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Docker中的Go程序如何连接宿主机MongoDB

某些业务场景中我们需要从Docker内部连接宿主机上运行的MongoDB数据库,这时就需要使用一个特殊的host名来进行连接,即 host.docker.internal host.docker.internal 是一个特殊的主机名,它可以用来访问运行Docker容器的主机的本地网络资源。 package db import ( "context" "time" "go.mongodb.org/mongo-driver/mongo" "go.mongodb.org/mongo-driver/mongo/options" ) func NewClient() (*mongo.Client, error) { ctx, _ := context.WithTimeout(context.Background(), 3*time.Second) credential := options.Credential{ AuthSource: "admin", Username: "数据库用户名", Password: "数据库密码", } clientOpts := options.Client().ApplyURI("host.docker.internal:27017").SetAuth(credential) client, err := mongo.Connect(ctx, clientOpts) return client, err }