[Bug 1525361] [NEW] Install of package only fails when running through cloud-init

[Matt Conway]

Public bug reported:

I'm not sure if this is a cloud-init issue, a systemd issue, or an issue
with the package I'm trying to install, but given that I can install the
package fine outside of cloud-init, I thought I'd mention it here in
case this is an issue with cloud-init/wily/systemd, or perhaps someone
more knowledgeable can suggest a workaround.

To summarize, this is easily duplicated by spinning up a new ec2
instance using ami-305d115a on a m3.medium and the following user-data:

#!/bin/bash
export DEBIAN_FRONTEND=noninteractive
sudo apt-key adv --keyserver hkp://p80.pool.sks-keyservers.net:80 --recv-keys 58118E89F3A912897C070ADBF76221572C52609D
sudo bash -c 'echo "deb https://apt.dockerproject.org/repo ubuntu-wily main" > /etc/apt/sources.list.d/docker.list'
sudo apt-get update && sudo apt-get install -y docker-engine

Expected:
To be able to install the package via ec2-user-data/cloud-init

Actual:
Package fails to install through cloud-init, but installs fine at terminal.  Comparing the "journal -xe" from both cases seems to indicate that a dependent systemd service (docker.socket) installed by the package is not getting started when the install is run from cloud-init

More details:
https://github.com/docker/docker/issues/18444

System details:

# uname -a
Linux ip-10-229-17-174 4.2.0-19-generic #23-Ubuntu SMP Wed Nov 11 11:39:30 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux

# lsb_release -a
No LSB modules are available.
Distributor ID:	Ubuntu
Description:	Ubuntu 15.10
Release:	15.10
Codename:	wily

# apt-cache policy cloud-init
cloud-init:
  Installed: 0.7.7~bzr1149-0ubuntu4
  Candidate: 0.7.7~bzr1149-0ubuntu5
  Version table:
     0.7.7~bzr1149-0ubuntu5 0
        500 http://us-east-1.ec2.archive.ubuntu.com/ubuntu/ wily-updates/main amd64 Packages
 *** 0.7.7~bzr1149-0ubuntu4 0
        100 /var/lib/dpkg/status
     0.7.7~bzr1149-0ubuntu1 0
        500 http://us-east-1.ec2.archive.ubuntu.com/ubuntu/ wily/main amd64 Packages

# apt-cache policy systemd   
systemd:
  Installed: 225-1ubuntu9
  Candidate: 225-1ubuntu9
  Version table:
 *** 225-1ubuntu9 0
        500 http://us-east-1.ec2.archive.ubuntu.com/ubuntu/ wily/main amd64 Packages
        100 /var/lib/dpkg/status

# apt-cache policy docker-engine
docker-engine:
  Installed: (none)
  Candidate: 1.9.1-0~wily
  Version table:
     1.9.1-0~wily 0
        500 https://apt.dockerproject.org/repo/ ubuntu-wily/main amd64 Packages
     1.9.0-0~wily 0
        500 https://apt.dockerproject.org/repo/ ubuntu-wily/main amd64 Packages
     1.8.3-0~wily 0
        500 https://apt.dockerproject.org/repo/ ubuntu-wily/main amd64 Packages
     1.8.2-0~wily 0
        500 https://apt.dockerproject.org/repo/ ubuntu-wily/main amd64 Packages
     1.8.1-0~wily 0
        500 https://apt.dockerproject.org/repo/ ubuntu-wily/main amd64 Packages
     1.8.0-0~wily 0
        500 https://apt.dockerproject.org/repo/ ubuntu-wily/main amd64 Packages
     1.7.1-0~wily 0
        500 https://apt.dockerproject.org/repo/ ubuntu-wily/main amd64 Packages
     1.6.2-0~wily 0
        500 https://apt.dockerproject.org/repo/ ubuntu-wily/main amd64 Packages
     1.6.1-0~wily 0
        500 https://apt.dockerproject.org/repo/ ubuntu-wily/main amd64 Packages
     1.6.0-0~wily 0
        500 https://apt.dockerproject.org/repo/ ubuntu-wily/main amd64 Packages
     1.5.0-0~wily 0
        500 https://apt.dockerproject.org/repo/ ubuntu-wily/main amd64 Packages

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

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https://bugs.launchpad.net/bugs/1525361

Title:
  Install of package only fails when running through cloud-init

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