Add cdi devices including ContainerDevice definition and
annotation_container_device method to annotate vfio device
in OCI Spec annotations which is inserted into Guest with
its mapping of vendor-class and guest pci path.
Fixes#10145
Signed-off-by: Alex Lyn <alex.lyn@antgroup.com>
We need vfio device's properties device, vendor and
class, but we can only get property device and vendor.
just extend it with class is ok.
Fixes#10145
Signed-off-by: Alex Lyn <alex.lyn@antgroup.com>
As we don't have any CI, nor maintainer to keep ACRN code around, we
better have it removed than give users the expectation that it should or
would work at some point.
Signed-off-by: Fabiano Fidêncio <fabiano@fidencio.org>
This change technically affects the path for enabled guest selinux as well,
however since this is not implemented in runtime-rs anyway nothing should
break. When guest selinux support is added this change will come handy.
Signed-off-by: Pavel Mores <pmores@redhat.com>
If guest selinux is off the runtime has to ensure that container OCI spec
contains no selinux labels for the container rootfs and process. Failure
to do so causes kata agent to try and apply the labels which fails since
selinux is not enabled in guest, which in turn causes container launch
to fail.
This is largely inspired by golang runtime(*) with a slight deviation
in ordering of checks. This change simply checks the disable_guest_selinux
config setting and if it's true it clears both rootfs and process label if
necessary. Golang runtime, on the other hand, seems to first check if
process label is non-empty and only then it checks the config setting,
meaning that if process label is empty the rootfs label is not reset
even if it's non-empty. Frankly, this looks like a potential bug though
probably unlikely to manifest since it can be assumed that the labels are
either both empty, or both non-empty.
(*) 4fd4b02f2e/src/runtime/virtcontainers/kata_agent.go (L1005)
Signed-off-by: Pavel Mores <pmores@redhat.com>
In order to handle the setting we have to first parse it and make its
value available to the rest of the program.
The yes() function is added to comply with serde which seems to insist
on default values being returned from functions. Long term, this is
surely not the best place for this function to live, however given that
this is currently the first and only place where it's used it seems
appropriate to put it near its use. If it ends up being reused elsewhere
a better place will surely emerge.
Signed-off-by: Pavel Mores <pmores@redhat.com>
kata-shim was not reporting `inactive_file` in memory stat.
This memory is deducted by containerd when calculating the size of container working set, as it can be paged out by the operating
system under memory pressure. Without reporting `inactive_file`, containerd will over report container memory usage.
[Here](https://github.com/containerd/containerd/blob/v1.7.22/pkg/cri/server/container_stats_list_linux.go#L117) is where containerd
deducts `inactive_file` from memory usage.
Note that kata-shim correctly reports `total_inactive_file` for cgroup v1, but this was not implemented for cgroup v2.
This commit:
- Adds code in kata-shim to report "inactive_file" memory for cgroup v2
- Implements reporting of all available cgroup v2 memory stats to containerd
- Uses defensive coding to avoid assuming existence of any memory.stat fields
The list of available cgroup v2 memory stats defined by containerd can be found
[here](https://pkg.go.dev/github.com/containerd/cgroups/v2/stats#MemoryStat).
Fixes#10280
Signed-off-by: Alex Man <alexman@stripe.com>
This patch adds support to call kata agents SetPolicy
API. Also adds tests for SetPolicy API using agent-ctl.
Fixes#9711
Signed-off-by: Sumedh Alok Sharma <sumsharma@microsoft.com>
agent built with policy feature initializes the policy engine using a
policy document from a default path, which is installed & linked during
UVM rootfs build. This commit adds support to provide a default agent
policy as environment variable.
This targets development/testing scenarios where kata-agent
is wanted to be started as a local process.
Fixes#10301
Signed-off-by: Sumedh Alok Sharma <sumsharma@microsoft.com>
Add two parameters for enabling cosign signature image verification.
- `enable_signature_verification`: to activate signature verification
- `image_policy`: URI of the image policy
config
Signed-off-by: Xynnn007 <xynnn@linux.alibaba.com>
new version of the anyhow crate has changed the backtrace capture thus
unit tests of kata-agent that compares a raised error with an expected
one would fail. To fix this, we need only panics to have backtraces,
thus set `RUST_BACKTRACE=1` and `RUST_LIB_BACKTRACE=0` for tests due to
document
https://docs.rs/anyhow/latest/anyhow/
Signed-off-by: Xynnn007 <xynnn@linux.alibaba.com>
It's a prerequisite PR to make built-in vmm dragonball compilation
options configurable.
Extract TAP device-related code from dragonball's dbs_utils into a
separate library within the runtime-rs hypervisor module.
To enhance functionality and reduce dependencies, the extracted code
has been reimplemented using the libc crate and the ifreq structure.
Fixes#10182
Signed-off-by: sidney chang <2190206983@qq.com>
Remove the recently added default UID/GID values, because the genpolicy
design is to initialize those fields before this new code path gets
executed.
Signed-off-by: Dan Mihai <dmihai@microsoft.com>
Some container images are configured such that the user (and group)
under which their entrypoint should run is not a number (or pair of
numbers), but a user name.
