CRIU supports to leave processes running after checkpointing:
-R|--leave-running leave tasks in running state after checkpoint
runc also support to leave containers running after checkpointing:
--leave-running leave the process running after checkpointing
With this commit the support to leave a container running after
checkpointing is brought to Podman:
--leave-running, -R leave the container running after writing checkpoint to disk
Now it is possible to checkpoint a container at some point in time
without stopping the container. This can be used to rollback the
container to an early state:
$ podman run --tmpfs /tmp --name podman-criu-test -d docker://docker.io/yovfiatbeb/podman-criu-test
$ curl 10.88.64.253:8080/examples/servlets/servlet/HelloWorldExample
3
$ podman container checkpoint -R -l
$ curl 10.88.64.253:8080/examples/servlets/servlet/HelloWorldExample
4
$ curl 10.88.64.253:8080/examples/servlets/servlet/HelloWorldExample
5
$ podman stop -l
$ podman container restore -l
$ curl 10.88.64.253:8080/examples/servlets/servlet/HelloWorldExample
4
So after checkpointing the container kept running and was stopped after
some time. Restoring this container will restore the state right at the
checkpoint.
Signed-off-by: Adrian Reber <areber@redhat.com>
For upcoming changes to the Checkpoint() functions this commit switches
checkpoint options from a boolean to a struct, so that additional
options can be passed easily to Checkpoint() without changing the
function parameters all the time.
Signed-off-by: Adrian Reber <areber@redhat.com>
Also, don't use $PORT. These are too generic.
Make sure to read $LOGNAME _after_ the config.
Prefix all the remote variables with PODMAN_
Signed-off-by: Anders F Björklund <anders.f.bjorklund@gmail.com>
* Improve error messages from argparse Actions
* Silence more pylint errors when supporting a given API
* Refactor BooleanAction to support lower and mixed case input
* Remove spurious print()
Signed-off-by: Jhon Honce <jhonce@redhat.com>
Use github.com/google/shlex for splitting commands instead of splitting
at whitespaces. This way, we avoid accidentally splitting single string
arguments into mutliple ones.
Signed-off-by: Valentin Rothberg <vrothberg@suse.com>
The tests can be filter by --focus and --skip to fit different test
target. Also be able to set global options and cmd options by export
it to ENV to fit different test matrix.
Signed-off-by: Yiqiao Pu <ypu@redhat.com>
pypodman does not currently support the version command. We want to
have as close to the same functionality between podman and pypodman,
so adding this command.
Also had to fix some validate errors.
Signed-off-by: Daniel J Walsh <dwalsh@redhat.com>
At scale, it appears that we sometimes hit the 1000ms timeout to create
the PID file when a container is created or executed.
Increasing the value to 60s should help when running a lot of containers
in heavy-loaded environment.
Related #1495Fixes#1816
Signed-off-by: Emilien Macchi <emilien@redhat.com>
Engineers get testing status via their PR's but another round of testing
happens post-merge, without any direct feedback. Fix this in a small
way, by adding a dynamic status badge on the front-page. If this
turns red, it means Cirrus-CI testing of the master branch failed
for some reason.
Nearly always it's something harmless, but once and a while, this
catches really nasty problems caused by merge-sequence issues.
Having that feedback on the front page ensures the right people will
eventually get called into action.
Signed-off-by: Chris Evich <cevich@redhat.com>
Previously it was required to call the verify, unit, and integration
scripts in order to build/install dependencies, and libpod. This
wastes time during the (optional) system-testing, since the
actual unit/integration testing is also happening in parallel.
Consolidate only the distribution-specific build steps into the
system-testing script. This way, only the required steps are performed
in their respective (parallel) tasks.
Signed-off-by: Chris Evich <cevich@redhat.com>
Previously, several magic strings were in place to affect cirrus-ci
operations. Two were buried within scripts. One to optionally
execute system-tests within a PR. Another to avoid re-building
cache-images upon every merge.
Move these magic strings out into the open, buy locating their
logic up-front in the ``.cirrus.yml`` file. This improves
readability and reduces surprise/astonishment at runtime.
Signed-off-by: Chris Evich <cevich@redhat.com>
Having a standardized image allows uniform application of format and
lint checking across multiple host platforms. This ensures all
contributors and disparate CI systems to play by a common set of basic
rules. It also makes it easier to maintain the common rules over-time.
Signed-off-by: Chris Evich <cevich@redhat.com>
Adrian Reber
OpenShift Merge Robot
Giuseppe Scrivano
Anders F Björklund
Jhon Honce
Valentin Rothberg
Yiqiao Pu
Daniel J Walsh
Matthew Heon
TomSweeneyRedHat
Emilien Macchi
Chris Evich