Kubernetes Nexus搭建Docker私有仓库

一.创建命名空间

1.命令方式

• 通过命令方式创建一个名为nexus3的namespace

  kubectl create namespace nexus3

2.yaml方式

• 通过yaml文件方式创建一个名为nexus3的namespace

  apiVersion: v1
  kind: Namespace
  metadata:
     name: nexus3
     labels:
       name: nexus3

  kubectl apply repo-nexus-ns.yaml 

二.创建PV/PVC

1.创建存储类

apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
  name: nexus3-nfs
provisioner: example.com/external-nfs
parameters:
  server: 10.23.23.45 #nfs服务器IP地址
  path: /usr1/nfs-share/nexus #nfs共享路径
  readOnly: "false"

kubectl apply nexus_class.yaml

注意：/usr1/nfs-share/nexus #nfs共享路径 设置成777权限

2.创建PV

apiVersion: v1
kind: PersistentVolume
metadata:
  name: nexus-pv
  namespace: nexus3
spec:
  capacity:
    storage: 600Gi
  volumeMode: Filesystem
  accessModes:
    - ReadWriteOnce
  persistentVolumeReclaimPolicy: Recycle
  storageClassName: nexus3-nfs
  nfs:
    path: /usr1/nfs-share/nexus #nfs共享路径
    server: 10.23.23.45 #nfs服务器IP地址

kubectl apply nexus_pv.yaml

3.创建PVC

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  name: nexus-pvc
  namespace: nexus3
spec:
  storageClassName: nexus3-nfs
  accessModes:
    - ReadWriteOnce
  resources:
    requests:
      storage: 600Gi

kubectl apply nexus_pvc.yaml

4.查看PV和PVC创建情况

kubectl get pv

三.K8S部署Nexus

1.创建配置文件

apiVersion: apps/v1
kind: Deployment
metadata:
  labels:
    app: nexus3
  name: nexus3
  namespace: nexus3
spec:
  replicas: 1
  selector:
    matchLabels:
      app: nexus3
  template:
    metadata:
      labels:
        app: nexus3
      name: nexus3
      namespace: nexus3
    spec:
      containers:
      - name: nexus3
        image: sonatype/nexus3
        imagePullPolicy: IfNotPresent
        ports:
        - containerPort: 8081
          protocol: TCP
          name: web
        - containerPort: 8082
          protocol: TCP
          name: docker-hosted
        - containerPort: 8083
          protocol: TCP
          name: docker-group
        volumeMounts:
        - name: nexus-data
          mountPath: /nexus-data
      volumes:
        - name: nexus-data
          persistentVolumeClaim:
            claimName: nexus-pvc
​
---
apiVersion: v1
kind: Service
metadata:
  name: nexus3
  namespace: nexus3
  labels:
    app: nexus3
spec:
  selector:
    app: nexus3
  type: NodePort
  sessionAffinity: None
  ports:
    - name: web
      protocol: TCP
      port: 8081
      targetPort: 8081
      nodePort: 30005
    - name: docker-hosted
      protocol: TCP
      port: 8082
      targetPort: 8082
      nodePort: 30006
    - name: docker-group
      protocol: TCP
      port: 8083
      targetPort: 8083
      nodePort: 30007

2.执行命令使其生效

kubectl apply -f nexus.yaml 

四.配置Nexus服务器

1.查询初始密码

kubectl exec XXXXXXXX -n nexus3 -- cat /nexus-data/admin.password

2.修改初始密码

五.创建自定义docker私有仓库

1.创建docker本地仓库