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devstack
Code Issues Proposed changes

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
This commit is contained in:
Lee Yarwood 2020-05-22 13:03:15 +01:00
parent 43c172acd0
commit 54edc7aeef
1 changed files with 2 additions and 2 deletions
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4
lib/tempest
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@ -203,13 +203,13 @@ function configure_tempest {
if [[ ! ( $available_flavors =~ 'm1.nano' ) ]]; then
# Determine the flavor disk size based on the image size.
disk=$(image_size_in_gib $image_uuid)
openstack flavor create --id 42 --ram 64 --disk $disk --vcpus 1 --property hw_rng:allowed=True m1.nano
openstack flavor create --id 42 --ram 128 --disk $disk --vcpus 1 --property hw_rng:allowed=True m1.nano
fi
flavor_ref=42
if [[ ! ( $available_flavors =~ 'm1.micro' ) ]]; then
# Determine the alt flavor disk size based on the alt image size.
disk=$(image_size_in_gib $image_uuid_alt)
openstack flavor create --id 84 --ram 128 --disk $disk --vcpus 1 --property hw_rng:allowed=True m1.micro
openstack flavor create --id 84 --ram 192 --disk $disk --vcpus 1 --property hw_rng:allowed=True m1.micro
fi
flavor_ref_alt=84
else