[Bug 1848923] Re: pollinate.service fails to start: ERROR: should execute as the [pollinate] user -- missing CacheDirectory=

2021-02-22 Thread Launchpad Bug Tracker
This bug was fixed in the package pollinate - 4.33-0ubuntu1~18.04.2

---
pollinate (4.33-0ubuntu1~18.04.2) bionic; urgency=medium

  * d/pollinate.service: ensure cache directory is recreated (LP:
#1848923)

 -- Christian Ehrhardt   Tue, 09 Feb
2021 10:57:54 +0100

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

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Title:
  pollinate.service fails to start: ERROR: should execute as the
  [pollinate] user -- missing CacheDirectory=

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[Bug 1848923] Re: pollinate.service fails to start: ERROR: should execute as the [pollinate] user -- missing CacheDirectory=

2021-02-22 Thread Launchpad Bug Tracker
This bug was fixed in the package pollinate - 4.33-3ubuntu1.20.04.1

---
pollinate (4.33-3ubuntu1.20.04.1) focal; urgency=medium

  * d/pollinate.service: ensure cache directory is recreated (LP:
#1848923)

 -- Christian Ehrhardt   Tue, 09 Feb
2021 10:57:54 +0100

** Changed in: pollinate (Ubuntu Focal)
   Status: Fix Committed => Fix Released

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Title:
  pollinate.service fails to start: ERROR: should execute as the
  [pollinate] user -- missing CacheDirectory=

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[Bug 1848923] Re: pollinate.service fails to start: ERROR: should execute as the [pollinate] user -- missing CacheDirectory=

2021-02-22 Thread Launchpad Bug Tracker
This bug was fixed in the package pollinate - 4.33-3ubuntu1.20.10.1

---
pollinate (4.33-3ubuntu1.20.10.1) groovy; urgency=medium

  * d/pollinate.service: ensure cache directory is recreated (LP:
#1848923)

 -- Christian Ehrhardt   Tue, 09 Feb
2021 10:57:54 +0100

** Changed in: pollinate (Ubuntu Groovy)
   Status: Fix Committed => Fix Released

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Title:
  pollinate.service fails to start: ERROR: should execute as the
  [pollinate] user -- missing CacheDirectory=

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[Bug 1848923] Re: pollinate.service fails to start: ERROR: should execute as the [pollinate] user -- missing CacheDirectory=

2021-02-16 Thread Christian Ehrhardt 
For Bionic I have spawned a guest and checked how as-of today it
responds to deleting it's /var/cache/pollinate.

Initially:
$ systemctl status pollinate
● pollinate.service - Pollinate to seed the pseudo random number generator
   Loaded: loaded (/lib/systemd/system/pollinate.service; enabled; vendor 
preset: enabled)
   Active: inactive (dead) since Tue 2021-02-16 09:13:12 UTC; 47s ago
  Process: 775 ExecStart=/usr/bin/pollinate (code=exited, status=0/SUCCESS)
 Main PID: 775 (code=exited, status=0/SUCCESS)

Feb 16 09:13:11 h-qemu-modules systemd[1]: Starting Pollinate to seed the 
pseudo random number generator...
Feb 16 09:13:11 h-qemu-modules pollinate[841]: client sent challenge to 
[https://entropy.ubuntu.com/]
Feb 16 09:13:12 h-qemu-modules pollinate[885]: client verified 
challenge/response with [https://entropy.ubuntu.com/]
Feb 16 09:13:12 h-qemu-modules pollinate[896]: client hashed response from 
[https://entropy.ubuntu.com/]
Feb 16 09:13:12 h-qemu-modules pollinate[897]: client successfully seeded 
[/dev/urandom]
Feb 16 09:13:12 h-qemu-modules systemd[1]: Started Pollinate to seed the pseudo 
random number generator.


After
$ rm -rf /var/cache/pollinate
$ reboot
...
$ systemctl status pollinate
● pollinate.service - Pollinate to seed the pseudo random number generator
   Loaded: loaded (/lib/systemd/system/pollinate.service; enabled; vendor 
preset: enabled)
   Active: failed (Result: exit-code) since Tue 2021-02-16 09:14:43 UTC; 7s ago
  Process: 750 ExecStart=/usr/bin/pollinate (code=exited, status=1/FAILURE)
 Main PID: 750 (code=exited, status=1/FAILURE)

Feb 16 09:14:43 h-qemu-modules systemd[1]: Starting Pollinate to seed the 
pseudo random number generator...
Feb 16 09:14:43 h-qemu-modules systemd[1]: pollinate.service: Main process 
exited, code=exited, status=1/FAILURE
Feb 16 09:14:43 h-qemu-modules systemd[1]: pollinate.service: Failed with 
result 'exit-code'.
Feb 16 09:14:43 h-qemu-modules systemd[1]: Failed to start Pollinate to seed 
the pseudo random number generator


