Little script I use for appending a tonne of dummy scrape configs to the end of a prometheus.yml configuration file.

generate_dummy_scrape_configs.py

from jinja2 import Template

file = open('prometheus.yml', 'a')

templ = Template(u'''\
  - job_name: {{ name }}
    metrics_path: /export
    params:
      command: [check_load]
    static_configs:
      - targets:
        - '127.0.0.1:5666'
        - 'drop_me'
    relabel_configs:
      - source_labels: [__address__]
        target_label: __param_target
      - source_labels: [__param_target]
        target_label: instance
      - source_labels: [__param_target]
        target_label: testLabel
      - source_labels: [__address__]
        regex: 'drop_me'
        action: drop
''')

for i in xrange(1,10000):
    print templ.render(
       name="nrpe" + str(i)
            )