For help with debugging add, logging of the KBS,
like the container system logs if the confidential test fails
Signed-off-by: stevenhorsman <steven@uk.ibm.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>
Introduce tests to check for policy correctness on a redis deployment
with 1. a pod-level securityContext 2. a container-level securityContext
which shadows the pod-level securityContext 3. a pod-level
securityContext which selects an existing user (nobody), causing a new GID to be selected.
Redis is an interesting container image to test with because it includes
a /etc/passwd file with existing user/group configuration of 1000:1000 baked in.
Signed-off-by: Cameron Baird <cameronbaird@microsoft.com>
_print_instance_type() returns the instance type of the AKS nodes, based
on the host type. Tests are grouped per host type in "small" and "normal"
sets based on the CPU requirements: "small" tests require few CPUs and
"normal" more.
There is an 3rd case: "all" host type maps to the union of "small"
and "normal" tests, which should be handled by _print_instance_type()
properly. In this case, it should return the largest instance type
possible because "normal" tests will be executed too.
Signed-off-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
It's used an AKS managed ingress controller which keeps two nginx pod
replicas where both request 500m of CPU. On small VMs like we've used on
CI for running the CoCo non-TEE tests, it left only a few amount of CPU
for the tests. Actually, one of these pod replicas won't even get
started. So let's patch the ingress controller to have only one replica
of nginx.
Signed-off-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
The Azure AKS addon-http-application-routing add-on is deprecated and
cannot be enabled on new clusters which has caused some CI jobs to fail.
Migrated our code to use approuting instead. Unlike
addon-http-application-routing, this add-on doesn't
configure a managed cluster DNS zone, but the created ingress has a
public IP. To avoid having to deal with DNS setup, we will be using that
address from now on. Thus, some functions no longer used are deleted.
Fixes#11156
Signed-off-by: Wainer dos Santos Moschetta <wainersm@redhat.com>
The AKS CLI recently introduced a regression that prevents using
aks-preview extensions (Azure/azure-cli#31345), and hence create
CI clusters.
To address this, we temporarily hardcode the last known good version of
aks-preview.
Note that I removed the comment about this being a Mariner requirement,
as aks-preview is also a requirement of AKS App Routing, which will
be introduced soon in #11164.
Signed-off-by: Aurélien Bombo <abombo@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>
If the correct version of go is already installed then
install_go.sh runs `exit`. When calling this as source from
cri-containerd/gha-run.sh it means all dependencies after
are skipped, so remove this.
Signed-off-by: stevenhorsman <steven@uk.ibm.com>
Bump golang version to the latest minor 1.23.x release
now that 1.24 has been released and 1.22.x is no longer
stable and receiving security fixes
Signed-off-by: stevenhorsman <steven@uk.ibm.com>
This test we will test initdata in the following logic
1. Enable image signature verification via kernel commandline
2. Set Trustee address via initdata
3. Pull an image from a banned registry
4. Check if the pulling fails with log `image security validation
failed` the initdata works.
Note that if initdata does not work, the pod still fails to launch. But
the error information is `[CDH] [ERROR]: Get Resource failed` which
internally means that the KBS URL has not been set correctly.
This test now only runs on qemu-coco-dev+x86_64 and qemu-tdx
Signed-off-by: Xynnn007 <xynnn@linux.alibaba.com>
Add how-to-use-memory-agent.md (How to use mem-agent to decrease the
memory usage of Kata container) to docs to show how to use mem-agent.
Fixes: #11013
Signed-off-by: Hui Zhu <teawater@gmail.com>
We get the following error while writing containerd config
if a base dir `/etc/containerd` does not exist like:
```
sudo tee /etc/containerd/config.toml << EOF
...
EOF
tee: /etc/containerd/config.toml: No such file or directory
```
The commit makes sure a base directory for containerd before
writing config and drops the config file deletion because a
default behaviour of `tee` is overwriting.
Signed-off-by: Hyounggyu Choi <Hyounggyu.Choi@ibm.com>
The test `Cannot get CDH resource when deny-all policy is set`
completes with a KBS policy set to deny-all. This affects the
future TEE test (e.g. k8s-sealed-secrets.bats) which makes a
request against KBS.
This commit introduces kbs_set_default_policy() and puts it to
the setup() in k8s-sealed-secrets.bats.
Signed-off-by: Hyounggyu Choi <Hyounggyu.Choi@ibm.com>
With this we switch to fully testing with helm, instead of testimg with
the kustomizations (which will soon be removed).
Signed-off-by: Fabiano Fidêncio <fabiano@fidencio.org>
Let's use what we have in the k8s functional tests to create a common
function to deploy kata containers using our helm charts. This will
help us immensely in the kata-deploy testing side in the near future.
Signed-off-by: Fabiano Fidêncio <fabiano@fidencio.org>
This is not strictly needed, but it does help a lot when setting up a
cluster manually, while still relying on those scripts.
While here, let's also ensure the assignment is between quotes, to make
shellchecker happier.
Signed-off-by: Fabiano Fidêncio <fabiano@fidencio.org>
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>
Same rationale as for runtime. With tests, the blackfriday replacement was
actually meaningful, so I refactored some imports.
Signed-off-by: Aurélien Bombo <abombo@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>
In ef0e8669fb we
had been seeing some significantly lower minvalues in
the jitter.Result test, so I lowered the mid-value rather
than having a very high minpercent, but it appears that the
variability of this result is very high, so we are still getting
the occasional high value, so reset the midval and just
have a bigger ranges on both sides, to try and keep the test
stable.
Signed-off-by: stevenhorsman <steven@uk.ibm.com>
The kubectl wait has a built in timeout of 30s, so
wrapping it in waitForProcess, means we have
180/2 * 30 delay, which is much longer than intended,
so just set the timeout directly.
Signed-off-by: stevenhorsman <steven@uk.ibm.com>
Test using the host path /tmp/k8s-policy-pod-test instead of
/var/lib/kubelet/pods.
/var/lib/kubelet/pods might happen to contain files that CopyFileRequest
would try to send to the Guest before CreateContainerRequest. Such
CopyFileRequest was an unintended side effect of this test.
Signed-off-by: Dan Mihai <dmihai@microsoft.com>
