-`app_run`: Builds the image containing all runtime dependencies for CCF, as well as the latest release of CCF (as per https://github.com/microsoft/CCF/releases/latest). To be used by CCF operators.
-`ccf_ci`: Builds the image containing all build dependencies for CCF itself. To be used by CCF contributors. It is also used by CCF Continuous Integration pipeline.
-`ccf_ci_built`: Builds the image containing all build dependencies for CCF itself as well as CCF source and a build. To be used by CCF contributors. It is also used by CCF Continuous Integration pipeline.