open oracle cloud 80 port

found this answer at stackoverflow

I wasted a lot of time on this. I wish I had found this first: https://docs.cloud.oracle.com/en-us/iaas/developer-tutorials/tutorials/apache-on-ubuntu/01oci-ubuntu-apache-summary.htm

configure ingress route for port 80

install ubuntu.

install apache/nginx

curl localhost should bring back webpage in text format, however fails over internet.

forget ufw firewall - this may cause issues with the Oracle firewall

use

$ sudo iptables -I INPUT 6 -m state –state NEW -p tcp –dport 80 -j ACCEPT
$ sudo netfilter-persistent save
test your web page over internet