ubuntu_lxc: api_test.py / lxc-test-apparmor-mount / lxc-test-autostart / lxc-test-no-new-privs / lxc-test-unpriv failing with "ERROR: Invalid signature"

[Tim Gardner]

linux-aws-5.11 5.11.0-1020.21~20.04.2

5 ubuntu_lxc tests (api_test.py / lxc-test-apparmor-mount / lxc-test-autostart / lxc-test-no-new-privs / lxc-test-unpriv) failed on 4 instances; a1.medium, c6g.8xlarge, i3en.24xlarge, t2.small

All failures are identical:

    Downloading the image index
    ERROR: Invalid signature for /tmp/tmp.u1JHG6CYmL/index.asc

I do not see the same failures when run manually.

[Po-Hsu Lin (cypressyew)]

Hello Tim,
thanks for the report, these are actually failing with something like:
    Downloading the image index
    ERROR: Invalid signature for /tmp/tmp.u1JHG6CYmL/index.asc

And the api_test.py is failing with this issue as well.

I will modify the bug title / description for this.

[Po-Hsu Lin (cypressyew)]

With a manual test this seems to be using the correct key server:
hkp://keyserver.ubuntu.com:80

But I can't figure out why this is just failing on these 4 instances; a1.medium, c6g.8xlarge, i3en.24xlarge, t2.small but pass with others in the AWS cloud for the moment. Might need to ask our lxc expert for this.

[Po-Hsu Lin (cypressyew)]

bah, it just passed with another retry.
I will give them another shot on our jenkins.

[Po-Hsu Lin (cypressyew)]

Retested on these failing instances and they all passed without any issue.

[Po-Hsu Lin (cypressyew)]

So this looks like a intermittent network (key server) issue, I will close this bug and remove the hint. Thanks.