For example, in a Dockerfile, one might write:
> USER 185
indicating that the entrypoint should run under UID=185.
Some images, however, might have:
> RUN groupadd --system --gid=185 spark
> RUN useradd --system --uid=185 --gid=spark spark
> ...
> USER spark
indicating that the UID:GID pair should be resolved at runtime via
/etc/passwd.
To handle such images correctly, read through all /etc/passwd files in
all layers, find the latest version of it (i.e., the top-most layer with
such a file), and, in so doing, ensure that whiteouts of this file are
respected (i.e., if one layer adds the file and some subsequent layer
removes it, don't use it).
Signed-off-by: Hernan Gatta <hernan.gatta@opaque.co>
Disabling the UID Policy rule was a workaround for #9928. Re-enable
that rule here and add a new test/CI temporary workaround for this
issue. This new test workaround will be removed after fixing #9928.
Signed-off-by: Dan Mihai <dmihai@microsoft.com>
kata-agent incorrectly reports CPU time for cgroup v2, causing 1000x underreporting.
For cgroup v2, kata-agent reads the cpu.stat file, which reports the time consumed by the processes in the cgroup in µs.
However, there was a bug in kata-agent where it returned this value in µs without converting it to ns.
This commit adds the necessary µs to ns conversion for cgroup v2, aligning it with v1 behavior and kata-shim's expectations.
This fixes#10278
Signed-off-by: Alex Man <alexman@stripe.com>
ITA stands for Intel Trust Authority, which is in the process to being
renamed to ITTS (Intel Tiber Trust Services).
As we've bumped guest-components on trustee, let's make sure we also
bump image-rs to the commit that brings ITA support in:
* 1db6c3a876
The reason we need to bump the dependency here is to avoid kbs_protocol
mismatch between the version used by the agent and the trustee one.
Signed-off-by: Fabiano Fidêncio <fabiano@fidencio.org>
In the existing implementation for the CopyFile subcommand,
- cmd line argument list is too long, including various metadata information.
- in case of a regular file, passing the actual data as bytes stream adds to the size and complexity of the input.
- the copy request will fail when the file size exceeds that of the allowed ttrpc max data length limit of 4Mb.
This change refactors the CopyFile handler and modifies the input to a known 'source' 'destination' syntax.
Fixes#9708
Signed-off-by: Sumedh Alok Sharma <sumsharma@microsoft.com>
It will panic when users do GPU vfio passthrough with cdi in runtime.
The root cause is that CustomSpec.Annotations is nil when new element
added.
To address this issue, initialization is introduced when it's nil.
Fixes#10266
Signed-off-by: Alex Lyn <alex.lyn@antgroup.com>
Move device code with nvdimm driver to nvdimm_device_handler, including
nvdimm device and pmem device.
Signed-off-by: ChengyuZhu6 <chengyu.zhu@intel.com>
Removed the `StorageHandlerManager` struct and its associated implementations and
introduced a type alias `StorageHandlerManager` for `HandlerManager` to simplify the code.
The new type alias maintains the same functionality while reducing redundancy.
Signed-off-by: ChengyuZhu6 <chengyu.zhu@intel.com>
Introduced `HandlerManager` struct to manage registered handlers, which will be used to storage and device management for kata-agent.
Signed-off-by: ChengyuZhu6 <chengyu.zhu@intel.com>
I know right now we're always passing a value for that, but this doesn't
really have to be set unless attestation is used. Thus, let's also omit
it in case it's empty.
Signed-off-by: Fabiano Fidêncio <fabiano@fidencio.org>
This is a quick and simple pre-req for supporting initData, which will
take advantage of the mrconfigid in the TDX case.
While already adding mrconfigid, which is hardcoded empty right now,
let's do the same for mrowner and mrownerconfig, and leave it prepared
for future expansions.
Signed-off-by: Fabiano Fidêncio <fabiano@fidencio.org>
The reason we're relying on yet another function to do so is because the
TDX object will be used in its qom / qapi json format.
Signed-off-by: Fabiano Fidêncio <fabiano@fidencio.org>
This error is specific to SNP platforms, so let's make sure we only
error this out when an SNP platform is used.
Signed-off-by: Fabiano Fidêncio <fabiano@fidencio.org>
Under normal circumstances, the virtual machine only requests memory
from the host and does not actively release it back to host when it is
no longer needed, leading to a waste of memory resources.
Free page reporting is a sub-feature of virtio-balloon. When this
feature is enabled, the Linux guest kernel will send information about
released pages to dragonball via virtio-balloon, and dragonball will
then release these pages.
This commit adds an option enable_balloon_f_reporting to runtime-rs.
When this option is enabled, runtime-rs will insert a virtio-balloon
device with the f_reporting option enabled during the Dragonball virtual
machine startup.
Signed-off-by: Hui Zhu <teawater@antgroup.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>
Move `unseal_env` and `secure_mount` functions on the global `CDH_CLIENT` instance to access the CDH client.
Signed-off-by: ChengyuZhu6 <chengyu.zhu@intel.com>
Introduced a global `CDH_CLIENT` instance to hold the cdh client and
implemented `init_cdh_client` function to initialize the cdh client if not already set.
