nextflow.container

The nextflow.container package implements the integration with container runtimes.

Class Diagram

classDiagram %% %% nextflow.container %% direction LR BashWrapperBuilder --> ContainerBuilder : build ContainerBuilder <|-- CharliecloudBuilder ContainerBuilder <|-- DockerBuilder ContainerBuilder <|-- PodmanBuilder ContainerBuilder <|-- ShifterBuilder ContainerBuilder <|-- SingularityBuilder ContainerBuilder <|-- UdockerBuilder SingularityBuilder <|-- ApptainerBuilder

Note

Some classes may be excluded from the above diagram for brevity.

Notes

The ContainerBuilder class is the base class for all container runtimes supported by Nextflow. It produces the container wrapper command for a given task run.

Executors that support containerized tasks insert this wrapper command into the task wrapper script (.command.run). Executors that are container-native, i.e. that launch the task wrapper itself inside a container, don’t need to generate a container wrapper command.