diff --git a/.github/workflows/monitor.yml b/.github/workflows/monitor.yml
new file mode 100644
index 0000000..7666d50
--- /dev/null
+++ b/.github/workflows/monitor.yml
@@ -0,0 +1,25 @@
+name: Monitor
+
+on:
+  schedule:
+    - cron: "0 */2 * * *"
+  workflow_dispatch:
+
+jobs:
+  monitor:
+    name: monitor
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        playbook:
+          - monitor
+    steps:
+      - uses: actions/checkout@v2
+
+      - name: Run playbook
+        uses: dawidd6/action-ansible-playbook@v2
+        with:
+          directory: ansible
+          playbook: playbooks/${{ matrix.playbook }}/playbook.yml
+          key: "${{ secrets.SSH_PRIVATE_KEY }}"
+          options: --user ansible --verbose --diff
diff --git a/ansible/inventories/hosts.ini b/ansible/inventories/hosts.ini
index f69dd59..d651e74 100644
--- a/ansible/inventories/hosts.ini
+++ b/ansible/inventories/hosts.ini
@@ -4,3 +4,26 @@ g1.crab2.darwinia.network
 [darwinia_nodes]
 g1.darwinia2.darwinia.network
 
+[monitor]
+g1.crab2.darwinia.network
+c1.crab2.darwinia.network
+g1.darwinia2.darwinia.network
+c1.darwinia2.darwinia.network
+g1.testnets.darwinia.network
+g2.testnets.darwinia.network
+g3.testnets.darwinia.network
+g1.generic.darwinia.network
+g2.generic.darwinia.network
+
+c1.darwinia-rpc.itering.io
+c2.darwinia-rpc.itering.io
+c1.crab-rpc.itering.io
+c2.crab-rpc.itering.io
+
+c1.collator.itering.io
+c2.collator.itering.io
+c3.collator.itering.io
+c4.collator.itering.io
+
+c5.collator.itering.io
+c6.collator.itering.io
diff --git a/ansible/playbooks/monitor/group_vars/monitor.yml b/ansible/playbooks/monitor/group_vars/monitor.yml
new file mode 100644
index 0000000..4ba9821
--- /dev/null
+++ b/ansible/playbooks/monitor/group_vars/monitor.yml
@@ -0,0 +1,3 @@
+
+monitor:
+  notify_slack_webhook: "{{ lookup('env', 'SLACK_INCOMING_WEBHOOK_URL') }}"
diff --git a/ansible/playbooks/monitor/playbook.yml b/ansible/playbooks/monitor/playbook.yml
new file mode 100644
index 0000000..fdefde7
--- /dev/null
+++ b/ansible/playbooks/monitor/playbook.yml
@@ -0,0 +1,3 @@
+- hosts: monitor
+  roles:
+    - monitor
diff --git a/ansible/roles/monitor/defaults/main.yml b/ansible/roles/monitor/defaults/main.yml
index f1b5300..59ed131 100644
--- a/ansible/roles/monitor/defaults/main.yml
+++ b/ansible/roles/monitor/defaults/main.yml
@@ -5,6 +5,7 @@ monitor:
   notify_slack_channel: 'darwinia-alert-notification'
   server_name: ''
   check_disks:
+    - /dev/sda
     - /dev/sdb
   alert_thread_cpu_p2: 90
   alert_thread_cpu_p1: 98