k8s配置文件外挂

最新推荐文章于 2025-06-28 17:16:41 发布

原创最新推荐文章于 2025-06-28 17:16:41 发布 · 1k 阅读

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#docker #k8s

1.采用hostpath:yaml文件如下

apiVersion: v1
kind: Service
metadata:
  name: zuul-server
  namespace: stg
  labels:
    app: zuul-server
spec:
  type: NodePort
  ports:
  - port: 8088
    targetPort: 8088
    nodePort: 32223
  selector:
    app: zuul-server
---
apiVersion: apps/v1
kind: Deployment 
metadata:
  name: zuul-server
  namespace: stg
  labels:
    app: zuul-server 
spec:
  replicas: 1 
    selector:
    matchLabels:
      app: zuul-server
  template:
    metadata:
      labels:
        app: zuul-server
    spec:
      containers: 
      - name: zuul-server
        image: 10.10.10.10/zongbu-sre/zuul-server:v202108241 
        imagePullPolicy: IfNotPresent 
        ports:
        - containerPort: 8088 
        volumeMounts:
            - name: test
              mountPath: /var/smart-tg/zuul-server-0.0.1-SNAPSHOT/config/application.yml
      volumes:
        - name: test
          hostPath:         
              path: /home/dcos/wm/conf/application.yml
              type: FileOrCreate

上面配置采用hostpath方式配置外挂文件，这种方式会增加主机与pod的耦合度，非常用方式，再集群中不方便使用，因为这种方式相当于是docker的那种挂载方式，和主机目录是对应的，集群中相当于每台主机上面都要去指定目录下配置文件。

2.采用configmap方式挂载

configMap 卷 提供了向 Pod 注入配置数据的方法。 ConfigMap 对象中存储的数据可以被 configMap 类型的卷引用，然后被 Pod 中运行的 容器化应用使用。

a.创建configmap配置通过文件
kubectl create configmap cmtest --from-file application.yml
b.通过yaml创建configmap
创建configmap.yaml文件

apiVersion: v1
kind: ConfigMap
metadata:
  name: cmtest
  labels:
    app: cmtest
data:
application.yml:
----
 server:
  port: 8640
  servlet:
    context-path: /collection
  tomcat:
    uri-encoding: UTF-8
	warnning_email_corn_time: 0 15 08 ? * MON
	data_collect_corn_time: 0 40 09 ? * SUN,TUE,WED,THU,FRI,SAT
	newcs_email_corn_time: 0 10 18 ? * MON

生成对用configmap
sudo kubectl apply -f configmap.yaml
查看生成的configmap
sudo kubectl describe configmap cmtest

下一步挂载configmap

具体pod collection-pod.yaml文件如下：
apiVersion: v1
kind: Service
metadata:
  name: collection
  namespace: stg
  labels:
    app: collection
spec:
  type: NodePort
  ports:
  - port: 8646
    targetPort: 8646
    nodePort: 32224
  selector:
    app: collection
---
apiVersion: apps/v1
kind: Deployment 
metadata:
  name: collection 
  namespace: stg
  labels:
    app: collection 
spec:
  replicas: 1 
    selector:
    matchLabels:
      app: collection
  template:
    metadata:
      labels:
        app: collection
    spec:
      containers: 
      - name: collection
        image: 10.10.10.10/zongbu-sre/collection:v20210831 
        imagePullPolicy: IfNotPresent 
        ports:
        - containerPort: 8646 
        volumeMounts:
            - name: test
              mountPath: /var/smart-tg/collection-0.0.1-SNAPSHOT/config/config
      volumes:
        - name: test
          configMap:
            name: cmtest

生成pod以及service
sudo kubectl apply -f collection-pod.yaml