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>
Being able to easily identify what lock has been allocated to a
given Libpod object is only somewhat useful for debugging lock
issues, but it's trivial to expose and I don't see any harm in
doing so.
Signed-off-by: Matt Heon <mheon@redhat.com>
We added the concept of image volumes in 2.2.0, to support
inspecting an image from within a container. However, this is a
strictly read-only mount, with no modification allowed.
By contrast, the new `image` volume driver creates a c/storage
container as its underlying storage, so we have a read/write
layer. This, in and of itself, is not especially interesting, but
what it will enable in the future is. If we add a new command to
allow these image volumes to be committed, we can now distribute
volumes - and changes to them - via a standard OCI image registry
(which is rather new and quite exciting).
Future work in this area:
- Add support for `podman volume push` (commit volume changes and
push resulting image to OCI registry).
- Add support for `podman volume pull` (currently, we require
that the image a volume is created from be already pulled; it
would be simpler if we had a dedicated command that did the
pull and made a volume from it)
- Add support for scratch images (make an empty image on demand
to use as the base of the volume)
- Add UOR support to `podman volume push` and
`podman volume pull` to enable both with non-image volume
drivers
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
Podman adds an Error: to every error message. So starting an error
message with "error" ends up being reported to the user as
Error: error ...
This patch removes the stutter.
Also ioutil.ReadFile errors report the Path, so wrapping the err message
with the path causes a stutter.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Also, do a general cleanup of all the timeout code. Changes
include:
- Convert from int to *uint where possible. Timeouts cannot be
negative, hence the uint change; and a timeout of 0 is valid,
so we need a new way to detect that the user set a timeout
(hence, pointer).
- Change name in the database to avoid conflicts between new data
type and old one. This will cause timeouts set with 4.2.0 to be
lost, but considering nobody is using the feature at present
(and the lack of validation means we could have invalid,
negative timeouts in the DB) this feels safe.
- Ensure volume plugin timeouts can only be used with volumes
created using a plugin. Timeouts on the local driver are
nonsensical.
- Remove the existing test, as it did not use a volume plugin.
Write a new test that does.
The actual plumbing of the containers.conf timeout in is one line
in volume_api.go; the remainder are the above-described cleanups.
Signed-off-by: Matthew Heon <mheon@redhat.com>
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>
add an option to configure the driver timeout when creating a volume.
The default is 5 seconds but this value is too small for some custom drivers.
Signed-off-by: cdoern <cdoern@redhat.com>
Currently Docker copies up the first volume on a mountpoint with
data.
Fixes: https://github.com/containers/podman/issues/12714
Also added NeedsCopyUP, NeedsChown and MountCount to the podman volume
inspect code.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
We missed bumping the go module, so let's do it now :)
* Automated go code with github.com/sirkon/go-imports-rename
* Manually via `vgrep podman/v2` the rest
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
This implements support for mounting and unmounting volumes
backed by volume plugins. Support for actually retrieving
plugins requires a pull request to land in containers.conf and
then that to be vendored, and as such is not yet ready. Given
this, this code is only compile tested. However, the code for
everything past retrieving the plugin has been written - there is
support for creating, removing, mounting, and unmounting volumes,
which should allow full functionality once the c/common PR is
merged.
A major change is the signature of the MountPoint function for
volumes, which now, by necessity, returns an error. Named volumes
managed by a plugin do not have a mountpoint we control; instead,
it is managed entirely by the plugin. As such, we need to cache
the path in the DB, and calls to retrieve it now need to access
the DB (and may fail as such).
Notably absent is support for SELinux relabelling and chowning
these volumes. Given that we don't manage the mountpoint for
these volumes, I am extremely reluctant to try and modify it - we
could easily break the plugin trying to chown or relabel it.
Also, we had no less than *5* separate implementations of
inspecting a volume floating around in pkg/infra/abi and
pkg/api/handlers/libpod. And none of them used volume.Inspect(),
the only correct way of inspecting volumes. Remove them all and
consolidate to using the correct way. Compat API is likely still
doing things the wrong way, but that is an issue for another day.
Fixes#4304
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
With the advent of Podman 2.0.0 we crossed the magical barrier of go
modules. While we were able to continue importing all packages inside
of the project, the project could not be vendored anymore from the
outside.
Move the go module to new major version and change all imports to
`github.com/containers/libpod/v2`. The renaming of the imports
was done via `gomove` [1].
[1] https://github.com/KSubedi/gomove
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
move the chown for newly created volumes after the spec generation so
the correct UID/GID are known.
Closes: https://github.com/containers/libpod/issues/5698
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
In Podman 1.6.3, we added support for anonymous volumes - fixing
our old, broken support for named volumes that were created with
containers. Unfortunately, this reused the database field we used
for the old implementation, and toggled volume removal on for
`podman run --rm` - so now, we were removing *named* volumes
created with older versions of Podman.
We can't modify these old volumes in the DB, so the next-safest
thing to do is swap to a new field to indicate volumes should be
removed. Problem: Volumes created with 1.6.3 and up until this
lands, even anonymous volumes, will not be removed. However, this
is safer than removing too many volumes, as we were doing before.
Fixes#5009
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
Begin to separate the internal structures and frontend for
inspect on volumes. We can't rely on keeping internal data
structures for external presentation - separating presentation
and internal data format is good practice.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
Matt Heon
Oleksandr Redko
Paul Holzinger
Matthew Heon
Daniel J Walsh
Sascha Grunert
cdoern
Valentin Rothberg
Giuseppe Scrivano