ports/databases/prometheus-postgres-exporter/files/postgres_exporter.yml.sample

# use auth_modules to provide authentication data for connections:

#auth_modules:
#  my_module:
#    type: userpass
#    userpass:
#      username: prometheus
#      password: 'a-good-password'
#    options:
#      dbname: template1
#      sslmode: verify-full