old_contents: #!/usr/bin/env python
  
  import os
  from jinja2 import Template
  
  clusters = ['2_6', '2_7', '2_8']
  # Commenting out this as we only have one example and it breaks
  tiles = [] # [d for d in os.listdir('../examples') if os.path.isdir(os.path.join('../examples', d))]
  
  with open('pipeline.yml.jinja2', 'r') as f:
    t = Template(f.read());
  
  with open('pipeline.yml', 'w') as f:
    f.write(t.render(clusters=clusters, tiles=tiles))
  
  print("Successfully generated pipeline.yml")
  
new_contents: #!/usr/bin/env python
  
  import os
  from jinja2 import Template
  
  clusters = ['2_7_lts', '2_9', '2_10', '2_11_lts2']
  # Commenting out this as we only have one example and it breaks
  tiles = [] # [d for d in os.listdir('../examples') if os.path.isdir(os.path.join('../examples', d))]
  
  with open('pipeline.yml.jinja2', 'r') as f:
    t = Template(f.read());
  
  with open('pipeline.yml', 'w') as f:
    f.write(t.render(clusters=clusters, tiles=tiles))
  
  print("Successfully generated pipeline.yml")
  
subject: Update versions to test against in CI.