The new image reference has changed to mcr.microsoft.com/oss/v2/kubernetes/pause:3.6
from mcr.microsoft.com/oss/kubernetes/pause:3.6.
The new image uses by default UID=0, GID=0 while the older. The older image had:
UID=65535, GID=65535.
There is a new pause_container_id_policy field in genpolicy-settings.json, informing
genpolicy about the way AdditionalGids gets updated - "v1" for the older behavior
and "v2" for the newer AKS version:
- When using v1, the default value of AdditionalGids is {65535}.
- When using v2, the default value of AdditionalGids is {}.
UID=65535 and GID=65535 are still hard-coded by default in genpolicy-settings.json.
We might be able to remove/ignore these fields in the future, if we'll stop relying
on policy::KataSpec::get_process_fields to use these fields.
A new CI function adapt_common_policy_settings_for_aks() changes the pause container
UID, GID, pause_container_id_policy, and image ref settings values when testing on
AKS Hosts - i.e., when testing coco-dev or mariner Hosts.
The genpolicy workarounds for the unexpected behavior with guest pull enabled have
been improved to use the current container's GID instead of hard-coding GID=0 as the
guest pull default. Also, AdditionalGids gets updated when the current container's GID is
changing, instead of always changing the AdditionalGids at the very end of
policy::AgentPolicy::get_container_process(), when the relevant evolution of the GID
value was no longer available.
Signed-off-by: Dan Mihai <dmihai@microsoft.com>
If a ConfigMap has more than 8 files it will not be mounted watchable
[1]. However, genpolicy assumes that ConfigMaps are always mounted at a
watchable path, so containers with large ConfigMap mounts fail
verification.
This commit allows mounting ConfigMaps from watchable and non-watchable
directories. ConfigMap mounts can't be meaningfully verified anyway, so
the exact location of the data does not matter, except that we stay in
the sandbox data dirs.
[1]: 0ce3f5fc6f/docs/design/inotify.md (L11-L21)Fixes: #11777
Signed-off-by: Markus Rudy <mr@edgeless.systems>
- copy default-initdata.toml in create_tmp_policy_settings_dir, so it can be modified by other tests if needed
- make auto_generate_policy use default-initdata.toml by default
- add auto_generate_policy_no_added_flags, so it may be used by tests that don't want to use default-initdata.toml by default
Signed-off-by: Saul Paredes <saulparedes@microsoft.com>
No need to die when a Kind that does not require a policy annotation is
found in a pod manifest. Print an informational message instead.
Signed-off-by: Manuel Huber <mahuber@microsoft.com>
-o pipefail in particular ensures that exec_host() returns the right exit
code.
-u is also added for good measure. Note that $BATS_TEST_DIRNAME is set by
bats so we move its usage inside the function.
Signed-off-by: Aurélien Bombo <abombo@microsoft.com>
This commit addresses an issue where base64 output, when used with a
default configuration, would introduce newlines, causing decoding to
fail on the runtime.
The fix ensures base64 output is a single, continuous line using the -w0
flag. This guarantees the encoded string is a valid Base64 sequence,
preventing potential runtime errors caused by invalid characters.
Note that: When you use the base64 command without any parameters, it
typically automatically adds newlines to the output, usually every 76 chars.
In contrast, base64 -w0 explicitly tells the command not to add any
newlines (-w for wrap, and 0 for a width of zero), which results in a
continuous string with no whitespace.
This is a critical distinction because if you pass a Base64 string with
newlines to a runtime, it may be treated as an invalid string, causing
the decoding process to fail.
Signed-off-by: Alex Lyn <alex.lyn@antgroup.com>
Add container_exec_with_retries(), useful for retrying if needed
commands similar to:
kubectl exec <pod_name> -c <container_name> -- <command>
Signed-off-by: Dan Mihai <dmihai@microsoft.com>
- "confidential_emptyDir" becomes "emptyDir" in the settings file.
- "confidential_configMap" becomes "configMap" in settings.
- "mount_source_cpath" becomes "cpath".
- The new "root_path" gets used instead of the old "cpath" to point to
the container root path..
- "confidential_guest" is no longer used. By default it gets replaced
by "enable_configmap_secret_storages"=false, because CoCo is using
CopyFileRequest instead of the Storage data structures for ConfigMap
and/or Secret volume mounts during CreateContainerRequest.
- The value of "guest_pull" becomes true by default.
- "image_layer_verification" is no longer used - just CoCo's guest pull
is supported.
- The Request input files from unit tests are changing to reflect the
new default settings values described above.
