update nginx config at every startup (to account for hotswap of keys)

Dockerfile

@@ -6,7 +6,7 @@ RUN apk add --no-cache \
         tor
 
 COPY torrc /etc/tor/torrc
-COPY nginx.conf /etc/nginx/nginx.conf
+COPY nginx.conf /etc/nginx/nginx.conf.tmpl
 COPY entrypoint.sh /entrypoint.sh
 
 ENTRYPOINT ["/entrypoint.sh"]

entrypoint.sh

@@ -4,10 +4,9 @@ su-exec tor tor -f /etc/tor/torrc
 tor_domain=$(cat /var/lib/tor/hidden-service/hostname)
 main_domain=$(echo $MAIN_DOMAIN|sed 's/\./\\\./')
 
-sed -i \
-    -e "s/@@TOR_DOMAIN@@/$tor_domain/g" \
+sed -e "s/@@TOR_DOMAIN@@/$tor_domain/g" \
     -e "s/@@MAIN_DOMAIN@@/$main_domain/g" \
-    /etc/nginx/nginx.conf
+    /etc/nginx/nginx.conf.tmpl > /etc/nginx/nginx.conf
 
 echo $tor_domain