Currently, even when using devmapper, if the VMM supports virtio-fs /
virtio-9p, that's used to share a few files between the host and the
guest.
This *needed*, as we need to share with the guest contents like secrets,
certificates, and configurations, via Kubernetes objects like configMaps
or secrets, and those are rotated and must be updated into the guest
whenever the rotation happens.
However, there are still use-cases users can live with just copying
those files into the guest at the pod creation time, and for those
there's absolutely no need to have a shared filesystem process running
with no extra obvious benefit, consuming memory and even increasing the
attack surface used by Kata Containers.
For the case mentioned above, we should allow users, making it very
clear which limitations it'll bring, to run Kata Containers with
devmapper without actually having to use a shared file system, which is
already the approach taken when using Firecracker as the VMM.
Fixes: #7207
Signed-off-by: Fabiano Fidêncio <fabiano.fidencio@intel.com>
This PR adds memory foot print metrics to tests/metrics/density
folder.
Intentionally, each test exits w/ zero in all test cases to ensure
that tests would be green when added, and will be enabled in a
subsequent PR.
A workflow matrix was added to define hypervisor variation on
each job, in order to run them sequentially.
The launch-times test was updated to make use of the matrix
environment variables.
Fixes: #7066
Signed-off-by: David Esparza <david.esparza.borquez@intel.com>
This PR adds the word function before the function names in order to have
uniformity across the script as some are using this and some are not.
Fixes#7196
Signed-off-by: Gabriela Cervantes <gabriela.cervantes.tellez@intel.com>
Vfio support introduce build error on AArch64. Remove arch related
annotation can avoid this error.
Fixes: #7187
Signed-off-by: Jianyong Wu <jianyong.wu@arm.com>
The failure mainly caused by the encoded volume path and
the mount/src. As the src will be validated with stat,but
it's not a full path and encoded, which causes the stat
mount source failed.
Fixes: #7186
Signed-off-by: alex.lyn <alex.lyn@antgroup.com>
This PR adds link to the unreference docs in the cmd path to make
them more discoverable.
Signed-off-by: Gabriela Cervantes <gabriela.cervantes.tellez@intel.com>
This PR adds checkmetrics makefile which is used to process the
metrics json results files.
Fixes#7172
Signed-off-by: Gabriela Cervantes <gabriela.cervantes.tellez@intel.com>
This PR adds time tests documentation reference in the general README
for kata metrics.
Signed-off-by: Gabriela Cervantes <gabriela.cervantes.tellez@intel.com>
This PR adds boot time metrics documentation for kata metrics tests.
Fixes#7170
Signed-off-by: Gabriela Cervantes <gabriela.cervantes.tellez@intel.com>
Unlike the previous usage which requires creating
/dev/xxx by mknod on the host, the new approach will
fully utilize the DirectVolume-related usage method,
and pass the spdk controller to vmm.
And a user guide about using the spdk volume when run
a kata-containers. it can be found in docs/how-to.
Fixes: #6526
Signed-off-by: alex.lyn <alex.lyn@antgroup.com>
This PR adds the metrics documentation as a general reference in the
main README for kata containers.
Signed-off-by: Gabriela Cervantes <gabriela.cervantes.tellez@intel.com>
This PR adds the checkmetrics scripts that will be used for the kata metrics CI.
Fixes#7160
Signed-off-by: Gabriela Cervantes <gabriela.cervantes.tellez@intel.com>
We have GH configured so that manual approval is required for CI runs
triggered by outside contributors. However, because CI is triggered by
the `pull_request_target` event, this setting isn't being honored
(see [1]). This means that an attacker could trivially extracts secrets
by submitting a PR.
This change aims to mititgate this issue by preventing PRs from
triggering CI unless the `ok-to-test` label is set.
Note: For further context, we use the `pull_request_target` event and
manually check out the PR branch because it is the only way to both
access secrets and test incoming code changes.
Fixes: #7163
[1]: https://docs.github.com/en/actions/managing-workflow-runs/approving-workflow-runs-from-public-forks
Signed-off-by: Aurélien Bombo <abombo@microsoft.com>
This PR adds a general metrics introduction documentation for the kata CI.
Fixes#7157
Signed-off-by: Gabriela Cervantes <gabriela.cervantes.tellez@intel.com>
When running on a VM, the kernel parameter "unrestricted_guest" for
kernel module "kvm_intel" is not required. So, return success when running
on a VM without checking value of this kernel parameter.
Signed-off-by: Archana Shinde <archana.m.shinde@intel.com>
Implement functionality to add to the env output if the host is capable
of running a VM.
Fixes: #6727
Signed-off-by: Archana Shinde <archana.m.shinde@intel.com>
