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default network: do not validate the used subnets

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The default network should not be validated against used subnets, we have to ensure
that this network can always be created even when a subnet is already used on the host.
This could happen if you run a container on this net, then the cni interface will be
created on the host and "block" this subnet from being used again.
Therefore the next podman command tries to create the default net again and it would
fail because it thinks the network is used on the host.

Signed-off-by: Paul Holzinger <pholzing@redhat.com>
This commit is contained in:
Paul Holzinger
2021-08-26 15:06:38 +02:00
parent aa7bc4e371
commit 24bec9a76b
3 changed files with 53 additions and 37 deletions
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4
libpod/network/cni/run_test.go
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@ -140,6 +140,10 @@ var _ = Describe("run CNI", func() {
Expect(res[defNet].DNSServerIPs).To(BeEmpty())
Expect(res[defNet].DNSSearchDomains).To(BeEmpty())
// reload the interface so the networks are reload from disk
libpodNet, err := getNetworkInterface(cniConfDir, false)
Expect(err).To(BeNil())
err = libpodNet.Teardown(netNSContainer.Path(), types.TeardownOptions(setupOpts))
Expect(err).To(BeNil())
})