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Fixes: https://github.com/containers/podman/issues/11515
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
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Add first non localhost ipv4 of all host interfaces as destination
for host.contaners.internal for rootless containers.
Fixes: https://github.com/containers/podman/issues/12000
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
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The new network backend stores the networks in a map so the returned
order is not deterministic. Lets sort the network names alphabetically
to ensure a deterministic order.
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
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Followup to #12229, in which I added a podman unshare for
flake debugging. Turns out that doesn't work in podman-remote.
It was not caught because CI doesn't run podman-remote rootless.
Signed-off-by: Ed Santiago <santiago@redhat.com>
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When run as rootless the podman network reload command tries to reload
the rootlessport ports because the childIP could have changed.
However if the containers has no ports we should skip this instead of
printing a warning.
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
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Fix rootless networking with userns and ports
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A rootless container created with a custom userns and forwarded ports
did not work. I refactored the network setup to make the setup logic
more clear.
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
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- remove 'NO TESTS NEEDED' as a valid bypass string. Henceforth
only 'NO NEW TESTS NEEDED' will work.
- add a debugging aid for #11871, in which bodhi tests time out
in nslookup.
Signed-off-by: Ed Santiago <santiago@redhat.com>
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Volume test: add a sequence of stat()s to confirm that volumes
are mounted as a different device than root.
Network test: add debugging code for #11825 (dnsmasq inotify
failure in bodhi only).
Signed-off-by: Ed Santiago <santiago@redhat.com>
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Add --time flag to podman container rm
Add --time flag to podman pod rm
Add --time flag to podman volume rm
Add --time flag to podman network rm
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
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Fix day-one sloppiness: when I first wrote this framework
it compared strings using 'expr', not '=', to be more
forgiving of extra cruft in output. This was a bad decision.
It means that warnings or additional text are ignored:
is "all is ok, NOT!" "all is ok" <-- this would pass
Solution: tighten up the 'is' check. Use '=' (direct
compare) first. If it fails, look for wild cards ('*')
or character classes ('[') in the expect string. If
so, and only then, use 'expr'. And, thanks to a clever
suggestion from Luap99, include '(using expr)' in the
error message when we do so; this could make it easier
for a developer to understand a string mismatch.
This change exposes a lot of instances in which we weren't
doing proper comparisons. Fix those. Thankfully, there
weren't as many as I'd feared.
Also, and completely unrelated, add '-T' flag to bats
helper, for showing timing results. (I will open this
as a separate PR if requested. I too find it offensive
to jumble together unrelated commits.)
Signed-off-by: Ed Santiago <santiago@redhat.com>
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This matches what docker does. Also make sure the net aliases are also
shown when the container is stopped.
docker-compose uses this special alias entry to check if it is already
correctly connected to the network. [1]
Because we do not support static ips on network connect at the moment
calling disconnect && connect will loose the static ip.
Fixes #11748
[1] https://github.com/docker/compose/blob/0bea52b18dda3de8c28fcfb0c80cc08b8950645e/compose/service.py#L663-L667
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 a container is automatically restarted due its restart policy and
the container uses rootless cni networking with ports forwarded we have
to start a new rootlessport process since it exits with conmon.
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
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Picks a pseudorandom open port within a range. Refactor existing
instances of such code.
Signed-off-by: Ed Santiago <santiago@redhat.com>
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When a host uses systemd-resolved but not the resolved stub resolver the
following symlinks are created: `/etc/resolv.conf` ->
`/run/systemd/resolve/stub-resolv.conf` -> `/run/systemd/resolve/resolv.conf`.
Because the code uses filepath.EvalSymlinks we put the new resolv.conf
to `/run/systemd/resolve/resolv.conf` but the `/run/systemd/resolve/stub-resolv.conf`
link does not exists in the mount ns.
To fix this we will walk the symlinks manually until we reach the first
one under `/run` and use this for the resolv.conf file destination.
