CRIU's pre-copy migration support relies on the soft dirty page tracking
in the Linux kernel:
https://www.kernel.org/doc/Documentation/vm/soft-dirty.txt
This functionality is not implemented for all architectures and it can
also be turned off in the kernel.
CRIU can check if the combination of architecture/kernel/CRIU supports
the soft dirty page tracking and exports this feature checking
functionality in go-criu.
This commit adds an early check if the user selects pre-copy
checkpointing to error out if the system does not support it.
Signed-off-by: Adrian Reber <areber@redhat.com>
added support for a new flag --passwd which, when false prohibits podman from creating entries in
/etc/passwd and /etc/groups allowing users to modify those files in the container entrypoint
resolves#11805
Signed-off-by: cdoern <cdoern@redhat.com>
At some places the checkpoint restore man pages were using the markdown
modifier `**` inside `*..*`. This does not seem to work as intended and
results in markdown modifiers present in the final man page. Switching
to `__` inside of `*..*` seems to fix this.
Signed-off-by: Adrian Reber <areber@redhat.com>
Checkpoint a container using systemd as entrypoint will probably result
in an error as CRIU cannot handle all the resources latest systemd uses.
This updates the checkpoint man page with this information.
Signed-off-by: Adrian Reber <areber@redhat.com>
Added an option to podman machine init to declare the timezone of the
resulting machine. the default is to use the value of the host name or
else a given timezone name like America/Chicago.
Fixes: #11895
Signed-off-by: Brent Baude <bbaude@redhat.com>
[NO NEW TESTS NEEDED]
Signed-off-by: Brent Baude <bbaude@redhat.com>
We currently do not show --external containers when the user specifies
it, unless they also specify the --all flag. This has led to confusion.
I see no reason not to list them without the --all flag if the user
specifies the option.
Fixes: https://github.com/containers/podman/issues/12353
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Rework the --network parse logic to support multiple networks with
specific network configuration settings.
--network can now be set multiple times. For bridge network mode the
following options have been added:
- **alias=name**: Add network-scoped alias for the container.
- **ip=IPv4**: Specify a static ipv4 address for this container.
- **ip=IPv6**: Specify a static ipv6 address for this container.
- **mac=MAC**: Specify a static mac address address for this container.
- **interface_name**: Specify a name for the created network interface inside the container.
So now you can set --network bridge:ip=10.88.0.10,mac=44:33:22:11:00:99
for the default bridge network as well as for network names.
This is better than using --ip because we can set the ip per network
without any confusion which network the ip address should be assigned
to.
The --ip, --mac-address and --network-alias options are still supported
but --ip or --mac-address can only be set when only one network is set.
This limitation already existed previously.
The ability to specify a custom network interface name is new
Fixes#11534
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
Network connect now supports setting a static ipv4, ipv6 and mac address
for the container network. The options are added to the cli and api.
Fixes#9883
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
- Don't pointlessly repeat the names
- Improve documentation of the formats
- Use a table, per MANPAGE_SYNTAX.md
Signed-off-by: Miloslav Trmač <mitr@redhat.com>
rootlessNetNS.Cleanup() has an issue with how it detects if cleanup
is needed, reading the container state is not good ebough because
containers are first stopped and than cleanup will be called. So at one
time two containers could wait for cleanup but the second one will fail
because the first one triggered already the cleanup thus making rootless
netns unavailable for the second container resulting in an teardown
error. Instead of checking the container state we need to check the
netns state.
Secondly, podman unshare --rootless-netns should not do the cleanup.
This causes more issues than it is worth fixing. Users also might want
to use this to setup the namespace in a special way. If unshare also
cleans this up right away we cannot do this.
[NO NEW TESTS NEEDED]
Fixes#12459
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
Replace `multi-user.target` with `default.target` across the code base.
It seems like the multi-user one is not available for (rootless) users
on F35 anymore is causing issues in all kinds of ways, for instance,
enabling the podman.service or generated systemd units.
Fixes: #12438
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
Add a new flag to set the start timeout for a generated systemd unit.
To make naming consistent, add a new --stop-timeout flag as well and let
the previous --time map to it.
Fixes: #11618
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
Add a note to the generated kube yaml if we detect a
volume is being mounted. The note lets the user know
what needs to be done to avoid permission denied error
when trying to access the volume for an unprivileged
container.
Add the same note to the man pages.
NO NEW TESTS NEEDED
Signed-off-by: Urvashi Mohnani <umohnani@redhat.com>
Add a note to show how to workaround the `--tz` option
being ignored in the run command.
