Add cadvisor support with monitoring stack: alertmanager, loki, node-red, promtail

roles/alertmanager/tasks/main.yml

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+---
+- name: Create Alertmanager directories
+  file:
+    path: "{{ item }}"
+    state: directory
+    owner: root
+    group: root
+    mode: '0755'
+  loop:
+    - /etc/alertmanager
+    - /var/lib/alertmanager
+
+- name: Deploy Alertmanager configuration
+  template:
+    src: alertmanager.yml.j2
+    dest: /etc/alertmanager/alertmanager.yml
+    owner: root
+    group: root
+    mode: '0644'
+
+- name: Run Alertmanager container
+  docker_container:
+    name: alertmanager
+    image: prom/alertmanager:latest
+    state: started
+    restart_policy: always
+    ports:
+      - "9093:9093"
+    volumes:
+      - /etc/alertmanager/alertmanager.yml:/etc/alertmanager/alertmanager.yml
+      - /var/lib/alertmanager:/alertmanager
+    command: --config.file=/etc/alertmanager/alertmanager.yml --storage.path=/alertmanager
+  tags: alertmanager

roles/alertmanager/templates/alertmanager.yml.j2

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+global:
+  smtp_smarthost: 'localhost:25'
+  smtp_from: 'alertmanager@example.com'
+
+route:
+  group_by: ['alertname']
+  group_wait: 30s
+  group_interval: 5m
+  repeat_interval: 12h
+  receiver: 'email-notifications'
+
+receivers:
+- name: 'email-notifications'
+  email_configs:
+  - to: 'alerts@example.com'
+    send_resolved: true
+
+- name: 'webhook-notifications'
+  webhook_configs:
+  - url: 'http://node-red:1880/alerts'
+    send_resolved: true