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Joachim Wiberg
ddc57ed6ae
When a veth pair has one end in a container and the other in the host
namespace, removing it failed: the container end's teardown deleted the
whole pair, so the host end's own delete then failed ("Cannot find
device") and aborted the teardown, leaving the interface behind.
The host-namespace delete added for the both-ends-in-container case was
emitted for every container veth end. Restrict it to the primary end,
which for a host/container pair is the host end that already deletes the
pair itself.
Extend the container veth tests to remove the pair and verify it is gone,
covering both the single-end (regression) and both-ends teardown paths.
Fixes: #1546
Signed-off-by: Joachim Wiberg <troglobit@gmail.com>
=== Container with VETH Pair
ifdef::topdoc[:imagesdir: {topdoc}../../test/case/containers/veth]
==== Description
Verify connectivity with a simple web server container from behind a
regular bridge, a VETH pair connects the container to the bridge.
....
.-------------. .---------------. .--------.
| | mgmt |---------| mgmt | | | web- |
| host | data |---------| data | target | | server |
'-------------' '---------------' '--------'
| /
br0 /
`----- veth0 -----'
....
==== Topology
image::topology.svg[Container with VETH Pair topology, align=center, scaledwidth=75%]
==== Sequence
. Set up topology and attach to target DUT
. Create 'web-br0-veth' container from bundled OCI image
. Verify container 'web-br0-veth' has started
. Verify basic DUT connectivity, host:data can ping DUT 10.0.0.2
. Verify container 'web-br0-veth' is reachable on http://10.0.0.2:91
. Remove container and VETH pair, verify clean teardown