Restart policy of initContainers should not be overriden by pod and
the restart policy should always be "no".
See #16343
Signed-off-by: Tony Duan <tony.duan@gapp.nthu.edu.tw>
Add --restart flag to pod create to allow users to set the
restart policy for the pod, which applies to all the containers
in the pod. This reuses the restart policy already there for
containers and has the same restart policy options.
Add "never" to the restart policy options to match k8s syntax.
It is a synonym for "no" and does the exact same thing where the
containers are not restarted once exited.
Only the containers that have exited will be restarted based on the
restart policy, running containers will not be restarted when an exited
container is restarted in the same pod (same as is done in k8s).
Signed-off-by: Urvashi Mohnani <umohnani@redhat.com>
The default_ulimits field is currently ignored in podman run commands.
This PR fixes this.
Fixes: https://github.com/containers/podman/issues/17396
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Currently Podman prevents SELinux container separation,
when running within a container. This PR adds a new
--security-opt label=nested
When setting this option, Podman unmasks and mountsi
/sys/fs/selinux into the containers making /sys/fs/selinux
fully exposed. Secondly Podman sets the attribute
run.oci.mount_context_type=rootcontext
This attribute tells crun to mount volumes with rootcontext=MOUNTLABEL
as opposed to context=MOUNTLABEL.
With these two settings Podman inside the container is allowed to set
its own SELinux labels on tmpfs file systems mounted into its parents
container, while still being confined by SELinux. Thus you can have
nested SELinux labeling inside of a container.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
* add tests
* add documentation for --shm-size-systemd
* add support for both pod and standalone run
Signed-off-by: danishprakash <danish.prakash@suse.com>
subpath allows for only a subdirecty of a volumes data to be mounted in the container
add support for the named volume type sub path with others to follow.
resolves#12929
Signed-off-by: Charlie Doern <cbddoern@gmail.com>
Fix an overriding logic in Inhearit function.
Alos, ToSpecGen function doesn't load the cgroup/image volume config from containers.conf.
Signed-off-by: karta0807913 <karta0807913@gmail.com>
Startup healthchecks are similar to K8S startup probes, in that
they are a separate check from the regular healthcheck that runs
before it. If the startup healthcheck fails repeatedly, the
associated container is restarted.
Signed-off-by: Matthew Heon <matthew.heon@pm.me>
honor eventual options set in the containers.userns setting in the
containers.conf file, e.g.:
[containers]
userns = "auto:size=8192"
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Whenever image has `arch` and `os` configured for `wasm/wasi` switch to
`crun-wasm` as extension if applicable, following will only work if
`podman` is using `crun` as default runtime.
[NO NEW TESTS NEEDED]
[NO TESTS NEEDED]
A test for this can be added when `crun-wasm` is part of CI.
Signed-off-by: Aditya R <arajan@redhat.com>
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>
For systems that have extreme robustness requirements (edge devices,
particularly those in difficult to access environments), it is important
that applications continue running in all circumstances. When the
application fails, Podman must restart it automatically to provide this
robustness. Otherwise, these devices may require customer IT to
physically gain access to restart, which can be prohibitively difficult.
Add a new `--on-failure` flag that supports four actions:
- **none**: Take no action.
- **kill**: Kill the container.
- **restart**: Restart the container. Do not combine the `restart`
action with the `--restart` flag. When running inside of
a systemd unit, consider using the `kill` or `stop`
action instead to make use of systemd's restart policy.
- **stop**: Stop the container.
To remain backwards compatible, **none** is the default action.
Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>
podman update allows users to change the cgroup configuration of an existing container using the already defined resource limits flags
from podman create/run. The supported flags in crun are:
this command is also now supported in the libpod api via the /libpod/containers/<CID>/update endpoint where
the resource limits are passed inthe request body and follow the OCI resource spec format
–memory
–cpus
–cpuset-cpus
–cpuset-mems
–memory-swap
–memory-reservation
–cpu-shares
–cpu-quota
–cpu-period
–blkio-weight
–cpu-rt-period
–cpu-rt-runtime
-device-read-bps
-device-write-bps
-device-read-iops
-device-write-iops
-memory-swappiness
-blkio-weight-device
resolves#15067
Signed-off-by: Charlie Doern <cdoern@redhat.com>
When a kube yaml has a volume set as empty dir, podman
will create an anonymous volume with the empty dir name and
attach it to the containers running in the pod. When the pod
is removed, the empy dir volume created is also removed.
Add tests and docs for this as well.
Signed-off-by: Urvashi Mohnani <umohnani@redhat.com>
Integrate sd-notify policies into `kube play`. The policies can be
configured for all contianers via the `io.containers.sdnotify`
annotation or for indidivual containers via the
`io.containers.sdnotify/$name` annotation.
The `kube play` process will wait for all containers to be ready by
waiting for the individual `READY=1` messages which are received via
the `pkg/systemd/notifyproxy` proxy mechanism.
Also update the simple "container" sd-notify test as it did not fully
test the expected behavior which became obvious when adding the new
tests.
Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>
The notify socket can now either be specified via an environment
variable or programatically (where the env is ignored). The
notify mode and the socket are now also displayed in `container inspect`
which comes in handy for debugging and allows for propper testing.
Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>
pod resource limits introduced a regression where `FinishThrottleDevices` was not called for create/run
Signed-off-by: Charlie Doern <cdoern@redhat.com>
added the following flags and handling for podman pod create
--memory-swap
--cpuset-mems
--device-read-bps
--device-write-bps
--blkio-weight
--blkio-weight-device
--cpu-shares
given the new backend for systemd in c/common, all of these can now be exposed to pod create.
most of the heavy lifting (nearly all) is done within c/common. However, some rewiring needed to be done here
as well!
