github.com/1aal/kubeblocks@v0.0.0-20231107070852-e1c03e598921/pkg/configuration/core/config_query.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 core
    21  
    22  import (
    23  	"context"
    24  
    25  	corev1 "k8s.io/api/core/v1"
    26  	"sigs.k8s.io/controller-runtime/pkg/log"
    27  
    28  	appsv1alpha1 "github.com/1aal/kubeblocks/apis/apps/v1alpha1"
    29  )
    30  
    31  // GetParameterFromConfiguration gets configure parameter
    32  // ctx: apiserver context
    33  // cli: apiserver client
    34  // cluster: appsv1alpha1.Cluster
    35  // component: component name
    36  func GetParameterFromConfiguration(configMap *corev1.ConfigMap, allFiles bool, fieldPath ...string) ([]string, error) {
    37  	if configMap == nil || len(configMap.Data) == 0 {
    38  		return nil, MakeError("required configmap [%v]", configMap)
    39  	}
    40  
    41  	// Load configmap
    42  	wrapCfg, err := NewConfigLoader(CfgOption{
    43  		Type:           CfgCmType,
    44  		Log:            log.FromContext(context.Background()),
    45  		CfgType:        appsv1alpha1.Ini,
    46  		ConfigResource: FromConfigData(configMap.Data, nil),
    47  	})
    48  	if err != nil {
    49  		return nil, WrapError(err, "failed to loader configmap")
    50  	}
    51  
    52  	res := make([]string, 0, len(fieldPath))
    53  	option := NewCfgOptions("")
    54  	option.AllSearch = allFiles
    55  	for _, field := range fieldPath {
    56  		if rs, err := wrapCfg.Query(field, option); err != nil {
    57  			return nil, WrapError(err, "failed to get parameter:[%s]", field)
    58  		} else {
    59  			res = append(res, string(rs))
    60  		}
    61  	}
    62  
    63  	return res, nil
    64  }