How can I open port 80 for http for my service or instance on CODE-DE

Log in to your CODE-DE hosting account with Horizon interface: https://cloud.fra1-1.cloudferro.com/auth/login/?next=/.

As a general introduction to Security Groups, please see How to use Security Groups in Horizon on CODE-DE.

To open a new port for a service on an instance, click Project -> Network -> Security Groups and click on Create Security Group.

By default, the newly created group will have two Egress (outgoing) rules - for IPv4 and IPv6.

You need to create a new Ingress (incoming) rule that should look like this:

Ingress    IPv4    TCP    80 (HTTP)    0.0.0.0/0

To do that, click on button + Add Rule and enter the following data:

After creating a new Security Group you have to add it to your instance.

To do so, simply click Project -> Compute -> Instances, then select Edit Security Groups and add it by clicking the + button.