new_contents: cutadapt_version = 'quay.io/ucsc_cgl/cutadapt:1.9--6bd44edd2b8f8f17e25c5a268fedaab65fa851d2'
  fastqc_version = 'quay.io/ucsc_cgl/fastqc:0.11.5--be13567d00cd4c586edf8ae47d991815c8c72a49'
  star_version = 'quay.io/ucsc_cgl/star:2.4.2a--bcbd5122b69ff6ac4ef61958e47bde94001cfe80'
  rsem_version = 'quay.io/ucsc_cgl/rsem:1.2.25--d4275175cc8df36967db460b06337a14f40d2f21'
  rsemgenemapping_version = 'quay.io/ucsc_cgl/gencode_hugo_mapping:1.0--cb4865d02f9199462e66410f515c4dabbd061e4d'
  kallisto_version = 'quay.io/ucsc_cgl/kallisto:0.43.1--355c19b1fb6fbb85f7f8293e95fb8a1e9d0da163'
  hera_version = 'quay.io/ucsc_cgl/hera:1.1--5f2b2b45776536d46a60b377b52b846694c534bd'
  
  samtools_version = 'quay.io/ucsc_cgl/samtools:1.5--98b58ba05641ee98fa98414ed28b53ac3048bc09'
  picardtools_version = 'quay.io/ucsc_cgl/picardtools:2.10.9--23fc31175415b14dbf337216f9ae14d3acc3d1eb'
  gdc_version = 'jvivian/gdc-client:1.0'
  
subject: Add Docker tools version file