暴露GKE mongo权限改造到互联网

Question

我现在正在尝试实施新系统。我的系统将分为2个集群。首先是用于计算工作。它会被CI/CD频繁更改。然后为了防止我的低年级学生发生意外，也节省成本。因为在计算机节点上不需要使用100GB之类的数据库

现在我正在使用helm设置我的mongo replicaset。我的配置工作正常。这是我在安装过程中的终端日志。

每个节点安装100GB。它们是3个节点。

$ gcloud container clusters create elmo --disk-size=100GB --enable-cloud-logging --enable-cloud-monitoring

我在values.yaml中更改了用户名和密码

mongodbUsername: myuser
mongodbPassword: mypassword

但是，当我跳转到pod时。它不需要我做任何身份验证。我可以执行show dbs

$ kubectl exec -it ipman-mongodb-replicaset-0 mongo

MongoDB shell version v4.0.6
connecting to: mongodb://127.0.0.1:27017/?gssapiServiceName=mongodb
Implicit session: session { "id" : UUID("966e85fd-8857-46ac-a2a4-a8b560e37104") }
MongoDB server version: 4.0.6
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
2019-03-20T12:15:51.266+0000 I STORAGE  [main] In File::open(), ::open for '//.mongorc.js' failed with Unknown error
Server has startup warnings:
2019-03-20T11:36:03.768+0000 I STORAGE  [initandlisten]
2019-03-20T11:36:03.768+0000 I STORAGE  [initandlisten] ** WARNING: Using the XFS filesystem is strongly recommended with the WiredTiger storage engine
2019-03-20T11:36:03.768+0000 I STORAGE  [initandlisten] **          See http://dochub.mongodb.org/core/prodnotes-filesystem
2019-03-20T11:36:05.082+0000 I CONTROL  [initandlisten]
2019-03-20T11:36:05.082+0000 I CONTROL  [initandlisten] ** WARNING: Access control is not enabled for the database.
2019-03-20T11:36:05.082+0000 I CONTROL  [initandlisten] **          Read and write access to data and configuration is unrestricted.
2019-03-20T11:36:05.083+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()
---

rs0:PRIMARY> show dbs
admin   0.000GB
config  0.000GB
local   0.000GB

我可以看到2个服务正在运行mongoDB-副本集

$ kubectl describe svc ipman-mongodb-replicaset

Name:              ipman-mongodb-replicaset
Namespace:         default
Labels:            app=mongodb-replicaset
                   chart=mongodb-replicaset-3.9.2
                   heritage=Tiller
                   release=ipman
Annotations:       service.alpha.kubernetes.io/tolerate-unready-endpoints: true
Selector:          app=mongodb-replicaset,release=ipman
Type:              ClusterIP
IP:                None
Port:              mongodb  27017/TCP
TargetPort:        27017/TCP
Endpoints:         10.60.1.5:27017,10.60.2.7:27017,10.60.2.8:27017
Session Affinity:  None
Events:            <none>

$ kubectl describe svc ipman-mongodb-replicaset-client

Name:              ipman-mongodb-replicaset-client
Namespace:         default
Labels:            app=mongodb-replicaset
                   chart=mongodb-replicaset-3.9.2
                   heritage=Tiller
                   release=ipman
Annotations:       <none>
Selector:          app=mongodb-replicaset,release=ipman
Type:              ClusterIP
IP:                None
Port:              mongodb  27017/TCP
TargetPort:        27017/TCP
Endpoints:         10.60.1.5:27017,10.60.2.7:27017,10.60.2.8:27017
Session Affinity:  None
Events:            <none>

我看到这里和这里。我有3个IP地址。我应该用哪一个？

我认为负载平衡器可能不适合我的需要，因为它通常与后端服务一起使用，以平衡节点之间的负载。对于我的情况。写的是母版，读的是副本。

$ gcloud compute instances list
NAME                                 ZONE               MACHINE_TYPE   PREEMPTIBLE  INTERNAL_IP  EXTERNAL_IP     STATUS
gke-elmo-default-pool-c5dc6e86-1j8v  asia-southeast1-a  n1-standard-1               10.148.0.59  35.197.148.201  RUNNING
gke-elmo-default-pool-c5dc6e86-5hs4  asia-southeast1-a  n1-standard-1               10.148.0.57  35.198.217.71   RUNNING
gke-elmo-default-pool-c5dc6e86-wh0l  asia-southeast1-a  n1-standard-1               10.148.0.58  35.197.128.107  RUNNING

问题：

>

为什么我的用户名：密码在进行身份验证时不计入帐户？

如何公开我的mongo shell并让来自internet的客户端使用我的数据库服务器

mongo -u <user> -p <pass> --host kluster.me.com --port 27017

我已经查看了驾驶图文档。我担心我用错了k8s。所以我决定在这里问一下。

Answer 1

我无法回答密码问题，但为DB使用单独的集群可能不是最佳选择。通过创建一个单独的集群，您将被迫向世界公开您的敏感数据库。这并不理想。

我建议您在现有集群上部署mongo。通过这种方式，只需使用服务名称作为主机名，就可以将计算工作负载连接到mongo。

如果您的mongo需要更大的驱动器，只需使用持久性磁盘并在使用helm创建mongo安装时指定大小。

例如：

helm install mongo-replicaset --name whatever --set persistentVolume.size=100Gi

在您的值中。yaml文件，您有一个名为持久性的部分，当它应该被称为持久性卷时。

我建议您的值。yaml仅包含要更改的值，而不是所有内容。