containerd-filebeat-conditional.yml

---
apiVersion: v1
kind: ConfigMap
metadata:
  name: filebeat-config
  labels:
    k8s-app: filebeat
data:
  filebeat.yml: |-
    
    filebeat.autodiscover:
      providers:
        - type: kubernetes
          templates:
            - condition:
                contains:
                  kubernetes.container.image: "backend" # filters for image name containing 'backend' in it.
              config:
                - type: container
                  symlinks: true
                  paths:
                    - /var/log/containers/*-${data.kubernetes.container.id}.log
    
    output.logstash:
      hosts: ["${LOGSTASH_HOST}:${LOGSTASH_PORT}"]
---
apiVersion: apps/v1
kind: DaemonSet
metadata:
  name: filebeat
  labels:
    k8s-app: filebeat
spec:
  selector:
    matchLabels:
      k8s-app: filebeat
  template:
    metadata:
      labels:
        k8s-app: filebeat
    spec:
      serviceAccountName: filebeat
      terminationGracePeriodSeconds: 30
      hostNetwork: true
      dnsPolicy: ClusterFirstWithHostNet
      containers:
      - name: filebeat
        image: docker.elastic.co/beats/filebeat:7.17.9
        args: [
          "-c", "/etc/filebeat.yml",
          "-e",
        ]
        env:
        - name: LOGSTASH_HOST
          value: "logstash"
        - name: LOGSTASH_PORT
          value: "5100"
        securityContext:
          runAsUser: 0
          #If using Red Hat OpenShift uncomment this:
          #privileged: true
        resources:
          limits:
            memory: 200Mi
          requests:
            cpu: 100m
            memory: 100Mi
        volumeMounts:
        - name: config
          mountPath: /etc/filebeat.yml
          readOnly: true
          subPath: filebeat.yml
        - name: data
          mountPath: /usr/share/filebeat/data
        - name: varlogcontainers
          mountPath: /var/log/containers
          readOnly: true
        - name: varlogpods
          mountPath: /var/log/pods
          readOnly: true
        - name: dockersock
          mountPath: "/var/run/docker.sock"
      volumes:
      # Bind previously defined ConfigMap
      - name: dockersock
        hostPath:
          path: /var/run/docker.sock
      - name: config
        configMap:
          defaultMode: 0600
          name: filebeat-config
      - name: varlogcontainers
        hostPath:
          path: /var/log/containers
      - name: varlogpods
        hostPath:
          path: /var/log/pods
      # data folder stores a registry of read status for all files, so we don't send everything again on a Filebeat pod restart
      - name: data
        hostPath:
          path: /var/lib/filebeat-data
          type: DirectoryOrCreate