fluentd-configmap.yaml

---
apiVersion: v1
kind: ConfigMap
metadata:
  name: fluentd-config
  namespace: kube-system
data:
  fluent.conf: |-
   <match **>
       @type elasticsearch
       @id out_es
       @log_level info
       include_tag_key true
       host "#{ENV['FLUENT_ELASTICSEARCH_HOST']}"
       port "#{ENV['FLUENT_ELASTICSEARCH_PORT']}"
       scheme "#{ENV['FLUENT_ELASTICSEARCH_SCHEME'] || 'http'}"
       ssl_verify "#{ENV['FLUENT_ELASTICSEARCH_SSL_VERIFY'] || 'true'}"
       user "#{ENV['FLUENT_ELASTICSEARCH_USER']}"
       password "#{ENV['FLUENT_ELASTICSEARCH_PASSWORD']}"
       reload_connections "#{ENV['FLUENT_ELASTICSEARCH_RELOAD_CONNECTIONS'] || 'true'}"
       logstash_prefix "#{ENV['FLUENT_ELASTICSEARCH_LOGSTASH_PREFIX'] || 'logstash'}"
       logstash_format true
       type_name fluentd
       <buffer>
         flush_thread_count "#{ENV['FLUENT_ELASTICSEARCH_BUFFER_FLUSH_THREAD_COUNT'] || '8'}"
         flush_interval "#{ENV['FLUENT_ELASTICSEARCH_BUFFER_FLUSH_INTERVAL'] || '5s'}"
         chunk_limit_size "#{ENV['FLUENT_ELASTICSEARCH_BUFFER_CHUNK_LIMIT_SIZE'] || '2M'}"
         queue_limit_length "#{ENV['FLUENT_ELASTICSEARCH_BUFFER_QUEUE_LIMIT_LENGTH'] || '32'}"
         retry_max_interval "#{ENV['FLUENT_ELASTICSEARCH_BUFFER_RETRY_MAX_INTERVAL'] || '30'}"
         retry_forever true
       </buffer>
    </match>
    
    <source>
      @type tail
      @id in_tail_container_logs
      path /var/log/containers/*.log
      exclude_path ["/var/log/containers/kube-apiserver*"]
      pos_file /var/log/fluentd-containers.log.pos
      tag kubernetes.*
      read_from_head true
      format json
      time_format %Y-%m-%dT%H:%M:%S.%NZ
    </source>
    
    <source>
      @type tail
      @id in_tail_minion
      path /var/log/salt/minion
      pos_file /var/log/fluentd-salt.pos
      tag salt
      format /^(?<time>[^ ]* [^ ,]*)[^\[]*\[[^\]]*\]\[(?<severity>[^ \]]*) *\] (?<message>.*)$/
      time_format %Y-%m-%d %H:%M:%S
    </source>
    
    <source>
      @type tail
      @id in_tail_startupscript
      path /var/log/startupscript.log
      pos_file /var/log/fluentd-startupscript.log.pos
      tag startupscript
      format syslog
    </source>
    
    <source>
      @type tail
      @id in_tail_docker
      path /var/log/docker.log
      pos_file /var/log/fluentd-docker.log.pos
      tag docker
      format /^time="(?<time>[^)]*)" level=(?<severity>[^ ]*) msg="(?<message>[^"]*)"( err="(?<error>[^"]*)")?( statusCode=($<status_code>\d+))?/
    </source>
    
    <source>
      @type tail
      @id in_tail_etcd
      path /var/log/etcd.log
      pos_file /var/log/fluentd-etcd.log.pos
      tag etcd
      format none
    </source>
    
    <source>
      @type tail
      @id in_tail_kubelet
      multiline_flush_interval 5s
      path /var/log/kubelet.log
      pos_file /var/log/fluentd-kubelet.log.pos
      tag kubelet
      format kubernetes
    </source>
    
    <source>
      @type tail
      @id in_tail_kube_proxy
      multiline_flush_interval 5s
      path /var/log/kube-proxy.log
      pos_file /var/log/fluentd-kube-proxy.log.pos
      tag kube-proxy
      format kubernetes
    </source>
    
    <source>
      @type tail
      @id in_tail_kube_apiserver
      multiline_flush_interval 5s
      path /var/log/kube-apiserver.log
      pos_file /var/log/fluentd-kube-apiserver.log.pos
      tag kube-apiserver
      format kubernetes
    </source>
    
    <source>
      @type tail
      @id in_tail_kube_controller_manager
      multiline_flush_interval 5s
      path /var/log/kube-controller-manager.log
      pos_file /var/log/fluentd-kube-controller-manager.log.pos
      tag kube-controller-manager
      format kubernetes
    </source>
    
    <source>
      @type tail
      @id in_tail_kube_scheduler
      multiline_flush_interval 5s
      path /var/log/kube-scheduler.log
      pos_file /var/log/fluentd-kube-scheduler.log.pos
      tag kube-scheduler
      format kubernetes
    </source>
    
    <source>
      @type tail
      @id in_tail_rescheduler
      multiline_flush_interval 5s
      path /var/log/rescheduler.log
      pos_file /var/log/fluentd-rescheduler.log.pos
      tag rescheduler
      format kubernetes
    </source>
    
    <source>
      @type tail
      @id in_tail_glbc
      multiline_flush_interval 5s
      path /var/log/glbc.log
      pos_file /var/log/fluentd-glbc.log.pos
      tag glbc
      format kubernetes
    </source>
    
