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mirror-docker-unified stores all infrastructure scripts for SJTUG mirror servers.
SJTUG mirror service is made up of two servers and several services provided by SJTUG NIC.
There are two mirror servers, Zhiyuan and Siyuan, both sponsored by SJTU NIC.
The Zhiyuan mirror is set up in 2016. It is a traditional-VM-based server. Zhiyuan mirror is basically in maintenance mode. We do not add new repositories to that server.
The Siyuan mirror is set up in 2020. It is hosted on SJTU jCloud service, as a cloud VM. Siyuan mirror is intended for replacing ftp.sjtu.edu.cn, and is now in active development. We experiment new technologies and add new repositories on Siyuan mirror.
| Zhiyuan | Siyuan | |
|---|---|---|
| Since | 2016 | 2020 |
| Domain | https://mirrors.sjtug.sjtu.edu.cn | https://mirror.sjtu.edu.cn |
| OS | Fedora | Debian |
| Network | IPv4 + IPv6 (outbound only) | IPv4 (through jCloud router) + IPv6 |
| Type | Traditional VM | jCloud VM |
| CPU | 16 | 16 |
| Memory | 48GB | 128GB |
| Status | Only security patches | New repositories |
| Disk | 12TB HDD | 10TB + 10TB HDD |
Besides mirror servers, SJTUG mirror service leverages existing infrastructure of SJTU NIC to provide service, which includes:
- SJTU NIC S3 service. We store some repositories on SJTU S3 service. We use mirror-clone and mirror-intel to synchronize data to S3 and serve our users respectively.
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SJTU Git Service. All git repositories are first cloned to mirror servers, and then pushed to SJTU git. Mirror users still use URLs like
https://mirrors.sjtug.sjtu.edu.cn/git/crates.io-index/to clone. Our web server will redirect users to SJTU git or directly serve from disk, according to their user agent.