feat: use OpenResty image instead of NGINX

* OpenResty = NGINX + LuaJIT + ngx_lua_module
* base for Redis integration with NGINX
* https://openresty.org/en/

docs/guides/migrations.md

@@ -9,6 +9,10 @@ kb_sync_latest_only
 
 ## From 4.2 to 5.0
 
+For the optional usage of a shared Redis cache we switched from the plain standard NGINX Docker image to an [OpenResty](https://openresty.org/en/) Docker image that provides more flexibility to configure the underlying NGINX.
+If the NGINX container was customized in the project it has to be checked if those customizations work in the same way with the OpenResty image.
+Without any customizations the switch should not be noticeable and does not require any adaptions.
+
 We renamed the input parameter 'id' to 'productListingId' for the product listing component to avoid unintentionally having more than one element with the same id in the HTML document.
 The api-token.service has been refactored and the class variables `apiToken$` and `cookieVanishes$` have got the private modifier.
 Use the public getter/setter methods to access these variables outside the class.

nginx/Dockerfile

@@ -1,4 +1,11 @@
-FROM nginx:1.22
+FROM openresty/openresty:1.21.4.3-1-jammy
+COPY --from=nginx:mainline /docker-entrypoint.sh /
+COPY --from=nginx:mainline /docker-entrypoint.d/*.sh /docker-entrypoint.d/
+RUN cp /usr/local/openresty/nginx/conf/mime.types /etc/nginx/mime.types \
+  && useradd -Ms /bin/false nginx
+ENTRYPOINT ["/docker-entrypoint.sh"]
+CMD ["nginx", "-c", "/etc/nginx/nginx.conf", "-g", "daemon off;"]
+
 RUN apt-get update \
   && apt-get install --no-install-recommends --no-install-suggests -y apache2-utils libnss3-tools
 COPY nginx.conf /etc/nginx/nginx.conf