Fixes: #10231
Signed-off-by: ChengyuZhu6 <chengyu.zhu@intel.com>
- Added `driver_types` method to `StorageHandler` trait to return driver
types managed by each handler.
- Implemented driver_types method for all storage handlers.
- Updated `STORAGE_HANDLERS` initialization to use `driver_types` for
handler registration.
Fixes: #10242
Signed-off-by: ChengyuZhu6 <chengyu.zhu@intel.com>
- Updated the `add_handler` function in `StorageHandlerManager` to accept a slice of IDs (`&[&str]`) instead of a single ID (`&str`).
This change allows a single handler to be registered for multiple storage device types.
- Refactored calls to `add_handler` in `Storage` of kata-agent to use the new function, passing arrays of storage drivers instead of single driver.
Signed-off-by: ChengyuZhu6 <chengyu.zhu@intel.com>
This commit includes a fix for pulling an image on platforms that do not
support xattr.
Some platforms/file-systems do not support xattrs, this would make the
image pull fail because of failing to set xattr. This commit will check
whether the target path supports xattr. If yes, the unpacking will
maintain xattrs; if not, it will not set xattrs.
Signed-off-by: Archana Shinde <archana.m.shinde@intel.com>
slog's is_enabled() is documented as:
- "best effort", and
- Sometime resulting in false positives.
Use AGENT_CONFIG.log_level.as_usize() instead, to avoid those false
positives.
Signed-off-by: Dan Mihai <dmihai@microsoft.com>
PhysicalEndpoint unbinds its VF interface and rebinds it as a VFIO device,
then cold-plugs the VFIO device into the guest kernel.
When `cold_plug_vfio` is set to "no-port", cold-plugging the VFIO device
will fail.
This change checks if `cold_plug_vfio` is enabled before creating PhysicalEndpoint
to avoid unnecessary VFIO rebind operations.
Fixes: #10162
Signed-off-by: Lei Huang <leih@nvidia.com>
This patch re-generates the client code for Cloud Hypervisor v41.0.
Note: The client code of cloud-hypervisor's OpenAPI is automatically
generated by openapi-generator.
Fixes: #10203
Signed-off-by: Bo Chen <chen.bo@intel.com>
This commit allows `cdh_api_timeout` to be configured from the configuration file.
The configuration is commented out with specifying a default value (50s) because
the default value is configured in the agent.
Signed-off-by: Hyounggyu Choi <Hyounggyu.Choi@ibm.com>
This commit updates CDH_API_TIMEOUT to use AGENT_CONFIG.cdh_api_timeout
and changes it from a `const` to `lazy_static` to accommodate runtime-determined values.
Signed-off-by: Hyounggyu Choi <Hyounggyu.Choi@ibm.com>
To make the `cdh_api_timeout` variable configurable, it has been added to
the `AgentConfig` structure.
This change includes storing the variable as a `time::Duration` type and
generalizing the existing `hotplug_timeout` code to handle both timeouts.
Signed-off-by: Hyounggyu Choi <Hyounggyu.Choi@ibm.com>
* genpolicy: deny UpdateEphemeralMountsRequest
Deny UpdateEphemeralMountsRequest by default, because paths to
critical Guest components can be redirected using such request.
Signed-off-by: Dan Mihai <Daniel.Mihai@microsoft.com>
Add bind mounts for volumes defined by docker container images, unless
those mounts have been defined in the input K8s YAML file too.
For example, quay.io/opstree/redis defines two mounts:
/data
/node-conf
Before these changes, if these mounts were not defined in the YAML file
too, the auto-generated policy did not allow this container image to
start.
Signed-off-by: Dan Mihai <dmihai@microsoft.com>
Improved error handling to provide clearer feedback on request failures.
For example:
Improve createcontainer request timeout error message from
"Error: failed to create containerd task: failed to create shim task:context deadline exceed"
to "Error: failed to create containerd task: failed to create shim task: CreateContainerRequest timed out: context deadline exceed".
Fixes: #10173 -- part II
Signed-off-by: ChengyuZhu6 <chengyu.zhu@intel.com>
Container/Sandbox clean up should not fail if root FS is not mounted.
This PR handles EINVAL errors when umount2 is called.
Fixes: #10166
Signed-off-by: Silenio Quarti <silenio_quarti@ca.ibm.com>
Introduces `secure_mount` API in the cdh. It includes:
- Adding the `SecureMountServiceClient`.
- Implementing the `secure_mount` function to handle secure mounting requests.
- Updating the confidential_data_hub.proto file to define SecureMountRequest and SecureMountResponse messages
and adding the SecureMountService service.
Signed-off-by: ChengyuZhu6 <chengyu.zhu@intel.com>
renames the sealed_secret.proto file to confidential_data_hub.proto and
updates the corresponding API namespace from sealed_secret to confidential_data_hub.
Signed-off-by: ChengyuZhu6 <chengyu.zhu@intel.com>
Hooks are executed on the host, so we don't expect to run hooks and thus
require that no hook paths are set.
Additional Kernel modules expand the attack surface, so require that
none are set. If a use case arises, modules should be allowlisted via
settings.
