Use 2023 docker image as base

Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:rolling
+FROM registry.gitlab.com/islandoftex/images/texlive
 
 LABEL "maintainer"="Hendrik Kleinwächter <hendrik.kleinwaechter@gmail.com>"
 LABEL "repository"="https://github.com/hendricius/the-sourdough-framework"
@@ -19,43 +19,8 @@ RUN apt-get update && \
     git \
     wget
 
-# Install base LaTeX system
-RUN apt-get install --yes -y --no-install-recommends \
-    texlive-full
-
-# Install LaTeX extras
-RUN apt-get install --yes -y --no-install-recommends \
-    latexmk \
-    lmodern \
-    fonts-lmodern \
-    tex-gyre \
-    texlive-pictures \
-    fonts-texgyre \
-    dvisvgm \
-    context \
-    python3-pygments \
-    python3-setuptools
-
-RUN apt-get install --yes -y --no-install-recommends \
-    biber \
-    texlive-bibtex-extra \
-    openjdk-21-jre-headless \
-    ghostscript \
-    graphviz
-
-RUN apt-get autoclean && apt-get --purge --yes autoremove
-
 WORKDIR /root
 
-# Latest make4ht and tex4ebook
-RUN git clone https://github.com/michal-h21/make4ht && \
-    cd make4ht && \
-    make justinstall
-
-RUN git clone https://github.com/michal-h21/tex4ebook.git && \
-    cd tex4ebook && git checkout v0.3i && \
-    make && make install
-
 # Support to build amazon kindle books
 RUN wget https://archive.org/download/kindlegen_linux_2_6_i386_v2_9/kindlegen_linux_2.6_i386_v2_9.tar.gz && \
     tar xzf kindlegen_linux_2.6_i386_v2_9.tar.gz && \

book/makefile

@@ -223,7 +223,7 @@ release_sans_serif: build_sans_serif_pdf build_sans_serif_ebook | make_release_d
 	cp epub/book_sans_serif.azw3 release/TheBreadCode-The-Sourdough-Framework-sans-serif.azw3
 
 .PHONY: website
-website: default
+website:
 	rm -rf $(WEBSITE_DIR)
 	make4ht -c website.cfg -a debug -uf html5+tidy+common_domfilters+dvisvgm_hashes -d $(WEBSITE_DIR) book.tex
 	mv $(WEBSITE_DIR)/book.html $(WEBSITE_DIR)/index.html

makefile

@@ -36,6 +36,10 @@ show_tools_version:
 printvars:
 	docker run -it -v $(PWD):/opt/repo $(DOCKER_IMAGE) /bin/bash -c "cd /opt/repo/book && make printvars"
 
+.PHONY: print_os_version
+print_os_version:
+	docker run -it -v $(PWD):/opt/repo $(DOCKER_IMAGE) /bin/bash -c "cat /etc/*release"
+
 .PHONY: start_shell
 start_shell:
 	docker run -it -v $(PWD):/opt/repo $(DOCKER_IMAGE) /bin/bash