Proposal of shared credentials across gridscale tools.

[nvthongswansea]

Regarding to #124. I, @bkircher, and the customers really want to have shared-credential feature in all gridscale tools (which are built on top of gridscale public API). The concept is to define a single config file in a common directory, e.g., `$HOME/.config/gridscale/", which will be used by any gridscale tools. This shared config file can also be created by any gs tools (incl. libraries). I would like to propose a schema of this config file as below:

1. It locates at User-level Configuration directory:

• Linux: $XDG_CONFIG_HOME/gridscale/config.yml or $HOME/.config/gridscale/config.yml
• MacOS: $HOME/Library/Application Support/gridscale/config.yml
• Windows: %APPDATA%\gridscale\config.yml or C:\Users\%USER%\AppData\Roaming\gridscale\config.yml

2. It is a yaml file with following scheme:

accounts:
- name: default
  userId: xx-xxx-xxx-xxx-xxx
  token: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
  url: https://api.gridscale.io
- name: second-project
  userId: xx-xxx-xxx-xxx-xxx
  token: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
  url: https://api.gridscale.io

Please feel free to comment.

[bkircher]

Hey thanks for opening this!

All looks good here. I would name the file projects.yaml rather than config.yml and also the top-level list, I would name projects: rather than accounts:. This would be more consistent with what is in the panel and in the UI. "Account" really is a new word.

[nvthongswansea]

@bkircher that sounds great.

[bkircher]

OK cool. You think we should wait a couple more days to give other's a chance to answer?

...before we start implementing that?

I could do the changes in gscloud and the Python library.

[nvthongswansea]

@bkircher sure, I've already opened issues in those repos. Just wait!

[itakouna]

I'm with changing the accounts to projects, but I would rather keep gridscale/config.yml

[bkircher]

OK, to sum up, path will be gridscale/config.yaml in the usual platform specific locations and contents will be like

projects:
- name: default
  userId: xyz
  token: xyz
  url: https://api.gridscale.io
- name: somthing-else
  userId: xyz
  token: xyz
  url: https://api.gridscale.io

[JanLukasGithub]

If you rename accounts to projects though, you break a lot of stuff in gscloud, because you don't want to use projects in the config and accounts everywhere else, so changing the --account flag, the GRIDSCALE_ACCOUNT environment variable and so on is necessary. That results in this change, and also means everyone using gscloud has to change a lot of things