http_rules.yml

    http_rules:
      - Conditions:
          - Field: host-header
            Values:
              - some.domain
        Actions:
          - RedirectConfig:
              Host: "jfkdsd.cloudfront.net"
              Path: "/#{path}"
              Port: "443"
              Protocol: "HTTPS"
              Query: "#{query}"
              StatusCode: "HTTP_301"
            Type: redirect

      - Conditions:
          - Field: path-pattern
            Values:
              - "/AutoDiscover/autodiscover.xml"
        Actions:
          - FixedResponseConfig:
              ContentType: "text/plain"
              MessageBody: "Not found here ..."
              StatusCode: "404"
            Type: fixed-response

listeners.yml

listeners:
          - Protocol: HTTP
            Port: 80
            DefaultActions:
              - Type: redirect
                RedirectConfig:
                  Protocol: HTTPS
                  Host: "#{host}"
                  Query: "#{query}"
                  Path: "/#{path}"
                  Port: "443"
                  StatusCode: HTTP_301
            Rules: "{{ http_rules | add_priority }}"

priority_filter.py

#!/usr/bin/python
class FilterModule(object):
    def filters(self):
        return {
            'add_priority': self.add_priority
        }

    def add_priority(self, input):
        retval = list()
        counter = 1
        for item in input:
            item['Priority'] = str(counter)
            counter += 1
            retval.append(item)
        return retval