Commit Graph

13 Commits

Author SHA1 Message Date
Matt Heon 72f1617fac Bump Go module to v5
Moving from Go module v4 to v5 prepares us for public releases.

Move done using gomove [1] as with the v3 and v4 moves.

[1] https://github.com/KSubedi/gomove

Signed-off-by: Matt Heon <mheon@redhat.com>
2024-02-08 09:35:39 -05:00
Philip Dubé 522934d5cf Replace strings.SplitN with strings.Cut
Cut is a cleaner & more performant api relative to SplitN(_, _, 2) added in go 1.18

Previously applied this refactoring to buildah:
https://github.com/containers/buildah/pull/5239

Signed-off-by: Philip Dubé <philip@peerdb.io>
2024-01-11 13:50:15 +00:00
Sascha Grunert a46f798831
pkg: switch to golang native error wrapping
We now use the golang error wrapping format specifier `%w` instead of
the deprecated github.com/pkg/errors package.

[NO NEW TESTS NEEDED]

Signed-off-by: Sascha Grunert <sgrunert@redhat.com>
2022-07-08 08:54:47 +02:00
Valentin Rothberg bd09b7aa79 bump go module to version 4
Automated for .go files via gomove [1]:
`gomove github.com/containers/podman/v3 github.com/containers/podman/v4`

Remaining files via vgrep [2]:
`vgrep github.com/containers/podman/v3`

[1] https://github.com/KSubedi/gomove
[2] https://github.com/vrothberg/vgrep

Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
2022-01-18 12:47:07 +01:00
Mehul Arora 6fe03b25ab support container to container copy
Implement container to container copy.  Previously data could only be
copied from/to the host.

Fixes: 
Co-authored-by: Mehul Arora <aroram18@mcmaster.ca>
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
2021-07-27 15:32:23 +02:00
Valentin Rothberg a090301bbb podman cp: support copying on tmpfs mounts
Traditionally, the path resolution for containers has been resolved on
the *host*; relative to the container's mount point or relative to
specified bind mounts or volumes.

While this works nicely for non-running containers, it poses a problem
for running ones.  In that case, certain kinds of mounts (e.g., tmpfs)
will not resolve correctly.  A tmpfs is held in memory and hence cannot
be resolved relatively to the container's mount point.  A copy operation
will succeed but the data will not show up inside the container.

To support these kinds of mounts, we need to join the *running*
container's mount namespace (and PID namespace) when copying.

Note that this change implies moving the copy and stat logic into
`libpod` since we need to keep the container locked to avoid race
conditions.  The immediate benefit is that all logic is now inside
`libpod`; the code isn't scattered anymore.

Further note that Docker does not support copying to tmpfs mounts.

Tests have been extended to cover *both* path resolutions for running
and created containers.  New tests have been added to exercise the
tmpfs-mount case.

For the record: Some tests could be improved by using `start -a` instead
of a start-exec sequence.  Unfortunately, `start -a` is flaky in the CI
which forced me to use the more expensive start-exec option.

Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
2021-03-04 15:43:12 +01:00
Paul Holzinger 69ab67bf90 Enable golint linter
Use the golint linter and fix the reported problems.

[NO TESTS NEEDED]

Signed-off-by: Paul Holzinger <paul.holzinger@web.de>
2021-02-11 23:01:49 +01:00
Josh Soref 4fa1fce930 Spelling
Signed-off-by: Josh Soref <jsoref@users.noreply.github.com>
2020-12-22 13:34:31 -05:00
Valentin Rothberg adcb3a7a60 remote copy
Implement `podman-remote cp` and break out the logic from the previously
added `pkg/copy` into it's basic building blocks and move them up into
the `ContainerEngine` interface and `cmd/podman`.

The `--pause` and `--extract` flags are now deprecated and turned into
nops.

Note that this commit is vendoring a non-release version of Buildah to
pull in updates to the copier package.

Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
2020-12-18 12:08:49 +01:00
Valentin Rothberg a12323884f pkg/copy: introduce a Copier
Introduce a `Copier` object to separate the copy-rule enforcement from
copying.  That allows for a better error reporting of the REST API.

Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
2020-12-09 14:05:17 +01:00
Valentin Rothberg c2a5011c0d archive: move stat-header handling into copy package
Move handling the stat header into `pkg/copy`.  All copy-related should
ideally be located in this package to increase locality and reduce
scattering where possible.

Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
2020-12-09 12:03:00 +01:00
Valentin Rothberg 8472efdbd1 pkg/copy: add parsing API
Add an API for parsing user input into a possibly specified container
and path.  This allows for sharing the parsing code between the local
and the remote client (and bindings) in the future.

Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
2020-12-09 11:24:32 +01:00
Valentin Rothberg ccbca0b4ab rewrite podman-cp
* Add a new `pkg/copy` to centralize all container-copy related code.

* The new code is based on Buildah's `copier` package.

* The compat `/archive` endpoints use the new `copy` package.

* Update docs and an several new tests.

* Includes many fixes, most notably, the look-up of volumes and mounts.

Breaking changes:

 * Podman is now expecting that container-destination paths exist.
   Before, Podman created the paths if needed.  Docker does not do
   that and I believe Podman should not either as it's a recipe for
   masking errors.  These errors may be user induced (e.g., a path
   typo), or internal typos (e.g., when the destination may be a
   mistakenly unmounted volume).  Let's keep the magic low for such
   a security sensitive feature.

Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
2020-12-04 14:39:55 +01:00