One of the last limitations when migrating a container using Podman's
'podman container checkpoint --export=/path/to/archive.tar.gz' was
that it was necessary to manually handle changes to the container's root
file-system. The recommendation was to mount everything as --tmpfs where
the root file-system was changed.
This extends the checkpoint export functionality to also include all
changes to the root file-system in the checkpoint archive. The
checkpoint archive now includes a tarstream of the result from 'podman
diff'. This tarstream will be applied to the restored container before
restoring the container.
With this any container can now be migrated, even it there are changes
to the root file-system.
There was some discussion before implementing this to base the root
file-system migration on 'podman commit', but it seemed wrong to do
a 'podman commit' before the migration as that would change the parent
layer the restored container is referencing. Probably not really a
problem, but it would have meant that a migrated container will always
reference another storage top layer than it used to reference during
initial creation.
Signed-off-by: Adrian Reber <areber@redhat.com>
The newly added function GetDiffTarStream() mirrors the GetDiff()
function. It tries to get the correct layer ID from getLayerID()
and it filters out containerMounts from the tarstream. Thus the
behavior is the same as GetDiff(), but it returns a tarstream.
This also adds the function ApplyDiffTarStream() to apply the tarstream
generated by GetDiffTarStream().
These functions are targeted to support container migration with
root file-system changes.
Signed-off-by: Adrian Reber <areber@redhat.com>
During 'podman container checkpoint' the finished time was not set. This
resulted in a strange container status after checkpointing:
Exited (0) 292 years ago
During checkpointing FinishedTime is now set to time.now().
Signed-off-by: Adrian Reber <areber@redhat.com>
now that dbus authentication works fine from a user namespace (systemd
241 works fine), we can enable rootless healthchecks.
It uses "systemd-run --user" for creating the healthcheck timer and
communicates with the user instance of systemd listening at
$XDG_RUNTIME_DIR/systemd/private.
Closes: https://github.com/containers/libpod/issues/3523
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
an internal change in libpod will soon required the ability to lookup
the last container event using the continer name or id and the type of
event. this pr is in preperation for that need.
Signed-off-by: baude <bbaude@redhat.com>
The conmon pidfile is crucial for podman-generated systemd units, because
these units rely on it for determining service's main process ID.
With this change, every container has ConmonPidFile set (at least to
default value).
Signed-off-by: Danila Kiver <danila.kiver@mail.ru>
When specifying a podman command with a partial ID, container and pod
commands matches respectively only containers or pods IDs in the BoltDB.
Fixes: #3487
Signed-off-by: Marco Vedovati <mvedovati@suse.com>
This is needed for dual stack IPv6 support within CRI-O. Because the API
changed within OCICNI, we have to adapt the internal linux networking as
well.
Signed-off-by: Sascha Grunert <sgrunert@suse.com>
Specifically, we were needlessly doing a double lookup to find which config mounts were user volumes. Improve this by refactoring a bit of code from inspect
Signed-off-by: Peter Hunt <pehunt@redhat.com>
If we don't do this, we can leak locks on every failure, and that
is very, very bad - can render Podman unusable without a 'system
renumber' being run.
Signed-off-by: Matthew Heon <mheon@redhat.com>
some podman commands do not require the use of a container/image store.
in those cases, it is more effecient to not open the store, because that
results in having to also close the store which can be costly when the
system is under heavy write I/O loads.
Signed-off-by: baude <bbaude@redhat.com>
at least on Fedora 30 it creates the /run/user/UID directory for the
user logged in via ssh.
This needs to be done very early so that every other check when we
create the default configuration file will point to the correct
location.
Closes: https://github.com/containers/libpod/issues/3410
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
we had a regression where the rootless user tried to use the global
configuration file. We should not try to use the global configuration
when running in rootless but only cherry-pick some settings from there
when creating the file for the first time.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Conmon has moved out of cri-o and into it's own dedicated repository.
This commit updates configuration and definitions which referenced
the old cri-o based paths.
Signed-off-by: Chris Evich <cevich@redhat.com>
This fixes some of our handling of images which have no layers, i.e.,
those whose TopLayer is set to an empty value.
Signed-off-by: Nalin Dahyabhai <nalin@redhat.com>
