github.com/1aal/kubeblocks@v0.0.0-20231107070852-e1c03e598921/pkg/cli/cmd/class/utils.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 class
    21  
    22  import (
    23  	"context"
    24  	"fmt"
    25  
    26  	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
    27  	"k8s.io/apimachinery/pkg/runtime"
    28  	"k8s.io/client-go/dynamic"
    29  
    30  	"github.com/1aal/kubeblocks/apis/apps/v1alpha1"
    31  	"github.com/1aal/kubeblocks/pkg/class"
    32  	"github.com/1aal/kubeblocks/pkg/cli/types"
    33  	"github.com/1aal/kubeblocks/pkg/constant"
    34  )
    35  
    36  // GetManager gets a class manager which manages default classes and user custom classes
    37  func GetManager(client dynamic.Interface, cdName string) (*class.Manager, error) {
    38  	selector := fmt.Sprintf("%s=%s,%s", constant.ClusterDefLabelKey, cdName, types.ClassProviderLabelKey)
    39  	classObjs, err := client.Resource(types.ComponentClassDefinitionGVR()).Namespace("").List(context.TODO(), metav1.ListOptions{
    40  		LabelSelector: selector,
    41  	})
    42  	if err != nil {
    43  		return nil, err
    44  	}
    45  	var classDefinitionList v1alpha1.ComponentClassDefinitionList
    46  	if err = runtime.DefaultUnstructuredConverter.FromUnstructured(classObjs.UnstructuredContent(), &classDefinitionList); err != nil {
    47  		return nil, err
    48  	}
    49  
    50  	constraintObjs, err := client.Resource(types.ComponentResourceConstraintGVR()).Namespace("").List(context.TODO(), metav1.ListOptions{})
    51  	if err != nil {
    52  		return nil, err
    53  	}
    54  	var resourceConstraintList v1alpha1.ComponentResourceConstraintList
    55  	if err = runtime.DefaultUnstructuredConverter.FromUnstructured(constraintObjs.UnstructuredContent(), &resourceConstraintList); err != nil {
    56  		return nil, err
    57  	}
    58  	return class.NewManager(classDefinitionList, resourceConstraintList)
    59  }
    60  
    61  // GetResourceConstraints gets all resource constraints
    62  func GetResourceConstraints(dynamic dynamic.Interface) (map[string]*v1alpha1.ComponentResourceConstraint, error) {
    63  	objs, err := dynamic.Resource(types.ComponentResourceConstraintGVR()).List(context.TODO(), metav1.ListOptions{
    64  		// LabelSelector: types.ResourceConstraintProviderLabelKey,
    65  	})
    66  	if err != nil {
    67  		return nil, err
    68  	}
    69  	var constraintsList v1alpha1.ComponentResourceConstraintList
    70  	if err = runtime.DefaultUnstructuredConverter.FromUnstructured(objs.UnstructuredContent(), &constraintsList); err != nil {
    71  		return nil, err
    72  	}
    73  
    74  	result := make(map[string]*v1alpha1.ComponentResourceConstraint)
    75  	for idx := range constraintsList.Items {
    76  		cf := constraintsList.Items[idx]
    77  		if _, ok := cf.GetLabels()[constant.ResourceConstraintProviderLabelKey]; !ok {
    78  			continue
    79  		}
    80  		result[cf.GetName()] = &cf
    81  	}
    82  	return result, nil
    83  }