Codespaces Container Refused Connection

[jfullstackdev]

I cannot connect to localhost of the container, what I'm missing ? It's always refusing.

I did all possible hostname including the private IP Address but to no avail,

what is the specific hostname of localhost if it's in a container ?

I created an issue here also

https://github.com/Borvik/vscode-postgres/issues/233

that is the VSCode Extension repo,