实战elk分析k8s应用日志

小巧的流氏日志收集工具：filebeat，代替logstash让业务的pod容器和filebeat容器，编车模式放在一个pod里面跑。kafaka，开源的消息队列。改造dubbo-demo-consumer为tomcat启动准备tomcat的底包镜像java程序打成war包，放到tomcat里就可以了。准备tomcat二进制包官网下载。8.5.50mkdir -p /data/...

雷神_zero

762人浏览 · 2020-03-06 16:03:12

雷神_zero · 2020-03-06 16:03:12 发布

在这里插入图片描述
小巧的流氏日志收集工具：filebeat，代替logstash
让业务的pod容器和filebeat容器，编车模式放在一个pod里面跑。
kafaka，开源的消息队列。

改造dubbo-demo-consumer为tomcat启动

准备tomcat的底包镜像

java程序打成war包，放到tomcat里就可以了。

准备tomcat二进制包

官网下载。8.5.50
src]# wget http://mirrors.tuna.tsinghua.edu.cn/apache/tomcat/tomcat-8/v8.5.50/bin/apache-tomcat-8.5.50.tar.gz
mkdir -p /data/dockfile/tomcat
tar xfv xxx -C /data/dockfile/tomcat

s### 简单配置tomcat

# 关闭AJP端口，跟apache快速结合用的。
# 配置日志

在这里插入图片描述

准备dockerfile

vi dockerfile
iFrom harbor.od.com/public/jre:8u112
RUN /bin/cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime &&\ 
    echo 'Asia/Shanghai' >/etc/timezone
ENV CATALINA_HOME /opt/tomcat
ENV LANG zh_CN.UTF-8
ADD apache-tomcat-8.5.50/ /opt/tomcat
ADD config.yml /opt/prom/config.yml
ADD jmx_javaagent-0.3.1.jar /opt/prom/jmx_javaagent-0.3.1.jar
WORKDIR /opt/tomcat
ADD entrypoint.sh /entrypoint.sh
CMD ["/entrypoint.sh"]

vi config.yml
i---
rules:
  - pattern: '.*'
  
wget https://repo1.maven.org/maven2/io/prometheus/jmx/jmx_prometheus_javaagent/0.3.1/jmx_prometheus_javaagent-0.3.1.jar -O jmx_javaagent-0.3.1.jar

vi entrypoint.sh
i#!/bin/bash
M_OPTS="-Duser.timezone=Asia/Shanghai -javaagent:/opt/prom/jmx_javaagent-0.3.1.jar=$(hostname -i):${M_PORT:-"12346"}:/opt/prom/config.yml"
C_OPTS=${C_OPTS}
MIN_HEAP=${MIN_HEAP:-"128m"}
MAX_HEAP=${MAX_HEAP:-"128m"}
JAVA_OPTS=${JAVA_OPTS:-"-Xmn384m -Xss256k -Duser.timezone=GMT+08  -XX:+DisableExplicitGC -XX:+UseConcMarkSweepGC -XX:+UseParNewGC -XX:+CMSParallelRemarkEnabled -XX:+UseCMSCompactAtFullCollection -XX:CMSFullGCsBeforeCompaction=0 -XX:+CMSClassUnloadingEnabled -XX:LargePageSizeInBytes=128m -XX:+UseFastAccessorMethods -XX:+UseCMSInitiatingOccupancyOnly -XX:CMSInitiatingOccupancyFraction=80 -XX:SoftRefLRUPolicyMSPerMB=0 -XX:+PrintClassHistogram  -Dfile.encoding=UTF8 -Dsun.jnu.encoding=UTF8"}
CATALINA_OPTS="${CATALINA_OPTS}"
JAVA_OPTS="${M_OPTS} ${C_OPTS} -Xms${MIN_HEAP} -Xmx${MAX_HEAP} ${JAVA_OPTS}"
sed -i -e "1a\JAVA_OPTS=\"$JAVA_OPTS\"" -e "1a\CATALINA_OPTS=\"$CATALINA_OPTS\"" /opt/tomcat/bin/catalina.sh
cd /opt/tomcat && /opt/tomcat/bin/catalina.sh run 2>&1 >> /opt/tomcat/logs/stdout.log