- tests/integration/kubernetes/tests_common.sh adjusts the settings for
platforms that are not set-up for CoCo during CI (i.e., platforms
other than SNP, TDX, and CoCo Dev).
Signed-off-by: Dan Mihai <dmihai@microsoft.com>
This commit updates the `tests_common.sh` script
to enable the `confidential_guest`
setting for the coco tests in the Kubernetes
integration tests.
Signed-off-by: Archana Choudhary <archana1@microsoft.com>
Nydus+guest_pull has specific behavior where it improperly handles image layers on
the host, causing the CRI to not find /etc/passwd and /etc/group files
on container images which have them. The unfortunately causes different
outcomes w.r.t. GID used which we are trying to enforce with policy.
This behavior is observed/explained in https://github.com/kata-containers/kata-containers/issues/11162
Handle this exception with a config.settings.cluster_config.guest_pull
field. When this is true, simply ignore the /etc/* files in the
container image as they will not be parsed by the CRI.
Signed-off-by: Cameron Baird <cameronbaird@microsoft.com>
genpolicy is sending more HTTPS requests than other components during
CI so it's more likely to be affected by transient network errors
similar to:
ConnectError(
"dns error",
Custom {
kind: Uncategorized,
error: "failed to lookup address information: Try again",
},
)
Note that genpolicy is not the only component hitting network errors
during CI. Recent example from a different component:
"Message: failed to create containerd task: failed to create shim task:
failed to async pull blob stream HTTP status server error (502 Bad Gateway)"
This CI change might help just with the genpolicy errors.
Fixes: #11182
Signed-off-by: Dan Mihai <dmihai@microsoft.com>
More straightforward implementation of hard_coded_policy_tests_enabled,
that avoids ShellCheck warning:
warning: Remove quotes from right-hand side of =~ to match as a regex rather than literally. [SC2076]
Signed-off-by: Dan Mihai <dmihai@microsoft.com>
Fix unintended use of caller's variable. Use the corresponding function
parameter instead. ShellCheck:
warning: policy_settings_dir is referenced but not assigned. [SC2154]
Signed-off-by: Dan Mihai <dmihai@microsoft.com>
Avoid masking command return values by declaring and only then assigning.
ShellCheck:
warning: Declare and assign separately to avoid masking return values. [SC2155]
Signed-off-by: Dan Mihai <dmihai@microsoft.com>
Pick the the values exported by other scripts. ShellCheck:
warning: AUTO_GENERATE_POLICY is referenced but not assigned. [SC2154]
Signed-off-by: Dan Mihai <dmihai@microsoft.com>
ShellCheck:
warning: This assignment is only seen by the forked process. [SC2097]
warning: This expansion will not see the mentioned assignment. [SC2098]
Signed-off-by: Dan Mihai <dmihai@microsoft.com>
ShellCheck: add braces around variable references:
note: Prefer putting braces around variable references even when not strictly required. [SC2250]
Signed-off-by: Dan Mihai <dmihai@microsoft.com>
ShellCheck: export variables used outside of tests_common.sh - e.g.,
warning: timeout appears unused. Verify use (or export if used externally). [SC2034]
Signed-off-by: Dan Mihai <dmihai@microsoft.com>
Replace [ ] with [[ ]] as advised by shellcheck:
note: Prefer [[ ]] over [ ] for tests in Bash/Ksh. [SC2292]
Signed-off-by: Dan Mihai <dmihai@microsoft.com>
Retry "kubectl exec" a few times if it unexpectedly produced an empty
output string.
This is an attempt to work around test failures similar to:
https://github.com/kata-containers/kata-containers/actions/runs/13840930994/job/38730153687?pr=10983
not ok 1 Environment variables
(from function `grep_pod_exec_output' in file tests_common.sh, line 394,
in test file k8s-env.bats, line 36)
`grep_pod_exec_output "${pod_name}" "HOST_IP=\([0-9]\+\(\.\|$\)\)\{4\}" "${exec_command[@]}"' failed
That test obtained correct ouput from "sh -c printenv" one time, but the
second execution of the same command returned an empty output string.
Signed-off-by: Dan Mihai <dmihai@microsoft.com>
grep_pod_exec_output invokes "kubectl exec", logs its output, and checks
that a grep pattern is present in the output.
Signed-off-by: Dan Mihai <dmihai@microsoft.com>
- Remove default_namespace from settings
- Ensure container namespaces in a pod match each other in case no namespace is specified in the YAML
Signed-off-by: Saul Paredes <saulparedes@microsoft.com>
By the moment we're testing it also with qemu-coco-dev, it becomes
easier for a developer without access to TEE to also test it locally.
