Even though ociSpec.Linux.Devices is preserved when vfio_mode is VFIO,
it has not been updated correctly for coldplug scenarios. This happens
because the device info passed to the agent via CreateContainerRequest
is dropped by the Kata runtime.
This commit ensures that the device info is added to the sandbox's
device manager when vfio_mode is VFIO and coldPlugVFIO is true
(e.g., vfio-ap-cold), allowing ociSpec.Linux.Devices to be properly
updated with the device information before the container is created on
the guest.
Signed-off-by: Hyounggyu Choi <Hyounggyu.Choi@ibm.com>
...or by using a binary with additional suffix.
This allows having multiple versions of nydus-overlayfs installed on the
host, telling nydus-snapshotter which one to use while still detecting
Nydus is used.
Signed-off-by: Paul Meyer <49727155+katexochen@users.noreply.github.com>
By default, when a container is created with the `--privileged` flag,
all devices in `/dev` from the host are mounted into the guest. If
there is a block device(e.g. `/dev/dm`) followed by a generic
device(e.g. `/dev/null`)，two identical block devices(`/dev/dm`)
would be requested to the kata agent causing the agent to exit with error:
> Conflicting device updates for /dev/dm-2
As the generic device type does not hit any cases defined in `switch`，
the variable `kataDevice` which is defined outside of the loop is still
the value of the previous block device rather than `nil`. Defining `kataDevice`
in the loop fixes this bug.
Signed-off-by: cncal <flycalvin@qq.com>
gogo.nullable is the main gogo.protobuf' feature used here. Since we are
trying to remove gogo.protobuf, the first reasonable step seems to be
remove this feature. This is a core update, and it will change how the
structs are defined. I could spot only a few places using those structs,
based on make check/build.
Fixes#7723.
Signed-off-by: Beraldo Leal <bleal@redhat.com>
The kata runtime invokes removeStaleVirtiofsShareMounts after
a container is stopped to clean up the stale virtiofs file caches.
Fixes: #6455
Signed-off-by: Feng Wang <fwang@confluent.io>
Fixes: #5993
Several tests utilize linux'isms like Mounts, bindmounts, vsock etc.
Let's ensure that these are still tested on Linux, but that we also skip
these tests when on other operating systems (Darwin). This commit just
moves tests; there shouldn't be any functional test changes. While the
tests still won't be runnable on Darwin/other hosts yet, this is a necessary
step forward.
Signed-off-by: Eric Ernst <eric_ernst@apple.com>
Signed-off-by: Danny Canter <danny@dcantah.dev>
Pass SELinux policy for containers to the agent if `disable_guest_selinux`
is set to `false` in the runtime configuration. The `container_t` type
is applied to the container process inside the guest by default.
Users can also set a custom SELinux policy to the container process using
`guest_selinux_label` in the runtime configuration. This will be an
alternative configuration of Kubernetes' security context for SELinux
because users cannot specify the policy in Kata through Kubernetes's security
context. To apply SELinux policy to the container, the guest rootfs must
be CentOS that is created and built with `SELINUX=yes`.
Fixes: #4812
Signed-off-by: Manabu Sugimoto <Manabu.Sugimoto@sony.com>
The package has been deprecated as part of 1.16 and the same
functionality is now provided by either the io or the os package.
Signed-off-by: Fabiano Fidêncio <fabiano.fidencio@intel.com>
1. Implemented a rust module for operating cgroups through systemd with the help of zbus (src/agent/rustjail/src/cgroups/systemd).
2. Add support for optional cgroup configuration through fs and systemd at agent (src/agent/rustjail/src/container.rs).
3. Described the usage and supported properties of the agent systemd cgroup (docs/design/agent-systemd-cgroup.md).
Fixes: #4336
Signed-off-by: Yuan-Zhuo <yuanzhuo0118@outlook.com>
Several tests in kata_agent_test.go create /tmp/mountPoint as a dummy
directory to mount. This is not cleaned up after the test. Although it
is in /tmp, that's still a little messy and can be confusing to a user.
In addition, because it uses the same name every time, it allows for one
run of the test to interfere with the next.
Use the built in t.TempDir() to use an automatically named and deleted
temporary directory instead.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The fsGroup will be specified by the fsGroup key in
the direct-assign mountinfo metadate field.
This will be set when invoking the kata-runtime
binary and providing the key, value pair in the metadata
field. Similarly, the fsGroupChangePolicy will also
be provided in the mountinfo metadate field.
Adding an extra fields FsGroup and FSGroupChangePolicy
in the Mount construct for container mount which will
be populated when creating block devices by parsing
out the mountInfo.json.
And in handleDeviceBlockVolume of the kata-agent client,
it checks if the mount FSGroup is not nil, which
indicates that fsGroup change is required in the guest,
and will provide the FSGroup field in the protobuf to
pass the value to the agent.
Fixes#4018
Signed-off-by: Yibo Zhuang <yibzhuang@gmail.com>
The directory created by `T.TempDir` is automatically removed when the
test and all its subtests complete.
This commit also updates the unit test advice to use `T.TempDir` to
create temporary directory in tests.
