Upgraded to Alpine Linux 3.14

Create symlink to php

Switch to trafex/php-nginx repository

Upgrade to PHP8.0

Upgraded Alpine Linux to 3.13

Let nginx determine the amount of worker processes based on the numbe…

…r of CPU's

Merge pull request TrafeX#42 from erseco/upstream-upgrade-alpine

Upgraded Alpine to 3.12

Merge pull request TrafeX#32 from erseco/patch-2

Enable gzip compression on nginx

Removed volume instruction

Upgraded to Alpine 3.11