Comment 12 for bug 1834974

Re-opening this. With Juju 2.7.2 and ports open, firewall rules are still missing:

Juju status:

| content-cache active 2 content-cache local 0 ubuntu exposed
| ...
| content-cache/1* active idle 1 150.136.239.201 80/tcp,9145/tcp ready

Yet, firewall rules on the unit:

| ubuntu@juju-5687ef-1:~$ sudo iptables -L -vn
| Chain INPUT (policy ACCEPT 0 packets, 0 bytes)
| pkts bytes target prot opt in out source destination
| 461K 427M ACCEPT all -- * * 0.0.0.0/0 0.0.0.0/0 state RELATED,ESTABLISHED
| 13 697 ACCEPT icmp -- * * 0.0.0.0/0 0.0.0.0/0
| 23980 1975K ACCEPT all -- lo * 0.0.0.0/0 0.0.0.0/0
| 0 0 ACCEPT udp -- * * 0.0.0.0/0 0.0.0.0/0 udp spt:123
| 994 59196 ACCEPT tcp -- * * 0.0.0.0/0 0.0.0.0/0 state NEW tcp dpt:22
| 4589 228K REJECT all -- * * 0.0.0.0/0 0.0.0.0/0 reject-with icmp-host-prohibited