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218877dc03
The original logic for evaluating pod security standards took two steps for each defined check: 1. If the policy author requested the latest version of the standard, find the newest version of the check and evaluate the pod against it, adding any failure to the final results. 2. Otherwise, evaluate the pod against *each version of the check* whose minimum version is below the requested version, adding any failures to the final results. This second step can be problematic, as new PSS versions may permit a broader range of values for a restricted field compared to old versions. As a concrete example, versioned podSecurity rules don't permit some of the newer sysctls allowed by Kubernetes v1.27 and v1.29, since Kyverno still evaluates v1.0 of the check. With this change, Kyverno identifies the highest version of the check that the podSecurity rule allows, and only executes that version of the check against the pod. Since the "latest" version is special-cased to compare newer than all non-latest versions, no special logic is required in that case. I've added unit tests for several combinations of sysctl and policy version, especially to check that policy v1.27 permits the new sysctl allowed in v1.27 but not the sysctls allowed in v1.29. I've also taken the liberty of changing `assert.Assert` to `assert.Check`, to collect multiple failures from a single unit test run. Signed-off-by: Alex Hamlin <alexanderh@qualtrics.com> |
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| auth | ||
| autogen | ||
| background | ||
| breaker | ||
| client | ||
| clients | ||
| config | ||
| controllers | ||
| cosign | ||
| engine | ||
| event | ||
| exceptions | ||
| globalcontext | ||
| images | ||
| imageverifycache | ||
| informers | ||
| leaderelection | ||
| logging | ||
| metrics | ||
| notary | ||
| policy | ||
| policycache | ||
| profiling | ||
| pss | ||
| registryclient | ||
| tls | ||
| toggle | ||
| tracing | ||
| userinfo | ||
| utils | ||
| validatingadmissionpolicy | ||
| validation | ||
| version | ||
| webhooks | ||