[Bug 1630946] Re: ubuntu-server depends on open-iscsi and runs iscsid

[ Christian Ehrhardt ]

This is currently spread across different seeds, we have:

ubuntu.<release>/server
  * open-iscsi
# This is Needed by MAAS images to deploy via iscsi

ubuntu.<release>/server-ship
  * open-iscsi
  * open-iscsi-udeb
# This is for the installer on/through iscsi (server images)

ubuntu.<release>/ship
  * open-iscsi
  * open-iscsi-udeb
# This is for the installer on/through iscsi (non server images)

I think it would be enough to change the first of these, we don't need
to even touch the -ship seeds. We want this on the CD Images for
convenience and the installer as needed.

So we only talk about ubuntu.<release>/server here and have to requests in one:
a - some want to be able to remove it without removing ubuntu-server (easy, by drop to recommends)
b - some want it not installed by default at all, for that we would need to find a different solution for MAAS images and check if there are others relying on this.

I thought I'd make a merge proposal for Cosmic for (a) and solve it soon.
But then I realized (b) is very different, due to the unification of images I'm not so sure we can fix (b) easily without harmstring various use-cases.
I'll send a few mails to clarify and then come back here with either a (a) fix or an (a+b) fix if there is a way to do so.

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https://bugs.launchpad.net/bugs/1630946

Title:
  ubuntu-server depends on open-iscsi and runs iscsid

Status in ubuntu-meta package in Ubuntu:
  Confirmed

Bug description:
  ubuntu-server has a hard dependency on open-iscsi, which means there
  is a daemon running (iscsid), and the package cannot be removed. All
  unnecessary daemons are a cause of concern when auditing a system.

  Propose moving this to "Recommends" instead, which currently has:

  Recommends: lxd, snapd

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: ubuntu-server 1.361
  ProcVersionSignature: Ubuntu 4.4.0-38.57-generic 4.4.19
  Uname: Linux 4.4.0-38-generic x86_64
  NonfreeKernelModules: zfs zunicode zcommon znvpair zavl
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  Date: Thu Oct  6 10:43:04 2016
  Ec2AMI: ami-c06b1eb3
  Ec2AMIManifest: (unknown)
  Ec2AvailabilityZone: eu-west-1a
  Ec2InstanceType: t2.medium
  Ec2Kernel: unavailable
  Ec2Ramdisk: unavailable
  ProcEnviron:
   TERM=xterm-256color
   SHELL=/bin/bash
   PATH=(custom, user)
   LANG=en_US.UTF-8
   XDG_RUNTIME_DIR=<set>
  SourcePackage: ubuntu-meta
  UpgradeStatus: No upgrade log present (probably fresh install)

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