10:29 a.m.
On Mon, Jun 22, 2020 at 4:55 PM Gilboa Davara <gilboad(a)gmail.com> wrote:
On Mon, Jun 22, 2020 at 9:12 AM Yedidyah Bar David <didi(a)redhat.com> wrote:
>
> I agree. Would you like to open a bug about this? It's not always easy
> to know the root cause for the failure, nor to pass it through the
> various components until it can reach the end-user.
Sure. Happy to.
Against which bugzilla component?
Perhaps first have a look at:
https://bugzilla.redhat.com/show_bug.cgi?id=1816002
and decide if to add a comment there, or create new bug (same
product/component).
>
>
> Not sure it must abort. In principle, you could have supplied custom
> ansible code to be ran inside the appliance, to add the items yourself
> to /etc/hosts, or in theory it can also happen that you configured stuff
> so that the host fails DNS resolution but the engine VM does not.
>
> It also asked you:
>
> 2020-06-21 10:49:18,562-0400 DEBUG otopi.plugins.otopi.dialog.human
> dialog.__logString:204 DIALOG:SEND Add lines for the
> appliance itself and for this host to /etc/hosts on the engine VM?
> 2020-06-21 10:49:18,562-0400 DEBUG otopi.plugins.otopi.dialog.human
> dialog.__logString:204 DIALOG:SEND Note: ensuring that
> this host could resolve the engine VM hostname is still up to you
> 2020-06-21 10:49:18,563-0400 DEBUG otopi.plugins.otopi.dialog.human
> dialog.__logString:204 DIALOG:SEND (Yes, No)[No]
>
> And you accepted the default 'No'.
>
> Perhaps we should change the default to Yes.
I must have missed it.
In this case:
A. It is essentially PBKAC.
B. I believe that given the fact the problem was actually detected by
the installer early on, I believe the installer should enforce having
either hosts entry or working DNS setup. (Or at least show a big red
flashing message saying: "Look, are you sure you want to set up a
broken hosted engine VM and that cannot possibly resolve the host
address and will uncertainly fail miserably once we try and deploy the
hosted engine?")
I agree this makes sense, although as I said, it's not fully certain to fail.
The code emitting this warning is general - it's used both here and in
engine-setup.
I agree that here (in hosted-engine) it's more important.
>
> Of course - Yes is also a risk - a user not noticing it, then later on
> changing the DNS, and not understanding why it "does not work"...
Indeed.
> In theory, you can examine the ansible code, and see what (not very
> many) next steps it should have done if it didn't fail there, and do
> that yourself (or decide that they are not important). In practice,
> I'd personally deploy again cleanly, unless this is for a quick test
> or something.
>
> Best regards,
> --
I'll simply clean up and redeploy.
Hopefully after suffering a long string of PBKAC and DNS related
failures, I'll finally have a working setup :)
Good luck!
And again, many thanks for taking the time to assist me.
I appreciate it!
Best regards,
--
Didi