Containers images sometime comes from a private repository.
Sometime even with multiple login to download image from different registry.
```
Add container image private/private: latest
```
Typically, the command "podman login" is used to add credentials for private image repositories.
But I propose the implementation of [auth.json](https://github.com/containers/image/blob/main/docs/containers-auth.json.5.md) file which will be generated each time there's a commit.
This gives the ability to specify up to per image credentials.
For example, with local registry from the documentation:
```
{
"auths": {
"my-registry.local/foo/bar/image": {
"auth": "…base64..."
},
"my-registry. Local/foo": {
"auth": "…base64..."
},
"my-registry. Local": {
"auth": "…base64..."
},
}
}
```