github.com/alibaba/sealer@v0.8.6-0.20220430115802-37a2bdaa8173/pkg/runtime/kubeadm.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  	"fmt"
    19  	"strings"
    20  
    21  	"github.com/alibaba/sealer/logger"
    22  )
    23  
    24  var (
    25  	ContainerdShell = `if grep "SystemdCgroup = true"  /etc/containerd/config.toml &> /dev/null; then  
    26  driver=systemd
    27  else
    28  driver=cgroupfs
    29  fi
    30  echo ${driver}`
    31  	DockerShell = `driver=$(docker info -f "{{.CgroupDriver}}")
    32  	echo "${driver}"`
    33  )
    34  
    35  // k.getKubeVersion can't be empty
    36  func (k *KubeadmRuntime) setKubeadmAPIVersion() {
    37  	switch {
    38  	case VersionCompare(k.getKubeVersion(), V1150) && !VersionCompare(k.getKubeVersion(), V1230):
    39  		k.setAPIVersion(KubeadmV1beta2)
    40  	case VersionCompare(k.getKubeVersion(), V1230):
    41  		k.setAPIVersion(KubeadmV1beta3)
    42  	default:
    43  		// Compatible with versions 1.14 and 1.13. but do not recommended.
    44  		k.setAPIVersion(KubeadmV1beta1)
    45  	}
    46  }
    47  
    48  // getCgroupDriverFromShell is get nodes container runtime CGroup by shell.
    49  func (k *KubeadmRuntime) getCgroupDriverFromShell(node string) (string, error) {
    50  	var cmd string
    51  	if k.InitConfiguration.NodeRegistration.CRISocket == DefaultContainerdCRISocket {
    52  		cmd = ContainerdShell
    53  	} else {
    54  		cmd = DockerShell
    55  	}
    56  	driver, err := k.CmdToString(node, cmd, " ")
    57  	if err != nil {
    58  		return "", fmt.Errorf("failed to get nodes [%s] cgroup driver: %v", node, err)
    59  	}
    60  	if driver == "" {
    61  		// by default if we get wrong output we set it default systemd?
    62  		logger.Error("failed to get nodes [%s] cgroup driver", node)
    63  		driver = DefaultSystemdCgroupDriver
    64  	}
    65  	driver = strings.TrimSpace(driver)
    66  	logger.Debug("get nodes [%s] cgroup driver is [%s]", node, driver)
    67  	return driver, nil
    68  }
    69  
    70  func (k *KubeadmRuntime) MergeKubeadmConfig() error {
    71  	if k.getKubeVersion() != "" {
    72  		return nil
    73  	}
    74  	if k.Config.ClusterFileKubeConfig != nil {
    75  		if err := k.LoadFromClusterfile(k.Config.ClusterFileKubeConfig); err != nil {
    76  			return fmt.Errorf("failed to load kubeadm config from clusterfile: %v", err)
    77  		}
    78  	}
    79  	if err := k.Merge(k.getDefaultKubeadmConfig()); err != nil {
    80  		return fmt.Errorf("failed to merge kubeadm config: %v", err)
    81  	}
    82  	k.setKubeadmAPIVersion()
    83  	return nil
    84  }