If you are running temporary containers within podman play kube
we should really be running these in read-only mode. For automotive
they plan on running all of their containers in read-only temporal
mode. Adding this option guarantees that the container image is not
being modified during the running of the container.
The containers can only write to tmpfs mounted directories.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
podman play kube now supports and has tests for the subpath field when using a hostPath volume type and a configMap volume type.
The hostpath works similarly to the named volume, allowing a user to specify a whole directory but also a specific file or subdir within that mount. Config Maps operate the same way but specifically allow users to mount specific data in a subpath alongside the existing data
resolves#16828
Signed-off-by: Charlie Doern <cbddoern@gmail.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>
* podman kube play support startup probe
* make probe use json string array instead of CMD-SHELL
Signed-off-by: Liang Chu-Xuan <karta0807913@gmail.com>
Fixes e2e tests, remove '\n' from base64 encoded data.
Correct test to check that data in secret mounted file is decoded.
Closes#16269Closes#16625
Signed-off-by: Andrei Natanael Cosma <andrei@intersect.ro>
The containers should be able to write to tmpfs mounted directories.
Also cleanup output of podman kube generate to not show default values.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.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>
Ensure kubernetes default parameters are respected.
Additional curl parameter enforces returning error for HTTP error codes.
Use build-in HealthCheckOnFailureAction instead of killing the container
while executing the probe.
Signed-off-by: Piotr <piotr.skoczylas@gmail.com>
This logic has been broken by commit 9c6c981928
(kube: fix conversion from milliCPU to period/quota).
[NO NEW TESTS NEEDED]
Fixes: #15726
Signed-off-by: Mikhail Khachayants <tyler92@inbox.ru>
Add auto-update support to `podman kube play`. Auto-update policies can
be configured for:
* the entire pod via the `io.containers.autoupdate` annotation
* a specific container via the `io.containers.autoupdate/$name` annotation
To make use of rollbacks, the `io.containers.sdnotify` policy should be
set to `container` such that the workload running _inside_ the container
can send the READY message via the NOTIFY_SOCKET once ready. For
further details on auto updates and rollbacks, please refer to the
specific article [1].
Since auto updates and rollbacks bases on Podman's systemd integration,
the k8s YAML must be executed in the `podman-kube@` systemd template.
For further details on how to run k8s YAML in systemd via Podman, please
refer to the specific article [2].
An examplary k8s YAML may look as follows:
```YAML
apiVersion: v1
kind: Pod
metadata:
annotations:
io.containers.autoupdate: "local"
io.containers.autoupdate/b: "registry"
labels:
app: test
name: test_pod
spec:
containers:
- command:
- top
image: alpine
name: a
- command:
- top
image: alpine
name: b
```
[1] https://www.redhat.com/sysadmin/podman-auto-updates-rollbacks
[2] https://www.redhat.com/sysadmin/kubernetes-workloads-podman-systemd
Signed-off-by: Valentin Rothberg <vrothberg@redhat.com>
The format used for setting the bind-mount-options annotations
in the kube yaml was incorrect and caused k8s to throw an error
when trying to play the generated kube yaml.
Fix the annotation format to match the rules of k8s.
Signed-off-by: Urvashi Mohnani <umohnani@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>
add support for both creating a secret using yaml and mounting a secret as a volume given a yaml file.
Kubernetes secrets have a different structure than podman and therefore have to be handeled differently.
In this PR, I have introduced the basic usecases of kube secrets with more implementations like env secrets
to come!
resolves#12396
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>
Previously, if a container had healthchecks disabled in the
docker-compose.yml file and the user did a `podman inspect <container>`,
they would have an incorrect output:
```
"Healthcheck":{
"Test":[
"CMD-SHELL",
"NONE"
],
"Interval":30000000000,
"Timeout":30000000000,
"Retries":3
}
```
After a quick change, the correct output is now the result:
```
"Healthcheck":{
"Test":[
"NONE"
]
}
```
Additionally, I extracted the hard-coded strings that were used for
comparisons into constants in `libpod/define` to prevent a similar issue
from recurring.
Closes: #14493
Signed-off-by: Jake Correnti <jcorrenti13@gmail.com>
int can be 32 or 64 bit depending on the architecture.
The total memory is int64 so we have to use int64 for the value as
well otherwise we get an overflow on 32 bit systems.
Fixes#14819
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
- add test
- fix bug when a character device set in a volume as a block device
is seen as block device in _pkg/specgen/generate/kube/volume.go_.
At this stage the type does not matter much because the devices are
recreated at lower layer but the bug allowed a CharDevice volume to be
passed to lower layer as a BlockDevice.
Signed-off-by: Cosmin Tupangiu <cosmin@redhat.com>
If the RunAsUser, RunAsGroup, SupplementalGroups settings are not
overriden in the container security context, then take the value from
the pod security context.
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.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>
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>
We only need a small part of the k8s dependencies but they are the
biggest dependencies in podman by far. Moving them into podman allows us
to remove the unnecessary parts.
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
Allow users to add annotions in the podman play kube command.
This PR Also fixes the fact that annotations in the pod spec were
not being passed down to containers.
Fixes: https://github.com/containers/podman/issues/12968
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
this fixes https://github.com/containers/podman/issues/13115
the change tries to immitate k8s behavior.
when limits are not set the container's limits are all CPU and all RAM
when requests are missing then they are equal to limits
Signed-off-by: Yaron Dayagi <ydayagi@redhat.com>
The libpod/network packages were moved to c/common so that buildah can
use it as well. To prevent duplication use it in podman as well and
remove it from here.
Signed-off-by: Paul Holzinger <pholzing@redhat.com>
If the pod yaml has env from secret and condifg map but they are optional
and the secret cannot be found, don't add the env key as well
as the env value will not be found. Matches behavior with k8s.
Signed-off-by: Urvashi Mohnani <umohnani@redhat.com>
If the k8s yaml has volumes from a configmap, play kube
will now create a volume based on the data from the
configmap and volume source and set it to the right path
in the container accordingly.
Add tests for this and update some test for ENV from configmap.
Signed-off-by: Urvashi Mohnani <umohnani@redhat.com>
Vendor the latest HEAD in c/common to pull in changes for a faster
inspection of images. Previously, only the size computation was
optional, now the one for the parent image is as well.
In many cases, the parent image is not needed but it takes around 10ms
on my local machine. With this change, we cut off 10ms from many code
paths, most importantly, container creation.
[NO NEW TESTS NEEDED]
Signed-off-by: Valentin Rothberg <rothberg@redhat.com>
