Add bg to nextflow

.gitlab-ci.yml

@@ -16,7 +16,7 @@ integration_se:
   - hostname
   - ulimit -a
   - trap 'echo trapping ttou' 22
-  - nohup nextflow run ./workflow/test.nf --deriva ./test_data/auth/credential.json --bdbag ./test_data/auth/cookies.txt --repRID 16-1ZX4
+  - nextflow -bg run ./workflow/test.nf --deriva ./test_data/auth/credential.json --bdbag ./test_data/auth/cookies.txt --repRID 16-1ZX4
 
 integration_pe:
   stage: integration