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Containerization | Scheduled Backups in S3

2022-08-10 15:21:00 【InfoQ】

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Recovering RadonDB MySQL Cluster Data in S3 Backup

”In the article, we show the specific backup and recovery of cluster data in S3 storageOperation process, but only manual backup.

RadonDB MySQL Kubernetes 2.2.0

Added support for scheduled backup of S3 (NFS support is also on the way).

Let's take a look at how this feature is used!

Cron expressions (similar to Linux's crontab timers) can be used to specify timing policies for backups.You just need to set

backupSchedule

spec

in the cluster's YAML filediv>

field.The format is as follows:

... 
spec:
 replicas: 3
 mysqlVersion: "5.7"
 backupSchedule: "0 00 * * * *" # daily
...

Delete the field to cancel the scheduled backup task.

Cron expression format is: second minute hour day month week, that is, a time combination consisting of 6 fields separated by spaces.

Note: The [Month] and [Week] fields are not case sensitive, that is, SUN, Sun and Sun are all accepted.

You can replace the Cron expression with the following predefined time to make the setting more user-friendly.

... 
spec:
 replicas: 3
 mysqlVersion: "5.7"
 backupSchedule: @daily # 0 0 0 ** * Once a day
...

Learn to experience it!

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