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>
(memory-star, i.e., several memory options) that didn't get
included in #15276. Most of them are shoo-ins; the two in
container-clone and pod-clone deserve special attention
because of the "If unspecified" wording.
Signed-off-by: Ed Santiago <santiago@redhat.com>
Went with the podman-run version, where the "example" is
in the option template as per our guidelines.
I could not include the network- or volume-create
man pages, nor podman build.
Signed-off-by: Ed Santiago <santiago@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>
Only for podman-create and -run, unfortunately: all the
others are too different, and can't easily be combined.
I went with the podman-run version because it was most
recently updated in #5192.
Signed-off-by: Ed Santiago <santiago@redhat.com>
Would've been an easy one, except I decided to fix the text
to conform to our guidelines. I haven't been doing this,
but in this case it's only two man pages and the text is
short enough to make for easy review.
Signed-off-by: Ed Santiago <santiago@redhat.com>
Only applicable to podman-create and -run. I went with the -run
version because it is cleaner and more recently updated.
Signed-off-by: Ed Santiago <santiago@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 two new options to the keep-id user namespace option:
- uid: allow to override the UID used inside the container.
- gid: allow to override the GID used inside the container.
For example, the following command will map the rootless user (that
has UID=0 inside the rootless user namespace) to the UID=11 inside the
container user namespace:
$ podman run --userns=keep-id:uid=11 --rm -ti fedora cat /proc/self/uid_map
0 1 11
11 0 1
12 12 65525
Closes: https://github.com/containers/podman/issues/15294
Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
Whew! This one started off identical everywhere, but the version
in podman-run got fixed in #1380, then again in #5192, with no
corresponding fixes to any of the other man pages.
I went with the podman-run version, with a small change in wording.
Signed-off-by: Ed Santiago <santiago@redhat.com>
Only between podman-create and -run. (podman-build is too
different). I went with the podman-run version.
Signed-off-by: Ed Santiago <santiago@redhat.com>
--dns-opt and --dns-search, but only in podman-create and -run.
Went with the -run version in both cases; --dns-opt remained
unchanged, but in --dns-search I changed 'and' to 'with'.
Did not consolidate podman-build or podman-pod-create: too
different.
Signed-off-by: Ed Santiago <santiago@redhat.com>
NOTE: This does not edit the use-sigstore-attachments value
in registries.d, similarly to how (podman image trust set) didn't
set the lookaside paths for simple signing.
Signed-off-by: Miloslav Trmač <mitr@redhat.com>
podman-logs and podman-pod-logs. Most of these were already
identical, needing no review. Exceptions:
--follow : needed some container/pod tweaking. This is the
only one that really needs careful review.
--names : I went with the longer version
Note that podman-events has --since and --until options too, but
those are too different to be combined here.
Signed-off-by: Ed Santiago <santiago@redhat.com>
This is not an easy one to review, sorry.
I went with the version from podman-create. The differences
against podman-run are subtle: apostrophes, whitespace, and
the arg description in the '####' line. Suggestion for review:
run hack/markdown-preprocess-review, then after you finish
with that, cd /tmp/markdown<TAB>/ipc and use your favorite
two-file diff tool to compare podman-run* against zzz*.
I did not even try to combine the podman-build one; that one
is too different.
Signed-off-by: Ed Santiago <santiago@redhat.com>
Two versions: one for container-related commands, one for pods.
The container one is easy: all versions matched, so I made no
changes.
The pod one is hard to review. I went with the pod-clone
version because the pod-create one looks suspicious: it
talks in terms of containers, not pods. It's possible
that I've got it wrong, and that these two cannot be
combined, so please review very carefully. I strongly
recommend using hack/markdown-preprocess-review for this one.
Signed-off-by: Ed Santiago <santiago@redhat.com>
I chose the version from podman-run because it is the most
up-to-date, and most correct wrt current syntax guidelines.
Differences are in arg description, language, and asterisks.
Signed-off-by: Ed Santiago <santiago@redhat.com>
Allow end users to preprocess default environment variables before
injecting them into container using `--env-merge`
Usage
```
podman run -it --rm --env-merge some=${some}-edit --env-merge
some2=${some2}-edit2 myimage sh
```
Closes: https://github.com/containers/podman/issues/15288
Signed-off-by: Aditya R <arajan@redhat.com>
I chose the version from podman-create. (This is unusual. podman-run
tends to have the better-maintained, more up-to-date version.)
Signed-off-by: Ed Santiago <santiago@redhat.com>
A NOP option. I chose the container word, of course, and the
word 'option' instead of 'flag'. I also hyphenated where needed.
I'm choosing to eliminate the "not on remote" text, because I
don't think it's true: podman-remote happily accepts that
flag on all those commands, including build. (It's marked
as hidden on build, but still accepted).
Signed-off-by: Ed Santiago <santiago@redhat.com>
Only on podman create and run: the --cpus option on container-clone
and pod-clone can probably be combined, but maybe later. pod-create
has unique wording that can't be combined.
This is a freebie to review: the text in both files was already
identical, and I made no changes to it. hack/markdown-preprocess-review
will agree, and show you no diffs, because there are none worth
seeing.
Signed-off-by: Ed Santiago <santiago@redhat.com>
