External containers are containers created outside of Podman.
For example Buildah and CRI-O Containers.
$ buildah from alpine
alpine-working-container
$ buildah run alpine-working-container touch /test
$ podman container exists --external alpine-working-container
$ podman container diff alpine-working-container
C /etc
A /test
Added --external flag to refer to external containers, rather then --storage.
Added --external for podman container exists and modified podman ps to use
--external rather then --storage. It was felt that --storage would confuse
the user into thinking about changing the storage driver or options.
--storage is still supported through the use of aliases.
Finally podman contianer diff, does not require the --external flag, since it
there is little change of users making the mistake, and would just be a pain
for the user to remember the flag.
podman container exists --external is required because it could fool scripts
that rely on the existance of a Podman container, and there is a potential
for a partial deletion of a container, which could mess up existing users.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Current these commands only check if a container exists in libpod. With
this fix, the commands will also check if they are in containers/storage.
This allows users to look at differences within a buildah or CRI-O container.
Currently buildah diff does not exists, so this helps out in that situation
as well as in CRI-O since the cri does not implement a diff command.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Expand the use of the Shutdown package such that we now use it
to handle signals any time we run Libpod. From there, add code to
container creation to use the Inhibit function to prevent a
shutdown from occuring during the critical parts of container
creation.
We also need to turn off signal handling when --sig-proxy is
invoked - we don't want to catch the signals ourselves then, but
instead to forward them into the container via the existing
sig-proxy handler.
Fixes#7941
Signed-off-by: Matthew Heon <mheon@redhat.com>
Currenly if a user specifies the name or ID of an external storage
container, we report an error to them.
buildah from scratch
working-container-2
podman rm working-container-2
Error: no container with name or ID working-container-2 found: no such container
Since the user specified the correct name and the container is in storage we
force them to specify --storage to remove it. This is a bad experience for the
user.
This change will just remove the container from storage. If the container
is known by libpod, it will remove the container from libpod as well.
The podman rm --storage option has been deprecated, and removed from docs.
Also cleaned documented options that are not available to podman-remote.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
due to a lack of "locking" on cni operations, we could get ourselves in trouble when doing rapid creation or removal of networks. added a simple file lock to deal with the collision and because it is not considered a performent path, use of the file lock should be ok. if proven otherwise in the future, some generic shared memory lock should be implemented for libpod and also used here.
moved pkog/network to libpod/network because libpod is now being pulled into the package and it has therefore lost its generic nature. this will make it easier to absorb into libpod as we try to make the network closer to core operations.
Fixes: #7807
Signed-off-by: baude <bbaude@redhat.com>
Make Podman pod operations that do not involve starting
containers (which needs to be done in a specific order) use the
same parallel operation code we use to make `podman stop` on
large numbers of containers fast. We were previously stopping
containers in a pod serially, which could take up to the timeout
(default 15 seconds) for each container - stopping 100 containers
that do not respond to SIGTERM would take 25 minutes.
To do this, refactor the parallel operation code a bit to remove
its dependency on libpod (damn circular import restrictions...)
and use parallel functions that just re-use the standard
container API operations - maximizes code reuse (previously each
pod handler had a separate implementation of the container
function it performed).
This is a bit of a palate cleanser after fighting CI for two
days - nice to be able to return to a land of sanity.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
This commit is courtesy of
```
for f in $(git ls-files *.go | grep -v ^vendor/); do \
sed -i 's/\(errors\..*\)"Error /\1"error /' $f;
done
for f in $(git ls-files *.go | grep -v ^vendor/); do \
sed -i 's/\(errors\..*\)"Failed to /\1"failed to /' $f;
done
```
etc.
Self-reviewed using `git diff --word-diff`, found no issues.
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
In case os.Open[File], os.Mkdir[All], ioutil.ReadFile and the like
fails, the error message already contains the file name and the
operation that fails, so there is no need to wrap the error with
something like "open %s failed".
While at it
- replace a few places with os.Open, ioutil.ReadAll with
ioutil.ReadFile.
- replace errors.Wrapf with errors.Wrap for cases where there
are no %-style arguments.
