[Bug 1802354] Re: iscsid does not run if there are only initramfs initiated targets

[Steve Langasek]

Instead of manually invoking systemctl here which seems like an
abstraction violation to me, I would suggest that open-iscsi.service
should issue an iscsiadm command that talks to the socket and triggers
the daemon to be started.

In effect, '/sbin/iscsiadm -m node --loginall=automatic' already does
this but only for the case that /etc/iscsi/nodes is non-empty.

I would suggest 'iscsiadm -m session -s'.

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https://bugs.launchpad.net/bugs/1802354

Title:
  iscsid does not run if there are only initramfs initiated targets

Status in open-iscsi package in Ubuntu:
  Confirmed

Bug description:
  It was reported that after the changes made in bug 1755858, the iscsid
  service was not running when initramfs (via iscsi_* params or iBft)
  set up an iscsi mount.

  This seems to not be a problem until there is a restart of the iscsi
  *host* service or some other hiccup.  Thus, in normal testing you will
  not see this issue.

  --
  Related bugs:
   * bug 1755858: iscsid autostarts on all servers when it has nothing to do.

  ProblemType: Bug
  DistroRelease: Ubuntu 18.04
  Package: open-iscsi 2.0.874-5ubuntu2.3 [modified: lib/systemd/system/open-iscsi.service]
  ProcVersionSignature: Ubuntu 4.15.0-36.39-generic 4.15.18
  Uname: Linux 4.15.0-36-generic x86_64
  ApportVersion: 2.20.9-0ubuntu7.4
  Architecture: amd64
  Date: Thu Nov  8 17:42:46 2018
  ProcEnviron:
   TERM=screen.xterm-256color
   PATH=(custom, no user)
   LANG=C.UTF-8
   SHELL=/bin/bash
  SourcePackage: open-iscsi
  UpgradeStatus: No upgrade log present (probably fresh install)
  mtime.conffile..etc.iscsi.iscsid.conf: 2018-10-12T16:51:00.187144

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