This bug was fixed in the package nplan - 0.32~17.10.1
---------------
nplan (0.32~17.10.1) artful; urgency=medium
* Backport 0.32 to Ubuntu 17.10. (LP: #1713142)
nplan (0.32) bionic; urgency=medium
* src/nm.c: better handle the UUID generation; the order of iterating
through interaces may affect things here. Also make sure the tests catch
a null UUID.
nplan (0.31) bionic; urgency=medium
[ Mathieu Trudel-Lapierre ]
* src/nm.c: generate a UUID for a connection only as needed; when we're
dealing with NM VLANs. (LP: #1712921)
* debian/tests/autostart: Make the autostart test more verbose and avoid
failing right from the start when systemd-networkd is disabled.
(LP: #1699371)
* tests/integration.py: bump the NetworkManager timeout for settling to
120 seconds, autopkgtest infrastructure tends to be a little slow for the
network device configuration to be applied and noticed by NM.
(LP: #1699371)
[ Dimitri John Ledkov ]
* Reload udevd to invalidate configuration cache of .rules/.link files
as generate step may have changed them. LP: #1669564
[ Dan Streetman ]
* Add another interface driver exception to netplan replug to prevent unbind
of the Xen VIF interfaces. (LP: #1729573)
-- Mathieu Trudel-Lapierre <cypher...@ubuntu.com> Thu, 23 Nov 2017
12:30:51 -0500
** Changed in: nplan (Ubuntu Artful)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1712921
Title:
enabling networkd appears to eat up entropy
Status in nplan package in Ubuntu:
Fix Released
Status in openssh package in Ubuntu:
Fix Released
Status in systemd package in Ubuntu:
Triaged
Status in nplan source package in Xenial:
Fix Committed
Status in openssh source package in Xenial:
New
Status in systemd source package in Xenial:
New
Status in nplan source package in Zesty:
Fix Committed
Status in openssh source package in Zesty:
New
Status in systemd source package in Zesty:
New
Status in nplan source package in Artful:
Fix Released
Status in openssh source package in Artful:
Fix Released
Status in systemd source package in Artful:
Triaged
Status in nplan source package in Bionic:
Fix Released
Status in openssh source package in Bionic:
Fix Released
Status in systemd source package in Bionic:
Triaged
Bug description:
[Impact]
Booting systems have a limited amount of entropy, especially in some of the
cloud cases. We should avoid using it up unnecessarily.
[Test cases]
== netplan ==
1) Boot system with netplan config; using networkd renderer
2) Validate that it starts and does not cause undue delay.
2b) strace nplan at boottime (the netplan generator at
/lib/systemd/system-generators/netplan) and validate it does not call
get_random() / uuid_generate().
3) Validate that config with NetworkManager renderer generates UUIDs.
[Regression potential]
Netplan depends on UUID generation to create correct networkManager
configuration for VLANs. This is a specific use-case that is typically not hit,
but any failure to generate valid NetworkManager configuration would be a
regression from this SRU.
---
enabling networkd appears to eat up entropy
as seen in openssh autopkgtest failing, when networkd is enabled by
default.
See http://autopkgtest.ubuntu.com/packages/openssh/artful/amd64 with
triggers systemd/234-2ubuntu9
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