tools: add script for building documentation inside containers

This adds a script for building a container and building the
documentation within that new container image.

The openSUSE instructions now require a --non-interactive flag otherwise
they fail to run. Sadly there doesn't seem to be a way to have this in
an environment variable à-la DEBIAN_FRONTEND=noninteractive, so we
simply do a sed on the scripts to add --non-interactive to the zypper
commands to avoid having those in the instructions provided to our
users.

Somehow tzdata package in Ubuntu doesn't respect
DEBIAN_FRONTEND=noninteractive hence why the timezone needs to be set by
hand.

(From yocto-docs rev: cefced592f1302fcb65afa9e0b1f9f5ff1570e93)

Signed-off-by: Quentin Schulz <quentin.schulz@cherry.de>
Reviewed-by: Antonin Godard <antonin.godard@bootlin.com>
Tested-by: Antonin Godard <antonin.godard@bootlin.com>
Signed-off-by: Antonin Godard <antonin.godard@bootlin.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

documentation/tools/Containerfile.apt

@@ -0,0 +1,26 @@
+ARG ARG_FROM=debian:12 # default value to avoid warning
+FROM $ARG_FROM
+
+ARG DOCS=ubuntu_docs.sh
+ARG DOCS_PDF=ubuntu_docs_pdf.sh
+
+ENV DEBIAN_FRONTEND=noninteractive
+ARG TZ=Europe/Vienna
+
+# relative to the location of the dockerfile
+COPY --chmod=777 ${DOCS} /temp/host_packages_docs.sh
+COPY --chmod=777 ${DOCS_PDF} /temp/host_packages_docs_pdf.sh
+
+RUN ln -fs "/usr/share/zoneinfo/$TZ" /etc/localtime \
+ && apt-get update \
+ && apt-get install -y sudo \
+ && yes | /temp/host_packages_docs.sh \
+ && yes | /temp/host_packages_docs_pdf.sh \
+ && apt-get --yes autoremove \
+ && apt-get clean \
+ && rm -rf /temp
+
+RUN git config --global --add safe.directory /docs
+
+ENTRYPOINT ["/usr/bin/env", "make", "-C", "documentation/"]
+CMD ["publish"]