Bug 1153079
| Summary: | packstack with novanetwork configures flat_device=lo | ||||||
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| Product: | Red Hat OpenStack | Reporter: | Jaroslav Henner <jhenner> | ||||
| Component: | openstack-packstack | Assignee: | Martin Magr <mmagr> | ||||
| Status: | CLOSED WORKSFORME | QA Contact: | Jaroslav Henner <jhenner> | ||||
| Severity: | high | Docs Contact: | |||||
| Priority: | unspecified | ||||||
| Version: | 5.0 (RHEL 7) | CC: | aortega, apevec, derekh, ichavero, yeylon | ||||
| Target Milestone: | z6 | Keywords: | Automation, ZStream | ||||
| Target Release: | 5.0 (RHEL 7) | ||||||
| Hardware: | x86_64 | ||||||
| OS: | Linux | ||||||
| Whiteboard: | |||||||
| Fixed In Version: | Doc Type: | Bug Fix | |||||
| Doc Text: | Story Points: | --- | |||||
| Clone Of: | Environment: | ||||||
| Last Closed: | 2015-10-28 08:00:14 UTC | Type: | Bug | ||||
| Regression: | --- | Mount Type: | --- | ||||
| Documentation: | --- | CRM: | |||||
| Verified Versions: | Category: | --- | |||||
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |||||
| Cloudforms Team: | --- | Target Upstream Version: | |||||
| Embargoed: | |||||||
| Attachments: |
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I forgot to mention that we can workaround that by creating a dummy interface ip l add dummy0 type dummy which can be added to a bridge without an issue: brctl addif br100 dummy0 brctl show bridge name bridge id STP enabled interfaces br100 8000.6aebaa0f3eec no dummy0 This is probably just a TestBlocker, not a regression, as we seem to be deliberately setting
'CONFIG_NOVA_COMPUTE_PRIVIF': 'lo',
'CONFIG_NOVA_NETWORK_PRIVIF': 'lo',
So it probably is not a failure of packstack. Although it is worthy to check what is the packstack's default.
Not a test blocker any more. The following was enough to workaround:
set -e
cat > /etc/sysconfig/network-scripts/ifcfg-dummy0 <<EOF
DEVICE=dummy0
BOOTPROTO=none
ONBOOT=yes
TYPE=Ethernet
NM_CONTROLLED=no
EOF
echo "alias dummy0 dummy" > /etc/modprobe.d/dummy.conf
ifup dummy0
Related bug 1153128 ? I have tested for this problem and it does not appear anymore |
Created attachment 947241 [details] log Description of problem: I am not sure yet whether it is a "feature" of some new rhel 7 kernel, but now it is not possible to add loopback to the bridge. # brctl addif br100 lo can't add lo to bridge br100: Invalid argument packstack is configuring in nova.conf flat_device=lo which means nova will try to add it to the brige, it fails horribly, VMs will end-up in ERROR and even deletion of them seems to be impossible. Version-Release number of selected component (if applicable): openstack-nova-compute-2014.1.3-2.el7ost.noarch openstack-packstack-2014.1.1-0.41.dev1251.el7ost.noarch kernel-3.10.0-123.8.1.el7.x86_64 How reproducible: easily, often (: Steps to Reproduce: 1. deploy 2. nova boot 3. fail Actual results: 2014-10-15 10:54:19.312 32629 TRACE nova.openstack.common.threadgroup NovaException: Failed to add interface: can't add lo to bridge br100: Invalid argument Expected results: VM active Additional info: This is a regression but likely it is not caused by packstack and I think we can workaround it in a while in our automation, so setting the Regression, but not a blocker.