apiVersion: apps/v1
kind: Deployment
metadata:
  name: overseer-k8s-event-watcher
  namespace: overseer
  labels:
    app: overseer-k8s-event-watcher
spec:
  selector:
    matchLabels:
      app: overseer-k8s-event-watcher
  # Must be only one to not generate duplicates
  replicas: 1
  template:
    metadata:
      labels:
        app: overseer-k8s-event-watcher
    spec:
      serviceAccount: overseer-k8s-event-watcher
      affinity:
        podAntiAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
            - labelSelector:
                matchExpressions:
                  - key: app
                    operator: In
                    values:
                      - overseer-k8s-event-watcher
              topologyKey: kubernetes.io/hostname
      containers:
        - name: overseer-k8s-event-watcher
          image: cmaster11/overseer:release-1.11-4
          args:
            - k8s-event-watcher
            - -redis-host
            - redis:6379
            - -verbose
            # A tag to identify the current overseer workers.
            # Useful when dealing with multiple overseer workers in multiple Kubernetes clusters.
            - -tag
            - my-k8s-cluster
            # The actual config of the event watcher
            - -watcher-config
            - /opt/overseer/config/event-watcher-config.yaml
          volumeMounts:
            - name: overseer-k8s-event-watcher-config
              mountPath: /opt/overseer/config
      volumes:
        - name: overseer-k8s-event-watcher-config
          configMap:
            name: overseer-k8s-event-watcher-config
---
apiVersion: v1
kind: ConfigMap
metadata:
  name: overseer-k8s-event-watcher-config
  namespace: overseer
data:
  event-watcher-config.yaml: |
    # Do we want to only trigger alerts for future events?
    sinceNow: true
    # Do we want to find failed jobs/cron jobs?
    filters:
      - objectKind: Job
        eventReason: BackoffLimitExceeded
        # Watch only for specific namespace
        # objectNamespace: my-namespace