templates/agent-conf.d/haproxy.yaml.erb

#
# MANAGED BY PUPPET
#

init_config:

instances:

<%- (Array(@_instances)).each do |instance| -%>
    - url: <%= instance['url'] %>
    <%- if instance['creds'] -%>
      <%- instance['creds'].each do |k, v| -%>
      <%= k %>: <%= v %>
      <%- end -%>
    <%- end -%>
<% end -%>