英文:
How do I do mongodump on a server and transfer that to my local machine using golang?
问题
我写了一个Go程序（基本上是这个例子中的代码，https://stackoverflow.com/questions/21417223/simple-ssh-port-forward-in-golang），通过创建SSH隧道连接到远程MongoDB服务器。我可以使用mgo API查询服务器。现在，我想将数据库的几个集合复制到我的本地机器上，并在本地查询，而不是每次都查询服务器。需要注意的是，由于存在端口转发，我不能直接将其复制到我的本地机器上。我该如何实现这一点？
英文:
I wrote a go program ( which is basically the code in this example, https://stackoverflow.com/questions/21417223/simple-ssh-port-forward-in-golang ) that connects to a remote mongodb server by creating an ssh tunnel. I can query the server using mgo api. Now, instead of querying the server everytime, I want to copy a few collections of the database to my local machine and query locally. It is important to note that I cannot copy it directly to my local machine as there is port forwarding involved. How can I achieve this ?
答案1
得分: 3
你正在重新发明轮子。使用cron创建一个SSH隧道到目标，然后使用本地的mongodump连接到你的本地隧道端点。
ssh -f user@mongodb.example.com -L 27017:mongodb.example.com:27017 -N
mongodump localhost:27017 <你的选项在这里>
英文:
You are reinventing the wheel. Use cron to create an ssh tunnel to the destination and then use a local mongodump to connect against your local tunnel endpoint
ssh -f user@mongodb.example.com -L 27017:mongodb.example.com:27017 -N
mongodump localhost:27017 <your opts here>
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