55 lines
1.6 KiB
Go
55 lines
1.6 KiB
Go
/*
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Copyright 2017 The Kubernetes 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 phases
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import (
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"fmt"
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"io"
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"github.com/spf13/cobra"
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)
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func NewCmdPhase(out io.Writer) *cobra.Command {
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cmd := &cobra.Command{
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Use: "phase",
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Short: "Invoke subsets of kubeadm functions separately for a manual install.",
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RunE: subCmdRunE("phase"),
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}
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cmd.AddCommand(NewCmdKubeConfig(out))
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cmd.AddCommand(NewCmdCerts())
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cmd.AddCommand(NewCmdPreFlight())
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cmd.AddCommand(NewCmdSelfhosting())
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return cmd
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}
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// subCmdRunE returns a function that handles a case where a subcommand must be specified
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// Without this callback, if a user runs just the command without a subcommand,
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// or with an invalid subcommand, cobra will print usage information, but still exit cleanly.
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// We want to return an error code in these cases so that the
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// user knows that their command was invalid.
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func subCmdRunE(name string) func(*cobra.Command, []string) error {
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return func(_ *cobra.Command, args []string) error {
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if len(args) < 1 {
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return fmt.Errorf("missing subcommand; %q is not meant to be run on its own", name)
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}
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return fmt.Errorf("invalid subcommand: %q", args[0])
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}
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}
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