apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: promtail-daemonset
  namespace: monitoring
spec:
  selector:
    matchLabels:
      name: promtail
  template:
    metadata:
      labels:
        name: promtail
    spec:
      serviceAccount: promtail-serviceaccount
      containers:
      - name: promtail-container
        image: grafana/promtail
        args:
        - -config.file=/etc/promtail/promtail.yaml
        env: 
        - name: 'HOSTNAME' # needed when using kubernetes_sd_configs
          valueFrom:
            fieldRef:
              fieldPath: 'spec.nodeName'
        volumeMounts:
        - name: logs
          mountPath: /var/log
        - name: promtail-config
          mountPath: /etc/promtail
        - mountPath: /var/lib/docker/containers
          name: varlibdockercontainers
          readOnly: true
      tolerations:
        - key: type
          operator: Equal
          value: services
          effect: NoSchedule
      volumes:
      - name: logs
        hostPath:
          path: /var/log
      - name: varlibdockercontainers
        hostPath:
          path: /var/lib/docker/containers
      - name: promtail-config
        configMap:
          name: promtail-config