Then Install the new version

$ sudo apt install pollinate
Reading package lists... Done
Building dependency tree   
Reading state information... Done
The following packages will be upgraded:
  pollinate
1 upgraded, 0 newly installed, 0 to remove and 34 not upgraded.
Need to get 11.8 kB of archives.
After this operation, 0 B of additional disk space will be used.
Get:1 http://archive.ubuntu.com/ubuntu bionic-proposed/main amd64 pollinate all 
4.33-0ubuntu1~18.04.2 [11.8 kB]
Fetched 11.8 kB in 0s (219 kB/s)
(Reading database ... 60178 files and directories currently installed.)
Preparing to unpack .../pollinate_4.33-0ubuntu1~18.04.2_all.deb ...
Unpacking pollinate (4.33-0ubuntu1~18.04.2) over (4.33-0ubuntu1~18.04.1) ...
Setting up pollinate (4.33-0ubuntu1~18.04.2) ...
Processing triggers for man-db (2.8.3-2ubuntu0.1) ...
ubuntu@h-qemu-modules:~$ systemctl status pollinate
● pollinate.service - Pollinate to seed the pseudo random number generator
   Loaded: loaded (/lib/systemd/system/pollinate.service; enabled; vendor 
preset: enabled)
   Active: inactive (dead) since Tue 2021-02-16 09:16:12 UTC; 6s ago
  Process: 1569 ExecStart=/usr/bin/pollinate (code=exited, status=0/SUCCESS)
 Main PID: 1569 (code=exited, status=0/SUCCESS)

Feb 16 09:16:12 h-qemu-modules systemd[1]: Starting Pollinate to seed the 
pseudo random number generator...
Feb 16 09:16:12 h-qemu-modules pollinate[1594]: client sent challenge to 
[https://entropy.ubuntu.com/]
Feb 16 09:16:12 h-qemu-modules pollinate[1608]: client verified 
challenge/response with [https://entropy.ubuntu.com/]
Feb 16 09:16:12 h-qemu-modules pollinate[1615]: client hashed response from 
[https://entropy.ubuntu.com/]
Feb 16 09:16:12 h-qemu-modules pollinate[1616]: client successfully seeded 
[/dev/urandom]
Feb 16 09:16:12 h-qemu-modules systemd[1]: Started Pollinate to seed the pseudo 
random number generator.


rm + reboot with new version
$ sudo rm -rf /var/cache/pollinate
$ sudo reboot
$ systemctl status pollinate
● pollinate.service - Pollinate to seed the pseudo random number generator
   Loaded: loaded (/lib/systemd/system/pollinate.service; enabled; vendor 
preset: enabled)
   Active: inactive (dead) since Tue 2021-02-16 09:17:18 UTC; 8s ago
  Process: 746 ExecStart=/usr/bin/pollinate (code=exited, status=0/SUCCESS)
 Main PID: 746 (code=exited, status=0/SUCCESS)

Feb 16 09:17:17 h-qemu-modules systemd[1]: Starting Pollinate to seed the 
pseudo random number generator...
Feb 16 09:17:17 h-qemu-modules pollinate[806]: client sent challenge to 
[https://entropy.ubuntu.com/]
Feb 16 09:17:18 h-qemu-modules pollinate[847]: client verified 
challenge/response with [https://entropy.ubuntu.com/]
Feb 16 09:17:18 h-qemu-modules pollinate[855]: client hashed response from 
[https://entropy.ubuntu.com/]
Feb 16 09:17:18 h-qemu-modules pollinate[856]: client successfully seeded 
[/dev/urandom]
Feb 16 09:17:18 h-qemu-modules systemd[1]: Started Pollinate to seed the pseudo 

[Bug 1848923] Re: pollinate.service fails to start: ERROR: should execute as the [pollinate] user -- missing CacheDirectory=

2021-02-15 Thread Martin Pitt
I now did exactly the same steps as above on an Ubuntu 20.04 VM, with
exactly the same results. This verifies 4.33-3ubuntu1.20.04.1.

** Tags removed: verification-needed-focal
** Tags added: verification-done-focal

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Title:
  pollinate.service fails to start: ERROR: should execute as the
  [pollinate] user -- missing CacheDirectory=

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[Bug 1848923] Re: pollinate.service fails to start: ERROR: should execute as the [pollinate] user -- missing CacheDirectory=

2021-02-15 Thread Martin Pitt
Verification for groovy:

I took a 20.10 VM with current pollinate 4.33-3ubuntu1, and after
booting, pollinate.service is in state failed as per the bug
description.

I then updated to 4.33-3ubuntu1.20.10.1. The package update auto-
restarted pollinate.service, and it looked successful:

# systemctl status pollinate
● pollinate.service - Pollinate to seed the pseudo random number generator
 Loaded: loaded (/lib/systemd/system/pollinate.service; enabled; vendor 
preset: enabled)
 Active: inactive (dead) since Tue 2021-02-16 06:03:56 UTC; 1min 45s ago
   Docs: https://launchpad.net/pollinate
Process: 2815 ExecStart=/usr/bin/pollinate (code=exited, status=0/SUCCESS)
   Main PID: 2815 (code=exited, status=0/SUCCESS)

Feb 16 06:03:56 ubuntu systemd[1]: Starting Pollinate to seed the pseudo random 
number generator...
Feb 16 06:03:56 ubuntu pollinate[2830]: client sent challenge to 
[https://entropy.ubuntu.com/]
Feb 16 06:03:56 ubuntu pollinate[2844]: client verified challenge/response with 
[https://entropy.ubuntu.com/]
Feb 16 06:03:56 ubuntu pollinate[2851]: client hashed response from 
[https://entropy.ubuntu.com/]
Feb 16 06:03:56 ubuntu pollinate[2852]: client successfully seeded 
[/dev/urandom]
Feb 16 06:03:56 ubuntu systemd[1]: pollinate.service: Succeeded.
Feb 16 06:03:56 ubuntu systemd[1]: Finished Pollinate to seed the pseudo random 
number generator.

