Apptainer vs Docker cheat-sheet#
| Apptainer | Docker | Description |
|---|---|---|
| apptainer pull docker:// | docker pull | Pull docker image |
| apptainer run | docker run | Execute container |
| apptainer build | docker build | Build a new container |
| apptainer exec | docker exec | Run a command within container |
| apptainer shell | docker run -it | Enter into a shell within container |
| apptainer instance start | docker run -d | Run container as a service |
| apptainer instance stop | docker stop | Stop container |
| The Definition file (.def) | Dockerfile | Blueprint to build a container |