    <source>
      @type tail
      @id in_tail_cluster_autoscaler
      multiline_flush_interval 5s
      path /var/log/cluster-autoscaler.log
      pos_file /var/log/fluentd-cluster-autoscaler.log.pos
      tag cluster-autoscaler
      format kubernetes
    </source>
    
    # Example:
    # 2017-02-09T00:15:57.992775796Z AUDIT: id="90c73c7c-97d6-4b65-9461-f94606ff825f" ip="104.132.1.72" method="GET" user="kubecfg" as="<self>" asgroups="<lookup>" namespace="default" uri="/api/v1/namespaces/default/pods"
    # 2017-02-09T00:15:57.993528822Z AUDIT: id="90c73c7c-97d6-4b65-9461-f94606ff825f" response="200"
    <source>
      @type tail
      @id in_tail_kube_apiserver_audit
      multiline_flush_interval 5s
      path /var/log/kubernetes/kube-apiserver-audit.log
      pos_file /var/log/kube-apiserver-audit.log.pos
      tag kube-apiserver-audit
      format multiline
      format_firstline /^\S+\s+AUDIT:/
      # Fields must be explicitly captured by name to be parsed into the record.
      # Fields may not always be present, and order may change, so this just looks
      # for a list of key="\"quoted\" value" pairs separated by spaces.
      # Unknown fields are ignored.
      # Note: We can't separate query/response lines as format1/format2 because
      #       they don't always come one after the other for a given query.
      format1 /^(?<time>\S+) AUDIT:(?: (?:id="(?<id>(?:[^"\\]|\\.)*)"|ip="(?<ip>(?:[^"\\]|\\.)*)"|method="(?<method>(?:[^"\\]|\\.)*)"|user="(?<user>(?:[^"\\]|\\.)*)"|groups="(?<groups>(?:[^"\\]|\\.)*)"|as="(?<as>(?:[^"\\]|\\.)*)"|asgroups="(?<asgroups>(?:[^"\\]|\\.)*)"|namespace="(?<namespace>(?:[^"\\]|\\.)*)"|uri="(?<uri>(?:[^"\\]|\\.)*)"|response="(?<response>(?:[^"\\]|\\.)*)"|\w+="(?:[^"\\]|\\.)*"))*/
      time_format %FT%T.%L%Z
    </source>
    
    <filter kubernetes.**>
      @type kubernetes_metadata
      @id filter_kube_metadata
    </filter>
    <filter kubernetes.**>
      @type record_transformer
      enable_ruby
      # Remove unwanted metadata keys
      <record>
      for_remove ${record["docker"].delete("container_id");record["kubernetes"].delete("annotations"); record["kubernetes"]["labels"].delete("pod-template-hash"); record["kubernetes"].delete("master_url"); record["kubernetes"].delete("pod_id"); record["kubernetes"].delete("namespace_id");}
      </record>
      remove_keys for_remove
    </filter>

fluentd-elasticsearch-ds.yaml

---
apiVersion: v1
kind: ServiceAccount
metadata:
  name: fluentd
  namespace: kube-system

---
apiVersion: rbac.authorization.k8s.io/v1beta1
kind: ClusterRole
metadata:
  name: fluentd
  namespace: kube-system
rules:
- apiGroups:
  - ""
  resources:
  - pods
  - namespaces
  verbs:
  - get
  - list
  - watch

---
kind: ClusterRoleBinding
apiVersion: rbac.authorization.k8s.io/v1beta1
metadata:
  name: fluentd
roleRef:
  kind: ClusterRole
  name: fluentd
  apiGroup: rbac.authorization.k8s.io
subjects:
- kind: ServiceAccount
  name: fluentd
  namespace: kube-system
---
apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: fluentd
  namespace: kube-system
  labels:
    k8s-app: fluentd-logging
    version: v1
spec:

  selector:
    matchLabels:
      k8s-app: fluentd-logging
      version: v1
  template:
    metadata:
      labels:
        k8s-app: fluentd-logging
        version: v1
    spec:
      serviceAccount: fluentd
      serviceAccountName: fluentd
      tolerations:
      - key: node-role.kubernetes.io/master
        effect: NoSchedule
      containers:
      - name: fluentd
        image: fluent/fluentd-kubernetes-daemonset:v1-debian-elasticsearch
        env:
            - name: FLUENT_ELASTICSEARCH_HOST
              value: 127.0.0.1
            - name: FLUENT_ELASTICSEARCH_PORT
              value: '9200'
            - name: FLUENT_ELASTICSEARCH_SCHEME
              value: http
            - name: FLUENT_ELASTICSEARCH_SSL_VERIFY
              value: 'false'
            - name: FLUENT_ELASTICSEARCH_SSL_VERSION
              value: TLSv1_2
        resources:
          limits:
            memory: 200Mi
          requests:
            cpu: 100m
            memory: 200Mi
        volumeMounts:
        - name: varlog
          mountPath: /var/log
        - name: varlibdockercontainers
          mountPath: /var/lib/docker/containers
          readOnly: true
        - name: config
          mountPath: /fluentd/etc/fluent.conf
          subPath: fluent.conf
      terminationGracePeriodSeconds: 30
      volumes:
      - name: varlog
        hostPath:
          path: /var/log
      - name: varlibdockercontainers
        hostPath:
          path: /var/lib/docker/containers
      - name: config
        configMap:
          name: fluentd-config