Change in ovirt-hosted-engine-setup[master]: upgrade: prevent deploying additional 3.6 host on a 3.5 setup

[sbonazzo at redhat.com]

Sandro Bonazzola has submitted this change and it was merged.

Change subject: upgrade: prevent deploying additional 3.6 host on a 3.5 setup
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upgrade: prevent deploying additional 3.6 host on a 3.5 setup

Deploying an additional 3.6 hosted-engine host requires an
existing 3.6 system. Mixing 3.6 and 3.5 hosts in the same HE
cluster is not supported: in order to deploy a new 3.6 host,
the user has to update existing hosts to 3.6,
and only then add the new host.
Looking for the presence of the configuration image uuid
in the answerfile, we can detect if the answerfile is
from 3.5 or 3.6, and warn the user if needed.

Change-Id: I9283e5d45eba63b4bfbb99343af1b4331856b6a5
Bug-Url: https://bugzilla.redhat.com/1306825
Signed-off-by: Simone Tiraboschi <stirabos at redhat.com>
---
M src/ovirt_hosted_engine_setup/constants.py
M src/plugins/ovirt-hosted-engine-setup/core/remote_answerfile.py
M src/plugins/ovirt-hosted-engine-setup/storage/heconf.py
3 files changed, 75 insertions(+), 6 deletions(-)

Approvals:
  Sandro Bonazzola: Looks good to me, approved
  Simone Tiraboschi: Verified
  Jenkins CI: Passed CI tests
  Yedidyah Bar David: Looks good to me, but someone else must approve



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Gerrit-MessageType: merged
Gerrit-Change-Id: I9283e5d45eba63b4bfbb99343af1b4331856b6a5
Gerrit-PatchSet: 4
Gerrit-Project: ovirt-hosted-engine-setup
Gerrit-Branch: master
Gerrit-Owner: Simone Tiraboschi <stirabos at redhat.com>
Gerrit-Reviewer: Jenkins CI
Gerrit-Reviewer: Liron Aravot <laravot at redhat.com>
Gerrit-Reviewer: Sandro Bonazzola <sbonazzo at redhat.com>
Gerrit-Reviewer: Simone Tiraboschi <stirabos at redhat.com>
Gerrit-Reviewer: Yedidyah Bar David <didi at redhat.com>
Gerrit-Reviewer: gerrit-hooks <automation at ovirt.org>