I am running a newly built discourse docker image on Google Compute Engine. I converted that to use https using letsencrypt following the walk through and I get an A+ rating from ssllabs. However the scripting agent I'm using doesn't support either of the two TLS 1.0 cipher suites enabled [TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA, TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA] and I'd like to add TLS-DHE-RSA-WITH-AES-256-CBC-SHA which is supported by the open source rebol3 fork ren-c.
I've modified my web.ssl.template.yml file from
ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:\
ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:\
ECDHE-RSA-AES256-SHA;
to
ssl_ciphers ECDHE-RSA-AES128-GCM-SHA256:ECDHE-RSA-AES256-GCM-SHA384:\
ECDHE-RSA-AES128-SHA256:ECDHE-RSA-AES128-SHA:ECDHE-RSA-AES256-SHA384:\
ECDHE-RSA-AES256-SHA:TLS-DHE-RSA-WITH-AES-256-CBC-SHA;
and rebuilt the app using
sudo ./launcher rebuild app
but this doesn't alter the cipher_suites available.
I'm now wondering if I have to alter the nginx.conf directly, wherever that is, instead of asking the discourse build script to do it ...