我已经使用Docker创建了一个MongoDB副本集，并且可以使用控制台或Robo3T进行访问并运行任何查询。

容器如下所示：

$ docker ps
CONTAINER ID        IMAGE               COMMAND                  CREATED             STATUS              PORTS                      NAMES
efe6ae03323d        mongo               "docker-entrypoint.s…"   10 minutes ago      Up 10 minutes       0.0.0.0:30001->27017/tcp   mongo1
57d2701c8a43        mongo               "docker-entrypoint.s…"   10 minutes ago      Up 10 minutes       0.0.0.0:30002->27017/tcp   mongo2
7553966b9ff5        mongo               "docker-entrypoint.s…"   10 minutes ago      Up 10 minutes       0.0.0.0:30003->27017/tcp   mongo3

当我尝试使用mongo-go-driver
ping时，问题是一个错误（我尝试使用1.0.0和1.0.2版）

// Create MongoDB client    
client, err := mongo.NewClient(options.Client().ApplyURI("mongodb://localhost:30001"))
if err != nil {
    t.Fatalf("Exit error: %v", err)
}

ctx, cancel := context.WithTimeout(context.Background(), time.Minute)
defer cancel()
err = client.Connect(ctx)
if err != nil {
    t.Fatalf("Exit error: %v", err)
}

ctx, cancel = context.WithTimeout(context.Background(), time.Minute)
defer cancel()

// Ping
err = client.Ping(ctx, readpref.Primary())
if err != nil {
    t.Fatalf("Exit error Ping: %v", err)
}

Ping调用引发的错误如下：

Exit error Ping: server selection error: server selection timeout
        current topology: Type: ReplicaSetNoPrimary
        Servers:
        Addr: mongo2:27017, Type: Unknown, State: Connected, Average RTT: 0, Last error: dial tcp: lookup mongo2: no such host
        Addr: mongo3:27017, Type: Unknown, State: Connected, Average RTT: 0, Last error: dial tcp: lookup mongo3: no such host
        Addr: mongo1:27017, Type: Unknown, State: Connected, Average RTT: 0, Last error: dial tcp: lookup mongo1: no such host

谢谢大家的支持！