Michele Baldessari
871c1a3032
Even though the number of user lookups have been reduced from two to one
via https://github.com/containers/libpod/pull/1978, we still see the
following error from time to time:
time="2019-11-22T19:19:33Z" level=debug msg="ExitCode msg: \"unable to find user root: no matching entries in passwd file\""
time="2019-11-22T19:19:33Z" level=error msg="unable to find user root: no matching entries in passwd file"
The TLDR; is that podman/docker, when passed a --user=<name> parameter,
will parse the /etc/passwd file inside the container and detect the
uid/gid to switch to. The problem seems to be that sometimes this
/etc/passwd is either read as empty or non-existant when we try and
parse it (the root-cause of which is the real underlying bug).
Since it seems that root-causing this will take a rather large amount of
time, we can just pass the UID directly which will not fail when
the parsing code cannot find the specified user in /etc/passwd, as it
simply uses the provided UID:
https://github.com/containers/libpod/blob/master/vendor/github.com/opencontainers/runc/libcontainer/user/user.go#L333
Tested this by running a reproducer on three machines for a total
of ~800 runs and had 0 occurrences of this error. Previously I could
reproduce this issue in about 30 to 60 runs at most.
Related rhbz: 1776766
Related-Bug: #1803544
NB: Cherry-pick not 100% clean
Change-Id: Ia9860107c35e543a05775596076873ea950b7400
(cherry picked from commit 393e96b5b9)
Team and repository tags
tripleo-heat-templates
Heat templates to deploy OpenStack using OpenStack.
- Free software: Apache License (2.0)
- Documentation: https://docs.openstack.org/tripleo-docs/latest/
- Source: https://opendev.org/openstack/tripleo-heat-templates
- Bugs: https://bugs.launchpad.net/tripleo
- Release notes: https://docs.openstack.org/releasenotes/tripleo-heat-templates/
Features
The ability to deploy a multi-node, role based OpenStack deployment using OpenStack Heat. Notable features include:
- Choice of deployment/configuration tooling: puppet, (soon) docker
- Role based deployment: roles for the controller, compute, ceph, swift, and cinder storage
- physical network configuration: support for isolated networks, bonding, and standard ctlplane networking
Directories
A description of the directory layout in TripleO Heat Templates.
- environments: contains heat environment files that can be used with -e
on the command like to enable features, etc.
- extraconfig: templates used to enable 'extra' functionality. Includes
functionality for distro specific registration and upgrades.
- firstboot: example first_boot scripts that can be used when initially
creating instances.
- network: heat templates to help create isolated networks and ports
- puppet: templates mostly driven by configuration with puppet. To use these
templates you can use the overcloud-resource-registry-puppet.yaml.
- validation-scripts: validation scripts useful to all deployment
configurations
- roles: example roles that can be used with the tripleoclient to generate
a roles_data.yaml for a deployment See the roles/README.rst for additional details.
Service testing matrix
The configuration for the CI scenarios will be defined in tripleo-heat-templates/ci/ and should be executed according to the following table:
| scn000 | scn001 | scn002 | scn003 | scn004 | scn006 | scn007 | scn009 | scn010 | non-ha | ovh-ha | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| keystone |
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| glance |
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| heat |
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| ironic |
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| mysql |
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| neutron |
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| ovn |
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| neutron-l2gw |
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| om-rpc | rabbit | rabbit |
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rabbit | rabbit | rabbit | rabbit | rabbit | rabbit | ||
| om-notify | rabbit | rabbit | rabbit | rabbit | rabbit | rabbit | rabbit | rabbit | rabbit | ||
| redis |
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| haproxy |
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| memcached |
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| pacemaker |
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| nova |
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ironic |
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| ntp |
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| snmp |
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| timezone |
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| sahara |
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| mistral |
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| swift |
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| aodh |
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| ceilometer |
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| gnocchi |
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| barbican |
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| zaqar |
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| ec2api |
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| tacker |
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| cephmds |
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| manila |
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| collectd |
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| designate |
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| octavia |
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