Devops question: freebsd-update needs a real tty to run, problem for automation
Bryan Drewery
bdrewery at FreeBSD.org
Tue Jan 13 23:29:16 UTC 2015
On 1/13/2015 5:11 PM, Craig Rodrigues wrote:
> Hi,
>
> Ahmed Kamal, a devops expert, is helping me to script the steps to
> upgrade a cluster of FreeBSD machines. For certain machines,
> we want to track the official FreeBSD releases and use freebsd-update
> to install official updates.
>
> We found that when the invocation of freebsd-update was scripted
> and not run via a real tty, we can into this error:
>
> "freebsd-update fetch should not be run non-interactively."
>
> There are various workarounds mentioned on various web pages.
> However, should we modify freebsd-update so that it can work better
> when not run via a real tty? This would make it more devops/automation
> friendly.
>
> The closest thing I have found is "freebsd-update cron", which can fetch
> the updates and run without a real tty. The only problem with
> "freebsd-update cron"
> is that it sleeps a random amount of time between 1 and 3600 seconds before
> fetching the updates. This is OK when run in a cron job,
> but not OK when run as part of a devops automation framework.
>
> Anybody have ideas as to the best way to proceed in fixing this in
> freebsd-update?
> --
> Craig
sed -i '' -e 's,-t 0 ];,-t 0 ] \&\& [ 0 -eq 1 ],' /usr/sbin/freebsd-update
This is untested. We'll likely put it in Poudriere as well.
IMHO the check should be removed in the official version.
--
Regards,
Bryan Drewery
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