From a83955bba0e403e279b38ec7088f527b63b6754f Mon Sep 17 00:00:00 2001
From: Andrei Kvapil <kvapss@gmail.com>
Date: Mon, 10 May 2021 11:33:37 +0200
Subject: [PATCH] add backup/restore information

---
 README.md | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/README.md b/README.md
index 9cbce30..146c3cb 100644
--- a/README.md
+++ b/README.md
@@ -88,6 +88,25 @@ kubectl exec -n opennebula -i -c oned <each_oned_pod> -- sh -c 'zcat | mysql -h$
 then disable debug
 
 
+## Upgrade notes
+
+```
+kubectl get pod -n opennebula -l role=leader
+```
+
+Perform backup:
+```
+kubectl exec -n opennebula -c oned <leader_pod> -- sh -c 'mysqldump -h$DB_SERVER -u$DB_USER -p$DB_PASSWD $DB_NAME | gzip -9' > opennebula-db.sql.gz
+```
+
+**To restore**, redeploy release with `--set oned.debug=true` and:
+```
+kubectl exec -n opennebula -i -c oned <each_oned_pod> -- sh -c 'zcat | mysql -h$DB_SERVER -u$DB_USER -p$DB_PASSWD -D$DB_NAME' < opennebula-db.sql.gz
+```
+
+then disable debug
+
+
 ## Upgrade notes
 
 The minor upgrades can be performed by standard way using rolling update, however major updates must be performed by fully chart reinstallation.