It does not have RemainAfterExit=, so that is as expected. I rebooted
the VM, and the unit skipped cleanly, again as expected:

# systemctl status pollinate
● pollinate.service - Pollinate to seed the pseudo random number generator
 Loaded: loaded (/lib/systemd/system/pollinate.service; enabled; vendor 
preset: enabled)
 Active: inactive (dead)
  Condition: start condition failed at Tue 2021-02-16 06:06:58 UTC; 6s ago
 └─ ConditionPathExists=!/var/cache/pollinate/seeded was not met
   Docs: https://launchpad.net/pollinate

Feb 16 06:06:58 ubuntu systemd[1]: Condition check resulted in Pollinate
to seed the pseudo random number generator being skipped.

# ls -l /var/cache/pollinate/
total 0
-rw-r--r-- 1 pollinate daemon 0 Feb 16 06:03 seeded

Now let's re-try the cleanup:

# rm -rf /var/cache/*
# reboot

This causes the shutdown process to last a little longer, presumably
because running daemons got their files ripped away underneath them, but
it does succeed. After it came back up, pollinate.service once again ran
successfully like above.

** Tags removed: verification-needed-groovy
** Tags added: verification-done-groovy

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Title:
  pollinate.service fails to start: ERROR: should execute as the
  [pollinate] user -- missing CacheDirectory=

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[Bug 1848923] Re: pollinate.service fails to start: ERROR: should execute as the [pollinate] user -- missing CacheDirectory=

2021-02-15 Thread Robie Basak
Hello Martin, or anyone else affected,

Accepted pollinate into groovy-proposed. The package will build now and
be available at
https://launchpad.net/ubuntu/+source/pollinate/4.33-3ubuntu1.20.10.1 in
a few hours, and then in the -proposed repository.

Please help us by testing this new package.  See
https://wiki.ubuntu.com/Testing/EnableProposed for documentation on how
to enable and use -proposed.  Your feedback will aid us getting this
update out to other Ubuntu users.

If this package fixes the bug for you, please add a comment to this bug,
mentioning the version of the package you tested, what testing has been
performed on the package and change the tag from verification-needed-
groovy to verification-done-groovy. If it does not fix the bug for you,
please add a comment stating that, and change the tag to verification-
failed-groovy. In either case, without details of your testing we will
not be able to proceed.

Further information regarding the verification process can be found at
https://wiki.ubuntu.com/QATeam/PerformingSRUVerification .  Thank you in
advance for helping!

N.B. The updated package will be released to -updates after the bug(s)
fixed by this package have been verified and the package has been in
-proposed for a minimum of 7 days.

** Changed in: pollinate (Ubuntu Groovy)
   Status: Triaged => Fix Committed

** Tags added: verification-needed verification-needed-groovy

** Changed in: pollinate (Ubuntu Focal)
   Status: Triaged => Fix Committed

** Tags added: verification-needed-focal

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Title:
  pollinate.service fails to start: ERROR: should execute as the
  [pollinate] user -- missing CacheDirectory=

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[Bug 1848923] Re: pollinate.service fails to start: ERROR: should execute as the [pollinate] user -- missing CacheDirectory=

2021-02-15 Thread Christian Ehrhardt 
All MPs got approved and I've uploaded this to B/F/G-unapproved.

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Title:
  pollinate.service fails to start: ERROR: should execute as the
  [pollinate] user -- missing CacheDirectory=

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[Bug 1848923] Re: pollinate.service fails to start: ERROR: should execute as the [pollinate] user -- missing CacheDirectory=

2021-02-15 Thread Christian Ehrhardt 
Thanks for your advice Martin, does not like a can-of-worms I'd want/need to 
open today then.
I've myself checked a few cases and indeed many don't fail (or not as hard) 
like pollinate.
So for now let us just fix this.

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Title:
  pollinate.service fails to start: ERROR: should execute as the
  [pollinate] user -- missing CacheDirectory=

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[Bug 1848923] Re: pollinate.service fails to start: ERROR: should execute as the [pollinate] user -- missing CacheDirectory=

2021-02-11 Thread Martin Pitt
@Christian: Debian still needs/wants to support sysvinit. Of course
init.d scripts ought to create cache directories too (like munin,
mopidy, and others already do, but probably not all of them), but that
will be a bit more work. FHS applies to SysV init as well, so the same
reasoning still holds. Also, some postinsts seem to do legitimate work,
like fontconfig which also creates an initial font cache.

If you want to start an MBF, it first needs some initial discussion, or
at least announcement, on debian-devel@ [1]. And then it needs checking
which packages actually have that problem, as I don't think it's
actually *that* many -- two dozens tops? But in general I think this is
a nice goal for sure. (For the record, we have not detected any problems
related to this in the Cockpit test suite on any Debian or Ubuntu image,
except for pollinate)

The "/var/cache/ should be removable" reference is [2], it was already
in comment #9:

[1] 
https://www.debian.org/doc/manuals/developers-reference/beyond-pkging.en.html#reporting-lots-of-bugs-at-once-mass-bug-filing
[2] https://refspecs.linuxfoundation.org/FHS_3.0/fhs/ch05s05.html

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Title:
  pollinate.service fails to start: ERROR: should execute as the
  [pollinate] user -- missing CacheDirectory=

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[Bug 1848923] Re: pollinate.service fails to start: ERROR: should execute as the [pollinate] user -- missing CacheDirectory=

2021-02-11 Thread Christian Ehrhardt 
@Martin - since you made me think about that "/var/cache should be removable 
without impact" I was looking around a bit and I think there would be many more 
packages that are possible affected.
I mean each of them might be an individual case and have or ahve not an impact, 
but this looks like a huge list.