This fixes a regression which was introduced in e73d4829900c.
Fixes #11222
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
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The rootlessport forwarder requires a child IP to be set. This must be a
valid ip in the container network namespace. The problem is that after a
network disconnect and connect the eth0 ip changed. Therefore the
packages are dropped since the source ip does no longer exists in the
netns.
One solution is to set the child IP to 127.0.0.1, however this is a
security problem. [1]
To fix this we have to recreate the ports after network connect and
disconnect. To make this work the rootlessport process exposes a socket
where podman network connect/disconnect connect to and send to new child
IP to rootlessport. The rootlessport process will remove all ports and
recreate them with the new correct child IP.
Also bump rootlesskit to v0.14.3 to fix a race with RemovePort().
Fixes #10052
[1] https://nvd.nist.gov/vuln/detail/CVE-2021-20199
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
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Wow did I screw up. #10982 introduced (at my suggestion) a
new wait_for_port() helper, with the goal of eliminating a
race condition. It didn't work.
First: wait_for_port() tests by connecting to the port, which
is a Bad Idea when you have a one-shot server that exits upon
the first connection closing. We should've caught that, but:
Second: I wrote wait_for_port() for a non-BATS test framework,
and used the conventional file descriptor 3. BATS uses fd3
for internal control. Overriding that made the test silently
just disappear, no "not ok" message, no warnings, nothing
except vanishing into the ether.
Third: this was caught by my log-colorizer script, which
loudly yelled "WARNING: expected 234" (tests) at the
bottom of the log. Unfortunately, since this wasn't
my PR, I didn't actually look at the test logs.
Solution: we can't use wait_for_port() in the network port
test. Use wait_for_output() instead, triggering on the
'listening' message emitted by netcat in the container.
Also: fix wait_for_port() to use fd5 instead of 3. Although
no code currently uses wait_for_port() as of this PR, it's
a useful helper that we may want to keep.
Signed-off-by: Ed Santiago <santiago@redhat.com>
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It was observed during periodic testing, this test can fail due to the
container process being not fully running and listening on the expected
port:
```
[+1069s] not ok 220 podman networking: port with --userns=keep-id
[+1069s] # (in test file test/system/500-networking.bats, line 144)
[+1069s] # `echo "$teststring" | nc 127.0.0.1 $myport' failed
[+1069s] # # /var/tmp/go/src/github.com/containers/podman/bin/podman rm
--all --force
[+1069s] # # /var/tmp/go/src/github.com/containers/podman/bin/podman ps
--all --external --format {{.ID}} {{.Names}}
[+1069s] # # /var/tmp/go/src/github.com/containers/podman/bin/podman
images --all --format {{.Repository}}:{{.Tag}} {{.ID}}
[+1069s] # quay.io/libpod/testimage:20210610 9f9ec7f2fdef
[+1069s] # # /var/tmp/go/src/github.com/containers/podman/bin/podman run
-d --userns=keep-id -p 127.0.0.1:54322:54322
quay.io/libpod/testimage:20210610 nc -l -n -v -p 54322
[+1069s] #
252c562c9a3c96892d867d1d72fb52b2efdfe62855ebedbccd2d281c472c2988
[+1069s] # Ncat: No route to host.
```
Fix this by using a new `wait_for_port()` function (thanks @edsantiago)
before attempting to communicate with the service.
Signed-off-by: Chris Evich <cevich@redhat.com>
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On EOF of STDIN, we need to perform a one-sided close of the
attach connection on the client side, to ensure that STDIN
finishing will also cause the exec session to terminate, instead
of hang.
Fixes #7360
Signed-off-by: Matthew Heon <mheon@redhat.com>
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The container name should have the slirp interface ip set in /etc/hosts
and not the gateway ip. Commit c8dfcce6db0a introduced this regression.
