github.com/alibaba/sealer@v0.8.6-0.20220430115802-37a2bdaa8173/pkg/runtime/reset.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 runtime
    16  
    17  import (
    18  	"context"
    19  	"fmt"
    20  
    21  	"github.com/alibaba/sealer/logger"
    22  	"github.com/alibaba/sealer/utils"
    23  	"golang.org/x/sync/errgroup"
    24  )
    25  
    26  func (k *KubeadmRuntime) reset() error {
    27  	k.resetNodes(k.GetNodeIPList())
    28  	k.resetMasters(k.GetMasterIPList())
    29  	//if the executing machine is not in the cluster
    30  	if _, err := utils.RunSimpleCmd(fmt.Sprintf(RemoteRemoveAPIServerEtcHost, k.getAPIServerDomain())); err != nil {
    31  		return err
    32  	}
    33  	for _, node := range k.GetNodeIPList() {
    34  		err := k.deleteVIPRouteIfExist(node)
    35  		if err != nil {
    36  			return fmt.Errorf("failed to delete %s route: %v", node, err)
    37  		}
    38  	}
    39  	return k.DeleteRegistry()
    40  }
    41  
    42  func (k *KubeadmRuntime) resetNodes(nodes []string) {
    43  	eg, _ := errgroup.WithContext(context.Background())
    44  	for _, node := range nodes {
    45  		node := node
    46  		eg.Go(func() error {
    47  			if err := k.resetNode(node); err != nil {
    48  				logger.Error("delete node %s failed %v", node, err)
    49  			}
    50  			return nil
    51  		})
    52  	}
    53  	if err := eg.Wait(); err != nil {
    54  		return
    55  	}
    56  }
    57  
    58  func (k *KubeadmRuntime) resetMasters(nodes []string) {
    59  	for _, node := range nodes {
    60  		if err := k.resetNode(node); err != nil {
    61  			logger.Error("delete master %s failed %v", node, err)
    62  		}
    63  	}
    64  }
    65  
    66  func (k *KubeadmRuntime) resetNode(node string) error {
    67  	ssh, err := k.getHostSSHClient(node)
    68  	if err != nil {
    69  		return fmt.Errorf("reset node failed %v", err)
    70  	}
    71  	if err := ssh.CmdAsync(node, fmt.Sprintf(RemoteCleanMasterOrNode, vlogToStr(k.Vlog)),
    72  		RemoveKubeConfig,
    73  		fmt.Sprintf(RemoteRemoveAPIServerEtcHost, k.getAPIServerDomain()),
    74  		fmt.Sprintf(RemoteRemoveAPIServerEtcHost, SeaHub),
    75  		fmt.Sprintf(RemoteRemoveAPIServerEtcHost, k.RegConfig.Domain),
    76  		fmt.Sprintf(RemoteRemoveRegistryCerts, k.RegConfig.Domain),
    77  		fmt.Sprintf(RemoteRemoveRegistryCerts, SeaHub)); err != nil {
    78  		return err
    79  	}
    80  	return nil
    81  }