Signed-off-by: Markus Rudy <mr@edgeless.systems>
CopyFile is invoked by the host's FileSystemShare.ShareFile function,
which puts all files into directories with a common pattern. Copying
files anywhere else is dangerous and must be prevented. Thus, we check
that the target path prefix matches the expected directory pattern of
ShareFile, and that this directory is not escaped by .. traversal.
Signed-off-by: Markus Rudy <mr@edgeless.systems>
when use debug console, the shell run in child process may not be
exited, in some scenes.
eg. directly Ctrl-C in the host to terminate the kata-runtime process,
that will block the task handling the console connection，while waiting
for the child to exit.
Signed-off-by: soulfy <liukai254@jd.com>
Initialize the trusted stroage when the device is defined
as "/dev/trusted_store" with shell script as first step.
Signed-off-by: ChengyuZhu6 <chengyu.zhu@intel.com>
Co-authored-by: Wang, Arron <arron.wang@intel.com>
After enable secure storage integrity for trusted storage, the initialize
time will take more times, the default value will be NOT enabled but add this config to
allow the user to enable if they care more strict security.
Fixes: #8142
Signed-off-by: ChengyuZhu6 <chengyu.zhu@intel.com>
Co-authored-by: Wang, Arron <arron.wang@intel.com>
Our code for handling images being pulled inside the guest relies on a
containerType ("sandbox" or "container") being set as part of the
container annotations, which is done by the CRI Engine being used, and
depending on the used CRI Engine we check for a specfic annotation
related to the image-name, which is then passed to the agent.
However, when running kata-containers without kubernetes, specifically
when using `nerdctl`, none of those annotations are set at all.
One thing that we can do to allow folks to use `nerdctl`, however, is to
take advantage of the `--label` flag, and document on our side that
users must pass `io.kubernetes.cri.image-name=$image_name` as part of
the label.
By doing this, and changing our "fallback" so we can always look for
such annotation, we ensure that nerdctl will work when using the nydus
snapshotter, with kata-containers, to perform image pulling inside the
pod sandbox / guest.
Signed-off-by: Fabiano Fidêncio <fabiano.fidencio@intel.com>
Provides a test runner that generates a policy and validates it
with canned requests. The initial set of test cases is mostly for
illustration and will be expanded incrementally.
In order to enable both cross-compilation on Ubuntu test runners as well
as native compilation on the Alpine tools builder, it is easiest to
switch to the vendored openssl-src variant. This builds OpenSSL from
source, which depends on Perl at build time.
Adding the test to the Makefile makes it execute in CI, on a variety of
architectures. Building on ppc64le requires a newer version of the
libz-ng-sys crate.
Fixes: #10061
Signed-off-by: Markus Rudy <mr@edgeless.systems>
cargo clippy has two new warnings that need addressing:
- assigning_clones
These were fixed by clippy itself.
- suspicious_open_options
I added truncate(false) because we're opening the file for reading.
Signed-off-by: Markus Rudy <mr@edgeless.systems>
This parameter has been deprecated for a long time and QEMU 9.1.0 finally removes it.
Fixes: kata-containers#10112
Signed-off-by: Tom Dohrmann <erbse.13@gmx.de>
- Add --version flag to the genpolicy tool that prints the current
version
- Add version.rs.in template to store the version information
- Update makefile to autogenerate version.rs from version.rs.in
- Add license to Cargo.toml
Signed-off-by: Saul Paredes <saulparedes@microsoft.com>
1. Use the new value of AllowRequestsFailingPolicy after setting up a
new Policy. Before this change, the only way to enable
AllowRequestsFailingPolicy was to change the default Policy file,
built into the Guest rootfs image.
2. Ignore errors returned by regorus while evaluating Policy rules, if
AllowRequestsFailingPolicy was enabled. For example, trying to
evaluate the UpdateInterfaceRequest rules using a policy that didn't
define any UpdateInterfaceRequest rules results in a "not found"
error from regorus. Allow AllowRequestsFailingPolicy := true to
bypass that error.
3. Add simple CI test for AllowRequestsFailingPolicy.
These changes are restoring functionality that was broken recently by
commmit df23eb09a6.
Signed-off-by: Dan Mihai <dmihai@microsoft.com>
Since we can't find a homogeneous value for the resource/cgroup
management of multiple hypervisors, and we have decoupled the
env vars in the Makefile, we don't need the generic ones.
Signed-off-by: Anastassios Nanos <ananos@nubificus.co.uk>
To avoid overriding env vars when multiple hypervisors are
available, we add per-hypervisor vars for static resource
management and cgroups handling. We reflect that in the
relevant config files as well.
Signed-off-by: Anastassios Nanos <ananos@nubificus.co.uk>
It's better to check the container's status before
try to send signal to it. Since there's no need
to send signal to it when the container's stopped.
Signed-off-by: Fupan Li <fupan.lfp@antgroup.com>
Since stop sandbox would be called in multi path,
thus it's better to set and check the sandbox's state.
Fixes: #10042
Signed-off-by: Fupan Li <fupan.lfp@antgroup.com>
Generate policy that validates each exec command line argument, instead
of joining those args and validating the resulting string. Joining the
args ignored the fact that some of the args might include space
characters.
