Merge pull request fluent#6 from Yolean/out-kafka-rest

Add example of kafka-rest

Author: edsiper

fluent-bit-config-kafka-rest.yml

@@ -0,0 +1,86 @@
+kind: ConfigMap
+metadata:
+  name: fluent-bit-config-kafka-rest
+  namespace: kube-system
+apiVersion: v1
+data:
+  fluent-bit.conf: |-
+    [SERVICE]
+        Flush          1
+        Daemon         Off
+        Log_Level      info
+        Parsers_File   parsers.conf
+
+    [INPUT]
+        Name           tail
+        Tag            kube.*
+        Path           /var/log/containers/*.log
+        Parser         docker
+        DB             /var/log/flb_kube.db
+        Mem_Buf_Limit  5MB
+
+    [FILTER]
+        Name           kubernetes
+        Match          kube.*
+        Kube_URL       https://kubernetes.default.svc:443
+        Merge_JSON_Log On
+
+    [OUTPUT]
+        Name            kafka-rest
+        Match           *
+        Host            ${KAFKA_REST_HOST}
+        Port            ${KAFKA_REST_PORT}
+        Time_Key        @timestamp
+        Tag_Key         _fluent-tag
+        Include_Tag_Key On
+        Tag_Key         My_Tag_Key
+        Topic           ${KAFKA_TOPIC}
+        # Partition     0
+        # Message_Key abc
+
+  parsers.conf: |-
+    [PARSER]
+        Name   apache
+        Format regex
+        Regex  ^(?<host>[^ ]*) [^ ]* (?<user>[^ ]*) \[(?<time>[^\]]*)\] "(?<method>\S+)(?: +(?<path>[^\"]*?)(?: +\S*)?)?" (?<code>[^ ]*) (?<size>[^ ]*)(?: "(?<referer>[^\"]*)" "(?<agent>[^\"]*)")?$
+        Time_Key time
+        Time_Format %d/%b/%Y:%H:%M:%S %z
+
+    [PARSER]
+        Name   apache2
+        Format regex
+        Regex  ^(?<host>[^ ]*) [^ ]* (?<user>[^ ]*) \[(?<time>[^\]]*)\] "(?<method>\S+)(?: +(?<path>[^ ]*) +\S*)?" (?<code>[^ ]*) (?<size>[^ ]*)(?: "(?<referer>[^\"]*)" "(?<agent>[^\"]*)")?$
+        Time_Key time
+        Time_Format %d/%b/%Y:%H:%M:%S %z
+
+    [PARSER]
+        Name   apache_error
+        Format regex
+        Regex  ^\[[^ ]* (?<time>[^\]]*)\] \[(?<level>[^\]]*)\](?: \[pid (?<pid>[^\]]*)\])?( \[client (?<client>[^\]]*)\])? (?<message>.*)$
+
+    [PARSER]
+        Name   nginx
+        Format regex
+        Regex ^(?<remote>[^ ]*) (?<host>[^ ]*) (?<user>[^ ]*) \[(?<time>[^\]]*)\] "(?<method>\S+)(?: +(?<path>[^\"]*?)(?: +\S*)?)?" (?<code>[^ ]*) (?<size>[^ ]*)(?: "(?<referer>[^\"]*)" "(?<agent>[^\"]*)")?$
+        Time_Key time
+        Time_Format %d/%b/%Y:%H:%M:%S %z
+
+    [PARSER]
+        Name   json-test
+        Format json
+        Time_Key time
+        Time_Format %d/%b/%Y:%H:%M:%S %z
+
+    [PARSER]
+        Name        docker
+        Format      json
+        Time_Key    time
+        Time_Format %Y-%m-%dT%H:%M:%S.%L
+        Time_Keep   On
+
+    [PARSER]
+        Name        syslog
+        Format      regex
+        Regex       ^\<(?<pri>[0-9]+)\>(?<time>[^ ]* {1,2}[^ ]* [^ ]*) (?<host>[^ ]*) (?<ident>[a-zA-Z0-9_\/\.\-]*)(?:\[(?<pid>[0-9]+)\])?(?:[^\:]*\:)? *(?<message>.*)$
+        Time_Key    time
+        Time_Format %b %d %H:%M:%S

fluent-bit-daemonset-kafka-rest.yml

@@ -0,0 +1,62 @@
+apiVersion: extensions/v1beta1
+kind: DaemonSet
+metadata:
+  name: fluent-bit
+  namespace: kube-system
+  labels:
+    k8s-app: fluent-bit-logging
+    version: v1
+    kubernetes.io/cluster-service: "true"
+spec:
+  template:
+    metadata:
+      labels:
+        k8s-app: fluent-bit-logging
+        version: v1
+        kubernetes.io/cluster-service: "true"
+    spec:
+      containers:
+      - name: fluent-bit
+        image: fluent/fluent-bit:0.12-dev
+        env:
+          - name:  KAFKA_REST_HOST
+            value: rest.kafka.svc.cluster.local
+          - name:  KAFKA_REST_PORT
+            value: "80"
+          - name:  KAFKA_TOPIC
+            value: fluent-bit
+        command:
+          - /fluent-bit/bin/fluent-bit
+          - -c
+          - /fluent-bit/etc/fluent-bit.conf
+        resources:
+          limits:
+            memory: 100Mi
+          requests:
+            cpu: 100m
+            memory: 100Mi
+        volumeMounts:
+        - name: config
+          mountPath: /fluent-bit/etc
+        - name: varlog
+          mountPath: /var/log
+        - name: varlibdockercontainers
+          mountPath: /var/lib/docker/containers
+          readOnly: true
+        - name: minikube
+          mountPath: /mnt/sda1/var/lib/docker/containers
+          readOnly: true
+      terminationGracePeriodSeconds: 10
+      volumes:
+      - name: config
+        configMap:
+          name: fluent-bit-config-kafka-rest
+      - name: varlog
+        hostPath:
+          path: /var/log
+      - name: varlibdockercontainers
+        hostPath:
+          path: /var/lib/docker/containers
+      - name: minikube
+        hostPath:
+          path: /mnt/sda1/var/lib/docker/containers

testpod.yml

@@ -0,0 +1,22 @@
+apiVersion: v1
+kind: Pod
+metadata:
+  name: testpod-fluentbit-kafka
+  namespace: default
+spec:
+  containers:
+  - name: kafkacat
+    image: solsson/kafkacat@sha256:1266d140c52cb39bf314b6f22b6d7a01c4c9084781bc779fdfade51214a713a8
+    command:
+      - bash
+      - -ec
+      - >
+        cd /usr/local/bin;
+        echo '#!/bin/bash' > logs-cat;
+        chmod +x logs-cat;
+        echo "kafkacat -b kafka-0.broker.kafka.svc.cluster.local:9092 -C -t fluent-bit -o end" >> logs-cat;
+
+        echo "Won't cat logs to stdout because it would create an infinite loop of log aggregation.";
+        echo "Instead run something like:";
+        echo "kubectl -n default exec -ti testpod-fluentbit-kafka -- logs-cat";
+        tail -f /dev/null;