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connect.go
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connect.go
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// Licensed to NASA JPL under one or more contributor
// license agreements. See the NOTICE file distributed with
// this work for additional information regarding copyright
// ownership. NASA JPL licenses this file to you under
// the Apache License, Version 2.0 (the "License"); you may
// not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied. See the License for the
// specific language governing permissions and limitations
// under the License.
// Lowest-level code to connect to Mongo DB (locally in Docker and remotely) and get consistant collection names.
package mongoDBConnection
import (
"fmt"
"github.com/aws/aws-sdk-go/aws/session"
"github.com/pixlise/core/v4/core/logger"
"go.mongodb.org/mongo-driver/mongo"
)
// Helpers for connecting to Mongo DB
// NOTE: we support remote, local and "test" connections as per https://medium.com/@victor.neuret/mocking-the-official-mongo-golang-driver-5aad5b226a78
func Connect(
sess *session.Session, // Can be nil for local connection
mongoSecret string, // empty for local connection
iLog logger.ILogger,
) (*mongo.Client, error) {
// If the secret is blank, assume we're connecting to a local DB with no auth
if len(mongoSecret) <= 0 {
// Connect to local mongo
return connectToLocalMongoDB(iLog)
}
// We're connecting to a remote one, first get the details from secret cache
// Get a session for the bucket region
mongoConnectionInfo, err := getMongoConnectionInfoFromSecretCache(sess, mongoSecret)
if err != nil {
return nil, fmt.Errorf("Failed to read mongo secret \"%v\" info from secrets cache: %v", mongoSecret, err)
}
return connectToRemoteMongoDB(
mongoConnectionInfo.Host,
mongoConnectionInfo.Username,
mongoConnectionInfo.Password,
iLog,
)
}
func GetDatabaseName(dbName string, envName string) string {
return dbName + "-" + envName
}