Close#21.
Refactor environment variables to configuration file (config.yaml) and registration file (.runner).
The old environment variables are still supported, but warning logs will be printed.
Like:
```text
$ GITEA_DEBUG=true ./act_runner -c config.yaml daemon
INFO[0000] Starting runner daemon
WARN[0000] env GITEA_DEBUG has been ignored because config file is used
$ GITEA_DEBUG=true ./act_runner daemon
INFO[0000] Starting runner daemon
WARN[0000] env GITEA_DEBUG will be deprecated, please use config file instead
```
Reviewed-on: https://gitea.com/gitea/act_runner/pulls/90
Reviewed-by: Lunny Xiao <[email protected]>
Since the `exec` command does not use labels from `.runner`, there is no existing way to specify which Docker image to use for task execution.
This adds an `--image` flag for specifying it manually. The default remains `node:16-bullseye`.
Co-authored-by: Lunny Xiao <[email protected]>
Reviewed-on: https://gitea.com/gitea/act_runner/pulls/83
Reviewed-by: Jason Song <[email protected]>
Reviewed-by: Lunny Xiao <[email protected]>
Co-authored-by: telackey <[email protected]>
Co-committed-by: telackey <[email protected]>