Init

Dockerfile

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+FROM nginx:mainline-alpine
+
+# Install hugo
+RUN apk add hugo git
+
+# Copy over auxiliary scripts
+COPY aux /aux
+
+# Cron hook for pulling and building
+RUN echo "10 * * * * /aux/pull-n-build.sh" >> /var/spool/cron/crontabs/root
+
+# bootstrap script, basically cron && build
+# after that, the base-image-specific CMD will kick in, which is quite complex
+ENTRYPOINT /aux/bootstrap.sh
+

README.md

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+# blogker
+
+A nginx-powered container hosting a hugo-built blog regularly pulled off git.
+
+## Run
+
+`docker run -e REPO_URL=https://git.maride.cc/maride/sec.maride.cc.git -p 80:80 blogker`
+

aux/bootstrap.sh

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+#!/bin/sh
+
+# stop on error
+set -e
+
+# start cron daemon (goes into background)
+crond
+
+# pull and build freshly
+/aux/pull-n-build.sh
+
+# run nginx
+nginx -g "daemon off;"

aux/pull-n-build.sh

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+#!/bin/sh
+
+# stop on error
+set -e -v
+
+# check if initial git run
+if [ ! -d /repo ]; then
+	# yes - repo needs to be cloned
+	git clone --recurse-submodules $REPO_URL /repo
+else
+	# no - pull existing repo
+	cd /repo && git pull --recurse-submodules
+fi
+
+# build and copy over
+cd /repo && \
+hugo && \
+rm -rf /usr/share/nginx/html/* && \
+cp -R /repo/public/* /usr/share/nginx/html
+