系统环境

• Kubernetes 版本：1.20.0
• Sonatype Nexus 版本：3.25.1-04

Nexus3简介

Nexus 是 Maven 仓库管理器，通过 nexus 可以搭建 Maven仓库，极大的简化了本地内部仓库的维护和外部仓库的访问，同时是一套开箱即用的系统不需要数据库，并且还提供强大的仓库管理、构建、搜索等功能

优点

• 节省外网带宽
• 加速Maven构建
• 可以为本地建立本地内部仓库
• 方便项目组存放各种jar的管理

kubernetes部署Nexus3

nexus.yaml

[root@k8s01 nexus]# vim nexus.yaml 
---
apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: nexus-pvc
  namespace: tools-env
  labels:
    app: nexus
spec:
  accessModes:
    - ReadWriteMany
  resources:
    requests:
      storage: 50Gi
  storageClassName: managed-nfs-storage
---
apiVersion: v1
kind: Service
metadata:
  name: nexus
  namespace: tools-env
  labels:
    app: nexus
spec:
  type: NodePort
  ports:
  - name: nexus
    port: 8081
    targetPort: 8081
    nodePort: 30881
    protocol: TCP
  selector:
    app: nexus
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: nexus
  namespace: tools-env
  labels:
    app: nexus
spec:
  replicas: 1
  selector:
    matchLabels:
      app: nexus
  template:
    metadata:
      labels:
        app: nexus
    spec:
      containers:
      - name: nexus
        image: sonatype/nexus3:3.25.1
        imagePullPolicy: IfNotPresent
        ports:
        - name: nexus
          containerPort: 8081
        livenessProbe:          
          httpGet:
            path: /
            port: 8081
          initialDelaySeconds: 30
          periodSeconds: 30
          failureThreshold: 6
        readinessProbe:        
          httpGet:
            path: /
            port: 8081
          initialDelaySeconds: 30
          periodSeconds: 30
          failureThreshold: 6
        env:
        - name: INSTALL4J_ADD_VM_PARAMS  #设置分配资源大小，一定要等于或小于resources设置的值
          value: "
                  -Xms1200M 
                  -Xmx1200M 
                  -XX:MaxDirectMemorySize=2G 
                  -XX:+UnlockExperimentalVMOptions 
                  -XX:+UseCGroupMemoryLimitForHeap
                 "
        resources:      #资源限制
          limits:
            cpu: 1000m  #推荐设置为4000m以上cpu
            memory: 2048Mi   
          requests:
            cpu: 500m
            memory: 1024Mi
        volumeMounts:
        - name: nexus-data
          mountPath: /nexus-data
      volumes:
      - name: nexus-data
        persistentVolumeClaim:
          claimName: nexus-pvc
          
[root@k8s01 nexus]# kubectl apply -f nexus.yaml 
persistentvolumeclaim/nexus-pvc created
service/nexus created
deployment.apps/nexus created

获取nexus密码

Nexus3 创建完成后，会创建默认管理员用户"admin"，且生成一个随机密码存储在持久化目录 admin.password 文件中，通过以下密码获取

[root@k8s01 ~]# kubectl exec -it -n tools-env nexus-5bc994c5ff-b8pts cat /nexus-data/admin.password

4060b6f5-f608-43a7-8c7f-4fc474fbdb27

访问Nexus

输入IP:30881访问nexus