Comment 28 for bug 1808010

Reviewed: https://review.opendev.org/730459
Committed: https://git.openstack.org/cgit/openstack/devstack/commit/?id=4acdb97d27fd1db6e66c5bd50fbf201777c67088
Submitter: Zuul
Branch: stable/rocky

commit 4acdb97d27fd1db6e66c5bd50fbf201777c67088
Author: Lee Yarwood <email address hidden>
Date: Fri May 22 13:03:15 2020 +0100

    tempest: Increase m1.nano and m1.micro RAM by 64MB to avoid tmpfs exhaustion

    tmpfs exhaustion has long been suspected as the root issue behind
    failures to load ssh keys and other metadata from local config drives as
    documented in bug #1808010. This can also lead to failures fetching
    metadata from n-metadata-api leaving Tempest unable to SSH into
    instances.

    This change increases the RAM of the m1.nano and m1.micro flavors by
    64MB to hopefully avoid these errors going forward. This is also ahead
    of our eventual upgrade to Cirros 0.5.0 where 128MB becomes a
    requirement.

    Related-Bug: #1808010
    Change-Id: I4b597579cf89939955d3c110c0bd58ca05de61f0
    (cherry picked from commit 54edc7aeef97df768477b5fa14f8fc45266a9c2e)
    (cherry picked from commit 9707dba33830b8a3ca97fa6abf091d9d1d0d7899)