As of now, there is no way to debug podman clean up processes.
They are started by conmon with no stdout/stderr and log nowhere.
This allows us to actually figure out what is going on when a
cleanup process runs.
Signed-off-by: Matthew Heon <matthew.heon@gmail.com>
Add the --ip flag back with bash completions. Manpages still
missing.
Add plumbing to pass appropriate the appropriate option down to
libpod to connect the flag to backend logic added in the previous
commits.
Signed-off-by: Matthew Heon <matthew.heon@gmail.com>
Prior, we were stopping containers serially. So if a container had a default
timeout of 10 seconds and there were five containers being stopped, the operation
would take roughly 50 seconds. If we stop these containers in parallel, the operation
should be roughly 10 seconds and change which is a significant speed up at scale.
Signed-off-by: baude <bbaude@redhat.com>
Execute /proc/self/exe instead of podman. This makes the runlabel
command more portable as it works for binaries outside the path as
well as for local builds.
Also, avoid redundantly executing the runlabel command by setting
the PODMAN_RUNLABEL_NESTED environment variable to "1". Podman
now checks for this variable before executing the runlabel command
and will throw an error in case the variable is set.
Signed-off-by: Valentin Rothberg <vrothberg@suse.com>
runc uses CRIU to support checkpoint and restore of containers. This
brings an initial checkpoint/restore implementation to podman.
None of the additional runc flags are yet supported and container
migration optimization (pre-copy/post-copy) is also left for the future.
The current status is that it is possible to checkpoint and restore a
container. I am testing on RHEL-7.x and as the combination of RHEL-7 and
CRIU has seccomp troubles I have to create the container without
seccomp.
With the following steps I am able to checkpoint and restore a
container:
# podman run --security-opt="seccomp=unconfined" -d registry.fedoraproject.org/f27/httpd
# curl -I 10.22.0.78:8080
HTTP/1.1 403 Forbidden # <-- this is actually a good answer
# podman container checkpoint <container>
# curl -I 10.22.0.78:8080
curl: (7) Failed connect to 10.22.0.78:8080; No route to host
# podman container restore <container>
# curl -I 10.22.0.78:8080
HTTP/1.1 403 Forbidden
I am using CRIU, runc and conmon from git. All required changes for
checkpoint/restore support in podman have been merged in the
corresponding projects.
To have the same IP address in the restored container as before
checkpointing, CNI is told which IP address to use.
If the saved network configuration cannot be found during restore, the
container is restored with a new IP address.
For CRIU to restore established TCP connections the IP address of the
network namespace used for restore needs to be the same. For TCP
connections in the listening state the IP address can change.
During restore only one network interface with one IP address is handled
correctly. Support to restore containers with more advanced network
configuration will be implemented later.
v2:
* comment typo
* print debug messages during cleanup of restore files
* use createContainer() instead of createOCIContainer()
* introduce helper CheckpointPath()
* do not try to restore a container that is paused
* use existing helper functions for cleanup
* restructure code flow for better readability
* do not try to restore if checkpoint/inventory.img is missing
* git add checkpoint.go restore.go
v3:
* move checkpoint/restore under 'podman container'
v4:
* incorporated changes from latest reviews
Signed-off-by: Adrian Reber <areber@redhat.com>
To work better with Kata containers, we need to delete() from the
OCI runtime as a part of cleanup, to ensure resources aren't
retained longer than they need to be.
To enable this, we need to add a new state to containers,
ContainerStateExited. Containers transition from
ContainerStateStopped to ContainerStateExited via cleanupRuntime
which is invoked as part of cleanup(). A container in the Exited
state is identical to Stopped, except it has been removed from
the OCI runtime and thus will be handled differently when
initializing the container.
Signed-off-by: Matthew Heon <matthew.heon@gmail.com>
* Update varlink document
* Add NoContainersInPod error in go and python
* Add support for varlink pod interface
* New code passes pylint
* Fix bug in test_runner.sh
* Update integration tests for race condition on status check
* Add missing port config file support
Signed-off-by: Jhon Honce <jhonce@redhat.com>
Execute the command as described by a container image. The value of the label is processed
into a command by:
1. Ensuring the first argument of the command is podman.
2. Substituting any variables with those defined by the environment or otherwise.
If no label exists in the container image, nothing is done.
podman container runlabel LABEL IMAGE extra_args
Signed-off-by: baude <bbaude@redhat.com>
For the sake of debug and problem reporting, we would benefit from knowing
what buildah version was vendored into podman. Also, knowing the distribution
and distribution version would also be handy.