  =>
https://codesearch.debian.net/search?q=mkdir.*%2Fvar%2Fcache+path%3Adebian%2F*=0

@Martin - With your DD-hat on, would that need a mass bug filing in
Debian? Also could you link here to where the quote about /var/cache
being removable was from?

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Title:
  pollinate.service fails to start: ERROR: should execute as the
  [pollinate] user -- missing CacheDirectory=

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[Bug 1848923] Re: pollinate.service fails to start: ERROR: should execute as the [pollinate] user -- missing CacheDirectory=

2021-02-10 Thread Christian Ehrhardt 
Done for 21.04, let us try to fix B/F/G as well.
After all there might be more than just the cockpit images that run into this 
issue.

MPs:
B: 
https://code.launchpad.net/~paelzer/ubuntu/+source/pollinate/+git/pollinate/+merge/397889
F: 
https://code.launchpad.net/~paelzer/ubuntu/+source/pollinate/+git/pollinate/+merge/397890
G: 
https://code.launchpad.net/~paelzer/ubuntu/+source/pollinate/+git/pollinate/+merge/397891

PPA: https://launchpad.net/~ci-train-ppa-service/+archive/ubuntu/4437

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Title:
  pollinate.service fails to start: ERROR: should execute as the
  [pollinate] user -- missing CacheDirectory=

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[Bug 1848923] Re: pollinate.service fails to start: ERROR: should execute as the [pollinate] user -- missing CacheDirectory=

2021-02-10 Thread Launchpad Bug Tracker
** Merge proposal linked:
   
https://code.launchpad.net/~paelzer/ubuntu/+source/pollinate/+git/pollinate/+merge/397889

** Merge proposal linked:
   
https://code.launchpad.net/~paelzer/ubuntu/+source/pollinate/+git/pollinate/+merge/397890

** Merge proposal linked:
   
https://code.launchpad.net/~paelzer/ubuntu/+source/pollinate/+git/pollinate/+merge/397891

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  pollinate.service fails to start: ERROR: should execute as the
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[Bug 1848923] Re: pollinate.service fails to start: ERROR: should execute as the [pollinate] user -- missing CacheDirectory=

2021-02-10 Thread Launchpad Bug Tracker
This bug was fixed in the package pollinate - 4.33-3ubuntu2

---
pollinate (4.33-3ubuntu2) hirsute; urgency=medium

  * d/pollinate.service: ensure cache directory is recreated (LP:
#1848923)

 -- Christian Ehrhardt   Tue, 09 Feb
2021 10:57:54 +0100

** Changed in: pollinate (Ubuntu)
   Status: In Progress => Fix Released

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Title:
  pollinate.service fails to start: ERROR: should execute as the
  [pollinate] user -- missing CacheDirectory=

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[Bug 1848923] Re: pollinate.service fails to start: ERROR: should execute as the [pollinate] user -- missing CacheDirectory=

2021-02-10 Thread Christian Ehrhardt 
SRU Template added.
For backport planning I'll add B/F/G since the solution on't help Xenial and 
that really is old enough by now to have more people complain about this issue 
there to make it super-important.

** Also affects: pollinate (Ubuntu Xenial)
   Importance: Undecided
   Status: New

** Also affects: pollinate (Ubuntu Bionic)
   Importance: Undecided
   Status: New

** Also affects: pollinate (Ubuntu Groovy)
   Importance: Undecided
   Status: New

** Also affects: pollinate (Ubuntu Focal)
   Importance: Undecided
   Status: New

** Changed in: pollinate (Ubuntu Xenial)
   Status: New => Won't Fix

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

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

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

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Title:
  pollinate.service fails to start: ERROR: should execute as the
  [pollinate] user -- missing CacheDirectory=

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[Bug 1848923] Re: pollinate.service fails to start: ERROR: should execute as the [pollinate] user -- missing CacheDirectory=

2021-02-10 Thread Christian Ehrhardt 
MP review complete, uploaded with minor modifications to Hirsute and submitted 
the same to Debian.
Once complete in 21.04 we can think about how far we want to backport this.

** Description changed:

+ [Impact]
+ 
+  * /var/cache is expected to be able to be cleared for a reboot without 
+drawbacks. But the directory of pollinate is a classic cache, yet it 
+only is created in postinst. That leads to the service failing on 
+reboot after the path was cleared.
+For example the cockpit images are affected by that
+ 
+  * The Fix for that is to instruct systemd to (if needed) create that path
+under the same permissions.
+ 
+ [Test Case]
+ 
+  * sudo rm -rf /var/cache/pollinate
+  * sudo reboot
+  * systemctl status pollinate
+ 
+  Without the fix it will fail to start missing the directory (but 
+  complaining about a wrong user). With the fix it works as systemd 
+  recreates that directory if needed.
+ 
+ [Where problems could occur]
+ 
+  * We modify the service file, so issues would be around the 
+/var/cache/pollinate creation/usage or the start/stop/restart
+of the service.
+ 
+ [Other Info]
+  
+  * the postinst bits doeing the mkdir are not removed to easen backport to 
+e.g. Xenial where this systemd feature does not exist.
+ 
+ 
+ 
+ 
  In a standard Ubuntu 19.10 cloud image install, pollinate fails to
  start:
  
