3 files changed, 52 insertions, 0 deletions
diff --git a/roles/common/files/onmon.service b/roles/common/files/onmon.service
new file mode 100644
index 0000000..8ac3020
--- /dev/null
+++ b/roles/common/files/onmon.service
@@ -0,0 +1,10 @@
+[Unit]
+Description=Online monitor
+Requires=network-online.target
+After=network-online.target
+
+[Service]
+ExecStart=/usr/local/bin/onmon.sh
+
+[Install]
+WantedBy=default.target
diff --git a/roles/common/files/onmon.sh b/roles/common/files/onmon.sh
new file mode 100644
index 0000000..66a7974
--- /dev/null
+++ b/roles/common/files/onmon.sh
@@ -0,0 +1,21 @@
+#!/bin/bash
+
+ping -nq -W 1 -c 1 1.1.1.1 > /dev/null 2>&1
+state=$?
+oldstate=$state
+
+while true; do
+  ping -nq -W 1 -c 1 1.1.1.1 > /dev/null 2>&1
+  state=$?
+
+  if [[ $oldstate -ne $state ]]; then
+    if [[ $state -eq 0 ]]; then
+      echo "Device went back online"
+    else
+      echo "Device went offline"
+    fi
+  fi
+
+  oldstate=$state
+  sleep 5
+done
diff --git a/roles/common/tasks/main.yml b/roles/common/tasks/main.yml
index 20d7ddf..02d9392 100644
--- a/roles/common/tasks/main.yml
+++ b/roles/common/tasks/main.yml
@@ -10,6 +10,7 @@
       - ldnsutils
       - htop
       - unattended-upgrades
+      - jq
     state: present
 - name: Install mailer
   package:
@@ -19,3 +20,23 @@
   when:
     - mail_nullmailer is defined
     - mail_nullmailer
+- name: Copy service executable
+  copy:
+    src: files/onmon.sh
+    dest: /usr/local/bin/onmon.sh
+    mode: "0750"
+    owner: "root"
+    group: "root"
+- name: Copy service file
+  copy:
+    src: files/onmon.service
+    dest: /etc/systemd/system/onmon.service
+    mode: "0640"
+    owner: "root"
+    group: "root"
+- name: Ensure online monitor is enabled
+  systemd:
+    name: onmon.service
+    enabled: true
+    state: started
+    daemon_reload: true