add healthchecks

.github/workflows/healthcheck.yml

@@ -0,0 +1,37 @@
+name: healthcheck
+
+on:
+  workflow_dispatch:
+  push:
+  schedule:
+  - cron: "0 7 * * *"
+
+env:
+  HOSTS: '[
+    "test",
+    "test"
+    ]'
+
+jobs:
+  healthcheck:
+    runs-on: ubuntu-latest
+    steps:
+    - name: zerotier login
+      uses: zerotier/github-action@v1.0.1
+      with:
+        network_id: ${{ secrets.ZEROTIER_NETWORK_ID }}
+        auth_token: ${{ secrets.ZEROTIER_CENTRAL_TOKEN }}
+
+    - name: ping host
+      shell: bash
+      run: |
+        for val in ${{ env.HOSTS }}; do
+          echo $val
+        done
+        # count=10
+        # while ! ping -c 1 ${{ env.HOSTS }} ; do
+        #   echo "waiting..." ;
+        #   sleep 1 ;
+        #   let count=count-1
+        # done
+        # echo "ping success"