Finish a working example.

Config/ReverseProxy/Dockerfile

@@ -1,10 +1,16 @@
 # 2022-10-05 Hyperling
-# Move config to nginx container.
-# This is because nginx image does not play well with Volumes.
-# Nextcloud and MariaDB created files in their folders fine, but nginx stays empty.
+# Create the nginx environment for a reverse proxy.
+# https://docs.docker.com/engine/reference/builder/
 
 FROM nginx
 
+# Add all the configuration files to the environment.
 COPY ./config/nginx.conf /etc/nginx/nginx.conf
-
 COPY ./config/conf.d/* /etc/nginx/conf.d/
+
+# Create "working" certificates for the example configuration file.
+RUN mkdir -p /etc/nginx/certs/example.com
+RUN openssl req -new -x509 -days 5000 -nodes \
+		-out /etc/nginx/certs/example.com/cert.crt \
+		-keyout /etc/nginx/certs/example.com/cert.key \
+		-subj '/CN=example.com/O=Example/C=XX'