Signed-off-by: Fabiano Fidêncio <fabiano@fidencio.org>
The behavior of Kata CI doesn't change.
For local testing using kubernetes/gha-run.sh and AUTO_GENERATE_POLICY=yes:
1. Before these changes users were forced to use:
- SEV, SNP, or TDX guests, or
- KATA_HOST_OS=cbl-mariner
2. After these changes users can also use other platforms that are
configured with "shared_fs = virtio-fs" - e.g.,
- KATA_HOST_OS=ubuntu + KATA_HYPERVISOR=qemu
Signed-off-by: Dan Mihai <dmihai@microsoft.com>
There are many similar or duplicated code patterns in `teardown()`.
This commit consolidates them into a new function, `teardown_common()`,
which is now called within `teardown()`.
Signed-off-by: Hyounggyu Choi <Hyounggyu.Choi@ibm.com>
With #10232 merged, we now have a persistent node debugger pod throughout the test.
As a result, there’s no need to spawn another debugger pod using `kubectl debug`,
which could lead to false negatives due to premature pod termination, as reported
in #10081.
This commit removes the `print_node_journal()` call that uses `kubectl debug` and
instead uses `exec_host()` to capture the host journal. The `exec_host()` function
is relocated to `tests/integration/kubernetes/lib.sh` to prevent cyclical dependencies
between `tests_common.sh` and `lib.sh`.
Signed-off-by: Hyounggyu Choi <Hyounggyu.Choi@ibm.com>
If the host running the tests is different from the host where the cluster is running,
the *_loop_device() functions do not work as expected because the device is created
on the test host, while the cluster expects the device to be local.
This commit ensures that all commands for the relevant functions are executed via exec_host()
so that a device should be handled on a cluster node.
Additionally, it modifies exec_host() to return the exit code of the last executed command
because the existing logic with `kubectl debug` sometimes includes unexpected characters
that are difficult to handle. `kubectl exec` appears to properly return the exit code for
a given command to it.
Signed-off-by: Hyounggyu Choi <Hyounggyu.Choi@ibm.com>
Creating and deleting a node debugger pod for every `exec_host()`
call is inefficient.
This commit changes the test suite to create and delete the pod
only once, globally.
Signed-off-by: Hyounggyu Choi <Hyounggyu.Choi@ibm.com>
This commit addresses an issue with handling loop devices
via a node debugger due to restricted privileges.
It runs a pod with full privileges, allowing it to mount
the host root to `/host`, similar to the node debugger.
This change enables us to run tests for trusted image storage
using the `qemu-coco-dev` runtime class.
Fixes: #10133
Signed-off-by: Hyounggyu Choi <Hyounggyu.Choi@ibm.com>
This commit brings some public parts of image pulling test series like
encrypted image pulling, pulling images from authenticated registry and
image verification. This would help to reduce the cost of maintainance.
Co-authored-by: stevenhorsman <steven@uk.ibm.com>
Signed-off-by: Xynnn007 <xynnn@linux.alibaba.com>
Signed-off-by: stevenhorsman <steven@uk.ibm.com>
GH-9592 addressed a bug in a previous version of the AKS Mariner host
kernel that blocked the CH v39 upgrade. This bug has now been fixed so
we undo that PR.
Note we also specify a different OCI version for Mariner as it differs
from Ubuntu's.
Fixes: #9594
Signed-off-by: Aurélien Bombo <abombo@microsoft.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>
The `exec_host()` function often fails to capture the output of a given command
because the node debugger pod is prematurely terminated. To address this issue,
the function has been refactored to ensure consistent output capture by adjusting
the `kubectl debug` process as follows:
- Keep the node debugger pod running
- Wait until the pod is fully ready
- Execute the command using `kubectl exec`
- Capture the output and terminate the pod
This commit refactors `exec_host()` to implement the above steps, improving its reliability.
Fixes: #10081
Signed-off-by: Hyounggyu Choi <Hyounggyu.Choi@ibm.com>
This PR updates the image that we are using in the kubectl debug command
as part of the exec host function, as the current alpine image does not
allow to create a temporary file for example and creates random kubernetes
failures.
Signed-off-by: Gabriela Cervantes <gabriela.cervantes.tellez@intel.com>
The issue is similar to #10011.
The root cause is that tty and stderr are set to true at same time in
containerd: #10031.
Fixes: #10081
Signed-off-by: ChengyuZhu6 <chengyu.zhu@intel.com>
