Always 'DockerRequirement'
Supply the contents of a Dockerfile which will be built using docker build.
The image id that will be used for docker run. May be a human-readable image name or the image identifier hash. May be skipped if dockerPull is specified, in which case the dockerPull image id must be used.
Provide HTTP URL to download and gunzip a Docker images using `docker import.
Specify a HTTP URL from which to download a Docker image using docker load.
Set the designated output directory to a specific location inside the Docker container.
Specify a Docker image to retrieve using docker pull.
Indicates that a workflow component should be run in a Docker container, and specifies how to fetch or build the image. If a CommandLineTool lists DockerRequirement under hints (or requirements), it may (or must) be run in the specified Docker container. The platform must first acquire or install the correct Docker image as specified by dockerPull, dockerImport, dockerLoad or dockerFile. The platform must execute the tool in the container using docker run with the appropriate Docker image and tool command line. The workflow platform may provide input files and the designated output directory through the use of volume bind mounts. The platform should rewrite file paths in the input object to correspond to the Docker bind mounted locations. That is, the platform should rewrite values in the parameter context such as runtime.outdir, runtime.tmpdir and others to be valid paths within the container. When running a tool contained in Docker, the workflow platform must not assume anything about the contents of the Docker container, such as the presence or absence of specific software, except to assume that the generated command line represents a valid command within the runtime environment of the container. ## Interaction with other requirements If EnvVarRequirement is specified alongside a DockerRequirement, the environment variables must be provided to Docker using --env or --env-file and interact with the container's preexisting environment as defined by Docker.