Dockerized from-source Ghost CMS (experimental)

Dockerfile

# https://docs.ghost.org/faq/node-versions/
# https://github.com/nodejs/Release (looking for "LTS")
# https://github.com/TryGhost/Ghost/blob/v4.1.2/package.json#L38
FROM node:14-alpine3.13

# grab su-exec for easy step-down from root
RUN apk add --no-cache 'su-exec>=0.2'

RUN apk add --no-cache git openssh python3 make; \
	ln -sf python3 /usr/bin/python

RUN apk add --no-cache --virtual .build-deps g++ gcc libc-dev make python3 vips-dev;

RUN apk add --no-cache \
# add "bash" for "[["
		bash
	
#RUN set -eux; \
#	yarn global add knex-migrator ember-cli; 

ENV GHOST_INSTALL /var/lib/ghost
ENV GHOST_CONTENT /var/lib/ghost/content

ENV GHOST_VERSION 4.2.1
ENV GHOST_CLI_VERSION 1.16.3

ENV NODE_ENV production

WORKDIR /root

COPY github.rsa .

RUN mkdir -p "$GHOST_INSTALL"; \
        chown node:node "$GHOST_INSTALL"

RUN chmod 400 github.rsa ; \
	eval $(ssh-agent) ; \
        ssh-add github.rsa ; \
        ssh-keyscan -H github.com >> /etc/ssh/ssh_known_hosts ; \
	git clone --recursive --depth 1 --branch v$GHOST_VERSION git@github.com:kincsescsaba/GhostCustom.git $GHOST_INSTALL

WORKDIR $GHOST_INSTALL

RUN sqlite3Version="$(node -p 'require("./package.json").optionalDependencies.sqlite3')"; \
        if ! su-exec node npm install "sqlite3@$sqlite3Version"; then \
                npm_config_python='python3' su-exec node npm install "sqlite3@$sqlite3Version"; \
        fi

RUN chmod -R 777 /usr/local/lib/node_modules ; \
	chmod -R 777 /usr/local/bin ; \
	chmod -R 777 $GHOST_INSTALL ; \
	rm config.development.json ; \
	ln -s core/shared/config/env/config.development.json config.development.json ; \
	ln -s core/shared/config/env/config.development.json config.production.json 

RUN su-exec node npm install -g matchdep knex-migrator ember-cli ; \
	su-exec node npm install -g grunt ; \
	su-exec node npm install --dev ; \ 
	su-exec node grunt knex-migrator ; \
	su-exec node grunt symlink ; \
	su-exec node grunt init ; \
	su-exec DEBUG=ghost:* ; \ 
	su-exec node npm cache clean --force; \
	npm cache clean --force

COPY docker-entrypoint.sh /usr/local/bin
ENTRYPOINT ["docker-entrypoint.sh"]

EXPOSE 2368
CMD ["node", "index.js"]