Comment 129 for bug 1823200

Reviewed: https://review.opendev.org/749833
Committed: https://git.openstack.org/cgit/openstack/os-brick/commit/?id=173601116eb5e00274b10898b56b37dc42d685ac
Submitter: Zuul
Branch: stable/stein

commit 173601116eb5e00274b10898b56b37dc42d685ac
Author: Gorka Eguileor <email address hidden>
Date: Thu Aug 13 13:13:02 2020 +0200

    ScaleIO: Connection info backward compatibility

    When we fixed bug 1823200 in Change-ID
    Iab54c515fe7be252df52b1a0503a251779805759 we made the ScaleIO connector
    incompatible with the old connection properties dictionary as it only
    supported the new 'config_group' and 'failed_over' parameters to get the
    password.

    This is a problem in any system that is upgraded and has attachments to
    the array, because the connection properties of those volumes will not
    contain the new fields and detaching them will result in error
    "KeyError: 'config_group'".

    This patch adds compatibility code to support the old connection
    properties format so we can detach those volumes.

    This patch includes the release note from Change
    Ib98043358d51426ca650104ad59a7e09911ee8e9

    Related-Bug: #1823200
    Change-Id: I6f01a178616b74ed9a86876ca46e7e46eb360518
    (cherry picked from commit 54504830828757e9d72e9440dde9cff33684a74d)
    (cherry picked from commit 31589a624fe8d2ebb56ccbd9c94a8dd559a7da89)
    Conflicts:
            os_brick/initiator/connectors/scaleio.py
    (cherry picked from commit db95b001e2fe53a71ec0b881407ecdf7c3db32fc)