github.com/alibaba/sealer@v0.8.6-0.20220430115802-37a2bdaa8173/sealer/cmd/delete.go (about)

     1  // Copyright © 2021 Alibaba Group Holding Ltd.
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  
    15  package cmd
    16  
    17  import (
    18  	"fmt"
    19  
    20  	"github.com/alibaba/sealer/pkg/clusterfile"
    21  
    22  	"github.com/alibaba/sealer/pkg/runtime"
    23  
    24  	"github.com/spf13/cobra"
    25  
    26  	"github.com/alibaba/sealer/apply"
    27  	"github.com/alibaba/sealer/common"
    28  )
    29  
    30  var (
    31  	deleteArgs        *common.RunArgs
    32  	deleteClusterFile string
    33  	deleteClusterName string
    34  )
    35  
    36  // deleteCmd represents the delete command
    37  var deleteCmd = &cobra.Command{
    38  	Use:   "delete",
    39  	Short: "delete a cluster",
    40  	Long:  `if provider is Bare Metal Server will delete kubernetes nodes`,
    41  	Args:  cobra.NoArgs,
    42  	Example: `
    43  delete to default cluster: 
    44  	sealer delete --masters x.x.x.x --nodes x.x.x.x
    45  	sealer delete --masters x.x.x.x-x.x.x.y --nodes x.x.x.x-x.x.x.y
    46  delete all:
    47  	sealer delete --all [--force]
    48  	sealer delete -f /root/.sealer/mycluster/Clusterfile [--force]
    49  	sealer delete -c my-cluster [--force]
    50  `,
    51  	RunE: func(cmd *cobra.Command, args []string) error {
    52  		all, err := cmd.Flags().GetBool("all")
    53  		if err != nil {
    54  			return err
    55  		}
    56  		if deleteClusterName == "" && deleteClusterFile == "" {
    57  			if !all && deleteArgs.Masters == "" && deleteArgs.Nodes == "" {
    58  				return fmt.Errorf("the delete parameter needs to be set")
    59  			}
    60  			deleteClusterName, err = clusterfile.GetDefaultClusterName()
    61  			if err == clusterfile.ErrClusterNotExist {
    62  				fmt.Println("Find no exist cluster, skip delete")
    63  				return nil
    64  			}
    65  			if err != nil {
    66  				return err
    67  			}
    68  			deleteClusterFile = common.GetClusterWorkClusterfile(deleteClusterName)
    69  		} else if deleteClusterName != "" && deleteClusterFile != "" {
    70  			tmpClusterfile := common.GetClusterWorkClusterfile(deleteClusterName)
    71  			if tmpClusterfile != deleteClusterFile {
    72  				return fmt.Errorf("arguments error:%s and %s refer to different clusters", deleteClusterFile, tmpClusterfile)
    73  			}
    74  		} else if deleteClusterFile == "" {
    75  			deleteClusterFile = common.GetClusterWorkClusterfile(deleteClusterName)
    76  		}
    77  		if deleteArgs.Nodes != "" || deleteArgs.Masters != "" {
    78  			applier, err := apply.NewScaleApplierFromArgs(deleteClusterFile, deleteArgs, common.DeleteSubCmd)
    79  			if err != nil {
    80  				return err
    81  			}
    82  			return applier.Apply()
    83  		}
    84  
    85  		applier, err := apply.NewApplierFromFile(deleteClusterFile)
    86  		if err != nil {
    87  			return err
    88  		}
    89  		return applier.Delete()
    90  	},
    91  }
    92  
    93  func init() {
    94  	deleteArgs = &common.RunArgs{}
    95  	rootCmd.AddCommand(deleteCmd)
    96  	deleteCmd.Flags().StringVarP(&deleteArgs.Masters, "masters", "m", "", "reduce Count or IPList to masters")
    97  	deleteCmd.Flags().StringVarP(&deleteArgs.Nodes, "nodes", "n", "", "reduce Count or IPList to nodes")
    98  	deleteCmd.Flags().StringVarP(&deleteClusterFile, "Clusterfile", "f", "", "delete a kubernetes cluster with Clusterfile Annotations")
    99  	deleteCmd.Flags().StringVarP(&deleteClusterName, "cluster", "c", "", "delete a kubernetes cluster with cluster name")
   100  	deleteCmd.Flags().BoolVar(&runtime.ForceDelete, "force", false, "We also can input an --force flag to delete cluster by force")
   101  	deleteCmd.Flags().BoolP("all", "a", false, "this flags is for delete nodes, if this is true, empty all node ip")
   102  }