kubernetes部署mongoDB 单机版自定义配置文件、密码、日志路径等

缺乏、安全感 2023-06-17 15:56 73阅读 0赞

官方镜像地址： https://hub.docker.com/\_/mongo?tab=description

docker版的mongo移除了默认的/etc/mongo.conf, 修改了db数据存储路径为 /data/db.

创建configmap配置，注意不能加fork=true，否则Pod会变成Completed。

apiVersion: v1
    kind: ConfigMap
    metadata:
      name: mongodb-conf
    data:
      mongodb.conf: | dbpath=/data/middleware-data/mongodb logpath=/data/middleware-data/mongodb/mongodb.log pidfilepath=/data/middleware-data/mongodb/master.pid directoryperdb=true logappend=true bind_ip=0.0.0.0 port=27017

创建StatefulSet：

apiVersion: apps/v1
    kind: StatefulSet
    metadata:
      name: mongodb
    spec:
      replicas: 1
      serviceName: mongodb
      selector:
        matchLabels:
          name: mongodb
      template:
        metadata:
          labels:
            name: mongodb
        spec:
          containers:
          - name: mongodb
            image: mongo:4.2.1
            command:
            - sh
            - -c
            - "exec mongod -f /data/middleware-data/mongodb/conf/mongodb.conf"
            imagePullPolicy: IfNotPresent
            ports:
            - containerPort: 27017
              name: mongodb
              protocol: TCP
            volumeMounts:
            - name: mongodb-config
              mountPath: /data/middleware-data/mongodb/conf/
            - name: data
              mountPath: /data/middleware-data/mongodb/
          volumes:
          - name: mongodb-config
            configMap:
              name: mongodb-conf
          - name: data
            hostPath:
              path: /data/middleware-data/mongodb/

创建Service暴露端口：

kind: Service
    apiVersion: v1
    metadata:
      labels:
        name: mongodb
      name: mongodb
    spec:
      type: NodePort
      ports:
      - name: mongodb
        port: 27017
        targetPort: 27017
        nodePort: 30002
      selector:
        name: mongodb

接着使用以下命令添加用户和设置密码，并且尝试连接，以及修改密码：

[root@liabio mongodb]# kubectl exec -ti mongodb-0 -- mongo admin
    MongoDB shell version v4.2.1
    connecting to: mongodb://127.0.0.1:27017/admin?compressors=disabled&gssapiServiceName=mongodb
    Implicit session: session {  "id" : UUID("6d31af3f-3749-3111-87d2-7c8745pob66c") }
    MongoDB server version: 4.2.1
    Welcome to the MongoDB shell.
    For interactive help, type "help".
    For more comprehensive documentation, see
    	http://docs.mongodb.org/
    Questions? Try the support group
    	http://groups.google.com/group/mongodb-user
    Server has startup warnings: 
    2019-11-29T08:57:58.414+0000 I  CONTROL  [initandlisten] 
    2019-11-29T08:57:58.414+0000 I  CONTROL  [initandlisten] ** WARNING: Access control is not enabled for the database.
    2019-11-29T08:57:58.414+0000 I  CONTROL  [initandlisten] **          Read and write access to data and configuration is unrestricted.
    2019-11-29T08:57:58.414+0000 I  CONTROL  [initandlisten] 
    2019-11-29T08:57:58.414+0000 I  CONTROL  [initandlisten] 
    2019-11-29T08:57:58.414+0000 I  CONTROL  [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/enabled is 'always'.
    2019-11-29T08:57:58.414+0000 I  CONTROL  [initandlisten] **        We suggest setting it to 'never'
    2019-11-29T08:57:58.415+0000 I  CONTROL  [initandlisten] 
    2019-11-29T08:57:58.415+0000 I  CONTROL  [initandlisten] ** WARNING: /sys/kernel/mm/transparent_hugepage/defrag is 'always'.
    2019-11-29T08:57:58.415+0000 I  CONTROL  [initandlisten] **        We suggest setting it to 'never'
    2019-11-29T08:57:58.415+0000 I  CONTROL  [initandlisten] 
    ---
    Enable MongoDB's free cloud-based monitoring service, which will then receive and display metrics about your deployment (disk utilization, CPU, operation statistics, etc). The monitoring data will be available on a MongoDB website with a unique URL accessible to you and anyone you share the URL with. MongoDB may use this information to make product improvements and to suggest MongoDB products and deployment options to you. To enable free monitoring, run the following command: db.enableFreeMonitoring() To permanently disable this reminder, run the following command: db.disableFreeMonitoring() --- > db.createUser({ user:'admin',pwd:'910921',roles:[ { role:'userAdminAnyDatabase', db: 'admin'}]}); Successfully added user: { "user" : "admin", "roles" : [ { "role" : "userAdminAnyDatabase", "db" : "admin" } ] } > db.auth('admin', '910921')
    1
    > db.changeUserPassword("admin","390191");

`db.createUser({ user:'admin',pwd:'910921',roles:[ { role:'userAdminAnyDatabase', db: 'admin'}]});`  
admin用户只对admin这个db有权限。

要操作mall这个db，可以这样：

use mall;
    db.createUser({  user:'mall',pwd:'390191',roles:[ {  role:'readWrite', db: 'mall'}]});

查看权限：

db.system.users.find()

## 参考 ##

[docker安装各种中间件、数据库教程][docker]  
[docker安装mongodb并备份][docker_mongodb]  
[使用Docker和Kubernetes将MongoDB作为微服务运行][Docker_Kubernetes_MongoDB]

[docker]: https://www.runoob.com/docker/docker-install-mongodb.html
[docker_mongodb]: https://www.cnblogs.com/woshimrf/p/docker-install-mongodb-and-backup.html
[Docker_Kubernetes_MongoDB]: http://dockone.io/article/8918