Short Answer: No, You can’t
Long answer: You can search this forum and find people complaining about their install attempts either failing instantly or failing at a later date.
Both, apache2 and CentOS are not good choice of running discourse with.
I wouldn’t say it won’t work, but, it won’t work out of the box and would require a good understanding of discourse, cpanel, apache2 and proxies. Plus, it will require some thought to how you plan on restoring/preserving the configuration in case cpanel or apache decide to override it due to some other changes you do.