Add new job to test Kubernetes 1.21 (#1304)

.github/workflows/helm.yaml

@@ -40,3 +40,28 @@ jobs:
           chmod +x kubectl
           mv kubectl /usr/local/bin
           "${GITHUB_WORKSPACE}/testing/check-helm.sh"
+  build-floor:
+    # The type of runner that the job will run on
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        go-version: [1.18.x]
+        os: [ubuntu-latest]
+
+    # Steps represent a sequence of tasks that will be executed as part of the job
+    steps:
+      # Checks-out your repository under $GITHUB_WORKSPACE, so your job can access it
+      - uses: actions/checkout@v2
+      - uses: actions/setup-go@v2
+        with:
+          go-version: ${{ matrix.go-version }}
+
+      # Runs a set of commands using the runners shell
+      - name: Deploy a MinIO Tenant on Kind
+        env:
+          TEST_FLOOR: true
+        run: |
+          curl -sLO "https://dl.k8s.io/release/v1.23.1/bin/linux/amd64/kubectl" -o kubectl
+          chmod +x kubectl
+          mv kubectl /usr/local/bin
+          "${GITHUB_WORKSPACE}/testing/check-helm.sh"

testing/common.sh

@@ -40,7 +40,11 @@ die() {
 try() { "$@" || die "cannot $*"; }
 
 function setup_kind() {
-  try kind create cluster --config "${SCRIPT_DIR}/kind-config.yaml"
+  if [ "$TEST_FLOOR" = "true" ]; then
+    try kind create cluster --config "${SCRIPT_DIR}/kind-config-floor.yaml"
+  else
+    try kind create cluster --config "${SCRIPT_DIR}/kind-config.yaml"
+  fi
   echo "Kind is ready"
   try kubectl get nodes
 }

testing/kind-config-floor.yaml

@@ -0,0 +1,14 @@
+# four node (two workers) cluster config
+kind: Cluster
+apiVersion: kind.x-k8s.io/v1alpha4
+nodes:
+  - role: control-plane
+    image: kindest/node:v1.21.14
+  - role: worker
+    image: kindest/node:v1.21.14
+  - role: worker
+    image: kindest/node:v1.21.14
+  - role: worker
+    image: kindest/node:v1.21.14
+  - role: worker
+    image: kindest/node:v1.21.14