github.com/1aal/kubeblocks@v0.0.0-20231107070852-e1c03e598921/pkg/lorry/engines/mongodb/client.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 mongodb
    21  
    22  import (
    23  	"context"
    24  
    25  	"github.com/pkg/errors"
    26  	"go.mongodb.org/mongo-driver/mongo"
    27  	"go.mongodb.org/mongo-driver/mongo/options"
    28  	"go.mongodb.org/mongo-driver/mongo/readpref"
    29  	"go.mongodb.org/mongo-driver/mongo/writeconcern"
    30  )
    31  
    32  func NewMongodbClient(ctx context.Context, config *Config) (*mongo.Client, error) {
    33  	if len(config.hosts) == 0 {
    34  		return nil, errors.New("Get replset client whitout hosts")
    35  	}
    36  
    37  	opts := options.Client().
    38  		SetHosts(config.hosts).
    39  		SetReplicaSet(config.replSetName).
    40  		SetAuth(options.Credential{
    41  			Password: config.password,
    42  			Username: config.username,
    43  		}).
    44  		SetWriteConcern(writeconcern.New(writeconcern.WMajority(), writeconcern.J(true))).
    45  		SetReadPreference(readpref.Primary()).
    46  		SetDirect(config.direct)
    47  
    48  	client, err := mongo.Connect(ctx, opts)
    49  	if err != nil {
    50  		return nil, errors.Wrap(err, "connect to mongodb")
    51  	}
    52  	return client, nil
    53  }
    54  
    55  func NewReplSetClient(ctx context.Context, hosts []string) (*mongo.Client, error) {
    56  	config := GetConfig().DeepCopy()
    57  	config.hosts = hosts
    58  	config.direct = false
    59  	return NewMongodbClient(ctx, config)
    60  
    61  }
    62  
    63  func NewMongosClient(ctx context.Context, hosts []string) (*mongo.Client, error) {
    64  	config := GetConfig().DeepCopy()
    65  	config.hosts = hosts
    66  	config.direct = false
    67  	config.replSetName = ""
    68  
    69  	return NewMongodbClient(ctx, config)
    70  }
    71  
    72  func NewStandaloneClient(ctx context.Context, host string) (*mongo.Client, error) {
    73  	config := GetConfig().DeepCopy()
    74  	config.hosts = []string{host}
    75  	config.direct = true
    76  	config.replSetName = ""
    77  
    78  	return NewMongodbClient(ctx, config)
    79  }
    80  
    81  func NewLocalUnauthClient(ctx context.Context) (*mongo.Client, error) {
    82  	config := GetConfig().DeepCopy()
    83  	config.direct = true
    84  	config.replSetName = ""
    85  
    86  	opts := options.Client().
    87  		SetHosts(config.hosts).
    88  		SetWriteConcern(writeconcern.New(writeconcern.WMajority(), writeconcern.J(true))).
    89  		SetReadPreference(readpref.Primary()).
    90  		SetDirect(config.direct)
    91  
    92  	client, err := mongo.Connect(ctx, opts)
    93  	if err != nil {
    94  		return nil, errors.Wrap(err, "connect to mongodb")
    95  	}
    96  
    97  	return client, nil
    98  }