Shutdown the old ezid servers

[jsjiang]

The old EZID-Prd server (uc3-ezidui02x2-prd) is replaced by high available Linux 2023 servers (uc3-ezidui-prd01 and uc3-ezidui-prd02) on April 3 2024. Complete post-migration tasks before shutdown the instance:

• log files: Log files are rotated and kept for 6 weeks. Should we bring over old but not expired log files over to one of the new instances?
  • Ashley will tar the log files and save them to the new uc3-ezidui-prd01 instance
• the retired Minter DB: should we keep a copy of the Minter DB?
  • No need to keep (a copy was saved as /home/jjiang/ezid/minters_backup/minters.prd.113020230500.tar.gz)

Also decommission the old ezid-stg and ezid-dev instances.

Tasks:

• [x] backup EZID-Prd log files (tar and save to uc3-ezidui-prd01)
• [x] decommission uc3-ezidui01x2-dev
• [x] decommission uc3-ezidui02x2-stg
• [x] decommission uc3-ezidui02x2-prd
• [x] delete tar'ed EZID-Prd log files after 6 weeks

[ashleygould]

waiting on logs deletion. all else is done.

[jsjiang]

Delete tar'ed EZID-Prd log files after 6 weeks - deleted on June 3

ezid@uc3-ezidui-prd01:10:53:03:~/var/log$ rm -r old_logs.delete_after.20230601
rm: remove write-protected regular file 'old_logs.delete_after.20230601/ezid.tgz'? yes
rm: remove write-protected regular file 'old_logs.delete_after.20230601/httpd.tgz'? yes