InfluxDB driver requires admin influx credentials

[Sam Morrison]

With auth turned on in InfluxDB gnocchi fails as it tries to do a "SHOW DATABASES"

InfluxDBClientError: 401: {"error":"error authorizing query: gnocchi not authorized to execute statement 'SHOW DATABASES', requires admin privilege"}

This is being done to create the DB if it doesn't exist. In our case the DB exists and so it should handle this exception gracefully.

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: master
Review: https://review.openstack.org/269599

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/269599
Committed: https://git.openstack.org/cgit/openstack/gnocchi/commit/?id=8fa223e7658a21c30ca81757f312a98c2eea40d1
Submitter: Jenkins
Branch: master

commit 8fa223e7658a21c30ca81757f312a98c2eea40d1
Author: Julien Danjou <email address hidden>
Date: Tue Jan 19 13:39:05 2016 +0100

    influxdb: do not try to create a database

    This is not the responsibility of the driver to do that.

    Change-Id: I72384a292b62e056f2082cee21bf916561f3d3d7
    Closes-Bug: #1535487

[OpenStack Infra (hudson-openstack)]

Fix proposed to branch: stable/1.3
Review: https://review.openstack.org/270703

[OpenStack Infra (hudson-openstack)]

Reviewed: https://review.openstack.org/270703
Committed: https://git.openstack.org/cgit/openstack/gnocchi/commit/?id=5581fcb56fe1193a718ada4c3ca6c8734609754a
Submitter: Jenkins
Branch: stable/1.3

commit 5581fcb56fe1193a718ada4c3ca6c8734609754a
Author: Julien Danjou <email address hidden>
Date: Tue Jan 19 13:39:05 2016 +0100

    influxdb: do not try to create a database

    This is not the responsibility of the driver to do that.

    Change-Id: I72384a292b62e056f2082cee21bf916561f3d3d7
    Closes-Bug: #1535487
    (cherry picked from commit 8fa223e7658a21c30ca81757f312a98c2eea40d1)