The older format from genpolicy-settings.json was similar to:
"ExecProcessRequest": {
"commands": [
"sh -c cat /proc/self/status"
],
"regex": []
},
That format will not be supported anymore. genpolicy will detect if its
users are trying to use the older "commands" field and will exit with
a relevant error message in that case.
The new settings format is:
"ExecProcessRequest": {
"allowed_commands": [
[
"sh",
"-c",
"cat /proc/self/status"
]
],
"regex": []
},
Signed-off-by: Dan Mihai <dmihai@microsoft.com>
It's time to delete the kata oci spec implemented just
for kata. As we have already done align OCI Spec with
oci-spec-rs.
Fixes#9766
Signed-off-by: Alex Lyn <alex.lyn@antgroup.com>
This commit aligns the OCI Spec implementation in runtime-rs
with the OCI Spec definitions and related operations provided
by oci-spec-rs. Key changes as below:
(1) Leveraged oci-spec-rs to align Kata Runtime OCI Spec with
the official OCI Spec.
(2) Introduced runtime-spec to separate OCI Spec definitions
from Kata-specific State data structures.
(3) Preserved the original code logic and implementation as
much as possible.
(4) Made minor code adjustments to adhere to Rust programming
conventions;
Fixes#9766
Signed-off-by: Alex Lyn <alex.lyn@antgroup.com>
Utilized oci-spec-rs to align OCI Spec structures
and data representations in runk with the OCI Spec.
Fixes#9766
Signed-off-by: Alex Lyn <alex.lyn@antgroup.com>
This commit aligns the OCI Spec used within agent-ctl
with the oci-spec-rs definition and operations. This
enhancement ensures that agent-ctl adheres to the latest
OCI standards and provides a more consistent and reliable
experience for managing container images and configurations.
Fixes#9766
Signed-off-by: Alex Lyn <alex.lyn@antgroup.com>
This commit transitions the data implementation for OCI Spec
from kata-oci-spec to oci-spec-rs. While both libraries adhere
to the OCI Spec standard, significant implementation details
differ. To ensure data exchange through TTRPC services, this
commit reimplements necessary data conversion logic.
This conversion bridges the gap between oci-spec-rs data and
TTRPC data formats, guaranteeing consistent and reliable data
transfer across the system.
Fixes#9766
Signed-off-by: Alex Lyn <alex.lyn@antgroup.com>
For nerdctl and docker runtimes, network is hot-plugged instead of
cold-plugged. While this change was made in the runtime,
we did not have the agent waiting for the device to be ready.
On some systems, the device hotplug could take some time causing
the update_interface rpc call to fail as the interface is not available.
Add a watcher for the network interface based on the pci-path of the
network interface. Note, waiting on the device based on name is really
not reliable especially in case multiple networks are hotplugged.
Signed-off-by: Archana Shinde <archana.m.shinde@intel.com>
Hotunplugging memory is not guaranteed or even likely to work.
Nevertheless I'd really like to have this code in for tests and
observation. It shouldn't hurt, from experience so far.
Signed-off-by: Pavel Mores <pmores@redhat.com>
The bulk of this implementation are simple though tedious sanity checks,
alignment computations and logging.
Note that before any hotplugging, we query qemu directly for the current
size of hotplugged memory. This ensures that any request to resize memory
will be properly compared to the actual already available amount and only
necessary amount will be added.
Note also that we borrow checked_next_multiple_of() from CH implementation.
While this might look uncleanly it's just a rather temporary solution since
an equivalent function will apparently be part of std soon, likely the
upcoming 1.75.
Signed-off-by: Pavel Mores <pmores@redhat.com>
The algorithm is rather simple - we query qemu for existing memory devices
to figure out the index of the one we're about to add. Then we add a
backend object and a corresponding frontend device.
Signed-off-by: Pavel Mores <pmores@redhat.com>
As part of aligning the Kata OCI Spec with oci-spec-rs,
the concept of "State" falls outside the scope of the OCI
Spec itself. While we'll retain the existing code for State
management for now, to improve code organizationand clarity,
we propose moving the State-related code from the oci/ dir
to a dedicated directory named runtime-spec/.
This separation will be completed in subsequent commits with
the removal of the oci/ directory.
Fixes#9766
Signed-off-by: Alex Lyn <alex.lyn@antgroup.com>
When create container failed, it should cleanup the container
thus there's no device/resource left.
Fixes: #10044
Signed-off-by: Fupan Li <fupan.lfp@antgroup.com>
Similar to HotAttach, the HotDetach method signature for network
endoints needs to be changed as well to allow for the method to make
use of device manager to manage the hot unplug of physical network
devices.
Signed-off-by: Archana Shinde <archana.m.shinde@intel.com>
Enable physical network interfaces to be hotplugged.
For this, we need to change the signature of the HotAttach method
to make use of Sandbox instead of Hypervisor. Similar approach was
followed for Attach method, but this change was overlooked for
HotAttach.
The signature change is required in order to make use of
device manager and receiver for physical network
enpoints.
Fixes: #8405
Signed-off-by: Archana Shinde <archana.m.shinde@intel.com>
The current implementation for device binding using driver bind/unbind
and new_id fails in the scenario when the physical device is not bound
to a driver before assigning it to vfio.
