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# Base image to use for building documentation archives.
# This image uses "ONBUILD" to perform all required steps in the archives
# and relies upon its parent image having a layer called `builder`.
FROM nginx:alpine
# Make the version accessible to this build-stage, and copy it to an ENV so
# that it persists in the final image.
ONBUILD ARG VER
ONBUILD ENV VER=$VER
# Clean out any existing HTML files, and copy the HTML from the builder stage
# to the default location for Nginx.
ONBUILD RUN rm -rf /usr/share/nginx/html/*
ONBUILD COPY --from=builder /site /usr/share/nginx/html
# Copy the Nginx config
COPY dockerfiles/nginx-overrides.conf /etc/nginx/conf.d/default.conf
# Start Nginx to serve the archive at / (which will redirect to the version-specific dir)
CMD ["sh", "-c", "echo 'GitLab docs are viewable at: http://0.0.0.0:4000'; exec nginx -g 'daemon off;'"]
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