[Bug 1554152] [NEW] pollinate fails in many circumstances, cloud-init reports that failure, maas reports node failed deployment

[Scott Moser]

Public bug reported:

cloud-init runs pollinate via 'cc_seed_random.py' config job.

Some points
a.) in addition to seeding via pollinate seed_random will seed the random device with data from the datasource if it is provided (azure and openstack provide a random seed for this purpose)
b.) we really want seed_random to run before ssh , so that keys are generated with good entropy in place.
c.) seed_random runs early via 'init_modules' mostly to accomplish 'b'.  Unfortunately, network is not guaranteed at this point if the datasource is a 'local' datasource (such as config drive).
e.) in many cases pollinate will not have access to https://entropy.ubuntu.com (due to firewall or disconnected)
f.) in xenial, cloud-init reports events to maas as they occur, and when this module fails, it reports that.
g.) maas marks nodes as failed deployment when cloud-init reports failure

End result, if you dont have access to entropy.ubuntu.com, then you fail
deployment.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: cloud-init 0.7.7~bzr1176-0ubuntu1
ProcVersionSignature: Ubuntu 4.4.0-10.25-generic 4.4.3
Uname: Linux 4.4.0-10-generic x86_64
NonfreeKernelModules: ufs qnx4 hfsplus hfs minix ntfs msdos
ApportVersion: 2.20-0ubuntu3
Architecture: amd64
Date: Mon Mar  7 17:30:00 2016
PackageArchitecture: all
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: cloud-init
UpgradeStatus: No upgrade log present (probably fresh install)

** Affects: cloud-init
     Importance: Undecided
         Status: New

** Affects: maas
     Importance: Undecided
         Status: New

** Affects: cloud-init (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: pollinate (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug uec-images xenial

** Also affects: cloud-init
   Importance: Undecided
       Status: New

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

** Also affects: maas
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1554152

Title:
  pollinate fails in many circumstances, cloud-init reports that
  failure, maas reports node failed deployment

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