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一、背景
二、设计
三、具体实现
Filebeat配置
K8S SideCar yaml
Logstash配置 一、背景 将容器中服务的trace日志和应用日志收集到KAFKA#xff0c;需要注意的是 trace 日志和app 日志需要存放在同一个KAFKA两个不同的topic中。分别为APP_TOPIC和TRACE_TOPIC 二、…目录
一、背景
二、设计
三、具体实现
Filebeat配置
K8S SideCar yaml
Logstash配置 一、背景 将容器中服务的trace日志和应用日志收集到KAFKA需要注意的是 trace 日志和app 日志需要存放在同一个KAFKA两个不同的topic中。分别为APP_TOPIC和TRACE_TOPIC 二、设计
流程图如下 日志采集流程 说明 APP_TOPIC主要存放服务的应用日志 TRACE_TOPIC存放程序输出的trace日志用于排查某一个请求的链路
文字说明 filebeat 采集容器中的日志这里需要定义一些规范我们定义的容器日志路径如下,filebeat会采集两个不同目录下的日志然后输出到对应的topic中之后对kafka 的topic进行消费、存储。最终展示出来
/home/service/
└── logs├── app│ └── pass│ ├── 10.246.84.58-paas-biz-784c68f79f-cxczf.log│ ├── 1.log│ ├── 2.log│ ├── 3.log│ ├── 4.log│ └── 5.log└── trace├── 1.log├── 2.log├── 3.log├── 4.log├── 5.log└── trace.log4 directories, 13 files 三、具体实现
上干货
Filebeat配置
配置说明 其中我将filebeat的一些配置设置成了变量在接下来的k8s yaml文件中需要定义变量和设置变量的value。 需要特别说明的是我这里是使用了 tags: [trace-log]结合when.contains来匹配实现将对应intput中的日志输出到对应kafka的topic中
filebeat.inputs:
- type: logenabled: truepaths:- /home/service/logs/trace/*.logfields_under_root: truefields:topic: ${TRACE_TOPIC}json.keys_under_root: truejson.add_error_key: truejson.message_key: messagescan_frequency: 10smax_bytes: 10485760harvester_buffer_size: 1638400ignore_older: 24hclose_inactive: 1htags: [trace-log]processors:- decode_json_fields:fields: [message]process_array: falsemax_depth: 1target: overwrite_keys: true- type: logenabled: truepaths:- /home/service/logs/app/*/*.logfields:topic: ${APP_TOPIC}scan_frequency: 10smax_bytes: 10485760harvester_buffer_size: 1638400close_inactive: 1htags: [app-log]output.kafka:enabled: truecodec.json:pretty: true # 是否格式化json数据默认falsecompression: gziphosts: ${KAFKA_HOST}topics:- topic: ${TRACE_TOPIC}bulk_max_duration: 2sbulk_max_size: 2048required_acks: 1max_message_bytes: 10485760when.contains:tags: trace-log- topic: ${APP_TOPIC}bulk_flush_frequency: 0bulk_max_size: 2048compression: gzipcompression_level: 4group_id: k8s_filebeatgrouping_enabled: truemax_message_bytes: 10485760partition.round_robin:reachable_only: truerequired_acks: 1workers: 2when.contains:tags: app-log
K8S SideCar yaml
配置说明 该yaml中定一个两个容器容器1为nginx示例容器2为filebeat容器。定义了一个名称为logs的emptryDir类型的卷将logs卷同时挂载在了容器1和容器2的/home/service/logs目录 接下来又在filebeat容器中自定义了三个环境变量这样我们就可以通过修改yaml的方式很灵活的来配置filebeat TRACE_TOPIC Trace日志的topic APP_TOPICApp日志的topic KAFKA_HOSTKAFKA地址
apiVersion: apps/v1
kind: Deployment
metadata:labels:app: nginxname: nginxnamespace: default
