Patch 1

ElK

@@ -0,0 +1,317 @@
+#
+# Fluentd configuration - this installs onto all nodes and gathers all logs
+# A separate yaml configures Fluentd
+#
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: fluentd-es
+  namespace: kube-system
+  labels:
+    k8s-app: fluentd-es
+    kubernetes.io/cluster-service: "true"
+    addonmanager.kubernetes.io/mode: Reconcile
+---
+kind: ClusterRole
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: fluentd-es
+  labels:
+    k8s-app: fluentd-es
+    kubernetes.io/cluster-service: "true"
+    addonmanager.kubernetes.io/mode: Reconcile
+rules:
+- apiGroups:
+  - ""
+  resources:
+  - "namespaces"
+  - "pods"
+  verbs:
+  - "get"
+  - "watch"
+  - "list"
+---
+kind: ClusterRoleBinding
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: fluentd-es
+  labels:
+    k8s-app: fluentd-es
+    kubernetes.io/cluster-service: "true"
+    addonmanager.kubernetes.io/mode: Reconcile
+subjects:
+- kind: ServiceAccount
+  name: fluentd-es
+  namespace: kube-system
+  apiGroup: ""
+roleRef:
+  kind: ClusterRole
+  name: fluentd-es
+  apiGroup: ""
+---
+apiVersion: apps/v1
+kind: DaemonSet
+metadata:
+  name: fluentd-es-v2.2.0
+  namespace: kube-system
+  labels:
+    k8s-app: fluentd-es
+    version: v2.2.0
+    kubernetes.io/cluster-service: "true"
+    addonmanager.kubernetes.io/mode: Reconcile
+spec:
+  selector:
+    matchLabels:
+      k8s-app: fluentd-es
+      version: v2.2.0
+  template:
+    metadata:
+      labels:
+        k8s-app: fluentd-es
+        kubernetes.io/cluster-service: "true"
+        version: v2.2.0
+      # This annotation ensures that fluentd does not get evicted if the node
+      # supports critical pod annotation based priority scheme.
+      # Note that this does not guarantee admission on the nodes (#40573).
+      annotations:
+        scheduler.alpha.kubernetes.io/critical-pod: ''
+        seccomp.security.alpha.kubernetes.io/pod: 'docker/default'
+    spec:
+      priorityClassName: system-node-critical
+      serviceAccountName: fluentd-es
+      containers:
+      - name: fluentd-es
+        image: k8s.gcr.io/fluentd-elasticsearch:v2.2.0
+        env:
+        - name: FLUENTD_ARGS
+          value: --no-supervisor -q
+        resources:
+          limits:
+            memory: 500Mi
+          requests:
+            cpu: 100m
+            memory: 200Mi
+        volumeMounts:
+        - name: varlog
+          mountPath: /var/log
+        - name: varlibdockercontainers
+          mountPath: /var/lib/docker/containers
+          readOnly: true
+        - name: config-volume
+          mountPath: /etc/fluent/config.d
+      # nodeSelector:
+      #  beta.kubernetes.io/fluentd-ds-ready: "true"
+      terminationGracePeriodSeconds: 30
+      volumes:
+      - name: varlog
+        hostPath:
+          path: /var/log
+      - name: varlibdockercontainers
+        hostPath:
+          path: /var/lib/docker/containers
+      - name: config-volume
+        configMap:
+          name: fluentd-es-config-v0.1.4
+
+
+---
+
+#
+# Elastic Search configuration
+#
+apiVersion: v1
+kind: Service
+metadata:
+  name: elasticsearch-logging
+  namespace: kube-system
+  labels:
+    k8s-app: elasticsearch-logging
+    kubernetes.io/cluster-service: "true"
+    addonmanager.kubernetes.io/mode: Reconcile
+    kubernetes.io/name: "Elasticsearch"
+spec:
+  ports:
+  - port: 9200
+    protocol: TCP
+    targetPort: db
+  selector:
+    k8s-app: elasticsearch-logging
+---
+# RBAC authn and authz
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: elasticsearch-logging
+  namespace: kube-system
+  labels:
+    k8s-app: elasticsearch-logging
+    kubernetes.io/cluster-service: "true"
+    addonmanager.kubernetes.io/mode: Reconcile
+---
+kind: ClusterRole
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  name: elasticsearch-logging
+  labels:
+    k8s-app: elasticsearch-logging
+    kubernetes.io/cluster-service: "true"
+    addonmanager.kubernetes.io/mode: Reconcile