  ● pollinate.service - Pollinate to seed the pseudo random number generator
     Loaded: loaded (/lib/systemd/system/pollinate.service; enabled; vendor 
preset: enabled)
     Active: failed (Result: exit-code) since Sun 2019-10-20 12:17:10 EEST; 3 
months 4 days ago
   Docs: https://launchpad.net/pollinate
   Main PID: 665 (code=exited, status=1/FAILURE)
  
  Oct 20 12:17:10 ubuntu systemd[1]: Starting Pollinate to seed the pseudo 
random number generator...
  Oct 20 12:17:10 ubuntu pollinate[708]: ERROR: should execute as the 
[pollinate] user
  Oct 20 12:17:10 ubuntu systemd[1]: pollinate.service: Main process exited, 
code=exited, status=1/FAILURE
  Oct 20 12:17:10 ubuntu systemd[1]: pollinate.service: Failed with result 
'exit-code'.
  Oct 20 12:17:10 ubuntu systemd[1]: Failed to start Pollinate to seed the 
pseudo random number generator.
  
  The user does exist:
  
  # id pollinate
  uid=110(pollinate) gid=1(daemon) groups=1(daemon)
  
  and the unit has "User=pollinate"
  
  This happens outside of systemd as well:
  
  # sudo -u pollinate /usr/bin/pollinate
  <13>Jan 24 09:31:05 pollinate[21456]: ERROR: should execute as the 
[pollinate] user
  
  set -x shows why:
  
  + [ ! -w /var/cache/pollinate ]
  + error should execute as the [pollinate] user
  
  This directory doesn't exist. So (1) this is a bad error message, and
  (2) pollinate.service is missing "CacheDirectory=pollinate". When adding
  that, it works.
  
  pollinate 4.33-2ubuntu1

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[Bug 1848923] Re: pollinate.service fails to start: ERROR: should execute as the [pollinate] user -- missing CacheDirectory=

2021-02-09 Thread Christian Ehrhardt 
I needed a little tweak for the permissions, but other than that the suggestion 
worked fine.
I've prepared that in the PPA and MP for test/review.

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[Bug 1848923] Re: pollinate.service fails to start: ERROR: should execute as the [pollinate] user -- missing CacheDirectory=

2021-02-09 Thread Martin Pitt
** Changed in: pollinate (Ubuntu)
   Status: Confirmed => In Progress

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[Bug 1848923] Re: pollinate.service fails to start: ERROR: should execute as the [pollinate] user -- missing CacheDirectory=

2021-02-09 Thread Christian Ehrhardt 
PPA: 
https://launchpad.net/~paelzer/+archive/ubuntu/lp-1848923-pollinate-var-cache-dir
MP: 
https://code.launchpad.net/~paelzer/ubuntu/+source/pollinate/+git/pollinate/+merge/397719

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[Bug 1848923] Re: pollinate.service fails to start: ERROR: should execute as the [pollinate] user -- missing CacheDirectory=

2021-02-09 Thread Launchpad Bug Tracker
** Merge proposal linked:
   
https://code.launchpad.net/~paelzer/ubuntu/+source/pollinate/+git/pollinate/+merge/397719

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[Bug 1848923] Re: pollinate.service fails to start: ERROR: should execute as the [pollinate] user -- missing CacheDirectory=

2021-02-08 Thread Christian Ehrhardt 
That path is used to detect if it has run before and skip re-execution
as it isn't needed anymore then. A path change might be wanted, but
would either need all sorts of maintscript magic to carry from old to
new location if that has happened on a given system.

The option to use:
  CacheDirectory=pollinate
is very tempting.
Because if the path is there already this does nothing => no re-execution even 
on reboots.

But if running in an environment that has cleaned /var/cache then this
will ensure it is "fine again". I think we can at this time also remove
the mkdir from the postinst.

I'll prep that tomorrow and experiment with it 

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[Bug 1848923] Re: pollinate.service fails to start: ERROR: should execute as the [pollinate] user -- missing CacheDirectory=

2021-02-08 Thread Martin Pitt
> Where could we download one of them to check the state of that path in
there?

See comment #7:

  git clone https://github.com/cockpit-project/bots/
  bots/vm-run ubuntu-stable

But I suppose that's moot now :)

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[Bug 1848923] Re: pollinate.service fails to start: ERROR: should execute as the [pollinate] user -- missing CacheDirectory=

2021-02-08 Thread Martin Pitt
Indeed all our images clear up /var/cache [1]. Sorry, I forgot about
this bit before! An admin should always be able to rm -rf /var/cache,
reboot, and get a fully working system [2]. So if the pollinate data is
in any way precious, it should better be in /var/lib/pollinate then
(similar to /var/lib/systemd/random-seed).

So indeed it seems that CacheDirectory= will be at least *a* fix, or
moving to StateDirectory= and moving the file to /var/lib/pollinate/ if
it's precious.

