Adding initial GitHub Actions

.github/actions/decrease-runners/action.yml

@@ -0,0 +1,20 @@
+name: 'Decrease Runner Count'
+description: 'Decrease the number of runners'
+inputs:
+  dec:
+    description: 'number to decrease'
+    required: true
+  min:
+    description: 'minimum number of runners'
+    required: false
+runs:
+  using: "composite"
+  steps:
+    - name: Install kubectl
+      uses: azure/setup-kubectl@v1
+    - name: Decrease runners with ${{ inputs.dec }}
+      shell: bash
+      run: |
+        source ./scripts/kubeconfig-runners.sh
+        ./scripts/decrease-runners.sh ${{ inputs.dec }} ${{ inputs.min }}
+        echo "::notice ::Runners decreased with ${{ inputs.dec }}"