The --env is used to add new environment variable to container or
override the existing one. The --unsetenv is used to remove
the environment variable.
It is done by sharing "env" and "unsetenv" flags between both
"update" and "create" commands and later handling these flags
in the "update" command handler.
The list of environment variables to add/remove is stored
in newly added variables in the ContainerUpdateOptions.
The Container.Update API call is refactored to take
the ContainerUpdateOptions as an input to limit the number of its
arguments.
The Env and UnsetEnv lists are later handled using the envLib
package and the Container is updated.
The remote API is also extended to handle Env and EnvUnset.
Fixes: #24875
Signed-off-by: Jan Kaluza <jkaluza@redhat.com>
New flags in a `podman update` can change the configuration of HealthCheck when the container is started, without having to restart or recreate the container.
This can help determine why a given container suddenly started failing HealthCheck without interfering with the services it provides. For example, reconfigure HealthCheck to keep logs longer than the usual last X results, store logs to other destinations, etc.
Fixes: https://issues.redhat.com/browse/RHEL-60561
Signed-off-by: Jan Rodák <hony.com@seznam.cz>
This is something Docker does, and we did not do until now. Most
difficult/annoying part was the REST API, where I did not really
want to modify the struct being sent, so I made the new restart
policy parameters query parameters instead.
Testing was also a bit annoying, because testing restart policy
always is.
Signed-off-by: Matt Heon <mheon@redhat.com>
The logic here is more complex than I would like, largely due to
the behavior of `podman inspect` for running containers. When a
container is running, `podman inspect` will source as much as
possible from the OCI spec used to run that container, to grab
up-to-date information on things like devices. We don't want to
change this, it's definitely the right behavior, but it does make
updating a running container inconvenient: we have to rewrite the
OCI spec as part of the update to make sure that `podman inspect`
will read the correct resource limits.
Also, make update emit events. Docker does it, we should as well.
Signed-off-by: Matt Heon <mheon@redhat.com>
On Mac and Windows systems the --latest option is not supported
this PR mentions this fact in the examples section of the man page.
Also added documentation and consistency to the man pages examples
sections.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
Short description in man pages:
* Use imperative form
Command help (cobra.Command.Short):
* Capitalize first letter
* Use imperative form
* Remove ending full stop when the short description
only contains one sentence without any commas
Command help (cobra.Command.Long):
* Capitalize first letter unless the sentence starts
with a command "podman command ..."
* Use imperative form when the long description is
identical or almost identical to the short description.
This modification was only done in a few places.
Command tables:
* Use imperative form in the "Description" column
[NO NEW TESTS NEEDED]
Signed-off-by: Erik Sjölund <erik.sjolund@gmail.com>
Added the functionality for a user to update the PIDs limit for a
container.
Fixes: #16543
Signed-off-by: Jake Correnti <jakecorrenti+github@proton.me>
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>
