[lxc-users] lxc-create fragile with respect to network failures during package download?

[Dan Kegel]

Aw, I wanted to port to lxd anyway.
On May 19, 2016 8:48 PM, "Fajar A. Nugraha" <list at fajar.net> wrote:

> On Fri, May 20, 2016 at 4:02 AM, Dan Kegel <dank at kegel.com> wrote:
>
>> OK, thanks.  I'll port to lxd at some point.  Until then, I'll add a
>> retry loop.
>>
>>
> You shouldn't need to switch to lxd JUST to use a download template (or
> images, in lxd term). Simply "lxc-create -t download ..."
>
> But yeah, your temporary-solution of retry loop should also work for the
> purpose of 'work around a failed package download'
>
> --
> Fajar
>
>
>
>> On Thu, May 19, 2016 at 2:49 AM, Fajar A. Nugraha <list at fajar.net> wrote:
>> > On Thu, May 19, 2016 at 1:50 AM, Dan Kegel <dank at kegel.com> wrote:
>> >>
>> >> The first time, it failed with
>> >> W: Couldn't download package insserv (ver 1.14.0-5ubuntu3 arch amd64)
>> >> I: Retrieving iproute2 4.3.0-1ubuntu3
>> >> W: Couldn't download package iproute2 (ver 4.3.0-1ubuntu3 arch amd64)
>> >> ...
>> >> E: Couldn't download packages: iproute2 insserv
>> >> Delete subvolume (no-commit): '/var/cache/lxc/xenial/partial-amd64'
>> >> lxc-create: lxccontainer.c: create_run_template: 1290 container
>> >> creation template for rbb-ubu1604-1-ubu1604 failed
>> >>
>> >
>> >> Either way, should lxc-create be so willing to abort on package
>> >> download failure, or should it sleep and retry a bit somehow?
>> >
>> >
>> >
>> > IMHO that behavior is correct. The ubuntu template uses debootstrap, so
>> > whatever you're seing is debootstrap's response.
>> >
>> > I suggest you use the download template instead (-t download), which
>> would
>> > basically get a tar file with preconfigured packages. It would help if
>> your
>> > problem was on 'creating new connection phase' (which sometimes would
>> happen
>> > if say ... your ISP employs a transparent http cache) or 'partial
>> > inconsistent mirror' (since you'd only be getting a few files), plus
>> it'd be
>> > much faster (no need for package install and configure phase after
>> download)
>> >
>> > --
>> > Fajar
>> >
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