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Optimise the Docker file to minimise the number of layers and maximise the chances that changes will be in the last layers built.

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This commit is contained in:
Dave Page 2019-03-01 12:29:05 +00:00
parent f552519ed6
commit d8f9e3e87b
1 changed files with 29 additions and 35 deletions
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64
pkg/docker/Dockerfile
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@ -22,13 +22,12 @@ RUN yarn install --cache-folder ./ycache --verbose && \
FROM python:3.7-alpine3.9 as docs-builder
# Install only dependencies absolutely required for documentation building
RUN apk add --no-cache make
RUN pip install --no-cache-dir \
sphinx flask_security flask_paranoid python-dateutil flask_sqlalchemy \
flask_gravatar flask_migrate simplejson
RUN apk add --no-cache make && \
pip install --no-cache-dir sphinx flask_security flask_paranoid python-dateutil flask_sqlalchemy flask_gravatar flask_migrate simplejson
COPY ./pgadmin4/ /pgadmin4
# Build the docs
RUN LC_ALL=en_US.UTF-8 LANG=en_US.UTF-8 make -C /pgadmin4/docs/en_US -f Makefile.sphinx html
# Get the PG binaries
@ -41,37 +40,6 @@ FROM postgres:11-alpine as pg11-builder
# Then install backend, copy static files and set up entrypoint
FROM python:3.7-alpine3.9
RUN pip --no-cache-dir install gunicorn
RUN apk add --no-cache postfix postgresql-client postgresql-libs
WORKDIR /pgadmin4
ENV PYTHONPATH=/pgadmin4
# Install build-dependencies, build & install C extensions and purge deps in one RUN step
# so that deps do not increase the size of resulting image by remaining in layers
# NOTE: We're using PIP version 18.1 here because of this issue:
# https://github.com/pypa/pip/issues/6197
COPY ./pgadmin4/requirements.txt /pgadmin4
RUN set -ex && \
apk add --no-cache --virtual build-deps build-base postgresql-dev libffi-dev linux-headers && \
pip install --upgrade pip==18.1 && \
pip install --no-cache-dir -r requirements.txt && \
apk del --no-cache build-deps
COPY --from=node-builder /pgadmin4/web/pgadmin/static/js/generated/ /pgadmin4/pgadmin/static/js/generated/
COPY --from=docs-builder /pgadmin4/docs/en_US/_build/html/ /pgadmin4/docs/
COPY ./pgadmin4/web /pgadmin4
COPY ./run_pgadmin.py /pgadmin4
COPY ./config_distro.py /pgadmin4
RUN pip install --no-cache-dir -r requirements.txt
# Precompile and optimize python code to save time and space on startup
RUN python -O -m compileall /pgadmin4
COPY ./entrypoint.sh /entrypoint.sh
# Copy the PG binaries
COPY --from=pg94-builder /usr/local/bin/pg_dump /usr/local/pgsql-9.4/
COPY --from=pg94-builder /usr/local/bin/pg_dumpall /usr/local/pgsql-9.4/
@ -98,6 +66,32 @@ COPY --from=pg11-builder /usr/local/bin/pg_dumpall /usr/local/pgsql-11/
COPY --from=pg11-builder /usr/local/bin/pg_restore /usr/local/pgsql-11/
COPY --from=pg11-builder /usr/local/bin/psql /usr/local/pgsql-11/
WORKDIR /pgadmin4
ENV PYTHONPATH=/pgadmin4
#Copy in the docs and JS/CSS bundles
COPY --from=node-builder /pgadmin4/web/pgadmin/static/js/generated/ /pgadmin4/pgadmin/static/js/generated/
COPY --from=docs-builder /pgadmin4/docs/en_US/_build/html/ /pgadmin4/docs/
# Install build-dependencies, build & install C extensions and purge deps in one RUN step
# so that deps do not increase the size of resulting image by remaining in layers
COPY ./pgadmin4/requirements.txt /pgadmin4
RUN apk add --no-cache --virtual build-deps build-base postgresql-dev libffi-dev linux-headers && \
apk add postfix postgresql-client postgresql-libs && \
pip install --upgrade pip && \
pip install --no-cache-dir -r requirements.txt && \
pip install --no-cache-dir gunicorn && \
apk del --no-cache build-deps
# Copy the code
COPY ./pgadmin4/web /pgadmin4
COPY ./run_pgadmin.py /pgadmin4
COPY ./config_distro.py /pgadmin4
COPY ./entrypoint.sh /entrypoint.sh
# Precompile and optimize python code to save time and space on startup
RUN python -O -m compileall /pgadmin4
# Finish up
VOLUME /var/lib/pgadmin
EXPOSE 80 443