制作镜像并推送

docker build  . -t harbor.od.com/base/tomcat:v8.5.50 
docker push !$

改造dubbo-demo-web 项目

略，直接使用tomcat分支。gg/

构造新的jenkins流水线

比之前的jar包启动的方式，多一个tomcat的webapp目录，这样一个参数。
在这里插入图片描述

pipeline {
  agent any 
    stages {
    stage('pull') { //get project code from repo 
      steps {
        sh "git clone ${params.git_repo} ${params.app_name}/${env.BUILD_NUMBER} && cd ${params.app_name}/${env.BUILD_NUMBER} && git checkout ${params.git_ver}"
        }
    }
    stage('build') { //exec mvn cmd
      steps {
        sh "cd ${params.app_name}/${env.BUILD_NUMBER}  && /var/jenkins_home/maven-${params.maven}/bin/${params.mvn_cmd}"
      }
    }
    stage('unzip') { //unzip  target/*.war -c target/project_dir
      steps {
        sh "cd ${params.app_name}/${env.BUILD_NUMBER} && cd ${params.target_dir} && mkdir project_dir && unzip *.war -d ./project_dir"
      }
    }
    stage('image') { //build image and push to registry
      steps {
        writeFile file: "${params.app_name}/${env.BUILD_NUMBER}/Dockerfile", text: """FROM harbor.od.com/${params.base_image}
ADD ${params.target_dir}/project_dir /opt/tomcat/webapps/${params.root_url}"""
        sh "cd  ${params.app_name}/${env.BUILD_NUMBER} && docker build -t harbor.od.com/${params.image_name}:${params.git_ver}_${params.add_tag} . && docker push harbor.od.com/${params.image_name}:${params.git_ver}_${params.add_tag}"
      }
    }
  }
}

二进制安装部署elasticsearch

官网：www.elastic.co
elasticsearch 7 以上的版本，依赖的是jdk11， jdk8 是跑不起来的。
装到7.12 上
mkdir -p /data/elasticsearch/{data,logs}

]# vi config/elasticsearch.yml
cluster.name: es.od.com
node.name: hdss7-12.host.com
path.data: /data/elasticsearch/data
path.logs: /data/elasticsearch/logs
bootstrap.memory_lock: true
network.host: 10.4.7.12
http.port: 9200

在这里插入图片描述

调整es日志模版：

es hard nofile 65536
es soft fsize unlimited
es hard memlock unlimited
es soft memlock unlimited


[root@hdss7-12 elasticsearch]# sysctl -w vm.max_map_count=262144
or
[root@hdss7-12 elasticsearch]# echo "vm.max_map_count=262144" >> /etc/sysctl.conf
[root@hdss7-12 elasticsearch]# sysctl -p

su -c "/opt/elasticsearch/bin/elasticsearch -d" es

curl -H "Content-Type:application/json" -XPUT http://10.4.7.12:9200/_template/k8s -d '{
  "template" : "k8s*",
  "index_patterns": ["k8s*"],  
  "settings": {
    "number_of_shards": 5,
    "number_of_replicas": 0
  }
}'

安装部署kafka

7.11 上装kafka

官网：kafka.apache.org
建议不要超过2.2.0，还要用到kafka manager，是第三方，版本没有更新那么快。

cd /opt/src

log.dirs=/data/kafka/logs
zookeeper.connect=localhost:2181
log.flush.interval.messages=10000
log.flush.interval.ms=1000
delete.topic.enable=true
host.name=hdss7-11.host.com

bin/kafka-server-start.sh -daemon config/server.properties

部署kafka-manager

方法一：
自己构建manager镜像
FROM hseeberger/scala-sbt

ENV ZK_HOSTS=10.4.7.11:2181 \
     KM_VERSION=2.0.0.2

RUN mkdir -p /tmp && \
    cd /tmp && \
    wget https://github.com/yahoo/kafka-manager/archive/${KM_VERSION}.tar.gz && \
    tar xxf ${KM_VERSION}.tar.gz && \
    cd /tmp/kafka-manager-${KM_VERSION} && \
    sbt clean dist && \
    unzip  -d / ./target/universal/kafka-manager-${KM_VERSION}.zip && \
    rm -fr /tmp/${KM_VERSION} /tmp/kafka-manager-${KM_VERSION}

WORKDIR /kafka-manager-${KM_VERSION}

EXPOSE 9000
ENTRYPOINT ["./bin/kafka-manager","-Dconfig.file=conf/application.conf"]

