old_contents: import pandas as pd
  import sys
  
  
  df = pd.read_csv(sys.argv[1])
  df.columns = [c.lower() for c in df.columns]
  
  from sqlalchemy import create_engine
  engine = create_engine('postgresql://pcawg_admin:pcawg@localhost:5432/germline_genotype_tracking')
  
  df.to_sql("pcawg_samples", engine)
new_contents: import pandas as pd
  import sys
  
  
  df = pd.read_csv(sys.argv[1])
  df.columns = [c.lower() for c in df.columns]
  
  from sqlalchemy import create_engine
  engine = create_engine('postgresql://pcawg_admin:pcawg@run-tracking-db.service.consul:5432/germline_genotype_tracking')
  
  df.to_sql("pcawg_samples", engine)
subject: Use Tracking DB Service URL rather than localhost in the DB connection string.