github.com/alibaba/sealer@v0.8.6-0.20220430115802-37a2bdaa8173/pkg/clusterfile/clusterfile.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 clusterfile
    16  
    17  import (
    18  	"errors"
    19  	"sync"
    20  
    21  	"github.com/alibaba/sealer/pkg/runtime"
    22  	v1 "github.com/alibaba/sealer/types/api/v1"
    23  	v2 "github.com/alibaba/sealer/types/api/v2"
    24  )
    25  
    26  var ErrTypeNotFound = errors.New("no corresponding type structure was found")
    27  
    28  type ClusterFile struct {
    29  	path       string
    30  	Cluster    v2.Cluster
    31  	Configs    []v1.Config
    32  	KubeConfig *runtime.KubeadmConfig
    33  	Plugins    []v1.Plugin
    34  }
    35  
    36  var (
    37  	clusterFile = &ClusterFile{}
    38  	once        sync.Once
    39  )
    40  
    41  type Interface interface {
    42  	PreProcessor
    43  	GetCluster() v2.Cluster
    44  	GetConfigs() []v1.Config
    45  	GetPlugins() []v1.Plugin
    46  	GetKubeadmConfig() *runtime.KubeadmConfig
    47  }
    48  
    49  func (c *ClusterFile) GetCluster() v2.Cluster {
    50  	return c.Cluster
    51  }
    52  
    53  func (c *ClusterFile) GetConfigs() []v1.Config {
    54  	return c.Configs
    55  }
    56  
    57  func (c *ClusterFile) GetPlugins() []v1.Plugin {
    58  	return c.Plugins
    59  }
    60  
    61  func (c *ClusterFile) GetKubeadmConfig() *runtime.KubeadmConfig {
    62  	return c.KubeConfig
    63  }
    64  
    65  func NewClusterFile(path string) (i Interface, err error) {
    66  	if path == "" {
    67  		return clusterFile, nil
    68  	}
    69  	once.Do(func() {
    70  		clusterFile.path = path
    71  		err = clusterFile.Process()
    72  	})
    73  	return clusterFile, err
    74  }