97 lines
4.3 KiB
Go
97 lines
4.3 KiB
Go
/*
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Copyright 2016 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 cmd
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import (
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"io"
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"github.com/lithammer/dedent"
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"github.com/spf13/cobra"
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"k8s.io/kubernetes/cmd/kubeadm/app/cmd/alpha"
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"k8s.io/kubernetes/cmd/kubeadm/app/cmd/options"
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"k8s.io/kubernetes/cmd/kubeadm/app/cmd/upgrade"
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kubeadmutil "k8s.io/kubernetes/cmd/kubeadm/app/util"
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// Register the kubeadm configuration types because CLI flag generation
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// depends on the generated defaults.
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)
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// NewKubeadmCommand returns cobra.Command to run kubeadm command
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func NewKubeadmCommand(in io.Reader, out, err io.Writer) *cobra.Command {
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var rootfsPath string
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cmds := &cobra.Command{
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Use: "kubeadm",
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Short: "kubeadm: easily bootstrap a secure Kubernetes cluster",
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Long: dedent.Dedent(`
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┌──────────────────────────────────────────────────────────┐
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│ KUBEADM │
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│ Easily bootstrap a secure Kubernetes cluster │
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│ │
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│ Please give us feedback at: │
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│ https://github.com/kubernetes/kubeadm/issues │
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└──────────────────────────────────────────────────────────┘
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Example usage:
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Create a two-machine cluster with one control-plane node
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(which controls the cluster), and one worker node
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(where your workloads, like Pods and Deployments run).
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┌──────────────────────────────────────────────────────────┐
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│ On the first machine: │
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├──────────────────────────────────────────────────────────┤
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│ control-plane# kubeadm init │
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└──────────────────────────────────────────────────────────┘
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┌──────────────────────────────────────────────────────────┐
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│ On the second machine: │
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├──────────────────────────────────────────────────────────┤
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│ worker# kubeadm join <arguments-returned-from-init> │
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└──────────────────────────────────────────────────────────┘
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You can then repeat the second step on as many other machines as you like.
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`),
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PersistentPreRunE: func(cmd *cobra.Command, args []string) error {
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if rootfsPath != "" {
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if err := kubeadmutil.Chroot(rootfsPath); err != nil {
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return err
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}
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}
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return nil
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},
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}
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cmds.ResetFlags()
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cmds.AddCommand(NewCmdCompletion(out, ""))
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cmds.AddCommand(NewCmdConfig(out))
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cmds.AddCommand(NewCmdInit(out, nil))
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cmds.AddCommand(NewCmdJoin(out, nil))
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cmds.AddCommand(NewCmdReset(in, out, nil))
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cmds.AddCommand(NewCmdVersion(out))
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cmds.AddCommand(NewCmdToken(out, err))
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cmds.AddCommand(upgrade.NewCmdUpgrade(out))
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cmds.AddCommand(alpha.NewCmdAlpha(in, out))
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options.AddKubeadmOtherFlags(cmds.PersistentFlags(), &rootfsPath)
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return cmds
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}
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