apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: fluentd-cloudwatch
  labels:
    k8s-app: fluentd-cloudwatch
spec:
  template:
    metadata:
      labels:
        k8s-app: fluentd-cloudwatch
    spec:
      serviceAccountName: fluentd
      terminationGracePeriodSeconds: 30
      # Because the image's entrypoint requires to write on /fluentd/etc but we mount configmap there which is read-only,
      # this initContainers workaround or other is needed.
      # See https://github.com/fluent/fluentd-kubernetes-daemonset/issues/90
      initContainers:
        - name: copy-fluentd-config
          image: busybox
          command: ['sh', '-c', 'cp /config-volume/..data/* /fluentd/etc']
          volumeMounts:
            - name: config-volume
              mountPath: /config-volume
            - name: fluentdconf
              mountPath: /fluentd/etc
        - name: update-log-driver
          image: busybox
          command: ['sh','-c','']
      containers:
        - name: fluentd-cloudwatch
          image: fluent/fluentd-kubernetes-daemonset
          env:
            - name: REGION
              value: $(REGION)
            - name: CLUSTER_NAME
              value: $(CLUSTER_NAME)
            - name: CI_VERSION
              value: "k8s/1.0.1"
          resources:
            limits:
              memory: 400Mi
            requests:
              cpu: 100m
              memory: 200Mi
          volumeMounts:
            - name: config-volume
              mountPath: /config-volume
            - name: fluentdconf
              mountPath: /fluentd/etc
            - name: varlog
              mountPath: /var/log
            - name: varlibdockercontainers
              mountPath: /var/lib/docker/containers
              readOnly: true
            - name: runlogjournal
              mountPath: /run/log/journal
              readOnly: true
            - name: dmesg
              mountPath: /var/log/dmesg
              readOnly: true
      volumes:
        - name: config-volume
          configMap:
            name: fluentd-config
        - name: fluentdconf
          emptyDir: {}
        - name: varlog
          hostPath:
            path: /var/log
        - name: varlibdockercontainers
          hostPath:
            path: /var/lib/docker/containers
        - name: runlogjournal
          hostPath:
            path: /run/log/journal
        - name: dmesg
          hostPath:
            path: /var/log/dmesg