TS cache config creates duplicate lines in ip_allow.yaml for mid servers

[AbdelrahmanElawady]

This Bug Report affects these Traffic Control components:

• Traffic Control Cache Config (t3c, formerly ORT)

What did you do?

• Run CDN in a Box
• Display ip_allow.yaml for mid-01 or mid-02 cache servers with docker-compose exec mid-01 cat /opt/trafficserver/etc/trafficserver/ip_allow.yaml

What did you expect to happen?

Single entries for 127.0.0.1 and ::1

What actually happened?

ip_allow:
  - apply: in
    ip_addrs: ::1
    action: allow
    methods:
      - ALL
  - apply: in
    ip_addrs: 127.0.0.1
    action: allow
    methods:
      - ALL
  ...
  - apply: in
    ip_addrs: 127.0.0.1
    action: allow
    methods:
      - ALL
  ...
  - apply: in
    ip_addrs: ::1
    action: allow
    methods:
      - ALL