webuhu
I try to get some opinions about the following use case for Elixir.
I currently have shell scripts for the task of a nightly file backup.
Local commands
- mount encrypted securefs storage (“long” running interactive shell command - type password)
- rsync files to securefs mount
- stop securefs mount process
- rsync encrypted securefs storage files to remote storage
Remote commands
- rotate backups (
mv&cp -al)
Now, I’m thinking about triggering all of this commands from within an Elixir application.
Is this a good idea? By heavily using System.cmd/3 and maybe Port.
Where in this use case is using Port the better choice?
The case why I would love to do all of the above in Elixir, is I want to use my existing Logger backends for e.g. log to Matrix on success, log to SMS on failure.
And I wouln’t need to configure a cronjob for running the nightly backup task.
So what are your thoughts about this?
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LostKobrakai
Personally I favour pull based backups, and I have an elixir application connecting to some of our servers and doing db backups and moving them to S3. I only wouldn’t want to let the application I want to backup data of handle it’s own backuping. Chances are a bug, which requires you to rollback to a backup could also have broken the backup system, so keeping those separate from each other is probably a good idea.
webuhu
Good idea to use pull data instead of push.
But of course the system (local commands) are already separated from the data layer.