Fixes https://bugzilla.redhat.com/show_bug.cgi?id=1972073
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
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The containers /etc/resolv.conf allways preserved the ipv6 nameserves
from the host even when the container did not supported ipv6. Check
if the cni result contains an ipv6 address or slirp4netns has ipv6
support enabled and only add the ipv6 nameservers when this is the case.
The test needs to have an ipv6 nameserver in the hosts /etc/hosts but we
should never mess with this file on the host. Therefore the test is
skipped when no ipv6 is detected.
Fixes #10158
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
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selinux-policy-34.9-1.fc34 breaks a behavior we've relied on
since (at least) January 2020:
- Revert "Add permission open to files_read_inherited_tmp_files()
interface"
That's probably the correct thing to do, but it breaks our
existing tests. Solution: add ':Z' where needed.
Tested on Ed's laptop, which has the offending selinux-policy
as of 2021-05-31. Tests pass root and rootless. (I mention
this because tests will obviously pass in CI, which has a
much older selinux-policy).
Also: add a 'podman rmi' for cleanup in one test, to avoid
noise in test logs.
Fixes: #10522
Signed-off-by: Ed Santiago <santiago@redhat.com>
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Add host.containers.internal entry into container's etc/hosts
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This change adds the entry `host.containers.internal` to the `/etc/hosts`
file within a new containers filesystem. The ip address is determined by
the containers networking configuration and points to the gateway address
for the containers networking namespace.
Closes #5651
Signed-off-by: Baron Lenardson <lenardson.baron@gmail.com>
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Allow podman network reload to be run as rootless user. While it is
unlikely that the iptable rules are flushed inside the rootless cni
namespace, it could still happen. Also fix podman network reload --all
to ignore errors when a container does not have the bridge network mode,
e.g. slirp4netns.
Signed-off-by: Paul Holzinger <paul.holzinger@web.de>
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The added test in 30544f225e73 is flaking. Podman inspect is always
working so we have to check the pid instead.
Signed-off-by: Paul Holzinger <paul.holzinger@web.de>
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When a container is automatically restarted due its restart policy and
the container used the slirp4netns netmode, the slirp4netns process
died. This caused the container to lose network connectivity.
To fix this we have to start a new slirp4netns process.
Fixes #8047
Signed-off-by: Paul Holzinger <paul.holzinger@web.de>
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Our current #1 flake; this is a simple one: we can't run 'logs'
on a container run with '-d --rm'.
Signed-off-by: Ed Santiago <santiago@redhat.com>
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Basically, add 'podman wait' before 'podman rm'. See if this
fixes gating tests run on ppc64le (possibly very very slow hosts)
Signed-off-by: Ed Santiago <santiago@redhat.com>
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The source ip for the rootlesskit port forwarder was hardcoded to the
standard slirp4netns ip. This is incorrect since users can change the
subnet used by slirp4netns with `--network slirp4netns:cidr=10.5.0.0/24`.
The container interface ip is always the .100 in the subnet. Only when
the rootlesskit port forwarder child ip matches the container interface
ip the port forwarding will work.
Fixes #9828
Signed-off-by: Paul Holzinger <paul.holzinger@web.de>
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Currently we have only podman images list --noheading.
This PR Adds this option to volumes, containers, pods, networks,
machines, and secrets.
Fixes: https://github.com/containers/podman/issues/10065
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
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The CNI plugins need access to iptables in $PATH. On debian /usr/sbin
is not added to $PATH for rootless users. This will break rootless
cni completely. To prevent breaking existing users add /usr/sbin to
$PATH in podman if needed.
Signed-off-by: Paul Holzinger <paul.holzinger@web.de>
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Instead of creating an extra container create a network and mount
namespace inside the podman user namespace. This ns is used to
for rootless cni operations.
This helps to align the rootless and rootful network code path.
If we run as rootless we just have to set up a extra net ns and
initialize slirp4netns in it. The ocicni lib will be called in
that net ns.
This design allows allows easier maintenance, no extra container
with pause processes, support for rootless cni with --uidmap
and possibly more.
