Revert "logging: Remove Filebeat"

This reverts commit bb30b2dd95.

logging/filebeat.yml

@@ -0,0 +1,196 @@
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: filebeat-config
+  namespace: logging
+data:
+  filebeat.yml: |-
+    http.enabled: true
+    filebeat.inputs:
+    - type: container
+      paths:
+        - /var/log/containers/*.log
+      processors:
+        - add_kubernetes_metadata:
+            in_cluster: true
+            host: ${NODE_NAME}
+            matchers:
+            - logs_path:
+                logs_path: "/var/log/containers/"
+    filebeat.autodiscover:
+      providers:
+        - type: kubernetes
+          host: ${NODE_NAME}
+          hints.enabled: true
+          hints.default_config:
+            type: container
+            paths:
+              - /var/log/containers/*${data.kubernetes.container.id}.log
+    processors:
+      - add_host_metadata:
+      - drop_fields:
+          fields:
+            - stream
+          ignore_missing: true
+      - rename:
+          fields:
+            - from: "kubernetes.node.name"
+              to: "source"
+            - from: "kubernetes.pod.name"
+              to: "pod"
+            - from: "stream"
+              to: "stream"
+            - from: "kubernetes.labels.app"
+              to: "app"
+            - from: "kubernetes.namespace"
+              to: "namespace"
+          ignore_missing: true
+      - drop_fields:
+          fields:
+            - agent
+            - container
+            - ecs
+            - host
+            - kubernetes
+            - log
+            - "@metadata"
+          ignore_missing: true
+    output.logstash:
+      hosts: ["graylog-logstash:5044"]
+    #output.console:
+    #  pretty: true
+---
+apiVersion: apps/v1
+kind: DaemonSet
+metadata:
+  name: filebeat
+  namespace: logging
+spec:
+  updateStrategy:
+    type: RollingUpdate
+    rollingUpdate:
+      maxUnavailable: 100%
+  selector:
+    matchLabels:
+      app: filebeat
+  template:
+    metadata:
+      labels:
+        app: filebeat
+    spec:
+      serviceAccountName: filebeat
+      containers:
+      - name: filebeat
+        image: docker.elastic.co/beats/filebeat:7.17.6
+        args:
+         - -c
+         - /etc/filebeat.yml
+         - -e
+        securityContext:
+          runAsUser: 0
+        env:
+        - name: NODE_NAME
+          valueFrom:
+            fieldRef:
+              fieldPath: spec.nodeName
+        ports:
+          - containerPort: 5066
+        resources:
+          limits:
+            memory: 200Mi
+          requests:
+            cpu: 100m
+            memory: 100Mi
+        volumeMounts:
+        - name: filebeat-config
+          mountPath: /etc/filebeat.yml
+          readOnly: true
+          subPath: filebeat.yml
+        - name: data
+          mountPath: /usr/share/filebeat/data
+        - name: varlibdockercontainers
+          mountPath: /var/lib/docker/containers
+          readOnly: true
+        - name: varlog
+          mountPath: /var/log
+          readOnly: true
+      volumes:
+      - name: filebeat-config
+        configMap:
+          defaultMode: 0600
+          name: filebeat-config
+      - name: varlibdockercontainers
+        hostPath:
+          path: /var/lib/docker/containers
+      - name: varlog
+        hostPath:
+          path: /var/log
+      - name: data
+        hostPath:
+          path: /var/lib/filebeat-data
+          type: DirectoryOrCreate
+      tolerations:
+      - operator: "Exists"
+        effect: "NoExecute"
+      - operator: "Exists"
+        effect: "NoSchedule"
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: filebeat
+subjects:
+- kind: ServiceAccount
+  name: filebeat
+  namespace: logging
+roleRef:
+  kind: ClusterRole
+  name: filebeat
+  apiGroup: rbac.authorization.k8s.io
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: filebeat
+  labels:
+    app: filebeat
+rules:
+- apiGroups:
+  - ""
+  resources:
+  - namespaces
+  - pods
+  - nodes
+  verbs:
+  - get
+  - watch
+  - list
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: filebeat
+  namespace: logging
+  labels:
+    app: filebeat
+---
+apiVersion: networking.k8s.io/v1
+kind: NetworkPolicy
+metadata:
+  name: filebeat
+spec:
+  podSelector:
+    matchLabels:
+      app: filebeat
+  policyTypes:
+  - Ingress
+  - Egress
+  egress:
+  - to:
+    - podSelector:
+        matchLabels:
+          app: graylog
+    ports:
+    - protocol: TCP
+      port: 5044