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The dnsname plugin tries to use XDG_RUNTIME_DIR to store files.
podman run will have XDG_RUNTIME_DIR set and thus the cni plugin can use
it. The problem is that XDG_RUNTIME_DIR is unset for the conmon process
for rootful users. This causes issues since the cleanup process is spawned
by conmon and thus not have XDG_RUNTIME_DIR set to same value as podman run.
Because of it dnsname will not find the config files and cannot correctly
cleanup.
To fix this we should also unset XDG_RUNTIME_DIR for the cni plugins as
rootful.
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
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Remove ERROR: Error stutter from logrus messages also.
[ NO TESTS NEEDED] This is just code cleanup.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
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Update CNI so we can match wrapped errors. This should silence ENOENT
warnings when trying to read the cni conflist files.
Fixes #10926
Because CNI v1.0.0 contains breaking changes we have to change some
import paths. Also we cannot update the CNI version used for the
conflist files created by `podman network create` because this would
require at least containernetwork-plugins v1.0.1 and a updated dnsname
plugin. Because this will take a while until it lands in most distros
we should not use this version. So keep using v0.4.0 for now.
The update from checkpoint-restore/checkpointctl is also required to
make sure it no longer uses CNI to read the network status.
[NO TESTS NEEDED]
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
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Add support for the ipvlan cni plugin. This allows us to create,
inspect and list ipvlan networks correctly.
Fixes #10478
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
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Support setting the macvlan mode with `podman network create -d macvlan
--opt mode=bridge`. This will correctly set the specified macvlan mode
in the cni conflist file.
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
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Drivers should return the list of supported network drivers by this
plugin. This is useful for podman info.
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
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Make use of the new network interface in libpod.
This commit contains several breaking changes:
- podman network create only outputs the new network name and not file
path.
- podman network ls shows the network driver instead of the cni version
and plugins.
- podman network inspect outputs the new network struct and not the cni
conflist.
- The bindings and libpod api endpoints have been changed to use the new
network structure.
The container network status is stored in a new field in the state. The
status should be received with the new `c.getNetworkStatus`. This will
migrate the old status to the new format. Therefore old containers should
contine to work correctly in all cases even when network connect/
disconnect is used.
New features:
- podman network reload keeps the ip and mac for more than one network.
- podman container restore keeps the ip and mac for more than one
network.
- The network create compat endpoint can now use more than one ipam
config.
The man pages and the swagger doc are updated to reflect the latest
changes.
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
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When configs are loaded from disk we need to check if they contain a
ipv6 subnet and set ipv6 enables to true in this case.
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
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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>
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Check that the given subnet does not conflict with existing ones (other
configs or host interfaces).
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
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[NO TESTS NEEDED] Hopefully existing tests will find issues.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
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Implement a new network interface to abstract CNI from libpod. The
interface is implemented for the CNI backend but in the future we can
add more backends.
The code is structured in three new packages:
- `libpod/network/types`: contains the interface definition
and the necessary types for it.
- `libpod/network/cni` contains the interface implementation for the CNI
backend.
- `libpod/network/util` a set of utility functions related to
networking.
The CNI package uses ginkgo style unit tests. To test Setup/Teardown the
test must be run as root. Each test will run in their own namespace to
make the test independent from the host environment.
New features with the CNI backend:
- The default network will be created in memory if it does not exists on
disk.
- It can set more than one static IP per container network.
- Networks are loaded once from disk and only if this interface is
used, e.g. for commands such as `podman info` networks are not loaded.
This reduces unnecessary disk IO.
This commit only adds the interface it is not wired into libpod. This
requires a lot of breaking changes which will be done in a followup
commit.
Once this is integrated into libpod the current network code under
`libpod/network` should be removed. Also the dependency on OCICNI
should be dropped.
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
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