Thanks Christian for your help here! And sorry for my unnecessarily
harsh words in comment #5, I should not have assumed that it was broken
everywhere. 來

[1] 
https://github.com/cockpit-project/bots/blob/master/images/scripts/lib/zero-disk.setup#L42
[2] https://refspecs.linuxfoundation.org/FHS_3.0/fhs/ch05s05.html

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[Bug 1848923] Re: pollinate.service fails to start: ERROR: should execute as the [pollinate] user -- missing CacheDirectory=

2021-02-08 Thread Christian Ehrhardt 
Awesome debugging Martin!

but while I agree that:
  CacheDirectory=pollinate
would in your case mitigate the issue by systemd providing that directory, it 
would also hide that this dir was lost at some point. The postinst of pollinate 
would have created that dir:

root@h:~# grep cache /var/lib/dpkg/info/pollinate.*
/var/lib/dpkg/info/pollinate.postinst:  adduser --disabled-password --quiet 
--system --home /var/cache/$PKG --ingroup daemon --shell /bin/false $PKG
/var/lib/dpkg/info/pollinate.postinst:mkdir -p /var/cache/$PKG
/var/lib/dpkg/info/pollinate.postinst:chown -f $PKG /var/cache/$PKG
/var/lib/dpkg/info/pollinate.postinst:rm -f /var/cache/$PKG/tag

And only on remove it is removed, which didn't happen here:
/var/lib/dpkg/info/pollinate.postrm:rm -rf /var/lib/$PKG /var/cache/$PKG 
/etc/default/$PKG


And if we examine the groovy image that you referred at 
https://cloud-images.ubuntu.com/daily/server/groovy/current/groovy-server-cloudimg-amd64.img
 it has that path and would therefore not be affected.
Here as example:
$ wget 
https://cloud-images.ubuntu.com/daily/server/groovy/current/groovy-server-cloudimg-amd64.img
...
2021-02-08 16:00:56 (7,71 MB/s) - ‘groovy-server-cloudimg-amd64.img’ saved 
[562692096/562692096]
$ modprobe nbd max_part=8
$ sudo qemu-nbd --connect=/dev/nbd0 /tmp/groovy-server-cloudimg-amd64.img
[sudo] password for paelzer: 
$ sudo fdisk /dev/nbd0 -l
Disk /dev/nbd0: 2,2 GiB, 2361393152 bytes, 4612096 sectors
Units: sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 512 bytes
I/O size (minimum/optimal): 512 bytes / 512 bytes
Disklabel type: gpt
Disk identifier: 063C6DF3-80DF-451F-8EA3-60CA46A6188F

DeviceStart End Sectors  Size Type
/dev/nbd0p1  227328 4612062 4384735  2,1G Linux filesystem
/dev/nbd0p14   2048   1023981924M BIOS boot
/dev/nbd0p15  10240  227327  217088  106M EFI System

Partition table entries are not in disk order.
$ mkdir /tmp/imagedisk
$ sudo mount /dev/nbd0p1 /tmp/imagedisk
$ sudo chroot /tmp/imagedisk
root@Keschdeichel:/# ll /var/cache/pollinate/
total 8
drwxr-xr-x  2 pollinate daemon 4096 Feb  7 11:32 ./
drwxr-xr-x 12 root  root   4096 Feb  7 11:32 ../
root@Keschdeichel:/# exit


Could that be an issue in the creation of the cockpit images that you mentioned?
Where could we download one of them to check the state of that path in there?

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[Bug 1848923] Re: pollinate.service fails to start: ERROR: should execute as the [pollinate] user

2021-02-07 Thread Martin Pitt
Thanks Christian! Interesting, the "ERROR: should execute as the
[pollinate] user" looks quite unrelated to any networking setup and
smelled like a package postinst/systemd unit bug.

I started trying to reproduce this outside of the Ubuntu CI, with a most
naïve

  curl -O 
https://cloud-images.ubuntu.com/daily/server/groovy/current/groovy-server-cloudimg-amd64.img
  curl -O 
https://github.com/cockpit-project/bots/raw/master/machine/cloud-init.iso
  qemu-system-x86_64 -enable-kvm -nographic -m 2048 -device virtio-rng-pci 
-drive file=groovy-server-cloudimg-amd64.img,if=virtio -snapshot -cdrom 
cloud-init.iso

(that cloud-init is nothing special, just to get root:foobar and
admin:foobar accounts, see [1])

But this fails to start ssh.service, and neither does it actually run
cloud-init, so there is no way to log in and examine further. But indeed
it seems to have started pollinate:

[  OK  ] Finished Pollinate to seed…seudo random number generator.
 Starting OpenBSD Secure Shell server...
[  OK  ] Started Dispatcher daemon for systemd-networkd.
[FAILED] Failed to start OpenBSD Secure Shell server.
See 'systemctl status ssh.service' for details.

Our CI uses libvirt for everything, which of course makes a CLI
reproducer a lot more difficult. It's fairly easy when actually using
our python wrappers:

  git clone https://github.com/cockpit-project/bots/
  bots/vm-run ubuntu-stable

(log in as root:foobar)

This downloads the actual image to ~/.cache/cockpit-images and creates a
transient domain with a transient overlay. I attach the `virsh dumpxml`
output, but of course that has a lot of absolute file system paths in
it, UUIDs, and other junk that is specific to my system.

There the pollinate user exists

  # id pollinate
  uid=111(pollinate) gid=1(daemon) groups=1(daemon)

  # systemctl cat pollinate
  [..]
  [Service]
  User=pollinate
  ExecStart=/usr/bin/pollinate
  Type=oneshot

which looks right.