+rules:
+- apiGroups:
+  - ""
+  resources:
+  - "services"
+  - "namespaces"
+  - "endpoints"
+  verbs:
+  - "get"
+---
+kind: ClusterRoleBinding
+apiVersion: rbac.authorization.k8s.io/v1
+metadata:
+  namespace: kube-system
+  name: elasticsearch-logging
+  labels:
+    k8s-app: elasticsearch-logging
+    kubernetes.io/cluster-service: "true"
+    addonmanager.kubernetes.io/mode: Reconcile
+subjects:
+- kind: ServiceAccount
+  name: elasticsearch-logging
+  namespace: kube-system
+  apiGroup: ""
+roleRef:
+  kind: ClusterRole
+  name: elasticsearch-logging
+  apiGroup: ""
+---
+apiVersion: apps/v1
+kind: StatefulSet
+metadata:
+  name: elasticsearch-logging
+  namespace: kube-system
+  labels:
+    k8s-app: elasticsearch-logging
+    version: v6.2.5
+    kubernetes.io/cluster-service: "true"
+    addonmanager.kubernetes.io/mode: Reconcile
+spec:
+  serviceName: elasticsearch-logging
+  replicas: 2
+  selector:
+    matchLabels:
+      k8s-app: elasticsearch-logging
+      version: v6.2.5
+  template:
+    metadata:
+      labels:
+        k8s-app: elasticsearch-logging
+        version: v6.2.5
+        kubernetes.io/cluster-service: "true"
+    spec:
+      serviceAccountName: elasticsearch-logging
+      containers:
+      - image: k8s.gcr.io/elasticsearch:v6.2.5
+        name: elasticsearch-logging
+        resources:
+          # need more cpu upon initialization, therefore burstable class
+          limits:
+            cpu: 1000m
+          requests:
+            cpu: 100m
+        ports:
+        - containerPort: 9200
+          name: db
+          protocol: TCP
+        - containerPort: 9300
+          name: transport
+          protocol: TCP
+        volumeMounts:
+        - name: elasticsearch-logging
+          mountPath: /data
+        env:
+        - name: "NAMESPACE"
+          valueFrom:
+            fieldRef:
+              fieldPath: metadata.namespace
+      # Elasticsearch requires vm.max_map_count to be at least 262144.
+      # If your OS already sets up this number to a higher value, feel free
+      # to remove this init container.
+      initContainers:
+      - image: alpine:3.6
+        command: ["/sbin/sysctl", "-w", "vm.max_map_count=262144"]
+        name: elasticsearch-logging-init
+        securityContext:
+          privileged: true
+  volumeClaimTemplates:
+  - metadata:
+      name: elasticsearch-logging
+    spec:
+      storageClassName: cloud-ssd
+      accessModes: [ "ReadWriteOnce" ]
+      resources:
+        requests:
+          storage: 31Gi
+---
+
+#
+# Finally, Kibana - for visualising the results
+#
+
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: kibana-logging
+  namespace: kube-system
+  labels:
+    k8s-app: kibana-logging
+    kubernetes.io/cluster-service: "true"
+    addonmanager.kubernetes.io/mode: Reconcile
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      k8s-app: kibana-logging
+  template:
+    metadata:
+      labels:
+        k8s-app: kibana-logging
+      annotations:
+        seccomp.security.alpha.kubernetes.io/pod: 'docker/default'
+    spec:
+      containers:
+      - name: kibana-logging
+        image: docker.elastic.co/kibana/kibana-oss:6.2.4
+        resources:
+          # need more cpu upon initialization, therefore burstable class
+          limits:
+            cpu: 1000m
+          requests:
+            cpu: 100m
+        env:
+          - name: ELASTICSEARCH_URL
+            value: http://elasticsearch-logging:9200
+        ports:
+        - containerPort: 5601
+          name: ui
+          protocol: TCP
+
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: kibana-logging
+  namespace: kube-system
+  labels:
+    k8s-app: kibana-logging
+    kubernetes.io/cluster-service: "true"
+    addonmanager.kubernetes.io/mode: Reconcile
+    kubernetes.io/name: "Kibana"
+spec:
+  ports:
+  - port: 5601
+    protocol: TCP
+    targetPort: ui
+  selector:
+    k8s-app: kibana-logging
+  type: LoadBalancer