# services/monitoring/vmalert-atlas-availability.yaml
apiVersion: v1
kind: ConfigMap
metadata:
  name: vmalert-atlas-availability-rules
  namespace: monitoring
data:
  atlas-availability.yaml: |
    groups:
      - name: atlas.availability
        interval: 15m
        eval_offset: 7m
        rules:
          - record: atlas:availability:ratio_1h
            expr: |
              avg_over_time((
                min(
                  (
                    sum(kube_node_status_condition{condition="Ready",status="true",node=~"titan-0a|titan-0b|titan-0c"})
                    / 3
                  ),
                  (
                    sum(kube_deployment_status_replicas_available{namespace=~"traefik|kube-system",deployment="traefik"})
                    / clamp_min(sum(kube_deployment_spec_replicas{namespace=~"traefik|kube-system",deployment="traefik"}), 1)
                  )
                )
              )[1h:5m])
            labels:
              scope: atlas
              rollup: hourly
          - record: atlas:availability:ratio_365d
            expr: |
              avg_over_time((
                min(
                  (
                    sum(kube_node_status_condition{condition="Ready",status="true",node=~"titan-0a|titan-0b|titan-0c"})
                    / 3
                  ),
                  (
                    sum(kube_deployment_status_replicas_available{namespace=~"traefik|kube-system",deployment="traefik"})
                    / clamp_min(sum(kube_deployment_spec_replicas{namespace=~"traefik|kube-system",deployment="traefik"}), 1)
                  )
                )
              )[365d:6h])
            labels:
              scope: atlas
              rollup: yearly

---

apiVersion: v1
kind: ServiceAccount
metadata:
  name: vmalert-atlas-availability
  namespace: monitoring

---

apiVersion: apps/v1
kind: Deployment
metadata:
  name: vmalert-atlas-availability
  namespace: monitoring
  labels:
    app: vmalert-atlas-availability
spec:
  replicas: 1
  revisionHistoryLimit: 3
  selector:
    matchLabels:
      app: vmalert-atlas-availability
  template:
    metadata:
      labels:
        app: vmalert-atlas-availability
      annotations:
        bstein.dev/rules-revision: "2026-05-10-availability-rollup-v2"
    spec:
      serviceAccountName: vmalert-atlas-availability
      affinity:
        nodeAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            nodeSelectorTerms:
              - matchExpressions:
                  - key: kubernetes.io/hostname
                    operator: NotIn
                    values:
                      - titan-22
                      - titan-24
      containers:
        - name: vmalert
          image: victoriametrics/vmalert:v1.113.0
          args:
            - -datasource.url=http://victoria-metrics-single-server:8428
            - -remoteWrite.url=http://victoria-metrics-single-server:8428
            - -rule=/etc/vmalert/rules/*.yaml
            - -evaluationInterval=15m
            - -httpListenAddr=:8880
          ports:
            - name: http
              containerPort: 8880
          readinessProbe:
            tcpSocket:
              port: http
            initialDelaySeconds: 5
            periodSeconds: 10
          livenessProbe:
            tcpSocket:
              port: http
            initialDelaySeconds: 20
            periodSeconds: 30
          resources:
            requests:
              cpu: 25m
              memory: 64Mi
            limits:
              cpu: 500m
              memory: 256Mi
          volumeMounts:
            - name: rules
              mountPath: /etc/vmalert/rules
              readOnly: true
      volumes:
        - name: rules
          configMap:
            name: vmalert-atlas-availability-rules

---

apiVersion: v1
kind: Service
metadata:
  name: vmalert-atlas-availability
  namespace: monitoring
  annotations:
    prometheus.io/scrape: "true"
    prometheus.io/port: "8880"
spec:
  selector:
    app: vmalert-atlas-availability
  ports:
    - name: http
      port: 8880
      targetPort: http