Apache
The Apache HTTP Server Project is an effort to develop and maintain an open-source HTTP server for modern operating systems including UNIX and Windows.
Simple Setup
Add the apache2 package:
# apk add apache2
Start the service:
# rc-service apache2 start
Navigate a browser to the machine's address; there you should see the default "It works" page.
Enable apache on startup (if needed):
# rc-update add apache2
Edit the configuration in /etc/apache2/ and run
# rc-service apache2 restart
to enable your changes