The biggest problem is backwards compatibility. I don't think
live migration can be possible. If the user reboots or restart
all cni containers everything should work as expected again.
The user is left with the rootless-cni-infa container and image
but this can safely be removed.
To make the existing cni configs work we need execute the cni plugins
in a extra mount namespace. This ensures that we can safely mount over
/run and /var which have to be writeable for the cni plugins without
removing access to these files by the main podman process. One caveat
is that we need to keep the netns files at `XDG_RUNTIME_DIR/netns`
accessible.
`XDG_RUNTIME_DIR/rootless-cni/{run,var}` will be mounted to `/{run,var}`.
To ensure that we keep the netns directory we bind mount this relative
to the new root location, e.g. XDG_RUNTIME_DIR/rootless-cni/run/user/1000/netns
before we mount the run directory. The run directory is mounted recursive,
this makes the netns directory at the same path accessible as before.
This also allows iptables-legacy to work because /run/xtables.lock is
now writeable.
Signed-off-by: Paul Holzinger <paul.holzinger@web.de>
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Checking for 'skip.*[0-9]{4,5}', and checking status on said
issues, finds several that have been closed. Let's see if
they're really fixed.
Signed-off-by: Ed Santiago <santiago@redhat.com>
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if a CNI network is added to the container, use the IP address in that
network instead of hard-coding the slirp4netns default.
commit 5e65f0ba30f3fca73f8c207825632afef08378c1 introduced this
regression.
Closes: https://github.com/containers/podman/issues/9065
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
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set the source IP to the slirp4netns address instead of 127.0.0.1 when
using rootlesskit.
Closes: https://github.com/containers/podman/issues/5138
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
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This adds a new command, 'podman network reload', to reload the
networks of existing containers, forcing recreation of firewall
rules after e.g. `firewall-cmd --reload` wipes them out.
Under the hood, this works by calling CNI to tear down the
existing network, then recreate it using identical settings. We
request that CNI preserve the old IP and MAC address in most
cases (where the container only had 1 IP/MAC), but there will be
some downtime inherent to the teardown/bring-up approach. The
architecture of CNI doesn't really make doing this without
downtime easy (or maybe even possible...).
At present, this only works for root Podman, and only locally.
I don't think there is much of a point to adding remote support
(this is very much a local debugging command), but I think adding
rootless support (to kill/recreate slirp4netns) could be
valuable.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
Signed-off-by: Paul Holzinger <paul.holzinger@web.de>
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- run --userns=keep-id: confirm that $HOME gets set (#8013)
- inspect: confirm that JSON output is a sane number of
lines (10 or more), not an unreadable one-liner (#8011
and #8021). Do so with image, pod, network, volume
because the code paths might be different.
- cgroups: confirm that 'run' preserves cgroup manager (#7970)
- sdnotify: reenable tests, and hope CI doesn't hang. This
test was disabled on August 18 because CI jobs were hanging
and timing out. My suspicion was that it was #7316, which
in turn seems to have hinged on conmon #182. The latter
was merged on Sep 16, so let's cross our fingers and see
what happens.
Also: remove inaccurate warning from a networking test.
And, wow, fix is_cgroupsv2(), it has never actually worked.
Signed-off-by: Ed Santiago <santiago@redhat.com>
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At the top of each generated page, add a Synopsis table with:
PR number/name, and link to github
Author name(s)
Test name (fedora/ubuntu, rootless, etc)
Cirrus build ID (usually uninteresting)
Cirrus task ID (usu. important), with link to Cirrus
The value of $SPECIALMODE
This is all we can get from the Cirrus environment in
which logformatter runs; we can't get things like
cgroup manager or username that the test runs under.
Note that the table is at the top, which is usually
unseen because we autoscroll to the bottom on
page load. I tentatively think that top is a more
natural place for this info than bottom, but am
willing to listen to arguments against.
