github.com/1aal/kubeblocks@v0.0.0-20231107070852-e1c03e598921/pkg/cli/preflight/load_spec.go (about)

     1  /*
     2  Copyright (C) 2022-2023 ApeCloud Co., Ltd
     3  
     4  This file is part of KubeBlocks project
     5  
     6  This program is free software: you can redistribute it and/or modify
     7  it under the terms of the GNU Affero General Public License as published by
     8  the Free Software Foundation, either version 3 of the License, or
     9  (at your option) any later version.
    10  
    11  This program is distributed in the hope that it will be useful
    12  but WITHOUT ANY WARRANTY; without even the implied warranty of
    13  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    14  GNU Affero General Public License for more details.
    15  
    16  You should have received a copy of the GNU Affero General Public License
    17  along with this program.  If not, see <http://www.gnu.org/licenses/>.
    18  */
    19  
    20  package preflight
    21  
    22  import (
    23  	"os"
    24  
    25  	"github.com/pkg/errors"
    26  	"k8s.io/client-go/kubernetes/scheme"
    27  
    28  	preflightv1beta2 "github.com/1aal/kubeblocks/externalapis/preflight/v1beta2"
    29  	"github.com/1aal/kubeblocks/pkg/cli/cmd/cluster"
    30  	"github.com/1aal/kubeblocks/pkg/cli/preflight/util"
    31  )
    32  
    33  // LoadPreflightSpec loads content of preflightSpec and hostPreflightSpec against yamlFiles from args
    34  func LoadPreflightSpec(checkFileList []string, checkYamlData [][]byte) (*preflightv1beta2.Preflight, *preflightv1beta2.HostPreflight, string, error) {
    35  	var (
    36  		preflightSpec     *preflightv1beta2.Preflight
    37  		hostPreflightSpec *preflightv1beta2.HostPreflight
    38  		preflightContent  []byte
    39  		preflightName     string
    40  		err               error
    41  	)
    42  	for _, fileName := range checkFileList {
    43  		// support to load yaml from stdin, local file and URI
    44  		if preflightContent, err = cluster.MultipleSourceComponents(fileName, os.Stdin); err != nil {
    45  			return preflightSpec, hostPreflightSpec, preflightName, err
    46  		}
    47  		checkYamlData = append(checkYamlData, preflightContent)
    48  	}
    49  	for _, yamlData := range checkYamlData {
    50  		obj, _, err := scheme.Codecs.UniversalDeserializer().Decode(yamlData, nil, nil)
    51  		if err != nil {
    52  			return preflightSpec, hostPreflightSpec, preflightName, errors.Wrapf(err, "failed to parse %s", string(yamlData))
    53  		}
    54  		if spec, ok := obj.(*preflightv1beta2.Preflight); ok {
    55  			preflightSpec = ConcatPreflightSpec(preflightSpec, spec)
    56  			preflightName = preflightSpec.Name
    57  		} else if spec, ok := obj.(*preflightv1beta2.HostPreflight); ok {
    58  			hostPreflightSpec = ConcatHostPreflightSpec(hostPreflightSpec, spec)
    59  			preflightName = hostPreflightSpec.Name
    60  		}
    61  	}
    62  	return preflightSpec, hostPreflightSpec, preflightName, nil
    63  }
    64  
    65  func init() {
    66  	// register the scheme of troubleshoot API and decode function
    67  	if err := util.AddToScheme(scheme.Scheme); err != nil {
    68  		return
    69  	}
    70  }