方法二：
下载已经构建好的，但是写死了ZK_HOSTS=10.4.7.11:2181
docker pull stanleyws/kafka-manager


dp.yaml

kind: Deployment
apiVersion: extensions/v1beta1
metadata:
  name: kafka-manager
  namespace: infra
  labels: 
    name: kafka-manager
spec:
  replicas: 1
  selector:
    matchLabels: 
      app: kafka-manager
  strategy:
    type: RollingUpdate
    rollingUpdate: 
      maxUnavailable: 1
      maxSurge: 1
  revisionHistoryLimit: 7
  progressDeadlineSeconds: 600
  template:
    metadata:
      labels: 
        app: kafka-manager
    spec:
      containers:
      - name: kafka-manager
        image: harbor.od.com/infra/kafka-manager:v2.0.0.2
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 9000
          protocol: TCP
        env:
        - name: ZK_HOSTS
          value: zk1.od.com:2181
        - name: APPLICATION_SECRET
          value: letmein
      imagePullSecrets:
      - name: harbor
      terminationGracePeriodSeconds: 30
      securityContext: 
        runAsUser: 0
		
svc.yaml


kind: Service
apiVersion: v1
metadata: 
  name: kafka-manager
  namespace: infra
spec:
  ports:
  - protocol: TCP
    port: 9000
    targetPort: 9000
  selector: 
    app: kafka-manager
	
ingress.yaml


kind: Ingress
apiVersion: extensions/v1beta1
metadata: 
  name: kafka-manager
  namespace: infra
spec:
  rules:
  - host: km.od.com
    http:
      paths:
      - path: /
        backend: 
          serviceName: kafka-manager
          servicePort: 9000

在这里插入图片描述

部署filebeat

制作docker镜像

200上：
cd /data/dockerfile
mkdir filebeat
cd filebeat

vi Dockerfile
iFROM debian:jessie
ENV FILEBEAT_VERSION=7.4.0 \
FILEBEAT_SHA1=c63bb1e16f7f85f71568041c78f11b57de58d497ba733e398fa4b2d071270a86dbab19d5cb35da5d3579f35cb5b5f3c46e6e08cdf840afb7c347777aae5c4e11

RUN set -x && \
  apt-get update && \
  apt-get install -y wget && \
  wget https://artifacts.elastic.co/downloads/beats/filebeat/filebeat-${FILEBEAT_VERSION}-linux-x86_64.tar.gz -O /opt/filebeat.tar.gz && \
  cd /opt && \
  echo "${FILEBEAT_SHA1}  filebeat.tar.gz" | sha512sum -c - && \
  tar xzvf filebeat.tar.gz && \
  cd filebeat-* && \
  cp filebeat /bin && \
  cd /opt && \
  rm -rf filebeat* && \
  apt-get purge -y wget && \
  apt-get autoremove -y && \
  apt-get clean && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*

COPY docker-entrypoint.sh /
ENTRYPOINT ["/docker-entrypoint.sh"]

vi docker-entrypoint.sh
i#!/bin/bash
ENV=${ENV:-"test"}
PROJ_NAME=${PROJ_NAME:-"no-define"}
MULTILINE=${MULTILINE:-"^\d{2}"}

cat > /etc/filebeat.yaml << EOF
filebeat.inputs:
- type: log
  fields_under_root: true
  fields:
    topic: logm-${PROJ_NAME}
  paths:
    - /logm/*.log
    - /logm/*/*.log
    - /logm/*/*/*.log
    - /logm/*/*/*/*.log
    - /logm/*/*/*/*/*.log
  scan_frequency: 120s
  max_bytes: 10485760
  multiline.pattern: '$MULTILINE'
  multiline.negate: true
  multiline.match: after
  multiline.max_lines: 100
- type: log
  fields_under_root: true
  fields:
    topic: logu-${PROJ_NAME}
  paths:
    - /logu/*.log
    - /logu/*/*.log
    - /logu/*/*/*.log
    - /logu/*/*/*/*.log
    - /logu/*/*/*/*/*.log
    - /logu/*/*/*/*/*/*.log
output.kafka:
  hosts: ["10.4.7.11:9092"]
  topic: k8s-fb-$ENV-%{[topic]}
  version: 2.0.0
  required_acks: 0
  max_message_bytes: 10485760
EOF

set -xe

# If user don't provide any command
# Run filebeat
if [[ "$1" == "" ]]; then
     exec filebeat  -c /etc/filebeat.yaml 
else
    # Else allow the user to run arbitrarily commands like bash
    exec "$@"
fi

chmod u+x docker-entrypoint.sh
docker build . -t harbor.od.com/infra/filebeat:v7.5.1
docker push harbor.od.com/infra/filebeat:v7.5.1

