Hi Luc. I will be uploading this script to a github repo later this week after which I will edit this post.

In terms of whether I would upload the encrypted values file to Github, it depends. If it is a sample project then sure, why not. If the encrypted values file belongs to your customer or a sensitive system, the answer would be certainly not.

The idea here is that you can safely upload your encrypted values files to your own private repo. In the event that it is compromised you have additional safeguards that your data is encrypted. However, I would not willingly upload it despite the odds being very low that someone would figure your encrypted details out.

Finally, Helm does not make use of async encryption. By definition, the encryption is symettrical, so in the case of Helm it's not really an option unless you build a different non-Helm encryption tool.

Hope this answers your question