Signed-off-by: baude <bbaude@redhat.com>
We added a timeout for convenience, but most invocations don't
care about it. Refactor it into WaitWithTimeout() and add a
Wait() that doesn't require a timeout and uses the default.
Signed-off-by: Matthew Heon <matthew.heon@gmail.com>
Closes: #1527
Approved by: mheon
This chunk was mistakenly removed with ecec1a5430
Introduce it back as it solves the pull of an image that is not yet in
the storage when using create/run.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Closes: #1521
Approved by: baude
Also update some missing fields libpod.conf obtions in man pages.
Fix sort order of security options and add a note about disabling
labeling.
When a process requests a new label. libpod needs to reserve all
labels to make sure that their are no conflicts.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Closes: #1406
Approved by: mheon
When image is not tagged, we should just set the imageName to the
image.ID.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Closes: #1501
Approved by: mheon
ALso cleanup files section or podman man page
Add description of policy.json
Sort alphabetically.
Add more info on oci hooks
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Closes: #1487
Approved by: umohnani8
do not error out when the storage is not initialized and the
entrypoint command is not available for the specified image. Check it
when we re-exec in an user namespace and can access the storage.
Closes: https://github.com/containers/libpod/issues/1452
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Every port we open consumes an open FD. This can easily consume
all available FDs for the podman process. Set rlimits to resolve
this.
Signed-off-by: Matthew Heon <matthew.heon@gmail.com>
Closes: #1437
Approved by: rhatdan
Adds functionality to search registries implementing the v2
endpoint with an empty query, that is the results will be
all the available images on the registries.
If this is tried with a v1 registry an error will occur.
To search a whole registry, there needs to be a trailing slash
at the end, i.e `podman search registry.fedoraproject.org/`.
Signed-off-by: Urvashi Mohnani <umohnani@redhat.com>
Closes: #1444
Approved by: rhatdan
Create two new createInit for checking if the cotnainer is initialized
correctly.
createContainer which creates the actual container and containerConfig
Also added libpodruntime.GetContainerRuntime to put common runtime code
into separate function.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Waiting uses a lot of CPU, so drop back to checking once/second
and allow user to pass in the interval.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
While this is not implemented yet, it is needed for working with existing
docker scripts.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Closes: #1460
Approved by: mheon
This is an incomplete fix, as it would be best for the libpod library to be in charge of coordinating the container's dependencies on the infra container. A TODO was left as such. UTS is a special case, because the docker library that namespace handling is based off of doesn't recognize a UTS based on another container as valid, despite the library being able to handle it correctly. Thus, it is left in the old way.
Signed-off-by: haircommander <pehunt@redhat.com>
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Closes: #1347
Approved by: mheon
With this change if an error is raised when fetching the size of the
image, the error string will be printed as the size (instead of
panicing). In this particular case, the error string is "unable to
determine size".
This fixes bug #1405
Signed-off-by: Steve Baker <sbaker@redhat.com>
Closes: #1423
Approved by: mheon
We should be sharing cgroups namespace by default in pods
uts namespace sharing was broken in pods.
Create a new libpod/pkg/namespaces for handling of namespace fields
in containers
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Closes: #1418
Approved by: mheon
to more closely mimic docker default behavior, the --layers
cli option is set to true by default for podman. the buildah
environment variable of BUILDAH_LAYERS is still honored and will
override the command line input.
this should be considered in place of PR #1383.
Many thanks for Scott McCarty for inspiring this welcome change.
Signed-off-by: baude <bbaude@redhat.com>
Closes: #1422
Approved by: rhatdan
Figuring out the difference between a User and a USERNS
as well as Cgroup and CGROUPNS
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Closes: #1417
Approved by: TomSweeneyRedHat