There exists and updated mechanism to accomplish the same that does not
have the same issue as above.
The driver_override field for a device allows us to specify the driver for a device
rather than relying on the bound driver to provide a positive match of the
device. It also has other advantages referenced here:
https://patchwork.kernel.org/project/linux-pci/patch/1396372540.476.160.camel@ul30vt.home/
So use the updated driver_override mechanism for binding/unbinding a
physical device/virtual function to vfio-pci.
Signed-off-by: liangxianlong <liang.xianlong@zte.com.cn>
Signed-off-by: Archana Shinde <archana.m.shinde@intel.com>
Keep track of individual exec args instead of joining them in the
policy text. Verifying each arg results in a more precise policy,
because some of the args might include space characters.
This improved validation applies to commands specified in K8s YAML
files using:
- livenessProbe
- readinessProbe
- startupProbe
- lifecycle.postStart
- lifecycle.preStop
Signed-off-by: Dan Mihai <dmihai@microsoft.com>
If the agent-config has a value for `image_registry_auth`,
Then pass this to the image-rs client and enable auth mode too
Fixes: #8122
Signed-off-by: Magnus Kulke <magnuskulke@microsoft.com>
Signed-off-by: stevenhorsman <steven@uk.ibm.com>
Add optional config for agent.image_registry_auth, to specify
the uri of credentials to be used when pulling images in the guest
from an authenticated registry
Fixes: #8122
Signed-off-by: Xynnn007 <xynnn@linux.alibaba.com>
Signed-off-by: Magnus Kulke <magnuskulke@microsoft.com>
Signed-off-by: stevenhorsman <steven@uk.ibm.com>
Add setting to allow specifying the cpath for a mount source.
cpath is the root path for most files used by a container. For example,
the container rootfs and various files copied from the Host to the
Guest when shared_fs=none are hosted under cpath.
mount_source_cpath is the root of the paths used a storage mount
sources. Depending on Kata settings, mount_source_cpath might have the
same value as cpath - but on TDX for example these two paths are
different: TDX uses "/run/kata-containers" as cpath,
but "/run/kata-containers/shared/containers" as mount_source_cpath.
Signed-off-by: Saul Paredes <saulparedes@microsoft.com>
ocicrypt config is for kata-agent to connect to CDH to request for image
decryption key. This value is specified by an env. We use this
workaround the same as CCv0 branch.
In future, we will consider better ways instead of writting files and
setting envs inside inner logic of kata-agent.
Signed-off-by: Xynnn007 <xynnn@linux.alibaba.com>
- Enable the kata-cc-rustls-tls feature in image-rs, so that it
can get resources from the KBS in order to retrieve the registry
credentials.
- Also bump to the latest image-rs to pick up protobuf fixes
- Add libprotobuf-dev dependency to the agent packaging
as it is needed by the new image-rs feature
- Add extra env in the agent make test as the
new version of the anyhow crate has changed the backtrace capture thus unit
tests of kata-agent that compares a raised error with an expected one
would fail. To fix this, we need only panics to have backtraces, thus
set RUST_BACKTRACE=0 for tests due to document
https://docs.rs/anyhow/latest/anyhow/Fixes#9538
Signed-off-by: Xynnn007 <xynnn@linux.alibaba.com>
Signed-off-by: stevenhorsman <steven@uk.ibm.com>
Add ability to auto-generate policy for SecurityContext.runAsUser and
PodSecurityContext.runAsUser.
Fixes: #8879
Signed-off-by: Dan Mihai <dmihai@microsoft.com>
Sets SharedFS config to NoSharedFS for remote hypervisor in order to start the file watcher which syncs files from the host to the guest VMs.
Signed-off-by: Silenio Quarti <silenio_quarti@ca.ibm.com>
The DAN feature has already been implemented in kata-runtime-rs, and
this commit brings the same capability to the Go kata-runtime.
Fixes: #9758
Signed-off-by: Lei Huang <leih@nvidia.com>
In dragonball Vfio device passthrough scenarois, the first passthrough
device will be allocated slot 0 which is occupied by root device.
It will cause error, looks like as below:
```
...
6: failed to add VFIO passthrough device: NoResource\n
7: no resource available for VFIO device"): unknown
...
```
To address such problem, we adopt another method with no pre-allocated
guest device id and just let dragonball auto allocate guest device id
and return it to runtime. With this idea, add_device will return value
Result<DeviceType> and apply the change to related code.
Fixes#9813
Signed-off-by: Alex Lyn <alex.lyn@antgroup.com>
Fixes: #9532
Instead of call agent.close_stdin in close_io, we call agent.write_stdin
with 0 len data when the stdin pipe ends.
Signed-off-by: Tim Zhang <tim@hyper.sh>
To test unsealing secrets stored in environment variables,
we create a simple test server that takes the place of
the CDH. We start this server and then use it to
unseal a test secret.
Signed-off-by: Tobin Feldman-Fitzthum <tobin@ibm.com>
Signed-off-by: Linda Yu <linda.yu@intel.com>
When sealed-secret is enabled, the Kata Agent
intercepts environment variables containing
sealed secrets and uses the CDH to unseal
the value.
