For the record: the "hang" was the ~ 10s timeout for IPv6 RA. I was
testing with Yakkety/Zesty's QEMU whose "user" net has a builtin RA (you
get an fec0::* address), while xenial's doesn't.
We enable RA (on the client side) by default, and IMHO should really do
so -- selling a new solution in 2016 which does not speak IPv6 would be
hilarious. You can't also significantly reduce the timeout, as this
would make RA unreliable and it's presumably also a specification
somewhere.
So AFAICS the remaining issue is just to make networkd run before
dbus.service/socket in systemd, and add "After=networking.service
systemd-networkd-wait-online.service" and drop
"Wants=networking.service" in cloud-init.service.
** Changed in: systemd (Ubuntu)
Milestone: None => ubuntu-16.11
** Changed in: systemd (Ubuntu)
Status: Triaged => In Progress
** Changed in: systemd (Ubuntu Xenial)
Status: Triaged => In Progress
** Changed in: systemd (Ubuntu Xenial)
Assignee: (unassigned) => Martin Pitt (pitti)
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https://bugs.launchpad.net/bugs/1636912
Title:
systemd-networkd runs too late for cloud-init.service (net)
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