This is just an initial scope of tests. Much of this code was written by
@ginayeh . I just did the final polish/integration step.
There are 3 main tests included:
1. The GAMMA baseline test, including the [actual GAMMA
API](https://gateway-api.sigs.k8s.io/geps/gep-1426/) rather than vendor
extensions.
2. Kubernetes-based stateful session affinity tests, where the mesh
(including SSA configuration) is configured using CRDs
3. GCP-based stateful session affinity tests, where the mesh is
configured using the networkservices APIs directly
Tests 1 and 2 will run in both prod and GKE staging, i.e.
`container.googleapis.com` and
`staging-container.sandbox.googleapis.com`. The latter of these will act
as an early detection mechanism for regressions in the controller that
translates Gateway resources into networkservices resources.
Test 3 will run against `staging-networkservices.sandbox.googleapis.com`
to act as an early detection mechanism for regressions in the control
plane SSA implementation.
The scope of the SSA tests is still fairly minimal. Session drain
testing is in-progress but not included in this PR, though several
elements required for it are (grace period, pre-stop hook, and the
ability to kill a single pod in a deployment).
---------
Co-authored-by: Jung-Yu (Gina) Yeh <ginayeh@google.com>
Co-authored-by: Sergii Tkachenko <sergiitk@google.com>
- Switched from yapf to black
- Reconfigure isort for black
- Resolve black/pylint idiosyncrasies
Note: I used `--experimental-string-processing` because black was
producing "implicit string concatenation", similar to what described
here: https://github.com/psf/black/issues/1837. While currently this
feature is experimental, it will be enabled by default:
https://github.com/psf/black/issues/2188. After running black with the
new string processing so that the generated code merges these `"hello" "
world"` strings concatenations, then I removed
`--experimental-string-processing` for stability, and regenerated the
code again.
To the reviewer: don't even try to open "Files Changed" tab 😄 It's
better to review commit-by-commit, and ignore `run black and isort`.
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---------
Co-authored-by: Sergii Tkachenko <hi@sergii.org>
- Changes the order of waiting for pods to start: wait for the pods first, then for the deployment to transition to active. This should provide more useful information in the logs, showing exactly why the pod didn't start, instead of generic "Replicas not available" ref b/200293121. This also needed for https://github.com/grpc/grpc/pull/30594
- Add support for `check_result` callback in the retryer helpers
- Completely replaces `retrying` with `tenacity`, ref b/200293121. Retrying is not longer maintained.
- Improves the readability of timeout errors: now they contain the timeout (or the attempt number) exceeded, and information why the timeout failed (exception/check function):
Before:
> `tenacity.RetryError: RetryError[<Future at 0x7f8ce156bc18 state=finished returned dict>]`
After:
> `framework.helpers.retryers.RetryError: Retry error calling framework.infrastructure.k8s.KubernetesNamespace.get_pod: timeout 0:01:00 exceeded. Check result callback returned False.`
- Improves the readability of the k8s wait operation errors: now the log includes colorized and formatted status of the k8s object being watched, instead of dumping the full k8s object. For example, here's how an error caused by using incorrect TD bootstrap image:
Separates xDS Test Client/Server (represent an interface to corresponding workload running remotely) from their runners (kubernetes-specific logic to provision the workloads with prerequisites).
This is a refactoring, should not change the behavior.
* xds-k8s: fix typo WORKLOAD_SERVICE_ACCOUNT to WORKLOAD_SA_EMAIL
also add content about image access and privateCAs
cluster create not to use beta and use mesh certs
Co-authored-by: Sergii Tkachenko <hi@sergii.org>
Richard Belleville
Sergii Tkachenko
Xuan Wang
Eugene Ostroukhov
yifeizhuang
sanjaypujare
Lidi Zheng
Hu Shuai