I edited the systemd unit to run pollinate through /bin/sh -ex, and that did 
reveal something:
 
Feb 07 09:24:10 ubuntu sh[2449]: + set -e
Feb 07 09:24:10 ubuntu sh[2449]: + set -f
Feb 07 09:24:10 ubuntu sh[2449]: + PKG=pollinate
Feb 07 09:24:10 ubuntu sh[2450]: + mktemp -d -t pollinate.
Feb 07 09:24:10 ubuntu sh[2449]: + TMPDIR=/tmp/pollinate.77BPmzGSfzFm
Feb 07 09:24:10 ubuntu sh[2449]: + trap rm -rf /tmp/pollinate.77BPmzGSfzFm 
2>/dev/null || true EXIT HUP INT QUIT TERM
Feb 07 09:24:10 ubuntu sh[2449]: + CACHEDIR=/var/cache/pollinate
Feb 07 09:24:10 ubuntu sh[2449]: + FLAG=/var/cache/pollinate/seeded
Feb 07 09:24:10 ubuntu sh[2449]: + LOG=/var/cache/pollinate/log
Feb 07 09:24:10 ubuntu sh[2451]: + hostname
Feb 07 09:24:10 ubuntu sh[2449]: + HOSTNAME=ubuntu
Feb 07 09:24:10 ubuntu sh[2449]: + STRICT=0
Feb 07 09:24:10 ubuntu sh[2453]: + logger -V
Feb 07 09:24:10 ubuntu sh[2454]: + awk {print $4}
Feb 07 09:24:10 ubuntu sh[2449]: + logger_ver=2.36
Feb 07 09:24:10 ubuntu sh[2449]: + dpkg --compare-versions 2.36 ge 2.26.2
Feb 07 09:24:10 ubuntu sh[2449]: + LOGGER=logger --id=2449
Feb 07 09:24:10 ubuntu sh[2449]: + [ -t 0 ]
Feb 07 09:24:10 ubuntu sh[2449]: + [ -r /etc/default/pollinate ]
Feb 07 09:24:10 ubuntu sh[2449]: + . /etc/default/pollinate
Feb 07 09:24:10 ubuntu sh[2449]: + BINARY=1
Feb 07 09:24:10 ubuntu sh[2449]: + QUIET=0
Feb 07 09:24:10 ubuntu sh[2449]: + WAIT=10
Feb 07 09:24:10 ubuntu sh[2449]: + DEVICE=/dev/urandom
Feb 07 09:24:10 ubuntu sh[2449]: + SERVER=https://entropy.ubuntu.com/
Feb 07 09:24:10 ubuntu sh[2449]: + POOL=
Feb 07 09:24:10 ubuntu sh[2449]: + CURL_OPTS=--cacert 
/etc/pollinate/entropy.ubuntu.com.pem --capath /dev/null
Feb 07 09:24:10 ubuntu sh[2449]: + [ ! -z  ]
Feb 07 09:24:10 ubuntu sh[2449]: + [ -z  ]
Feb 07 09:24:10 ubuntu sh[2449]: + [ ! -w /var/cache/pollinate ]
Feb 07 09:24:10 ubuntu sh[2449]: + error should execute as the [pollinate] user
Feb 07 09:24:10 ubuntu sh[2449]: + logger --id=2449 -t pollinate ERROR: should 
execute as the [pollinate] user

/var/cache/pollinate indeed does not exist.

I added

  CacheDirectory=pollinate

to the systemd unit, and that fixes it.

[1] https://github.com/cockpit-project/bots/blob/master/machine/make-
cloud-init-iso


** Attachment added: "virsh dumpxml"
   
https://bugs.launchpad.net/ubuntu/+source/pollinate/+bug/1848923/+attachment/5461032/+files/ubuntu-2004.xml

** Summary changed:

- pollinate.service fails to start: ERROR: should execute as the [pollinate] 
user
+ pollinate.service fails to start: ERROR: should execute as the [pollinate] 
user -- missing CacheDirectory=

** Changed in: pollinate (Ubuntu)
   Status: Incomplete => Confirmed

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[Bug 1848923] Re: pollinate.service fails to start: ERROR: should execute as the [pollinate] user

2021-02-05 Thread Christian Ehrhardt 
Hallo Martin!
o/

Let us split this into

#A
"Not needing it anymore" is a separate discussion that I'll trigger internally.
IMHO not all consumers of e.g. libvirt have followed and if specifying devices 
at all libvirt will not (as it does with some other things) add virtio-rng. I'd 
personally more like to see a "check if good RNG is available, and if so don't 
act" than completely removing it. But that is up for discussion ...

and into

#B
On recreating this I see the same that Paride does ?!?:
@Martin how are you starting your images to fail the way you see it, any 
command line worth to share? Maybe no or only special network to make it fail?
I attached how I started my test systems.

BareMetal:
$ systemctl status pollinate
● pollinate.service - Pollinate to seed the pseudo random number generator
 Loaded: loaded (/lib/systemd/system/pollinate.service; enabled; vendor 
preset: enabled)
 Active: inactive (dead) since Thu 2021-02-04 13:18:00 UTC; 18h ago
   Docs: https://launchpad.net/pollinate
   Main PID: 892 (code=exited, status=0/SUCCESS)

Feb 04 13:17:59 node-horsea systemd[1]: Starting Pollinate to seed the pseudo 
random number generator...
Feb 04 13:18:00 node-horsea systemd[1]: pollinate.service: Succeeded.
Feb 04 13:18:00 node-horsea systemd[1]: Finished Pollinate to seed the pseudo 
random number generator.