spec:replicas: 2selector:matchLabels:app: nginxtemplate:metadata:labels:app: nginxspec:imagePullSecrets:- name: uhub-registrycontainers:- image: uhub.service.ucloud.cn/sre-paas/nginx:v1imagePullPolicy: IfNotPresentname: nginxports:- name: nginxcontainerPort: 80- mountPath: /home/service/logsname: logsterminationMessagePath: /dev/termination-logterminationMessagePolicy: FilevolumeMounts:- mountPath: /home/service/logsname: logs- env:- name: TRACE_TOPICvalue: pro_platform_monitor_log- name: APP_TOPICvalue: platform_logs- name: KAFKA_HOSTvalue: [xxx.xxx.xxx.xxx:9092,xx.xxx.xxx.xxx:9092,xx.xxx.xxx.xxx:9092]- name: MY_POD_NAMEvalueFrom:fieldRef:apiVersion: v1fieldPath: metadata.nameimage: xxx.xxx.xxx.cn/sre-paas/filebeat-v2:8.11.2imagePullPolicy: Alwaysname: filebeatresources:limits:cpu: 150mmemory: 200Mirequests:cpu: 50mmemory: 100MisecurityContext:privileged: truerunAsUser: 0terminationMessagePath: /dev/termination-logterminationMessagePolicy: FilevolumeMounts:- mountPath: /home/service/logsname: logsdnsPolicy: ClusterFirstimagePullSecrets:- name: xxx-registryrestartPolicy: AlwaysschedulerName: default-schedulersecurityContext: {}terminationGracePeriodSeconds: 30volumes:- emptyDir: {}name: logs
Logstash配置
input {kafka {type platform_logsbootstrap_servers xxx.xxx.xxx.xxx:9092,xxx.xxx.xxx.xxx:9092,xxx.xxx.xxx.xxx:9092topics [platform_logs]group_id platform_logsclient_id open-platform-logstash-logs}kafka {type platform_pre_logbootstrap_servers xxx.xxx.xxx.xxx:9092,xxx.xxx.xxx.xxx:9092,xxx.xxx.xxx.xxx:9092topics [pre_platform_logs]group_id pre_platform_logsclient_id open-platform-logstash-pre}kafka {type platform_nginx_logbootstrap_servers xxx.xxx.xxx.xxx:9092,xxx.xxx.xxx.xxx:9092,xxx.xxx.xxx.xxx:9092topics [platform_nginx_log]group_id platform_nginx_logclient_id open-platform-logstash-nginx}
}
filter {if [type] platform_pre_log {grok {match { message \[%{IP}-(?service[a-zA-Z-])-%{DATA}\] }}}if [type] platform_logs {grok {match { message \[%{IP}-(?service[a-zA-Z-])-%{DATA}\] }}}
}
output {if [type] platform_logs {elasticsearch {id platform_logshosts [http://xxx.xxx.xxx.xxx:9200,http://xxx.xxx.xxx.xxx:9200,http://xxx.xxx.xxx.xxx:9200]index log-xxx-prod-%{service}-%{yyyy.MM.dd}user logstash_transformerpassword xxxxxxxtemplate_name log-xxx-prodmanage_template truetemplate_overwrite true}}if [type] platform_pre_log {elasticsearch {id platform_pre_logshosts [http://xxx.xxx.xxx.xxx:9200,http://xxx.xxx.xxx.xxx:9200,http://xxx.xxx.xxx.xxx:9200]index log-xxx-pre-%{service}-%{yyyy.MM.dd}user logstash_transformerpassword xxxxxxxtemplate_name log-xxx-premanage_template truetemplate_overwrite true}}if [type] platform_nginx_log {elasticsearch {id platform_nginx_loghosts [http://xxx.xxx.xxx.xxx:9200,http://xxx.xxx.xxx.xxx:9200,http://xxx.xxx.xxx.xxx:9200]index log-platform-nginx-%{yyyy.MM.dd}user logstash_transformerpassword xxxxxxxtemplate_name log-platform-nginxmanage_template truetemplate_overwrite true}}
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