Related to: https://bugzilla.redhat.com/show_bug.cgi?id=1984251
Signed-off-by: TomSweeneyRedHat <tsweeney@redhat.com>
There are at least two runtimes that support checkpoint and restore:
runc and crun. Although the checkpoints created by these are almost
compatible, it is not (yet) possible to restore a checkpoint created
with one runtime with the other runtime. To make checkpoint/restore
usage more comfortable this adds code to look into the checkpoint
archive during restore and to set the runtime to the one used during
checkpointing.
This also adds a check, if the user explicitly sets a runtime during
restore, that the runtime is also the same as used during checkpointing.
If a different runtime is selected than the one used during
checkpointing the restore will fail early.
If runc and crun will create compatible checkpoints in the future the
check can be changed to treat crun and runc as compatible
checkpoint/restore runtimes.
Signed-off-by: Adrian Reber <areber@redhat.com>
There is a problem with creating and storing the exit command when the
container was created. It only contains the options the container was
created with but NOT the options the container is started with. One
example would be a CNI network config. If I start a container once, then
change the cni config dir with `--cni-config-dir` ans start it a second
time it will start successfully. However the exit command still contains
the wrong `--cni-config-dir` because it was not updated.
To fix this we do not want to store the exit command at all. Instead we
create it every time the conmon process for the container is startet.
This guarantees us that the container cleanup process is startet with
the correct settings.
[NO NEW TESTS NEEDED]
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
CRIU supports checkpoint/restore of file locks. This feature is
required to checkpoint/restore containers running applications
such as MySQL.
Signed-off-by: Radostin Stoyanov <radostin@redhat.com>
pass down the "idmap" mount option to the OCI runtime.
Needs: https://github.com/containers/crun/pull/780
Closes: https://github.com/containers/podman/issues/12154
[NO NEW TESTS NEEDED] there is no crun version yet that support the
new feature.
Test case (must run as root):
podman run --rm -v foo:/foo alpine touch /foo/bar
podman run --uidmap 0:1:1000 --rm -v foo:/foo:idmap alpine ls -l /foo
total 0
-rw-r--r-- 1 root root 0 Nov 15 14:01 bar
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
* Support `checkpoint --pre-checkpoint`
* Support `checkpoint --with-previous`
* Disable `restore --import-previous` for the remote client since we had
to send two files which in turn would require to tar them up and hence
be a breaking change. Podman 4.0 would be the chance and I hope we'll
find time before that to remote-restore prettier.
Note that I did not run over swagger yet to check whether all parameters
are actually documented due to time constraints.
Fixes: #12334
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
Podman adds a few environment variables by default, and
currently there is no way to get rid of them from your container.
This option will allow you to specify which defaults you don't
want.
--unsetenv-all will remove all default environment variables.
Default environment variables can come from podman builtin,
containers.conf or from the container image.
Fixes: https://github.com/containers/podman/issues/11836
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
This commit updates the man pages for checkpoint and restore to describe
the '--print-stats' parameter.
Signed-off-by: Adrian Reber <areber@redhat.com>
Fixed syntax so that podman image scp transfer works with no user specified.
This command can only be executed as root so to obtain the default user, I searched for
the SUDO_USER environmental variable. If that is not found, we error out and inform the user
to set this variable and make sure they are running as root
Signed-off-by: cdoern <cdoern@redhat.com>
Signed-off-by: cdoern <cbdoer23@g.holycross.edu>
Add new CI check to confirm that links and references
in SEE ALSO sections are properly formatted and that
links are valid (at least in theory: we do no actual
URL fetching to test for 404).
The check is piggybacked into existing xref-helpmsgs-manpages
script. It could conceivably be more elegant to write a
separate tool for this purpose, but I don't wish to duplicate
the logic for finding and reading markdown files.
Script identified various problems, which I fix in this PR:
. missing '**' (asterisks) around some references, or '**'
in the wrong place.
. links pointing to github.com/.../tree/ instead of /blob/
(github redirects those automatically, but I like
consistency)
. a few copy-paste errors, e.g. subgid linking to subuid.
Signed-off-by: Ed Santiago <santiago@redhat.com>
Support downloading files, for instance via
`podman load -i server.com/image.tar`. The specified URL is downloaded
in the frontend and stored as a temp file that gets passed down to the
backend.
Also vendor in c/common@main to use the new `pkg/download`.
Fixes: #11970
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
Adrian Reber
OpenShift Merge Robot
cdoern
Brent Baude
Daniel J Walsh
Paul Holzinger
Jakub Guzik
Ondra Machacek
Miloslav Trmač
Giuseppe Scrivano
Valentin Rothberg
Jakub Dzon
Urvashi Mohnani
TomSweeneyRedHat
Radostin Stoyanov
cdoern
José Guilherme Vanz
Ed Santiago