This is apparently caused by bundle install. This operation takes a long time even if the server is deployed in a foreign country, not to mention you’ll run into some well-known resistance.
Be careful about the same problem when yarn install later.
It’s better not to put the server in China, because even cloning discourse from github may give you an error…
显然这是由于 bundle install 造成的。这个操作即使服务器在境外都久，何况你还要爬一层墙。
后面 yarn install 的时候也要小心这个问题。
最好还是别把服务器放大陆吧，连从github上clone discourse本体都可能给你爆个错误……