apiVersion: apps/v1
kind: Deployment
metadata:
  name: alertmanager
  namespace: default
  labels:
    app: alertmanager
spec:
  replicas: 1
  strategy:
    type: Recreate
  selector:
    matchLabels:
      app: alertmanager
  template:
    metadata:
      labels:
        app: alertmanager
    spec:
      nodeSelector:
        node-role.kubernetes.io/control-plane: "true"
      containers:
      - name: alertmanager
        image: registry.t-aaron.com/prom/alertmanager:latest
        ports:
        - containerPort: 9093
        args:
        - "--config.file=/etc/alertmanager/alertmanager.yml"
        - "--storage.path=/alertmanager/"
        - "--web.external-url=http://alertmanager.example.com"
        - "--web.route-prefix=/"
        resources:
          requests:
            memory: "256Mi"
            cpu: "250m"
          limits:
            memory: "512Mi"
            cpu: "500m"
        volumeMounts:
        - name: alertmanager-config
          mountPath: /etc/alertmanager/
        - name: alertmanager-storage
          mountPath: /alertmanager/
      volumes:
      - name: alertmanager-config
        configMap:
          name: alertmanager-config
      - name: alertmanager-storage
        hostPath:
          path: /opt/alertmanager/data
          type: DirectoryOrCreate