k8s/fluentd.yml

#
# This file describes a cluster of 3 fluentd forwarders that
# send logs to a cluster of 2 fluentd aggregators: one active
# and one standby.
#
# The active fluentd aggregator
#
apiVersion: v1
kind: Service
metadata:
  name: fluentdactv
spec:
  clusterIP: None
  selector:
    app: fluentdactv
  ports:
  - protocol: TCP
    port: 24224
    targetPort: 24224
---
#
# Ensure that the active aggregator is not deployed to the
# same node as the standby
#
apiVersion: apps/v1beta1
kind: Deployment
metadata:
  name: fluentdactv
spec:
  replicas: 1
  template:
    metadata:
      labels:
        app: fluentdactv
    spec:
      terminationGracePeriodSeconds: 10
      affinity:
        podAntiAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
          - labelSelector:
              matchExpressions:
              - key: app
                operator: In
                values:
                - fluentdstby
            topologyKey: kubernetes.io/hostname
      containers:
      - name: fluentdactv
        image: voltha-fluentd
        imagePullPolicy: Never
        volumeMounts:
        - name: fluentd-log
          mountPath: /fluentd/log
        ports:
        - containerPort: 24224
        env:
        - name: FLUENTD_CONF
          value: fluent-agg.conf
      volumes:
      - name: fluentd-log
        hostPath:
          path: /var/log/voltha/logging_volume
          type: Directory
---
#
# The standby fluentd aggregator
#
apiVersion: v1
kind: Service
metadata:
  name: fluentdstby
spec:
  clusterIP: None
  selector:
    app: fluentdstby
  ports:
  - protocol: TCP
    port: 24224
    targetPort: 24224
---
#
# Ensure thet the standby aggregator is not deployed to the
# same node as the active
#
apiVersion: apps/v1beta1
kind: Deployment
metadata:
  name: fluentdstby
spec:
  replicas: 1
  template:
    metadata:
      labels:
        app: fluentdstby
    spec:
      terminationGracePeriodSeconds: 10
      affinity:
        podAntiAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
          - labelSelector:
              matchExpressions:
              - key: app
                operator: In
                values:
                - fluentdactv
            topologyKey: kubernetes.io/hostname
      containers:
      - name: fluentdstby
        image: voltha-fluentd
        imagePullPolicy: Never
        volumeMounts:
        - name: fluentd-log
          mountPath: /fluentd/log
        ports:
        - containerPort: 24224
        env:
        - name: FLUENTD_CONF
          value: fluent-agg.conf
      volumes:
      - name: fluentd-log
        hostPath:
          path: /var/log/voltha/logging_volume
          type: Directory
---
#
# The cluster of fluentd forwarders
#
apiVersion: v1
kind: Service
metadata:
  name: fluentd
spec:
  clusterIP: None
  selector:
    app: fluentd
  ports:
  - protocol: TCP
    port: 24224
    targetPort: 24224
---
apiVersion: apps/v1beta1
kind: Deployment
metadata:
  name: fluentd
spec:
  replicas: 3
  template:
    metadata:
      labels:
        app: fluentd
    spec:
      terminationGracePeriodSeconds: 10
      affinity:
        podAntiAffinity:
          requiredDuringSchedulingIgnoredDuringExecution:
          - labelSelector:
              matchExpressions:
              - key: app
                operator: In
                values:
                - fluentd
            topologyKey: kubernetes.io/hostname
      containers:
      - name: fluentd
        image: voltha-fluentd
        imagePullPolicy: Never
        ports:
        - containerPort: 24224
        env:
        - name: FLUENTD_CONF
          value: fluent.conf