Fixes: #3924
Reference: https://pkg.go.dev/testing#T.TempDir
Signed-off-by: Eng Zer Jun <engzerjun@gmail.com>
Currently, the block driver option is specifed by hard coding, maybe it
is better to use const string variables instead of hard coded strings.
Another modification is to remove duplicate consts for virtio driver in
manager.go.
Fixes: #3321
Signed-off-by: Jason Zhang <zhanghj.lc@inspur.com>
During the container creation, it will parse the mount info file
of the direct assigned volumes and update the in memory mount object.
Fixes: #3454
Signed-off-by: Feng Wang <feng.wang@databricks.com>
With the Linux implementation of the FilesystemSharer interface, we can
now remove all host filesystem sharing code from kata_agent and keep it
where it belongs: sandbox.go.
Signed-off-by: Samuel Ortiz <s.ortiz@apple.com>
in TestHandleHugepages. On s390x, hugepage sizes must be set at boot, so
test with any that are present (default is 1M).
Depends-on: github.com/kata-containers/kata-containers#3770
Fixes: #3763
Signed-off-by: Jakob Naucke <jakob.naucke@ibm.com>
Pulling image is the most time-consuming step in the container lifecycle. This PR
introduse nydus to kata container, it can lazily pull image when container start. So it
can speed up kata container create and start.
Fixes#2724
Signed-off-by: luodaowen.backend <luodaowen.backend@bytedance.com>
Today the hypervisor code in vc relies on persist pkg for two things:
1. To get the VM/run store path on the host filesystem,
2. For type definition of the Load/Save functions of the hypervisor
interface.
For (1), we can simply remove the store interface from the hypervisor
config and replace it with just the path, since this is all we really
need. When we create a NewHypervisor structure, outside of the
hypervisor, we can populate this path.
For (2), rather than have the persist pkg define the structure, let's
let the hypervisor code (soon to be pkg) define the structure. persist
API already needs to call into hypervisor anyway; let's allow us to
define the structure.
We'll probably want to look at following similar pattern for other parts
of vc that we want to make independent of the persist API.
In doing this, we started an initial hypervisors pkg, to hold these
types (avoid a circular dependency between virtcontainers and persist
pkg). Next step will be to remove all other dependencies and move the
hypervisor specific code into this pkg, and out of virtcontaienrs.
Signed-off-by: Eric Ernst <eric_ernst@apple.com>
There are two types packages under virtcontainers, and the
virtcontainers/pkg/types has a few codes, merging them into
one can make it easy for outstanding and using types package.
Fixes: #3031
Signed-off-by: bin <bin@hyper.sh>
Currently constrainGRPCSpec always removes VFIO devices from the OCI
container spec which will be used for the inner container. For
upcoming support for VFIO devices in DPDK usecases we'll need to not
do that.
As a preliminary to that, add an extra parameter to the function to
control whether or not it will remove the VFIO devices from the spec.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
"constraint" is a noun, "constrain" is the associated verb, which makes
more sense in this context.
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Fix the mismatch bring by the upgrading of vendor of containerd,
cgroup and runtime spec.
Fixes: #1441
Signed-off-by: fupan.lfp <fupan.lfp@antgroup.com>
If for any reason there's an error when trying to setup the sandbox
bindmounts, make sure we roll back any mounts already created when
setting up the sandbox.
Without this, we'd leave shared directory mount and potentially
sandbox-bindmounts on the host.
Fixes: #1895
Signed-off-by: Eric Ernst <eric_ernst@apple.com>
For k8s emptyDir volume, a specific fsGroup would
be set for it, thus runtime should pass this fsGroup
for EphemeralStorage to guest and set it properly on
the emptyDir volume in guest.
Fixes: #1580
Signed-off-by: fupan.lfp <fupan.lfp@antfin.com>
Currently runtime and agent special case virtio-blk devices under clh,
ostensibly because the PCI address information is not available in that
case.
In fact, cloud-hypervisor's VmAddDiskPut API does return a PciDeviceInfo,
which includes a PCI address. That API is broken, because PCI addressing
depends on guest (firmware or OS) actions that the hypervisor won't know
about. clh only gets away with this because it only uses a single PCI root
and never uses PCI bridges, in which case the guest addresses are
accurately predictable: they always have domain and bus zero.
Until https://github.com/kata-containers/kata-containers/pull/1190, Kata
couldn't handle PCI addressing unless there was exactly one bridge, which
might be why this was actually special-cased for clh.
With #1190 merged, we can handle more general PCI paths, and we can derive
a trivial (one element) PCI path from the information that the clh API
gives us. We can use that to remove this special case.
fixes#1431
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
The property name make newcomers confused when reading code.
Since in Kata Containers 2.0 there will only be one type of store,
so it's safe to replace it by `store` simply.
Fixes: #1660
Signed-off-by: bin <bin@hyper.sh>
For k8s emptyDir volume, a specific fsGroup would
be set for it, thus runtime should pass this fsGroup
to guest and set it properly on the emptyDir volume
in guest.
Fixes: #1580
Signed-off-by: fupan.lfp <fupan.lfp@antfin.com>
It turns out we have managed to break the static checker in many
difference places with the absence of static checker in github action.
Let's fix them while enabling static checker in github actions...
Signed-off-by: Peng Tao <bergwolf@hyper.sh>
