Regarding systemd-specific logic, AFAICT we already have some systemd-
specific code for socket activation (see lxd/util/http.go:GetListeners).
I think that conditionally leveraging what systemd offers (in case LXD
is managed by systemd), wouldn't be a bad idea, and the strategy
proposed by Dimitr
It seems that the "failed to open cluster database" error is related to:
https://github.com/lxc/lxd/issues/4485
which should be fixed by:
https://github.com/lxc/lxd/pull/4518
Issue #4485 also contains some info about how to get you unstuck right
now, but you'll want to upgrade to a LXD binary t
The DB upgrade issue is something we've fixed but needs manual
intervention if the user ran into it when installing one of our betas.
I've helped xnox get back online on IRC by restoring a DB backup and
then re-importing some missing containers. This allowed getting back
online with all containers
Start-Date: 2018-04-03 22:22:21
Commandline: apt full-upgrade
Requested-By: xnox (1000)
...
lxc:amd64 (3.0.0~beta3-0ubuntu1, 3.0.0-0ubuntu2), lxd:amd64
(3.0.0~beta5-0ubuntu2, 3.0.0-0ubuntu1),
...
Meanwhile
> Apr 04 09:45:04 sochi lxd[27714]: Error: failed to open
> cluster database: failed to ens
We don't want systemd logic inside LXD itself. If there's a way to tell
systemd in its unit to kill any PostStart tasks when the main process
exits non-zero, then we'd definitely add that to the unit.
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In the environment, INVOCATION_ID= will be set, when the process is
executed under an invocation of a systemd unit. (This can also be
reliably verified from the process keyring). When that is set,
waitready, can check if said invocation _id is present on the current
system's systemd by talking to /
LXD itself doesn't interact with systemd, so I'm not sure how waitready
would know that the main systemd unit failed.
What waitready does is attempt to talk to the LXD API (which will be
blocking due to lxd's socket activation), calling an internal REST API
endpoint to wait for LXD's early initial