Signed-off-by: Tobin Feldman-Fitzthum <tobin@ibm.com>
Signed-off-by: Linda Yu <linda.yu@intel.com>
- Bump the commit of image-rs we are pulling in to 413295415
Note: This is the last commmit before a change to whiteout handling
was introduced that lead to the error `'failed to unpack: convert whiteout"`
when pulling the agnhost:2.21 image
Signed-off-by: stevenhorsman <steven@uk.ibm.com>
Let me explain why:
In our previous approach, we implemented guest pull by passing PullImageRequest to the guest.
However, this method resulted in the loss of specifications essential for running the container,
such as commands specified in YAML, during the CreateContainer stage. To address this,
it is necessary to integrate the OCI specifications and process information
from the image’s configuration with the container in guest pull.
The snapshotter method does not care this issue. Nevertheless, a problem arises
when two containers in the same pod attempt to pull the same image, like InitContainer.
This is because the image service searches for the existing configuration,
which resides in the guest. The configuration, associated with <image name, cid>,
is stored in the directory /run/kata-containers/<cid>. Consequently, when the InitContainer finishes
its task and terminates, the directory ceases to exist. As a result, during the creation
of the application container, the OCI spec and process information cannot
be merged due to the absence of the expected configuration file.
Fixes: kata-containers#9665
Fixes: kata-containers#9666
Fixes: kata-containers#9667
Fixes: kata-containers#9668
Signed-off-by: ChengyuZhu6 <chengyu.zhu@intel.com>
Currently, the image is pulled by image-rs in the guest and mounted at
`/run/kata-containers/image/cid/rootfs`. Finally, the agent rebinds
`/run/kata-containers/image/cid/rootfs` to `/run/kata-containers/cid/rootfs` in CreateContainer.
However, this process requires specific cleanup steps for these mount points.
To simplify, we reuse the mount point `/run/kata-containers/cid/rootfs`
and allow image-rs to directly mount the image there, eliminating the need for rebinding.
Signed-off-by: ChengyuZhu6 <chengyu.zhu@intel.com>
- Add a check in setup_bundle to see if the bundle already exists
and if it does then skip the setup.
This commit is cherry-picked from 44ed3ab80e.
The reason that k8s-kill-all-process-in-container.bats failed is that
deletion of the directory `/root/kata-containers/cid/rootfs` failed during removing container
because it was mounted twice (one in image-rs and one in set_bundle ) and only unmounted once in removing container.
Fixes: #9664
Signed-off-by: ChengyuZhu6 <chengyu.zhu@intel.com>
Co-authored-by: Dave Hay <david_hay@uk.ibm.com>
Signed-off-by: stevenhorsman <steven@uk.ibm.com>
To unseal a secret, the Kata agent will contact the CDH
using ttRPC. Add the proto that describes the sealed
secret service and messages that will be used.
Signed-off-by: Tobin Feldman-Fitzthum <tobin@ibm.com>
Signed-off-by: Biao Lu <biao.lu@intel.com>
Add a basic runtime-rs `Hypervisor` trait implementation for
AWS Firecracker
- Add basic hypervisor operations (setup / start / stop / add_device)
- Implement AWS Firecracker API on a separate file `fc_api.rs`
- Add support for running jailed (include all sandbox-related content)
- Add initial device support (limited as hotplug is not supported)
- Add separate config for runtime-rs (FC)
Notes:
- devmapper is the only snapshotter supported
- to account for no sharefs support, we copy files in the sandbox (as
in the GO runtime)
- nerdctl spawn is broken (TODO: #7703)
Fixes: #5268
Signed-off-by: George Pyrros <gpyrros@nubificus.co.uk>
Signed-off-by: Anastassios Nanos <ananos@nubificus.co.uk>
Signed-off-by: Charalampos Mainas <cmainas@nubificus.co.uk>
Signed-off-by: George Ntoutsos <gntouts@nubificus.co.uk>
This commit adds the missing step of passing an attached vfio-ap device
to a container via ociSpec. It instantiates and passes a vfio-ap device
(e.g. a Z crypto device).
A device at `/dev/z90crypt` covers all use cases at the time of writing.
Signed-off-by: Hyounggyu Choi <Hyounggyu.Choi@ibm.com>
Do not install the packages librados-dev and librbd-dev as they are not needed for building static qemu.
Add machine option cap-ail-mode-3=off while creating the VM to qemu cmdline.
Fixes: #9893
Signed-off-by: Amulyam24 <amulmek1@in.ibm.com>
In case we are dealing with multiple interfaces and there exists a
network interface with a conflicting name, we temporarily rename it to
avoid name conflicts.
Before doing this, we need to rename bring the interface down.
Failure to do so results in netlink returning Resource busy errors.
The resource needs to be down for subsequent operation when the name is
swapped back as well.
This solves the issue of passing multiple networks in case of nerdctl
as:
nerdctl run --rm --net foo --net bar docker.io/library/busybox:latest ip a
Fixes: #9900
Signed-off-by: Archana Shinde <archana.m.shinde@intel.com>
This patch re-generates the client code for Cloud Hypervisor v40.0.
Note: The client code of cloud-hypervisor's OpenAPI is automatically
generated by openapi-generator.
