Since Piku by default uses nginx, it's actually super simple to serve the same website under multiple domains. A common usecase for that is serving the same website under example.com and
www.example.com. There's only one small gotcha with Let's Encrypt certificates.
The
NGINX_SERVER_NAME env var in the
ENV file is actually a space separated list, piku's scripts split the list up and handle everything for multiple domains, so all you need to do is list all of them in like so:
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NGINX_SERVER_NAME=example.com www.example.com
Let's Encrypt even supports a certificate generated for multiple domains, the only catch is that piku doesn't handle it very well if you have a site already up and add a new domain. It'll just look at the first domain, see that the cert already exists and is valid and skips generating a new one that's valid for both/more domains. The workaround there is to put the new domain in the
ENV file var first. For example, if this was your original ENV file
Put the new domain first, not last
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NGINX_SERVER_NAME=www.example.com example.com
That will make piku generate a new certificate that is actually valid for both domains.