Also, one minor tweak: highlight podman commands in
the BATS output. The idea is to make it easier for the eye
to spot those, then copy/paste them to find a reproducer.
And, sigh, disable the new 'podman network create'
system test. It is flaking much too much.
Signed-off-by: Ed Santiago <santiago@redhat.com>
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In podman containers rm and podman images rm, the commands
exit with error code 1 if the object does not exists.
This PR implements similar functionality to volumes, networks, and Pods.
Similarly if volumes or Networks are in use by other containers, and return
exit code 2.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
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- podman network create: new test
- podman pull by-sha + podman images -a (#7651)
- podman image mount: new test
- podman pod: --infra-image and --infra-command (#7167)
For convenience and robustness, build a new testimage
containing a custom file /home/podman/testimage-id
with contents YYYYMMDD (same as image tag). The
image-mount test checks that this file exists and
has the desired content. New testimage also includes
a dummy 'pause' executable, for testing pod infra.
Updates from testimage:20200902 to :20200917
Signed-off-by: Ed Santiago <santiago@redhat.com>
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CI and system tests currently pull some images from docker.io.
Eliminate that, by:
- building a custom image containing much of what we need
for testing; and
- copying other needed images to quay.io
(Reason: effective 2020-11-01 docker.io will limit the
number of image pulls).
The principal change is to create a new quay.io/libpod/testimage,
using the new test/system/build-testimage script, instead of
relying on quay.io/libpod/alpine_labels. We also switch to
using a hardcoded :YYYYMMDD tag, instead of :latest, in an
attempt to futureproof our CI. This image includes 'httpd'
from busybox-extras, which we use in our networking test
(previously we had to pull and run busybox from docker.io).
The testimage can and should be extended as needed for future
tests, e.g. adding test file content or other useful tools.
For the '--pull' tests which require actually pulling from
the registry, I've created an image with the same name but
tagged :00000000 so it will never be pulled by default.
Since this image is only used minimally, it's just busybox.
Unfortunately there remain two cases we cannot solve in
this tiny alpine-based image:
1) docker registry
2) systemd
For those, I've (manually) run:
podman pull [ docker.io/library/registry:2.7 | registry.fedoraproject.org/fedora:31 ]
podman tag !$ quay.io/...
podman push !$
...and amended the calling tests accordingly.
I've tried to make the the smallest reasonable diff, not the
smallest possible one. I hope it's a reasonable tradeoff.
Signed-off-by: Ed Santiago <santiago@redhat.com>
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info, images, run, networking tests: remove some skip_if_remote()s
that were added in the varlink days. All of these tests now seem
to work with APIv2.
help test: check that first output line from 'podman --help'
is the program description (regression check for #7273).
load test: clean up stray images, rewrite test to make it conform
to existing convention. In the process, discover and file #7337
exec test (and networking): file #7360, and add FIXME comment
to skip()s suggesting evaluating those tests once that is fixed.
pod test: now that #6328 is fixed, use 'podman pod inspect --format'
instead of relying on jq
Various other tests: add an explanation of why test is disabled
so we can more easily distinguish "this will never be meaningful
under remote" vs "hey, doesn't work for now, but maybe someday".
Signed-off-by: Ed Santiago <santiago@redhat.com>
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Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
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- exec: add test for #5046, in which conmon swallowed chars
on a large byte transfer
- pod: add 'pod exists' tests, both positive and negative;
consolidate tests; add '--label', and check in 'pod inspect'
add 'pod ps' tests
- networking: add test for #5466, in which detached run
with --userns=keep-id would not forward a port
Signed-off-by: Ed Santiago <santiago@redhat.com>
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1) Help message for podman port was missing [PORT]
2) Add test for 'podman port'. And, actually, an entire
networking test that I'd written some weeks ago but
apparently didn't 'git add'.
Signed-off-by: Ed Santiago <santiago@redhat.com>
Signed-off-by: Brent Baude <bbaude@redhat.com>
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