kubernetes中filebeat以sidecar方式和应用一起部署，并且传入环境变量
2024-10-15 08:20:56
本文的环境介绍
[root@m-30-1 ~]# kubectl version
Client Version: version.Info{Major:"1", Minor:"10", GitVersion:"v1.10.2", GitCommit:"81753b10df112992bf51bbc2c2f85208aad78335", GitTreeState:"clean", BuildDate:"2018-04-27T09:22:21Z", GoVersion:"go1.9.3", Compiler:"gc", Platform:"linux/amd64"}
Server Version: version.Info{Major:"1", Minor:"10", GitVersion:"v1.10.2", GitCommit:"81753b10df112992bf51bbc2c2f85208aad78335", GitTreeState:"clean", BuildDate:"2018-04-27T09:10:24Z", GoVersion:"go1.9.3", Compiler:"gc", Platform:"linux/amd64"}
[root@m-30-1 ~]# rpm -qf /etc/issue
centos-release-7-4.1708.el7.centos.x86_64
kubernetes集群是通过kubeadm安装的，filebeat版本为6.2.4
具体配置文件如下：
---
apiVersion: v1
kind: ConfigMap
metadata:
name: filebeat-config
labels:
k8s-app: filebeat
data:
filebeat.yml: |-
filebeat.prospectors:
- type: log
paths:
- /logdata/*.log
tail_files: true
fields:
pod_name: '${pod_name}'
POD_IP: '${POD_IP}'
output.file:
path: "/tmp/filebeat"
filename: filebeat
codec.format:
string: '%{[@timestamp]} %{[message]} pod_name %{[fields][pod_name]} %{[fields][POD_IP]}'
---
apiVersion: v1
kind: ConfigMap
metadata:
name: nginx-test-config
labels:
k8s-app: nginx-test-config
data:
nginx-test-config: |-
server {
listen 80;
server_name localhost;
access_log /logdata/access.log main;
location / {
root /usr/share/nginx/html;
index index.html index.htm;
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root /usr/share/nginx/html;
}
}
---
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
name: nginx-prod
labels:
app: nginx-log
spec:
template:
metadata:
labels:
app: nginx-log
spec:
containers:
- image: nginx
name: nginx
ports:
- containerPort: 80
protocol: TCP
resources: {}
volumeMounts:
- name: logdata
mountPath: /logdata
- name: nginx-test-config
mountPath: /etc/nginx/conf.d/
- name: filebeat
image: docker.elastic.co/beats/filebeat:6.2.4
args: [
"-c", "/opt/filebeat/filebeat.yml",
"-e",
]
env:
- name: POD_IP
valueFrom:
fieldRef:
apiVersion: v1
fieldPath: status.podIP
- name: pod_name
valueFrom:
fieldRef:
apiVersion: v1
fieldPath: metadata.name
securityContext:
runAsUser: 0
resources:
limits:
memory: 200Mi
requests:
cpu: 100m
memory: 100Mi
volumeMounts:
- name: config
mountPath: /opt/filebeat/
- name: data
mountPath: /usr/share/filebeat/data
- name: logdata
mountPath: /logdata
volumes:
- name: nginx-test-config
configMap:
name: nginx-test-config
items:
- key: nginx-test-config
path: test.conf
- name: logdata
emptyDir: {}
- name: config
configMap:
name: filebeat-config
items:
- key: filebeat.yml
path: filebeat.yml
- name: data
emptyDir: {}
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