[Bug 1723094] Re: Live images should be able to turn off Snap updates

[Samuele Pedroni]

** Changed in: snapd
   Status: Confirmed => Fix Released

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  Live images should be able to turn off Snap updates

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[Bug 1723094] Re: Live images should be able to turn off Snap updates

[Launchpad Bug Tracker]

This bug was fixed in the package casper - 1.391

---
casper (1.391) bionic; urgency=medium

  [ Jean-Baptiste Lallement ]
  * scripts/casper-bottom/55disable_snap_refresh:
- Set refresh timer of snapd to 60 days on live session (LP: #1723094)

  [ Iain Lane ]
  * Modify the script a bit
- Install in /run as a transient directory
- Be WantedBy snapd.service, instead of Requires snapd.service & WantedBy
  multi-user.target, and update the symlink to match. It makes sense for
  us to order ourself to start right after snapd does.

 -- Jean-Baptiste Lallement 
Thu, 22 Mar 2018 09:49:54 +0100

** Changed in: casper (Ubuntu Bionic)
   Status: Fix Committed => Fix Released

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Title:
  Live images should be able to turn off Snap updates

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[Bug 1723094] Re: Live images should be able to turn off Snap updates

[Iain Lane]

I've uploaded, thanks for the contribution. I made a couple of changes
as detailed in the changelog. After testing - it's quite irritating to
test casper-bottom changes! - it still worked for me, but feel free to
check yourself.

** Changed in: casper (Ubuntu Bionic)
   Status: Triaged => Fix Committed

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  Live images should be able to turn off Snap updates

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[Bug 1723094] Re: Live images should be able to turn off Snap updates

[Jean-Baptiste Lallement]

Thanks. For info I tested with a 3 weeks old ISO with out of date
preinstalled snap packages on which I installed snapd 2.32 and casper
with this patch and I verified that refresh.hold is set to 60d in the
future and that no snap package is refreshed.

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  Live images should be able to turn off Snap updates

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[Bug 1723094] Re: Live images should be able to turn off Snap updates

[Iain Lane]

thanks, I'm testing and will sponsor

** Changed in: casper (Ubuntu Bionic)
 Assignee: Jean-Baptiste Lallement (jibel) => Iain Lane (laney)

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  Live images should be able to turn off Snap updates

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[Bug 1723094] Re: Live images should be able to turn off Snap updates

[Jean-Baptiste Lallement]

Updated to inject the service file in /etc instead of /lib

** Patch removed: "casper_1.391.debdiff"
   
https://bugs.launchpad.net/snapd/+bug/1723094/+attachment/5086742/+files/casper_1.391.debdiff

** Patch added: "casper_1.391.debdiff"
   
https://bugs.launchpad.net/snapd/+bug/1723094/+attachment/5086948/+files/casper_1.391.debdiff

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  Live images should be able to turn off Snap updates

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[Bug 1723094] Re: Live images should be able to turn off Snap updates

[Ubuntu Foundations Team Bug Bot]

The attachment "casper_1.391.debdiff" seems to be a debdiff.  The
ubuntu-sponsors team has been subscribed to the bug report so that they
can review and hopefully sponsor the debdiff.  If the attachment isn't a
patch, please remove the "patch" flag from the attachment, remove the
"patch" tag, and if you are member of the ~ubuntu-sponsors, unsubscribe
the team.

[This is an automated message performed by a Launchpad user owned by
~brian-murray, for any issue please contact him.]

** Tags added: patch

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  Live images should be able to turn off Snap updates

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[Bug 1723094] Re: Live images should be able to turn off Snap updates

[Samuele Pedroni]

in a properly working snapd 2.32 60 days are computed from seed-time,
which is when the snaps are installed at first boot (there are fallbacks
based on other things but those are for corner cases, or preexisting
installations)

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  Live images should be able to turn off Snap updates

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[Bug 1723094] Re: Live images should be able to turn off Snap updates

[Jean-Baptiste Lallement]

This patch adds a casper script to inject a systemd unit that sets
refresh.hold to 60d in the future.

** Changed in: casper (Ubuntu)
 Assignee: (unassigned) => Jean-Baptiste Lallement (jibel)

** Changed in: casper (Ubuntu)
   Importance: Undecided => Medium

** Changed in: casper (Ubuntu)
   Status: New => Triaged

** Also affects: casper (Ubuntu Bionic)
   Importance: Medium
 Assignee: Jean-Baptiste Lallement (jibel)
   Status: Triaged

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  Live images should be able to turn off Snap updates

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[Bug 1723094] Re: Live images should be able to turn off Snap updates

[Jean-Baptiste Lallement]

** Patch added: "casper_1.391.debdiff"
   
https://bugs.launchpad.net/ubuntu/+source/casper/+bug/1723094/+attachment/5086742/+files/casper_1.391.debdiff

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Title:
  Live images should be able to turn off Snap updates

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Re: [Bug 1723094] Re: Live images should be able to turn off Snap updates

[Iain Lane]

On Wed, Mar 21, 2018 at 09:59:24AM -, Michael Hudson-Doyle wrote:
> > It doesn't say what the maximum number of days is since - do you know?
> > If it it since the last refresh, is that the date that the image was
> > created? If so, what happens if your image is more than 60 days old? It
> > sounds to me like this spec won't let you hold refresh in that case.
> > Have you checked this?
> >
> 
> I assume that it's 60 days since the seeding process (how would snapd know
> how old the image is?). But I haven't checked.

