背景：

java程序员们想弄一个私有maven仓库，嗯正常的是用nexus or artfactory? artfactory是两三年前听jfrog的讲座知道的，程序说他原来用的nexus。那就搞一个nexus了。
基础环境参照：https://cloud.tencent.com/developer/article/1806089—kubernetes集群1.20.5版本（当然了进行了小版本升级1.21了，系列笔记中有提）
https://cloud.tencent.com/developer/article/1806896—网关层的代理traefik
https://cloud.tencent.com/developer/article/1806549—存储块腾讯云cbs
all on kubernetes 是个人的原则。就在kubernetes的环境上搭建一个私有maven仓库了。

1. nexus3 on kubernetes

注：不做特殊说明，工具类软件我都安装在kube-ops namespace命名空间下

1. 创建pv,pvc

嗯存储用的都是腾讯云的cbs存储

[root@sh-master-01 ~]# kubectl get storageclass
NAME      PROVISIONER                 RECLAIMPOLICY   VOLUMEBINDINGMODE   ALLOWVOLUMEEXPANSION   AGE
cbs-csi   com.tencent.cloud.csi.cbs   Delete          Immediate           false                  70d

cat pvc.yaml

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  namespace： kube-ops
  name: sonatype-nexus
  labels:
    app: sonatype-nexus
spec:
  accessModes:
  - ReadWriteOnce
  resources:
    requests:
      storage: 50Gi
  storageClassName: cbs-csi
  selector:
    matchLabels:
      app: sonatype-nexus

kubectl apply -f pvc.yaml

嗯好吧cbs-csi 不支持selector的标签….将就的用吧…腾讯一直讲自己今年的开源项目是最多的，但是如kubernetes-csi-tencentcloud这样的项目，三年了吧提交了issue也没有关闭呢也没有人回复。所以能用就行了…还是适应它吧……

kubectl delete -f pvc.yaml

cat pvc.yaml

apiVersion: v1
kind: PersistentVolumeClaim
metadata:
  namespace: kube-ops
  name: sonatype-nexus
  labels:
    app: sonatype-nexus
spec:
  accessModes:
  - ReadWriteOnce
  resources:
    requests:
      storage: 50Gi
  storageClassName: cbs-csi

kubectl apply -f pvc.yaml
kubectl describe pvc sonatype-nexus -n kube-ops
kubectl get pvc -n kube-ops

2、部署 Sonatype Nexus3

cat nexus.yaml

apiVersion: v1
kind: Service
metadata:
  name: sonatype-nexus
  labels:
    app: sonatype-nexus
spec:
  type: ClusterIP
  ports:
  - name: sonatype-nexus
    port: 8081
    targetPort: 8081
    protocol: TCP
  selector:
    app: sonatype-nexus
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: sonatype-nexus
  labels:
    app: sonatype-nexus
spec:
  replicas: 1
  selector:
    matchLabels:
      app: sonatype-nexus
  template:
    metadata:
      labels:
        app: sonatype-nexus
    spec:
      containers:
      - name: sonatype-nexus
        image: sonatype/nexus3:3.30.0
        imagePullPolicy: IfNotPresent
        ports:
        - name: server
          containerPort: 8081
        livenessProbe:          #存活探针
          httpGet:
            path: /
            port: 8081
          initialDelaySeconds: 30
          periodSeconds: 30
          failureThreshold: 6
        readinessProbe:         #就绪探针
          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，由于资源有限，所以都是设置的最小值
            memory: 2048Mi   
          requests:
            cpu: 500m
            memory: 1024Mi
        volumeMounts:
        - name: sonatype-nexus-data
          mountPath: /nexus-data
      volumes:
      - name: sonatype-nexus-data
        persistentVolumeClaim:
          claimName: sonatype-nexus     #设置为上面创建的 PVC

[root@sh-master-01 qa]# kubectl get pods -n kube-ops
NAME                              READY   STATUS             RESTARTS   AGE
gitlab-b9d95f784-7h8dt            1/1     Running            0          49d
gitlab-redis-cd56f5cc9-g9gm8      1/1     Running            0          61d
jenkins-0                         2/2     Running            0          49d
postgresql-5bd6b44d45-wzkwr       1/1     Running            1          61d
sonatype-nexus-5d98d78b86-nk75v   0/1     CrashLoopBackOff   6          9m5s

