github.com/sealerio/sealer@v0.11.1-0.20240507115618-f4f89c5853ae/pkg/runtime/k0s/init.go (about)

     1  // Copyright © 2022 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 k0s
    16  
    17  import (
    18  	"context"
    19  	"fmt"
    20  	"net"
    21  	"path/filepath"
    22  
    23  	"github.com/sirupsen/logrus"
    24  	"golang.org/x/sync/errgroup"
    25  )
    26  
    27  // generateConfigOnMaster0 generate the k0s.yaml to /etc/k0s/k0s.yaml and lead the controller node install
    28  func (k *Runtime) generateConfigOnMaster0(master0 net.IP, registryInfo string) error {
    29  	if err := k.generateK0sConfig(master0); err != nil {
    30  		return fmt.Errorf("failed to generate config: %v", err)
    31  	}
    32  	logrus.Infof("k0s config created under /etc/k0s")
    33  
    34  	if err := k.modifyConfigRepo(master0, registryInfo); err != nil {
    35  		return fmt.Errorf("failed to modify config to private repository: %s", err)
    36  	}
    37  	return nil
    38  }
    39  
    40  // GenerateCert generate k0s join token for 100 years.
    41  func (k *Runtime) generateJoinToken(master0 net.IP) error {
    42  	workerTokenCreateCMD := fmt.Sprintf("k0s token create --role=%s --expiry=876000h > %s", WorkerRole, DefaultK0sWorkerJoin)
    43  	controllerTokenCreateCMD := fmt.Sprintf("k0s token create --role=%s --expiry=876000h > %s", ControllerRole, DefaultK0sControllerJoin)
    44  	return k.infra.CmdAsync(master0, nil, workerTokenCreateCMD, controllerTokenCreateCMD)
    45  }
    46  
    47  func (k *Runtime) generateK0sConfig(master0 net.IP) error {
    48  	mkdirCMD := "mkdir -p /etc/k0s"
    49  	if _, err := k.infra.Cmd(master0, nil, mkdirCMD); err != nil {
    50  		return err
    51  	}
    52  
    53  	configCreateCMD := fmt.Sprintf("k0s config create > %s", DefaultK0sConfigPath)
    54  	if _, err := k.infra.Cmd(master0, nil, configCreateCMD); err != nil {
    55  		return err
    56  	}
    57  
    58  	return nil
    59  }
    60  
    61  func (k *Runtime) modifyConfigRepo(master0 net.IP, registryInfo string) error {
    62  	addRepoCMD := fmt.Sprintf("sed -i '/  images/ a\\    repository: %s' %s", registryInfo, DefaultK0sConfigPath)
    63  	_, err := k.infra.Cmd(master0, nil, addRepoCMD)
    64  	if err != nil {
    65  		return err
    66  	}
    67  	return nil
    68  }
    69  
    70  func (k *Runtime) bootstrapMaster0(master0 net.IP) error {
    71  	bootstrapCMD := fmt.Sprintf("k0s install controller -c %s --cri-socket %s", DefaultK0sConfigPath, ExternalCRIAddress)
    72  	if _, err := k.infra.Cmd(master0, nil, bootstrapCMD); err != nil {
    73  		return err
    74  	}
    75  
    76  	startSvcCMD := "k0s start"
    77  	if _, err := k.infra.Cmd(master0, nil, startSvcCMD); err != nil {
    78  		return err
    79  	}
    80  
    81  	if err := k.WaitK0sReady(master0); err != nil {
    82  		return err
    83  	}
    84  	// fetch kubeconfig
    85  	if _, err := k.infra.Cmd(master0, nil, "rm -rf .kube/config && mkdir -p /root/.kube && cp /var/lib/k0s/pki/admin.conf /root/.kube/config"); err != nil {
    86  		return err
    87  	}
    88  	logrus.Infof("k0s start successfully on master0")
    89  	return nil
    90  }
    91  
    92  // initKube prepare install environment.
    93  func (k *Runtime) initKube(hosts []net.IP) error {
    94  	initKubeletCmd := fmt.Sprintf("cd %s && export RegistryURL=%s && bash %s", filepath.Join(k.infra.GetClusterRootfsPath(), "scripts"), k.registryInfo.URL, "init-kube.sh")
    95  	eg, _ := errgroup.WithContext(context.Background())
    96  	for _, h := range hosts {
    97  		host := h
    98  		eg.Go(func() error {
    99  			if err := k.infra.CmdAsync(host, nil, initKubeletCmd); err != nil {
   100  				return fmt.Errorf("failed to init Kubelet Service on (%s): %s", host, err.Error())
   101  			}
   102  			return nil
   103  		})
   104  	}
   105  	if err := eg.Wait(); err != nil {
   106  		return err
   107  	}
   108  	return nil
   109  }