A Dockerfile to proccess Apache Server-side Include and dump the fully rendered static files https://blog.narf.ssji.net/2023/04/24/render-apache-server-side-includes-docker/

ssi-extractor.Dockerfile

# usage:
#
#    docker build -t ssi-extractor - < Dockerfile
#    docker run -v ./www:/usr/local/apache2/htdocs/ -v ./out:/out ssi-extractor
FROM httpd:alpine

RUN apk update \
        && apk add wget

RUN sed -i \
        -e 's/#LoadModule include_module/LoadModule include_module/' \
        -e 's/#LoadModule negotiation_module/LoadModule negotiation_module/' \
        -e 's/Options Indexes FollowSymLinks/& Includes MultiViews/' \
        -e 's/#\(Add.*shtml\)/\1/' \
        -e 's/DirectoryIndex index.html/DirectoryIndex index.shtml/' \
        /usr/local/apache2/conf/httpd.conf \
        && rm /usr/local/apache2/htdocs/index.html

RUN mkdir /out \
        && echo '#!/bin/sh' > /cmd.sh \
        && echo 'httpd-foreground &' >> /cmd.sh \
        && echo 'sleep 3; cd /out; wget -rl 0 -nH -E --accept-regex "/[^.]*(.html)?$" http://localhost/' >> /cmd.sh \
        && chmod a+x /cmd.sh

CMD ["/cmd.sh"]