查看报错如下：

嗯权限不够咋整….嗯由于pvc只能挂载单个pod,先执行：

kubectl delete -f nexus.yaml -n kube-ops

然后修改nexus.yaml如下：
cat nexus.yaml

apiVersion: v1
kind: Service
metadata:
  name: sonatype-nexus
  labels:
    app: sonatype-nexus
spec:
  type: ClusterIP
  ports:
  - name: sonatype-nexus
    port: 8081
    targetPort: 8081
    protocol: TCP
  selector:
    app: sonatype-nexus
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: sonatype-nexus
  labels:
    app: sonatype-nexus
spec:
  replicas: 1
  selector:
    matchLabels:
      app: sonatype-nexus
  template:
    metadata:
      labels:
        app: sonatype-nexus
    spec:
      initContainers:
      - name: init
        image: busybox
        command: ["sh", "-c", "chown -R 200:200 /nexus-data"]
        volumeMounts:
        - name: sonatype-nexus-data
          mountPath: /nexus-data
      containers:
      - name: sonatype-nexus
        image: sonatype/nexus3:3.30.0
        imagePullPolicy: IfNotPresent
        ports:
        - name: server
          containerPort: 8081
        livenessProbe:          #存活探针
          httpGet:
            path: /
            port: 8081
          initialDelaySeconds: 30
          periodSeconds: 30
          failureThreshold: 6
        readinessProbe:         #就绪探针
          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，由于资源有限，所以都是设置的最小值
            memory: 2048Mi   
          requests:
            cpu: 500m
            memory: 1024Mi
        volumeMounts:
        - name: sonatype-nexus-data
          mountPath: /nexus-data
      volumes:
      - name: sonatype-nexus-data
        persistentVolumeClaim:
          claimName: sonatype-nexus     #设置为上面创建的 PVC

[root@sh-master-01 nexus]# kubectl apply -f nexus.yaml -n kube-ops
service/sonatype-nexus created
deployment.apps/sonatype-nexus created
[root@sh-master-01 nexus]# kubectl get pods -n kube-ops
NAME                              READY   STATUS     RESTARTS   AGE
gitlab-b9d95f784-7h8dt            1/1     Running    0          49d
gitlab-redis-cd56f5cc9-g9gm8      1/1     Running    0          61d
jenkins-0                         2/2     Running    0          49d
postgresql-5bd6b44d45-wzkwr       1/1     Running    1          61d
sonatype-nexus-79f85cc57c-scb9b   0/1     Init:0/1   0          28s
[root@sh-master-01 nexus]# kubectl get pods -n kube-ops
NAME                              READY   STATUS            RESTARTS   AGE
gitlab-b9d95f784-7h8dt            1/1     Running           0          49d
gitlab-redis-cd56f5cc9-g9gm8      1/1     Running           0          61d
jenkins-0                         2/2     Running           0          49d
postgresql-5bd6b44d45-wzkwr       1/1     Running           1          61d
sonatype-nexus-79f85cc57c-scb9b   0/1     PodInitializing   0          2m

kubectl describe pods sonatype-nexus-79f85cc57c-scb9b -n kube-ops

嗯可以running了
然后获取一下用户名密码：

3. ingress代理对外暴露应用

做一个ingress 代理？
cat ingress.yaml

apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: nexus-ingress
  namespace: kube-ops
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: / 
    kubernetes.io/ingress.class: traefik  
    traefik.ingress.kubernetes.io/router.entrypoints: web
    nginx.ingress.kubernetes.io/ssl-redirect: 'true'
spec:
  rules:
  - host: nexus.sainaihe.com
    http:
      paths:
      - pathType: Prefix
        path: /
        backend:
          service:
            name: sonatype-nexus
            port:
              number: 8081

kubectl apply -f ingress.yaml

4. 浏览器访问 nexus服务，并修改nexus初始密码：

嗯跨域了可咋整？我的两个主域名都泛域名强制跳转https了，短时间没有想好怎么解决….我就直接用了另外一个单独域名。不强跳可以直接访问了。同理我是不是可以加一个https的单独的设置….有时间了再试一下。先跑通一下nexus的代理应用……
http访问：
如下。第一次是要修改密码的关于初始密码的获取可以参照：1.2中获取初始密码的方式

嗯对了呢记得关闭匿名访问。anonymous

2. 添加一个aliyun maven代理跑一下

1. 添加一个aliyun maven 代理

打开 Repositories->Create repository->maven2(proxy) 并设置要代理的 Maven 仓库名称与地址

设置“仓库名称”与“仓库地址”。

aliyun 仓库地址：http://maven.aliyun.com/nexus/content/groups/public/

保存上面设置后回到仓库页面，可以看到已经添加了一个新的仓库 aliyun.

2. 设置aliyun maven优先级

打开 Repositories->maven public 并设置代理仓库优先级置顶

3. 本地maven私服仓库配置

设置 maven 的 Settings.xml 文件，按照下面配置进行设置私服地址和验证的用户名、密码。

3 .创建一个maven项目测试

1. 拉取测试

随手打开一个idea项目添加了一个进行拉取测试

更新maven项目：

ok如下可以从个人配置的maven代理仓库更新了！

2. 推送设置

我是盗用了下程序的ava maven项目，pom.xml添加如下配置：

<distributionManagement>
    <!-- Maven 上传设置 -->
    <repository>
        <id>nexus</id>   <!-- 保持和Settings.xml中配置的Server ID一致 -->
        <name>releases</name>
        <url>http://http://nexus.xxx.com//repository/maven-releases/</url>  <!-- 推送到Maven仓库的maven-releases下 -->
    </repository>
</distributionManagement>

.当然了仓库自己新建了两个：zhangpeng-releases对应release
zhangpeng-snapshots 对应snapshots

、
mvn deploy打包：

登陆nexus:

嗯对我来说这就算是成功了……

kubernetes

Kubernetes 中部署 Maven 私有仓库 Sonatype Nexus3

背景：