Suggestion of Secret service using etcd

[jihyungSong]

Propose Date : 2022-11-17
Proposer : @jihyungSong @whdalsrnt

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Currently, Cloudforet is to store sensitive data such as the user's Access Key in a more safety way through the Secret micro service.
(https://github.com/cloudforet-io/secret)

About the Secret service, it is supported using various backend systems.

• AWS Secrets Manager
• Consul by Hashicorp
• Vault by Hashicorp

I suggest to use etcd as a backend for Secret service.
(https://etcd.io/)

etcd is a strongly consistent, distributed key-value store that provides a reliable way to store data that needs to be accessed by a distributed system or cluster of machines.

Since most of the data by the users is in the key-values type, it is very suitable to use etcd, and Kubernetes also uses etcd by default, it is good to integrate with Cloudforet.

Basically, etcd is not stored in an encrypted, but it is not difficult to implement encryption and decryption of data before being stored in etcd through the handler structure of the Secret service.

[jihyungSong]

An issue related to etcd connector development has been generated.

• Add etcd connector secret#12