修改资源配置清单

让dubbo-demo-consumer 的 tomcat的镜像接入到filebeat。

dp.yaml

kind: Deployment
apiVersion: extensions/v1beta1
metadata:
  name: dubbo-demo-consumer
  namespace: test
  labels: 
    name: dubbo-demo-consumer
spec:
  replicas: 1
  selector:
    matchLabels: 
      name: dubbo-demo-consumer
  template:
    metadata:
      labels: 
        app: dubbo-demo-consumer
        name: dubbo-demo-consumer
    spec:
      containers:
      - name: dubbo-demo-consumer
        image: harbor.od.com/app/dubbo-demo-web:tomcat_191222_1200
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 8080
          protocol: TCP
        env:
        - name: C_OPTS
          value: -Denv=fat -Dapollo.meta=http://apollo-configervice:8080
        volumeMounts:
        - mountPath: /opt/tomcat/logs
          name: logm
      - name: filebeat
        image: harbor.od.com/infra/filebeat:v7.5.1
        imagePullPolicy: IfNotPresent
        env:
        - name: ENV
          value: test
        - name: PROJ_NAME
          value: dubbo-demo-web
        volumeMounts:
        - mountPath: /logm
          name: logm
      volumes:
      - emptyDir: {}  ## 容器调度到哪个节点，看到一个存储卷，名字是logm，宿主机上开一个随机的存储空间，挂到容器里，容器销毁了，这个存储空间也销毁了。
        name: logm
      imagePullSecrets:
      - name: harbor
      restartPolicy: Always
      terminationGracePeriodSeconds: 30
      securityContext: 
        runAsUser: 0
      schedulerName: default-scheduler
  strategy:
    type: RollingUpdate
    rollingUpdate: 
      maxUnavailable: 1
      maxSurge: 1
  revisionHistoryLimit: 7
  progressDeadlineSeconds: 600

kubectl apply -f http://k8s-yaml.od.com/test/dubbo-demo-consumer/dp.yaml

浏览器访问km.od.com

kafka-manager

部署logstash

200上：
docker pull logstash:6.8.6

在这里插入图片描述
logstash 把日志从kafka拿出来，放到es里。
一个环境起一个logstash，测试环境一个，生产环境一个。
https://www.elastic.co/support/matrix ## 选择版本

mkdir -p /etc/logstash/
vi /etc/logstash/ogstash-test.conf
input {
  kafka {
    bootstrap_servers => "10.4.7.11:9092"
    client_id => "10.4.7.200"
    consumer_threads => 4
    group_id => "k8s_test"
    topics_pattern => "k8s-fb-test-.*"
  }
}

filter {
  json {
    source => "message"
  }
}

output {
  elasticsearch {
    hosts => ["10.4.7.12:9200"]
    index => "k8s-test-%{+YYYY.MM.DD}"
  }
}

# 启动logstash 镜像
docker run -d --name logstash-test -v /etc/logstash:/etc/logstash harbor.od.com/infra/logstash:v6.8.3 -f /etc/logstash/logstash-test.conf

# 验证es里的数据
curl http://10.4.7.12:9200/_cat/indices?v

交付kibana到k8s集群

# 200上
docker pull kibana:6.8.6

在这里插入图片描述

 dp.yaml
 
kind: Deployment
apiVersion: extensions/v1beta1
metadata:
  name: kibana
  namespace: infra
  labels: 
    name: kibana
spec:
  replicas: 1
  selector:
    matchLabels: 
      name: kibana
  template:
    metadata:
      labels: 
        app: kibana
        name: kibana
    spec:
      containers:
      - name: kibana
        image: harbor.od.com/infra/kibana:v6.8.3
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 5601
          protocol: TCP
        env:
        - name: ELASTICSEARCH_URL
          value: http://10.4.7.12:9200
      imagePullSecrets:
      - name: harbor
      securityContext: 
        runAsUser: 0
  strategy:
    type: RollingUpdate
    rollingUpdate: 
      maxUnavailable: 1
      maxSurge: 1
  revisionHistoryLimit: 7
  progressDeadlineSeconds: 600

svc.yaml

kind: Service
apiVersion: v1
metadata: 
  name: kibana
  namespace: infra
spec:
  ports:
  - protocol: TCP
    port: 5601
    targetPort: 5601
  selector: 
    app: kibana
	
ingress.yaml

kind: Ingress
apiVersion: extensions/v1beta1
metadata: 
  name: kibana
  namespace: infra
spec:
  rules:
  - host: kibana.od.com
    http:
      paths:
      - path: /
        backend: 
          serviceName: kibana
          servicePort: 5601

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