Like (I'm making this up) if the `snap download' that we do records the
date, or if the core snap that we seed contains a published date and
this is considered the last refresh date if no explicit refresh has
happened yet.

It's a problem we were concerned about especially for LTS releases where
the ISOs people download might be quite old.

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Ubuntu Developer   [ la...@ubuntu.com ]

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  Live images should be able to turn off Snap updates

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Re: [Bug 1723094] Re: Live images should be able to turn off Snap updates

[Michael Hudson-Doyle]

On 21 March 2018 at 22:23, Iain Lane  wrote:

> On Wed, Mar 21, 2018 at 08:13:23AM -, Michael Hudson-Doyle wrote:
> > For the record, the plan for the live server installer is to run “snap
> > set core refresh.hold=$(date --date=now+60days --iso-8601=seconds)”
> > fairly early on. If people leave their live sessions going for 60 days,
> > so be it…
>
> The installer itself will run that?
>

Well
https://code.launchpad.net/~mwhudson/livecd-rootfs/live-server-set-refresh.hold/+merge/341801
is my not very elegant proposal so far


> I see from here
>
>   https://forum.snapcraft.io/t/development-sprint-march-5th-2018/4345/11
>
> "At the refresh attempt, if inside a hold window, skip it as long as it
> doesn’t go beyond the maximum number of days (60 days right now)
>
> Must warn if requested hold cannot be respected due to maximum period"
>
> It doesn't say what the maximum number of days is since - do you know?
> If it it since the last refresh, is that the date that the image was
> created? If so, what happens if your image is more than 60 days old? It
> sounds to me like this spec won't let you hold refresh in that case.
> Have you checked this?
>

I assume that it's 60 days since the seeding process (how would snapd know
how old the image is?). But I haven't checked.


>
> Probably easier if I just comment on that thread:
>
>   https://forum.snapcraft.io/t/development-sprint-march-5th-2018/4345/35
>
> Cheers,
>
> --
> Iain Lane  [ i...@orangesquash.org.uk ]
> Debian Developer   [ la...@debian.org ]
> Ubuntu Developer   [ la...@ubuntu.com ]
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> report.
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>
> Title:
>   Live images should be able to turn off Snap updates
>
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  Live images should be able to turn off Snap updates

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Re: [Bug 1723094] Re: Live images should be able to turn off Snap updates

[Iain Lane]

On Wed, Mar 21, 2018 at 08:13:23AM -, Michael Hudson-Doyle wrote:
> For the record, the plan for the live server installer is to run “snap
> set core refresh.hold=$(date --date=now+60days --iso-8601=seconds)”
> fairly early on. If people leave their live sessions going for 60 days,
> so be it…

The installer itself will run that?

I see from here

  https://forum.snapcraft.io/t/development-sprint-march-5th-2018/4345/11

"At the refresh attempt, if inside a hold window, skip it as long as it
doesn’t go beyond the maximum number of days (60 days right now)

Must warn if requested hold cannot be respected due to maximum period"

It doesn't say what the maximum number of days is since - do you know?
If it it since the last refresh, is that the date that the image was
created? If so, what happens if your image is more than 60 days old? It
sounds to me like this spec won't let you hold refresh in that case.
Have you checked this?

Probably easier if I just comment on that thread:

  https://forum.snapcraft.io/t/development-sprint-march-5th-2018/4345/35

Cheers,

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Title:
  Live images should be able to turn off Snap updates

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[Bug 1723094] Re: Live images should be able to turn off Snap updates

[Michael Hudson-Doyle]

For the record, the plan for the live server installer is to run “snap
set core refresh.hold=$(date --date=now+60days --iso-8601=seconds)”
fairly early on. If people leave their live sessions going for 60 days,
so be it…

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Title:
  Live images should be able to turn off Snap updates

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[Bug 1723094] Re: Live images should be able to turn off Snap updates

[Will Cooke]

I think this is already being addressed, but for completeness, the issue
is that the snap updates and then exhausts all available RAM causing the
live session to crash.


** Changed in: snapd
   Status: Incomplete => Confirmed

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  Live images should be able to turn off Snap updates

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[Bug 1723094] Re: Live images should be able to turn off Snap updates

[Zygmunt Krynicki]

I think the only way to do that today is to disable the service and the
(fallback) refresh timer.

Is there a technical problem with the update or just a preference to not
do this?

** Changed in: snapd
   Status: Triaged => Incomplete

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  Live images should be able to turn off Snap updates

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[Bug 1723094] Re: Live images should be able to turn off Snap updates

[Michael Vogt]

** Changed in: snapd
   Status: New => Triaged

** Changed in: snapd
   Importance: Undecided => Medium

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[Bug 1723094] Re: Live images should be able to turn off Snap updates

[Colin Watson]

snapcraft handles building; this seems like more of a snapd thing.

But is anything actually needed in snapd?  Couldn't casper just do
"systemctl disable snapd.refresh.service"?

** Project changed: snapcraft => snapd

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