Signed-off-by: Kir Kolyshkin <kolyshkin@gmail.com>
Make sure to remove images until there's nothing left to prune.
A single iteration may not be sufficient.
Fixes: #7872
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
Fix the look up of containers and pods in the remote client. User input
can refer to both, names or IDs of containers and pods, so there is a
fair chance of collisions (e.g., "c1" name with a "c1...." ID).
Those collisions are well handled (and battle tested) in the local
client which is directly using the libpod backend. Hence, the remote
client should not attempt to introduce its own logic to prevent bugs and
divergence between the local and the remote clients. To prevent
collisions such as in #7837, do a container/pod inspect on the
user-provided input to find the corresponding ID and eventually do full
ID comparisons to avoid potential collisions with names.
Note that this has a cost that I am not entirely happy with. Looking at
issue #7837, the collisions are happening when removing the two
containers. Remote container removal is now very chatty with the server
as it first queries for all containers, then iterates over the provided
names or IDs and does a remote inspect to figure out the IDs and find a
matching container object. However, remote removal could just pass the
names and IDs directly to the batch removal endpoint. Querying for all
containers could be prevented if the batch removal endpoint would remove
all if the slice is empty.
In other words, the bug is fixed but there's room for performance
improvements.
Fixes: #7837
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
podman volume prune -f
Should just tell the prune command to not prompt for confirmation.
It should not be passing the prune flag into the API.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Fix the remote client to untag all tags of the specified image.
Instead of querying the image on the client side, support the
case where both, repo and tag, are empty and remove all tags.
Reuse the ABI implementation where possible. In retrospective,
the libpod untag endpoint should support a slice of strings to
batch remove tags rather than reaching out for each tag individually.
Enable the skipped test.
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
In podman containers rm and podman images rm, the commands
exit with error code 1 if the object does not exists.
This PR implements similar functionality to volumes, networks, and Pods.
Similarly if volumes or Networks are in use by other containers, and return
exit code 2.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
The podman remote client ignored the force option due a typo.
If an error occured the remote client would panic with an
index out of range error.
Signed-off-by: Paul Holzinger <paul.holzinger@web.de>
Currently the --pull missing|always|never is ignored
This PR implements this for local API. For remote we
need to default to pullpolicy specified in the containers.conf
file.
Also fixed an issue when images were matching other images names
based on prefix, causing images to always be pulled.
I had named an image myfedora and when ever I pulled fedora, the system
thought that it there were two images named fedora since it was checking
for the name fedora as well as the prefix fedora. I changed it to check
for fedora and the prefix /fedora, to prefent failures like I had.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
The remote client does not support loading directories yet. To prevent
confusing error messages and to make the behaviour more explicit, check
if the input points to a directory and throw an error if needed.
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
Have a clear separation of concerns for the CLI-only options (and their
logic) from the backend. The backend logic is now easier to understand
(e.g., `stream` instead of `noStream`).
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
Add a new endpoint for container stats allowing for batch operations on
more than one container. The new endpoint deprecates the
single-container endpoint which will eventually be removed with the next
major release.
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
Most have been fixed, others I replaced with SkipIfRemote
Fix ContainerStart on tunnel, it needs to wait for the exit status
before returning.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Refactor the entities' stats API to simplify using it and reduce the
risk of running into concurrency issues at the call sites. Further
simplify the stats code by de-spaghetti-ing the logic and reducing
duplicate code.
`ContainerStats` now returns a data channel and an error. If the error
is nil, callers can read from the channel.
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
When we execute podman-remote attach, we were not checking if the
container was in the correct state, this is leading to timeouts and
we had turned off remote testing.
Also added an IfRemote() function so we can turn on more tests when
using the "-l" flag for local, but use container name for remote.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
id is the last image id from the set of id's returned via the images
stanza.
id may be deprecated in a future version of the API
Created test_rest_v2_0_0.py to reflect the bump in the API Version.
Fixes#7686
Signed-off-by: Jhon Honce <jhonce@redhat.com>
Currently `podman image unmount` report every image that is mounted
when it unmounts them. We should only report unmounted actually mounted images.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
