added support for telegram notifications

tasks/main.yml

@@ -16,3 +16,33 @@
     mode: 0644
     dest: /etc/prometheus/alertmanager.yml
     content: "{{ prometheus_alertmanager.config|to_nice_yaml(indent=2) }}"
+
+- name: setup telegram bot
+  when: prometheus_alertmanager.telegrambot
+  block:
+  - name: install dependencies
+    apt:
+      pkg:
+        - python3-flask
+        - python3-dateutil
+        - python3-gevent
+        - python3-pip
+#        - python3-telegram-bot
+  - pip:
+      name: python-telegram-bot
+      executable: pip3
+  - name: deploy telegram bot
+    notify: restart telegram bot
+    template:
+      src: telegram-bot.py.j2
+      dest: /usr/local/bin/prometheus-telegram-bot.py
+      mode: 0755
+      owner: root
+      group: root
+  - name: Copy systemd service file
+    notify: restart telegram bot
+    copy:
+      src: prometheus-telegram-bot.service
+      dest: /etc/systemd/system
+      owner: root
+      group: root