node: Move dockershim tests to their own job

This commit excludes Dockershim tests from the Serial job and moves them
to their own job. This is ahead of dockershim support being removed from
the kubelet to help clean up test flakiness.

config/jobs/kubernetes/sig-node/node-kubelet.yaml

@@ -196,7 +196,7 @@ periodics:
       - --provider=gce
       # Feature:DynamicKubeletConfig is deprecated and soon will be removed so tests are skipped.
       # If we want to run these tests, we need a separate job for it.
-      - --test_args=--nodes=1 --focus="\[Serial\]" --skip="\[Flaky\]|\[Benchmark\]|\[NodeSpecialFeature:.+\]|\[NodeSpecialFeature\]|\[NodeAlphaFeature:.+\]|\[NodeAlphaFeature\]|\[NodeFeature:Eviction\]|\[Feature:DynamicKubeletConfig\]"
+    - --test_args=--nodes=1 --focus="\[Serial\]" --skip="\[Flaky\]|\[Benchmark\]|\[NodeSpecialFeature:.+\]|\[NodeSpecialFeature\]|\[NodeAlphaFeature:.+\]|\[NodeAlphaFeature\]|\[NodeFeature:Eviction\]|\[Feature:DynamicKubeletConfig\]|\[Feature:Docker\]"
       - --timeout=240m
       env:
       - name: GOPATH
@@ -212,6 +212,45 @@ periodics:
     testgrid-dashboards: sig-node-kubelet
     testgrid-tab-name: node-kubelet-serial
 
+- name: ci-kubernetes-node-kubelet-serial-docker
+  interval: 4h
+  labels:
+    preset-service-account: "true"
+    preset-k8s-ssh: "true"
+  spec:
+    containers:
+    - image: gcr.io/k8s-staging-test-infra/kubekins-e2e:v20211111-d096cb0c5f-master
+      args:
+      - --repo=k8s.io/kubernetes=master
+      - --timeout=260
+      - --root=/go/src
+      - --scenario=kubernetes_e2e
+      - --
+      - --deployment=node
+      - --gcp-project-type=node-e2e-project
+      - --gcp-zone=us-west1-b
+      - --node-args=--image-config-file=/workspace/test-infra/jobs/e2e_node/image-config-serial.yaml
+      - --node-test-args=--feature-gates=LocalStorageCapacityIsolation=true --kubelet-flags="--cgroups-per-qos=true --cgroup-root=/"
+      - --node-tests=true
+      - --provider=gce
+      # Feature:DynamicKubeletConfig is deprecated and soon will be removed so tests are skipped.
+      # If we want to run these tests, we need a separate job for it.
+    - --test_args=--nodes=1 --focus="\[Feature:Docker\]" --skip=""
+      - --timeout=240m
+      env:
+      - name: GOPATH
+        value: /go
+      resources:
+        limits:
+          cpu: 4
+          memory: 6Gi
+        requests:
+          cpu: 4
+          memory: 6Gi
+  annotations:
+    testgrid-dashboards: sig-node-kubelet
+    testgrid-tab-name: node-kubelet-serial-docker
+
 - name: ci-kubernetes-node-kubelet-serial-containerd
   cluster: k8s-infra-prow-build
   interval: 4h

config/jobs/kubernetes/sig-node/sig-node-presubmit.yaml

@@ -480,7 +480,47 @@ presubmits:
         - --node-test-args=LocalStorageCapacityIsolation=true --kubelet-flags="--cgroups-per-qos=true --cgroup-root=/"
         - --node-tests=true
         - --provider=gce
-        - --test_args=--nodes=1 --focus="\[Serial\]" --skip="\[Flaky\]|\[Benchmark\]|\[NodeSpecialFeature:.+\]|\[NodeSpecialFeature\]|\[NodeAlphaFeature:.+\]|\[NodeAlphaFeature\]|\[NodeFeature:Eviction\]|\[NodeFeature:DynamicKubeletConfig\]"
+        - --test_args=--nodes=1 --focus="\[Serial\]" --skip="\[Flaky\]|\[Benchmark\]|\[NodeSpecialFeature:.+\]|\[NodeSpecialFeature\]|\[NodeAlphaFeature:.+\]|\[NodeAlphaFeature\]|\[NodeFeature:Eviction\]|\[NodeFeature:DynamicKubeletConfig\]|\[Feature:Docker\]"
+        - --timeout=240m
+        env:
+        - name: GOPATH
+          value: /go
+        resources:
+          limits:
+            cpu: 4
+            memory: 6Gi
+          requests:
+            cpu: 4
+            memory: 6Gi
+  - name: pull-kubernetes-node-kubelet-serial-dockershim
+    always_run: false
+    optional: true
+    skip_report: false
+    skip_branches:
+    - release-\d+\.\d+  # per-release image
+    annotations:
+      testgrid-dashboards: sig-node-presubmits
+      testgrid-tab-name: pr-node-kubelet-serial-dockershim
+    labels:
+      preset-service-account: "true"
+      preset-k8s-ssh: "true"
+    spec:
+      containers:
+      - image: gcr.io/k8s-staging-test-infra/kubekins-e2e:v20211111-d096cb0c5f-master
+        args:
+        - "--repo=k8s.io/$(REPO_NAME)=$(PULL_REFS)"
+        - --timeout=260
+        - --root=/go/src
+        - "--upload=gs://kubernetes-jenkins/pr-logs"
+        - --scenario=kubernetes_e2e
+        - --
+        - --deployment=node
+        - --gcp-zone=us-west1-b
+        - --node-args=--image-config-file=/workspace/test-infra/jobs/e2e_node/image-config-serial.yaml
+        - --node-test-args=LocalStorageCapacityIsolation=true --kubelet-flags="--cgroups-per-qos=true --cgroup-root=/"
+        - --node-tests=true
+        - --provider=gce
+        - --test_args=--nodes=1 --focus="\[Feature:Docker\]" --skip=""
         - --timeout=240m
         env:
         - name: GOPATH