标签：ada nes info localhost 采集 word lse ems html
k8s集群日志收集
收集哪些日志
K8S系统的组件日志
K8S Cluster里面部署的应用程序日志
Filebeat(日志采集工具)+Logstach(数据处理引擎)+Elasticserch(数据存储、全文检索、分布式搜索引擎)+Kibana（展示数据、绘图、搜索）
3 容器中的日志怎么收集
收集方案：Pod中附加专用日志收集的容器
优点：低耦合
缺点：每个Pod启动一个日志收集代理，增加资源消耗和运维维护成本
4 部署DaemonSet采取k8s组件日志/var/log/messages
4.1 ELK安装在harbor节点
安装、配置ELK
1)安装openjdk
yum -y install java-1.8.0-openjdk
2）安装Logstash
https://www.elastic.co/guide/en/logstash/7.6/installing-logstash.html
配置网络源
/etc/yum.repos.d/logstash.repo
[logstash-7.x]
name=Elastic repository for 7.x packages
baseurl=https://artifacts.elastic.co/packages/7.x/yum
gpgcheck=1
gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch
enabled=1
autorefresh=1
type=rpm-md
3)安装ELK组件
yum -y install logstash elasticsearch kibana
4)配置组件
修改kibana配置
vi /etc/kibana/kibana.yml
server.port: 5601
server.host: "0.0.0.0"
elasticsearch.hosts: ["http://localhost:9200"]
修改logstash配置
vi /etc/logstash/conf.d/logstash-to-es.conf
input {
beats {
port => 5044
}
}
filter {
}
output {
elasticsearch {
hosts => ["http://127.0.0.1:9200"]
index => "k8s-log-%{+YYYY.MM.dd}" #索引格式
}
stdout { codec => rubydebug }
}
启动服务
systemctl start kibana #启动kibana
systemctl start elasticsearch #启动elasticsearch
/usr/share/logstash/bin/logstash -f /etc/logstash/conf.d/logstash-to-es.conf &
192.168.1.143:5601 #访问kibana
5） 创建pod(master节点执行)收集组件日志
kubectl apply -f k8s-logs.yaml
apiVersion: v1
kind: ConfigMap
metadata:
name: k8s-logs-filebeat-config
namespace: kube-system
data:
filebeat.yml: |-
filebeat.prospectors:
type: log
paths:
output.logstash:
hosts: [‘192.168.1.143:5044‘]
apiVersion: apps/v1
kind: DaemonSet
metadata:
name: k8s-logs
namespace: kube-system
spec:
selector:
matchLabels:
project: k8s
app: filebeat
template:
metadata:
labels:
project: k8s
app: filebeat
spec:
containers:
6）kibana添加索引
kibana界面->Index Patterns-》k8s-log-*->@timestamp->Create index pattern->Discover
7）查看日志
6 收集nginx日志
1）创建名称空间
cat namespace.yaml
apiVersion: v1
kind: Namespace
metadata:
name: test
2）创建pod的configmap（保存filebeat的配置文件）
kubectl apply -f filebeat-nginx-configmap.yaml
cat filebeat-nginx-configmap.yaml
apiVersion: v1
kind: ConfigMap
metadata:
name: filebeat-nginx-config
namespace: test
data:
filebeat.yml: |-
filebeat.prospectors:
type: log
paths:
type: log
paths:
output.logstash: #收集的日志数据输出到logstash中
hosts: [‘192.168.1.143:5044‘]
3）创建secret用于保存harbor用户的密码
kubectl create secret docker-registry harborsecret123 --docker-server=192.168.1.143 --docker-username=‘zhanghai‘ --docker-password=‘123@Abcde‘ -n test
4）修改logstash配置
/usr/share/logstash/bin/logstash -f /etc/logstash/conf.d/logstash-to-es.conf &
cat logstash-to-es.conf
input {
beats {
port => 5044
}
}
filter {
}
output {
if [app] == "www" {
if [type] == "nginx-access" {
elasticsearch {
hosts => ["http://127.0.0.1:9200"]
index => "nginx-access-%{+YYYY.MM.dd}"
}
}
else if [type] == "nginx-error" {
elasticsearch {
hosts => ["http://127.0.0.1:9200"]
index => "nginx-error-%{+YYYY.MM.dd}"
}
}
else if [type] == "tomcat-catalina" {
elasticsearch {
hosts => ["http://127.0.0.1:9200"]
index => "tomcat-catalina-%{+YYYY.MM.dd}"
}
}
else if [app] == "k8s" {
if [type] == "module" {
elasticsearch {
hosts => ["http://127.0.0.1:9200"]
index => "k8s-log-%{+YYYY.MM.dd}"
}
}
}
}
}
5）创建nginx的pod
kubectl apply -f nginx-deployment.yaml
cat nginx-deployment.yaml
apiVersion: apps/v1beta1
kind: Deployment
metadata:
name: php-demo
namespace: test
spec:
replicas: 3
selector:
matchLabels:
project: www
app: php-demo
template:
metadata:
labels:
project: www
app: php-demo
spec:
imagePullSecrets:
name: nginx
image: 192.168.1.143/project/php-demo:latest
imagePullPolicy: Always
ports:
name: filebeat
image: docker.elastic.co/beats/filebeat:6.4.2
args: [
"-c", "/etc/filebeat.yml",
"-e",
]
resources:
limits:
memory: 500Mi
requests:
cpu: 100m
memory: 100Mi
securityContext:
runAsUser: 0
volumeMounts:
name: nginx-logs
mountPath: /usr/local/nginx/logs
volumes:
5）配置kibana前台
kibana界面->Kibana Index Patterns-》nginx-access-*->@timestamp->Create index pattern->Discover
data:
filebeat.yml: |-
filebeat.prospectors:
2）创建tomcat的pod
kubectl apply -f tomcat-deployment.yaml
cat tomcat-deployment.yaml
apiVersion: apps/v1beta1
kind: Deployment
metadata:
name: tomcat-java-demo
namespace: test
spec:
replicas: 3
selector:
matchLabels:
project: www
app: java-demo
template:
metadata:
labels:
project: www
app: java-demo
spec:
imagePullSecrets:
name: tomcat
image: 192.168.1.143/project/tomcat-java-demo:latest
imagePullPolicy: Always
ports:
3）配置kibana前台
kibana界面->Kibana Index Patterns-tomcat-catalina-*->@timestamp->Create index pattern->Discover
标签：ada nes info localhost 采集 word lse ems html
原文地址：https://blog.51cto.com/13836096/2484937
