原文：https://stackoverflow.com/questions/50766990/how-to-properly-set-up-https-for-onlyoffice
按照官网建议，生成的证书保存情况如下：
/app/onlyoffice/DocumentServer/data/certs# ls
dhparam.pem onlyoffice.crt onlyoffice.csr onlyoffice.key使用LetsEncrypt证书
问题：
Also, when copying the created certificates from /etc/letsencrypt/live/[domain] to /app/onlyoffice/DocumentServer/data/certs/, which file between cert.pem, chain.pem, and fullchain.pem becomes onlyoffice.crt?
回答：
1) cert.pem is onlyoffice’s onlyoffice.crt – This is your SSL certificate. 2) privkey.pem is onlyoffice.key – This is your Private Key. 3) You can usually ignore the other files as they are intermediate certificates.
将LetsEncrypt证书重命名，复制到Onlyoffice证书位置，重启Onlyoffice服务，或者容器即可。