kind-alpha-beta-features-canary: run more tests (serial, deprecated, slow)

The experiment is meant to determine whether running serial tests in the same
job as the parallel tests works, how much slower it becomes, and how stable
the job is (hence periodic).

Slow, deprecated and disruptive tests are also allowed. The goal is full coverage.

Author: pohly

config/jobs/kubernetes/sig-testing/kubernetes-kind-ci.yaml

@@ -198,6 +198,58 @@ periodics:
           memory: 9Gi
           cpu: 7
 
+- interval: 8h
+  cluster: k8s-infra-prow-build
+  name: ci-kubernetes-e2e-kind-alpha-beta-features-canary
+  annotations:
+    testgrid-dashboards: sig-testing-kind
+    testgrid-tab-name: kind-master-alpha-beta
+    description: Runs tests with no special requirements other than alpha or beta feature gates in a KinD cluster where alpha and beta feature gates and APIs are enabled. In contrast to ci-kubernetes-e2e-kind-alpha-beta-features it really runs all such tests, with flaky tests being the only exception.
+    testgrid-alert-email: [email protected]
+    testgrid-num-columns-recent: '6'
+  labels:
+    preset-dind-enabled: "true"
+  decorate: true
+  decoration_config:
+    timeout: 2h
+  extra_refs:
+  - org: kubernetes
+    repo: kubernetes
+    base_ref: master
+    path_alias: k8s.io/kubernetes
+  spec:
+    containers:
+    - image: gcr.io/k8s-staging-test-infra/krte:v20250925-95b5a2c7a5-master
+      command:
+      - wrapper.sh
+      - bash
+      - -c
+      # Modified e2e-k8s.sh from https://github.com/kubernetes-sigs/kind/pull/4015/files.
+      # It gets pulled here to try out that modification for a while *before* merging it.
+      - curl -sSL https://kind.sigs.k8s.io/dl/latest/linux-amd64.tgz | tar xvfz - -C "${PATH%%:*}/" && curl -sSLO https://raw.githubusercontent.com/pohly/kind/46d774ce34846c9522efd9de1150b0d3cfa585c8/hack/ci/e2e-k8s.sh && chmod u+x e2e-k8s.sh && ./e2e-k8s.sh
+      env:
+      - name: FEATURE_GATES
+        value: '{"AllAlpha":true,"AllBeta":true,"EventedPLEG": false}'
+      - name: RUNTIME_CONFIG
+        value: '{"api/all":"true"}'
+      - name: LABEL_FILTER
+        # Full coverage. The only exception are known flaky tests.
+        value: "Feature: isSubsetOf OffByDefault && !Flaky"
+      - name: PARALLEL
+        value: "true"
+      # we need privileged mode in order to do docker in docker
+      securityContext:
+        privileged: true
+      resources:
+        limits:
+          memory: 9Gi
+          cpu: 7
+        requests:
+          # these are both a bit below peak usage during build
+          # this is mostly for building kubernetes
+          memory: 9Gi
+          cpu: 7
+
 - interval: 24h
   cluster: k8s-infra-prow-build
   name: ci-kubernetes-e2e-kind-rootless