From 60405866bf37d041ae7e0ceec6e40ce25d8f6606 Mon Sep 17 00:00:00 2001
From: Pjotr Prins
Date: Mon, 25 Oct 2021 17:39:13 +0200
Subject: Fixes

---
 topics/systems/tux02-production.gmi | 26 ++++++++++++++++++++++++--
 1 file changed, 24 insertions(+), 2 deletions(-)

(limited to 'topics')

diff --git a/topics/systems/tux02-production.gmi b/topics/systems/tux02-production.gmi
index 435fe49..3a0a3c7 100644
--- a/topics/systems/tux02-production.gmi
+++ b/topics/systems/tux02-production.gmi
@@ -22,18 +22,40 @@ We are going to move production to tux02 - tux01 will be the staging machine. Th
 * [X] add Genenetwork3 service
       env FLASK_APP="main.py" flask run --port=8087
 * [X] add proxy
-* [ ] setup https and letsencrypt
+* [ ] set up databases
+* [ ] set up https and letsencrypt
 * [X] set up firewalling
 * [ ] set up systemd
 * [ ] setup logrotate for production log files
 * [ ] run git automatically on /etc and backup without passwords
 * [ ] add borg backups
+* [ ] create check list for manual testing
 * [ ] look at performance
 
 ## Info
 
-Restoring a database from backup (under an hour)
+We have a protocol for updating GN2 on Tux02.
+
+### Restore database from backup
+
+Databases no longer get copied. We only restore from backup. First because these are reproducible [installs]. Second because the backup should be in a sane state(!).
+
+Restoring a database from backup (about an hour)
 
 ```
 root@tux02:/export3/backup/tux01/borg# borg extract borg-tux01::borg-backup-mariadb-20211024-03:09-Sun --progress
 ```
+
+Next move the dir to fast storage.
+
+#### Symlink /var/lib/mysql
+
+The database is symlinked. You can point that to the recovered backup. Restart the DB and run mysql_upgrade followed by our tests. E.g.
+
+```
+systemctl stop mariadb
+ln -s /export2/mysql/borg-backup-mariadb-20211024-03\:09-Sun /var/lib/mysql
+systemctl start mariadb
+/usr/local/guix-profiles/gn-latest-20211021/bin/mysql_upgrade -u webqtlout -pwebqtlout
+/export/backup/scripts/tux02/system_check.sh
+```
-- 
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