "Path to the kubeconfig file to use for CLI requests.")

	overrides := &clientcmd.ConfigOverrides{}
	flagNames := clientcmd.RecommendedConfigOverrideFlags("")
	// short flagnames are disabled by default.  These are here for compatibility with existing scripts
	flagNames.ClusterOverrideFlags.APIServer.ShortName = "s"

	clientcmd.BindOverrideFlags(overrides, flags, flagNames)
	clientConfig := clientcmd.NewInteractiveDeferredLoadingClientConfig(loadingRules, overrides, os.Stdin)

	return clientConfig
}

func defaultClientConfig(flags *pflag.FlagSet) clientcmd.ClientConfig {
	loadingRules := &clientcmd.ClientConfigLoadingRules{ExplicitPath: ""}

	flags.StringVar(&loadingRules.ExplicitPath, config.OpenShiftConfigFlagName, "", "Path to the config file to use for CLI requests.")

	overrides := &clientcmd.ConfigOverrides{}
	overrideFlags := clientcmd.RecommendedConfigOverrideFlags("")
	overrideFlags.ContextOverrideFlags.Namespace.ShortName = "n"
	clientcmd.BindOverrideFlags(overrides, flags, overrideFlags)

	clientConfig := clientcmd.NewNonInteractiveDeferredLoadingClientConfig(loadingRules, overrides)

	return clientConfig
}

func DefaultClientConfig(flags *pflag.FlagSet) clientcmd.ClientConfig {
	loadingRules := config.NewOpenShiftClientConfigLoadingRules()
	flags.StringVar(&loadingRules.ExplicitPath, config.OpenShiftConfigFlagName, "", "Path to the config file to use for CLI requests.")
	cobra.MarkFlagFilename(flags, config.OpenShiftConfigFlagName)

	overrides := &clientcmd.ConfigOverrides{}
	overrideFlags := clientcmd.RecommendedConfigOverrideFlags("")
	overrideFlags.ContextOverrideFlags.Namespace.ShortName = "n"
	overrideFlags.AuthOverrideFlags.Username.LongName = ""
	overrideFlags.AuthOverrideFlags.Password.LongName = ""
	clientcmd.BindOverrideFlags(overrides, flags, overrideFlags)
	cobra.MarkFlagFilename(flags, overrideFlags.AuthOverrideFlags.ClientCertificate.LongName)
	cobra.MarkFlagFilename(flags, overrideFlags.AuthOverrideFlags.ClientKey.LongName)
	cobra.MarkFlagFilename(flags, overrideFlags.ClusterOverrideFlags.CertificateAuthority.LongName)

	clientConfig := clientcmd.NewNonInteractiveDeferredLoadingClientConfig(loadingRules, overrides)

	return clientConfig
}