Signed-off-by: Charlie Doern <cdoern@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 support for the --uts flag in pod create, allowing users to avoid
issues with default values in containers.conf.
uts follows the same format as other namespace flags:
--uts=private (default), --uts=host, --uts=ns:PATH
resolves#13714
Signed-off-by: Charlie Doern <cdoern@redhat.com>
currently, setting any sort of resource limit in a pod does nothing. With the newly refactored creation process in c/common, podman ca now set resources at a pod level
meaning that resource related flags can now be exposed to podman pod create.
cgroupfs and systemd are both supported with varying completion. cgroupfs is a much simpler process and one that is virtually complete for all resource types, the flags now just need to be added. systemd on the other hand
has to be handeled via the dbus api meaning that the limits need to be passed as recognized properties to systemd. The properties added so far are the ones that podman pod create supports as well as `cpuset-mems` as this will
be the next flag I work on.
Signed-off-by: Charlie Doern <cdoern@redhat.com>
expose the --shm-size flag to podman pod create and add proper handling and inheritance
for the option.
resolves#14609
Signed-off-by: Charlie Doern <cdoern@redhat.com>
infra was overriding options that it should be appending rather than resetting.
fix this by appending the given container's spec to the compatible options before marshaling/unmarshaling
resolves#14454
Signed-off-by: cdoern <cdoern@redhat.com>
If a privileged container is running, stops, and the devices on the host
change, such as a USB device is unplugged, then a container would no
longer start. Previously, the devices from the host were only being
added to the container once: when the container was created. Now, this
happens every time the container starts.
I did this by adding a boolean to the container config that indicates
whether to mount all of the devices or not, which can be set via an option.
During spec generation, if the `MountAllDevices` option is set in the
container config, all host devices are added to the container.
Additionally, a couple of functions from `pkg/specgen/generate/config_linux.go`
were moved into `pkg/util/utils_linux.go` as they were needed in
multiple packages.
Closes#13899
Signed-off-by: Jake Correnti <jcorrenti13@gmail.com>
currently tags cause a panic due to an uninitialized map. Initialize the map
and add parsing to make sure we are only tagging with journald
resolves#13356
Signed-off-by: cdoern <cbdoer23@g.holycross.edu>
since the network config is a string map, json.unmarshal does not recognize
the config and spec as the same entity, need to map this option manually
resolves#13713
Signed-off-by: cdoern <cbdoer23@g.holycross.edu>
The linter ensures a common code style.
- use switch/case instead of else if
- use if instead of switch/case for single case statement
- add space between comment and text
- detect the use of defer with os.Exit()
- use short form var += "..." instead of var = var + "..."
- detect problems with append()
```
newSlice := append(orgSlice, val)
```
This could lead to nasty bugs because the orgSlice will be changed in
place if it has enough capacity too hold the new elements. Thus we
newSlice might not be a copy.
Of course most of the changes are just cosmetic and do not cause any
logic errors but I think it is a good idea to enforce a common style.
This should help maintainability.
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
`DefineCreateFlags` was excluding clone from using the memory-swappiness flag leading the value to be zero
when our deafult is -1. Rearrange the if/else to give clone these memory related options
resolves#13856
Signed-off-by: cdoern <cdoern@redhat.com>
It allows to customize the entry that is written to the `/etc/passwd`
file when --passwd is used.
Closes: https://github.com/containers/podman/issues/13185
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
the infra Inherit function was not properly passing pod volume information to new containers
alter the inherit function and struct to use the new `ConfigToSpec` function used in clone
pick and choose the proper entities from a temp spec and validate them on the spegen side rather
than passing directly to a config
resolves#13548
Signed-off-by: cdoern <cbdoer23@g.holycross.edu>
Signed-off-by: cdoern <cdoern@redhat.com>
Signed-off-by: cdoern <cbdoer23@g.holycross.edu>
podman container clone takes the id of an existing continer and creates a specgen from the given container's config
recreating all proper namespaces and overriding spec options like resource limits and the container name if given in the cli options
this command utilizes the common function DefineCreateFlags meaning that we can funnel as many create options as we want
into clone over time allowing the user to clone with as much or as little of the original config as they want.
container clone takes a second argument which is a new name and a third argument which is an image name to use instead of the original container's
the current supported flags are:
--destroy (remove the original container)
--name (new ctr name)
--cpus (sets cpu period and quota)
--cpuset-cpus
--cpu-period
--cpu-rt-period
--cpu-rt-runtime
--cpu-shares
--cpuset-mems
--memory
--run
resolves#10875
Signed-off-by: cdoern <cdoern@redhat.com>
Signed-off-by: cdoern <cbdoer23@g.holycross.edu>
Signed-off-by: cdoern <cdoern@redhat.com>
This change updates the CDI API to commit 46367ec063fda9da931d050b308ccd768e824364
which addresses some inconistencies in the previous implementation.
Signed-off-by: Evan Lezar <elezar@nvidia.com>
Added support for pod security options. These are applied to infra and passed down to the
containers as added (unless overridden).
Modified the inheritance process from infra, creating a new function Inherit() which reads the config, and marshals the compatible options into an intermediate struct `InfraInherit`
This is then unmarshaled into a container config and all of this is added to the CtrCreateOptions. Removes the need (mostly) for special additons which complicate the Container_create
code and pod creation.
resolves#12173
Signed-off-by: cdoern <cdoern@redhat.com>
Some containers require certain user account(s) to exist within the
container when they are run. This option will allow callers to add a
bunch of passwd entries from the host to the container even if the
entries are not in the local /etc/passwd file on the host.
Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1935831
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