Focal KVM Guest booting cloud image:
● pollinate.service - Pollinate to seed the pseudo random number generator
 Loaded: loaded (/lib/systemd/system/pollinate.service; enabled; vendor 
preset: enabled)
 Active: inactive (dead) since Fri 2021-02-05 07:57:52 UTC; 1min 54s ago
   Docs: https://launchpad.net/pollinate
   Main PID: 664 (code=exited, status=0/SUCCESS)

Feb 05 07:57:51 f-pol systemd[1]: Starting Pollinate to seed the pseudo random 
number generator...
Feb 05 07:57:51 f-pol pollinate[710]: client sent challenge to 
[https://entropy.ubuntu.com/]
Feb 05 07:57:52 f-pol pollinate[740]: client verified challenge/response with 
[https://entropy.ubuntu.com/]
Feb 05 07:57:52 f-pol pollinate[747]: client hashed response from 
[https://entropy.ubuntu.com/]
Feb 05 07:57:52 f-pol pollinate[748]: client successfully seeded [/dev/urandom]
Feb 05 07:57:52 f-pol systemd[1]: pollinate.service: Succeeded.
Feb 05 07:57:52 f-pol systemd[1]: Finished Pollinate to seed the pseudo random 
number generator.


Hirsute KVM Guest booting cloud image:
ubuntu@h-pol:~$ systemctl status pollinate
● pollinate.service - Pollinate to seed the pseudo random number generator
 Loaded: loaded (/lib/systemd/system/pollinate.service; enabled; vendor 
preset: enabled)
 Active: inactive (dead) since Fri 2021-02-05 07:57:41 UTC; 2min 11s ago
   Docs: https://launchpad.net/pollinate
   Main PID: 659 (code=exited, status=0/SUCCESS)

Feb 05 07:57:40 h-pol systemd[1]: Starting Pollinate to seed the pseudo random 
number generator...
Feb 05 07:57:41 h-pol pollinate[710]: client sent challenge to 
[https://entropy.ubuntu.com/]
Feb 05 07:57:41 h-pol pollinate[758]: client verified challenge/response with 
[https://entropy.ubuntu.com/]
Feb 05 07:57:41 h-pol pollinate[765]: client hashed response from 
[https://entropy.ubuntu.com/]
Feb 05 07:57:41 h-pol pollinate[766]: client successfully seeded [/dev/urandom]
Feb 05 07:57:41 h-pol systemd[1]: pollinate.service: Succeeded.
Feb 05 07:57:41 h-pol systemd[1]: Finished Pollinate to seed the pseudo random 
number generator.

** Attachment added: "test guest confix, not failing pollinate in the guest"
   
https://bugs.launchpad.net/ubuntu/+source/pollinate/+bug/1848923/+attachment/5460232/+files/f-pol.xml

** Changed in: pollinate (Ubuntu)
   Status: Triaged => Incomplete

** No longer affects: pollinate (Ubuntu Eoan)

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[Bug 1848923] Re: pollinate.service fails to start: ERROR: should execute as the [pollinate] user

2021-02-04 Thread Martin Pitt
I just tested on current 20.04 and 20.10 cloud images, still the same
bug. There was exactly one upload since then [1] which was trivial (just
updating the watch file).

[1] https://launchpad.net/ubuntu/+source/pollinate/+changelog

** Changed in: pollinate (Ubuntu)
   Status: Incomplete => Triaged

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[Bug 1848923] Re: pollinate.service fails to start: ERROR: should execute as the [pollinate] user

2021-02-04 Thread Martin Pitt
One more thing: That package hasn't worked in literally years, and is
also obsolete. QEMU has had `-device virtio-rng-pci` for a long time
now, libvirt uses it by default, and apparently most cloud providers use
that, too. So I suggest to remove the package from Ubuntu, but *at
least* from the default install.

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[Bug 1848923] Re: pollinate.service fails to start: ERROR: should execute as the [pollinate] user

2021-02-04 Thread Paride Legovini
Hi Martin,

I'm marking the Eoan task as Wont't Fix as Eoan reached its EOL. Do you
see this issue in >= Focal? I tried to reproduce it but I wasn't able
too, so if you are able to please share some steps we can follow.
Thanks!

** Changed in: pollinate (Ubuntu Eoan)
   Status: Confirmed => Won't Fix

** Changed in: pollinate (Ubuntu)
   Status: Confirmed => Incomplete

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[Bug 1848923] Re: pollinate.service fails to start: ERROR: should execute as the [pollinate] user

2021-02-03 Thread Launchpad Bug Tracker
Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: pollinate (Ubuntu Eoan)
   Status: New => Confirmed

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[Bug 1848923] Re: pollinate.service fails to start: ERROR: should execute as the [pollinate] user

2021-02-03 Thread Launchpad Bug Tracker
Status changed to 'Confirmed' because the bug affects multiple users.

** Changed in: pollinate (Ubuntu)
   Status: New => Confirmed

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https://bugs.launchpad.net/bugs/1848923

Title:
  pollinate.service fails to start: ERROR: should execute as the
  [pollinate] user

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