This ignores the create request if the named volume already exists.
It is very useful when scripting stuff.
Signed-off-by: Alexander Larsson <alexl@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>
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>
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>
When the volume does not exist we should output an error stating so and
not some generic one.
Fixes#14411
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
The errcheck linter makes sure that errors are always check and not
ignored by accident. It spotted a lot of unchecked errors, mostly in the
tests but also some real problem in the code.
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
Many ginkgo tests have been written to use this evil form:
GrepString("foo")
Expect(that to BeTrue())
...which yields horrible useless messages on failure:
false is not true
Identify those (automatically, via script) and convert to:
Expect(output to ContainSubstring("foo"))
...which yields:
"this output" does not contain substring "foo"
There are still many BeTrue()s left. This is just a start.
This is commit 1 of 2. It includes the script I used, and
all changes to *.go are those computed by the script.
Commit 2 will apply some manual fixes.
Signed-off-by: Ed Santiago <santiago@redhat.com>
Following feature makes sure that users can load contents of external
tarball into the podman volumes.
Signed-off-by: flouthoc <flouthoc.git@gmail.com>
Adds support for transferring data between systems and backing up systems.
Use cases: recover from disasters or move data between machines.
Signed-off-by: flouthoc <flouthoc.git@gmail.com>
e2e test failures are rife with messages like:
Expected 1 to equal 0
These make me cry. They're anti-helpful, requiring the reader
to dive into the source code to figure out what those numbers
mean.
Solution: Go tests have a '.Should(Exit(NNN))' mechanism. I
don't know if it spits out a better diagnostic (I have no way
to run e2e tests on my laptop), but I have to fantasize that
it will, and given the state of our flakes I assume that at
least one test will fail and give me the opportunity to see
what the error message looks like.
THIS IS NOT REVIEWABLE CODE. There is no way for a human
to review it. Don't bother. Maybe look at a few random
ones for sanity. If you want to really review, here is
a reproducer of what I did:
cd test/e2e
! positive assertions. The second is the same as the first,
! with the addition of (unnecessary) parentheses because
! some invocations were written that way. The third is BeZero().
perl -pi -e 's/Expect\((\S+)\.ExitCode\(\)\)\.To\(Equal\((\d+)\)\)/Expect($1).Should(Exit($2))/' *_test.go
perl -pi -e 's/Expect\((\S+)\.ExitCode\(\)\)\.To\(\(Equal\((\d+)\)\)\)/Expect($1).Should(Exit($2))/' *_test.go
perl -pi -e 's/Expect\((\S+)\.ExitCode\(\)\)\.To\(BeZero\(\)\)/Expect($1).Should(Exit(0))/' *_test.go
! Same as above, but handles three non-numeric exit codes
! in run_exit_test.go
perl -pi -e 's/Expect\((\S+)\.ExitCode\(\)\)\.To\(Equal\((\S+)\)\)/Expect($1).Should(Exit($2))/' *_test.go
! negative assertions. Difference is the spelling of 'To(Not)',
! 'ToNot', and 'NotTo'. I assume those are all the same.
perl -pi -e 's/Expect\((\S+)\.ExitCode\(\)\)\.To\(Not\(Equal\((0)\)\)\)/Expect($1).To(ExitWithError())/' *_test.go
perl -pi -e 's/Expect\((\S+)\.ExitCode\(\)\)\.ToNot\(Equal\((0)\)\)/Expect($1).To(ExitWithError())/' *_test.go
perl -pi -e 's/Expect\((\S+)\.ExitCode\(\)\)\.NotTo\(Equal\((0)\)\)/Expect($1).To(ExitWithError())/' *_test.go
! negative, old use of BeZero()
perl -pi -e 's/Expect\((\S+)\.ExitCode\(\)\)\.ToNot\(BeZero\(\)\)/Expect($1).Should(ExitWithError())/' *_test.go
Run those on a clean copy of main branch (at the same branch
point as my PR, of course), then diff against a checked-out
copy of my PR. There should be no differences. Then all you
have to review is that my replacements above are sane.
UPDATE: nope, that's not enough, you also need to add gomega/gexec
to the files that don't have it:
perl -pi -e '$_ .= "$1/gexec\"\n" if m!^(.*/onsi/gomega)"!' $(grep -L gomega/gexec $(git log -1 --stat | awk '$1 ~ /test\/e2e\// { print $1}'))
UPDATE 2: hand-edit run_volume_test.go
UPDATE 3: sigh, add WaitWithDefaultTimeout() to a couple of places
UPDATE 4: skip a test due to bug #10935 (race condition)
Signed-off-by: Ed Santiago <santiago@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>
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>
enabled integration tests for volumes. there are two exceptions that still need work because of something not yet implemented.
also, add code to deal with the fact that containers conf appears to set a local volume driver where it used to be simply blank.
Signed-off-by: Brent Baude <bbaude@redhat.com>
Everything else is a flag to mount, but "uid" and "gid" are not.
We need to parse them out of "o" and handle them separately.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
Rather than checking for non-zero, we need to check for >0 to
distinguish between timeouts and error exit codes.
Signed-off-by: Jhon Honce <jhonce@redhat.com>
When volume options and the local volume driver are specified,
the volume is intended to be mounted using the 'mount' command.
Supported options will be used to volume the volume before the
first container using it starts, and unmount the volume after the
last container using it dies.
This should work for any local filesystem, though at present I've
only tested with tmpfs and btrfs.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
when doing localized tests (not varlink), we can use secondary image
stores as read-only image caches. this cuts down on test time
significantly because each test does not need to restore the images from
a tarball anymore.
Signed-off-by: baude <bbaude@redhat.com>
a series of improvements to our ginkgo test framework so we can
get better ideas of whats going on when run in CI
Signed-off-by: baude <bbaude@redhat.com>
allow users to remotely prune volumes.
this is the last volume command for remote enablement. as such,
the volume commands are being folded back into main because they
are supported for both local and remote clients.
also, enable all volume tests that do not use containers
as containers are not enabled for the remote client yet.
Signed-off-by: baude <bbaude@redhat.com>
Add the ability to run the integration (ginkgo) suite using
the remote client.
Only the images_test.go file is run right now; all the rest are
isolated with a // +build !remotelinux. As more content is
developed for the remote client, we can unblock the files and
just block single tests as needed.
Signed-off-by: baude <bbaude@redhat.com>
Erik Sjölund
Alexander Larsson
Matthew Heon
Matthew Heon
cdoern
Paul Holzinger
Daniel J Walsh
Valentin Rothberg
Ed Santiago
flouthoc
zhangguanzhang
Brent Baude
Jhon Honce
Urvashi Mohnani