Support AEWeb certificates

[samuelmanzanera]

Description

This change brings the SSL certificate support in AEWeb deployment along with DNSLink configuration.

Fixes #449

Type of change

• New feature (non-breaking change which adds functionality)

How Has This Been Tested?

Setup

• Need to install the certificate located in priv/cert/selfsigned.pem in the OS keychain and to trust it (for HTTPS in localhost)

• Need to use Add SSL certificate and key aeweb-cli#78 for SSL certificate deployment

• Need to define a local DNS server like dnsmasq

• Append at the end of the configuration for DNS in /etc/dnsmasq.conf

cname=example.com,localhost 
txt-record=_dnslink.example.com,"_dnslink=/archethic/ADDRESS_OF_THE_REF_TX"

• Create file: /etc/resolver/example.com with

nameserver 127.0.0.1

• Restart dnsmasq

• Need to create self-signed certificate with : mix phx.gen.cert example.com -o example — creating a new key and certificate

• Need to install the certificate in the OS keychain and to trust it.

How to

• Deploy a website and use the SSL certificate in the AEWeb CLI to load the certificate and encrypted the SSL key
• Visit: example.com:5000 (Port in dev for HTTPS), the deployed website should be rendered without trouble.

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• Any dependent changes have been merged and published in downstream modules