It is needed, otherwise leads to samples/normal.tar.gz file not found, etc... i.e:
docker run -it -e REDWOOD_ENDPOINT=https://storage.dcc.umccr.nopcode.org -v $(pwd)/application-redwood.properties:/dcc/dcc-redwood-client/conf/application-redwood.properties -v $(pwd):/data -v $(pwd)/three_manifest.tsv:/manifests/manifest.tsv -v $(pwd)/outputs:/outputs -v $(pwd)/samples:/samples quay.io/ucsc_cgl/core-client:1.1.1 spinnaker-upload /manifests/manifest.tsv