All IDs in libpod are stored as a full container ID. We can get a
container by full ID faster with GetContainer (which directly
retrieves) than LookupContainer (which finds a match, then
retrieves). No reason to use Lookup when we have full IDs present
and available.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
The SELinux label for the CRIU dump.log was explicitly set in Podman.
The label for the restore.log, however, not. This just moves the code
to label the log file into a function and calls that functions during
checkpoint and restore.
Signed-off-by: Adrian Reber <areber@redhat.com>
The 'docker commit' will never include a container's volumes when
committing, without an explicit request through '--change'.
Podman, however, defaulted to including user volumes as image
volumes.
Make this behavior depend on a new flag, '--include-volumes',
and make the default behavior match Docker.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
when we run in a user namespace, there are cases where we have not
enough privileges to mount a fresh sysfs on /sys. To circumvent this
limitation, we rbind /sys from the host. This carries inside of the
container also some mounts we probably don't want to. We are also
limited by the kernel to use rbind instead of bind, as allowing a bind
would uncover paths that were not previously visible.
This is a slimmed down version of the intermediate mount namespace
logic we had before, where we only set /sys to slave, so the umounts
done to the storage by the cleanup process are propagated back to the
host. We also don't setup any new directory, so there is no
additional cleanup to do.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
create immediately a namespace if we need a refresh. This is
necessary to access the rootless storage.
Closes: https://github.com/containers/libpod/issues/2894
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Don't sort OCI hooks using the locale collation order; it does not
make sense for the same system-wide directory to be interpreted differently
depending on the user's LC_COLLATE setting, and the language-specific
collation order can even change over time.
Besides, the current collation order determination code has never worked
with the most common LC_COLLATE values like en_US.UTF-8.
Ideally, we would like to just order based on Unicode code points
to be reliably stable, but the existing implementation is case-insensitive,
so we are forced to rely on the unicode case mapping tables at least.
(This gives up on canonicalization and width-insensitivity, potentially
breaking users who rely on these previously documented properties.)
Signed-off-by: Miloslav Trmač <mitr@redhat.com>
* refactor command output to use one function
* Add new worker pool parallel operations
* Implement podman-remote umount
* Refactored podman wait to use printCmdOutput()
Signed-off-by: Jhon Honce <jhonce@redhat.com>
when deleting a commited image, the path for deletion has an early exit
and the image remove event was not being triggered.
Signed-off-by: baude <bbaude@redhat.com>
The Commit test is blatantly wrong and testing buggy behavior. We
should be commiting the destination, if anything - and more
likely nothing at all.
When force-removing volumes, don't remove the volumes of
containers we need to remove. This can lead to a chicken and the
egg problem where the container removes the volume before we can.
When we re-add volume locks this could lead to deadlocks. I don't
really want to deal with this, and this doesn't seem a
particularly harmful quirk, so we'll let this slide until we get
a bug report.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
We were never using it. It's actually a potentially quite sizable
field (very expensive to decode an array of structs!). Removing
it should do no harm.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
The flag should be substantially more durable, and no longer
relies on the create artifact.
This should allow it to properly handle our new named volume
implementation.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
Now that named volumes must be explicitly enumerated rather than
passed in with all other volumes, we need to split normal and
named volumes up before passing them into libpod. This PR does
this.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
This swaps the previous handling (parse all volume mounts on the
container and look for ones that might refer to named volumes)
for the new, explicit named volume lists stored per-container.
It also deprecates force-removing volumes that are in use. I
don't know how we want to handle this yet, but leaving containers
that depend on a volume that no longer exists is definitely not
correct.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
When generating headers for search, we unconditionally
access element 0 of an array, and I saw this segfault in our CI.
There's no reason we have to do this, we're just going through it
to get field names with reflect, so just make a new copy of the
struct in question.
Also, move this code, which is only for CLI display, into
cmd/podman from libpod/image.
Signed-off-by: Matthew Heon <mheon@redhat.com>
simplify the rootless implementation to use a single user namespace
for all the running containers.
This makes the rootless implementation behave more like root Podman,
where each container is created in the host environment.
There are multiple advantages to it: 1) much simpler implementation as
there is only one namespace to join. 2) we can join namespaces owned
by different containers. 3) commands like ps won't be limited to what
container they can access as previously we either had access to the
storage from a new namespace or access to /proc when running from the
host. 4) rootless varlink works. 5) there are only two ways to enter
in a namespace, either by creating a new one if no containers are
running or joining the existing one from any container.
Containers created by older Podman versions must be restarted.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
in the few places where we care about skipping the storage
initialization, we can simply use the process effective UID, instead
of relying on a global boolean flag.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Docker's upstream name validation regex has two major differences
from ours that we pick up in this PR.
The first requires that the first character of a name is a letter
or number, not a special character.
The second allows periods in names.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
We have an issue in the current implementation where the cleanup
process is not able to umount the storage as it is running in a
separate namespace.
Simplify the implementation for user namespaces by not using an
intermediate mount namespace. For doing it, we need to relax the
permissions on the parent directories and allow browsing
them. Containers that are running without a user namespace, will still
maintain mode 0700 on their directory.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Currently in rootless containers, we end up not using the blob cache.
We also don't store the blob cache based on the users specified graph
storage. This change will cause the cache directory to be stored with
the rest of the containe images.
While doing this patch, I found that we had duplicated GetSystemContext in
two places in libpod. I cleaned this up.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
We accidentally patched this out trying to enable ns:/path/to/ns
This should restore the ability to configure nondefault CNI
networks with Podman, by ensuring that they request creation of a
network namespace.
Completely remove the WithNetNS() call when we do use an explicit
namespace from a path. We use that call to indicate that a netns
is going to be created - there should not be any question about
whether it actually does.
Fixes#2795
Signed-off-by: Matthew Heon <mheon@redhat.com>
from _LIBPOD to _CONTAINERS. The same change was done in buildah
unshare.
This is necessary for podman to detect we are running in a rootless
environment and work properly from a "buildah unshare" session.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