Fixes: #9929
Signed-off-by: Bo Chen <chen.bo@intel.com>
Updated genpolicy settings to allow 2 empty environment variables that
may be forgotten to specify (AZURE_CLIENT_ID and AZURE_TENANT_ID)
Signed-off-by: Saul Paredes <saulparedes@microsoft.com>
Add --layers-cache-file-path flag to allow the user to
specify where the cache file for the container layers
is saved. This allows e.g. to have one cache file
independent of the user's working directory.
Signed-off-by: Leonard Cohnen <lc@edgeless.systems>
Move the `sandbox.agent.setPolicy` call out of the remoteHypervisor
if, block, so we can use the policy implementation on peer pods
Signed-off-by: stevenhorsman <steven@uk.ibm.com>
get_vmm_master_tid() currently returns an error with the message "cannot
get qemu pid (though it seems running)" when it finds a valid
QemuInner::qemu_process instance but fails to extract the PID out of it.
This condition however in fact means that a qemu child process was running
(otherwise QemuInner::qemu_process would be None) but isn't anymore (id()
returns None).
Signed-off-by: Pavel Mores <pmores@redhat.com>
Since Hypervisor::stop_vm() is called from the WaitProcess request handling
which appears to be per-container, it can be called multiple times during
kata pod shutdown. Currently the function errors out on any subsequent
call after the initial one since there's no VM to stop anymore. This
commit makes the function tolerate that condition.
While it seems conceivable that sandbox shouldn't be stopped by WaitProcess
handling, and the right fix would then have to happen elsewhere, this
commit at least makes qemu driver's behaviour consistent with other
hypervisor drivers in runtime-rs.
We also slightly improve the error message in case there's no
QemuInner::qemu_process instance.
Signed-off-by: Pavel Mores <pmores@redhat.com>
Since no objections were raised in the linked issue (#9847) this commit
removes the attempt to derive sandbox bundle path from container bundle
path. As described in more detail in the linked issue, this is container
runtime specific and doesn't seem to serve any purpose.
As for implementation, we hoist the only part of
get_shim_info_from_sandbox() that's still useful (getting the socket
address) directly into the caller and remove the function altogether.
Fixes#9847
Signed-off-by: Pavel Mores <pmores@redhat.com>
Reject CreateContainerRequest field values that are not tested by
Kata CI and that might impact the confidentiality of CoCo Guests.
This change uses a "better safe than sorry" approach to untested
fields. It is very possible that in the future we'll encounter
reasonable use cases that will either:
- Show that some of these fields are benign and don't have to be
verified by Policy, or
- Show that Policy should verify legitimate values of these fields
These are the new CreateContainerRequest Policy rules:
count(input.shared_mounts) == 0
is_null(input.string_user)
i_oci := input.OCI
is_null(i_oci.Hooks)
is_null(i_oci.Linux.Seccomp)
is_null(i_oci.Solaris)
is_null(i_oci.Windows)
i_linux := i_oci.Linux
count(i_linux.GIDMappings) == 0
count(i_linux.MountLabel) == 0
count(i_linux.Resources.Devices) == 0
count(i_linux.RootfsPropagation) == 0
count(i_linux.UIDMappings) == 0
is_null(i_linux.IntelRdt)
is_null(i_linux.Resources.BlockIO)
is_null(i_linux.Resources.Network)
is_null(i_linux.Resources.Pids)
is_null(i_linux.Seccomp)
i_linux.Sysctl == {}
i_process := i_oci.Process
count(i_process.SelinuxLabel) == 0
count(i_process.User.Username) == 0
Signed-off-by: Dan Mihai <dmihai@microsoft.com>
Commit 'ca02c9f5124e' implements the vhost-user-blk reconnection functionality,
However, it has missed assigning VhostUserDeviceReconnect when new the QEMU
HypervisorConfig, resulting in VhostUserDeviceReconnect always set to default value 0.
Real change is this line, most of changes caused by go format,
return vc.HypervisorConfig{
// ...
VhostUserDeviceReconnect: h.VhostUserDeviceReconnect,
}, nil
Fixes: #9848
Signed-off-by: markyangcc <mmdou3@163.com>
This is a counterpart of commit abf52420a4 for the qemu-coco-dev
configuration. By allowing default_vcpu and default_memory annotations
users can fine-tune the VM based on the size of the container
image to avoid issues related with pulling large images in the guest.
Signed-off-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
Just like the TEE configurations (sev, snp, tdx) we want to have the
qemu-coco-dev using shared_fs=none.
Fixes: #9676
Signed-off-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
- Bump tokio to 1.38.0 to fix the security vulnerability
https://rustsec.org/advisories/RUSTSEC-2024-0019
If possible it would be good to add the many runtime-rs creates into the
runtime-rs workspace and provide a centralised version to avoid the updates
in many places.
Signed-off-by: stevenhorsman <steven@uk.ibm.com>
- Run `cargo update -p rustjail` to pick up rustjail's bump of
tokio to 1.38.0 to fix the security vulnerability
https://rustsec.org/advisories/RUSTSEC-2024-0019
Signed-off-by: stevenhorsman <steven@uk.ibm.com>
