Default Working Directory: /home/runner/work/<repo-name>/<repo-name>
Variable Name: GITHUB_WORKSPACE
The same directory is also used by the checkout action
Before the checkout action, clones a repo the content of working directory is cleared
Docker Actions
Docker Actions can only to executed on Linux Runners
When using Docker action the working directory is mounted as a volume. If any directories are created in the container it will be usage in the next steps
In the Container the Working Directory is mounted at /github/workspace/
Composite Actions
The files that where included along with the composite action repo can be accessed at /home/runner/work/_actions/repo-owner/name-of-action-repo/
or using GITHUB_ACTION_PATH
variable