Multistage Dockerfile (#90)

* Multistage Dockerfile

* Fix final stage and improve image size + layer caching

Co-authored-by: Sascha Ißbrücker <sissbruecker@lyska.io>

Dockerfile

@@ -1,22 +1,52 @@
-FROM python:3.7-slim-stretch
-
-# Install packages required for uswgi
-RUN apt-get update
-RUN apt-get -y install build-essential
-RUN apt-get -y install mime-support
-
-# Install requirements and uwsgi server for running python web apps
+FROM node:current-alpine AS node-build
 WORKDIR /etc/linkding
-COPY requirements.prod.txt ./requirements.txt
-RUN pip install -U pip
-RUN pip install -Ur requirements.txt
-
-# Copy application
+# install build dependencies
+COPY package.json package-lock.json ./
+RUN npm install -g npm && \
+    npm install
+# compile JS components
 COPY . .
+RUN npm run build
 
+
+FROM python:3.9-slim AS python-base
+RUN apt-get update && apt-get -y install build-essential
+WORKDIR /etc/linkding
+
+
+FROM python-base AS python-build
+# install build dependencies
+COPY requirements.txt requirements.txt
+RUN pip install -U pip && pip install -Ur requirements.txt
+# run Django part of the build
+COPY --from=node-build /etc/linkding .
+RUN python manage.py compilescss && \
+    python manage.py collectstatic --ignore=*.scss && \
+    python manage.py compilescss --delete-files
+
+
+FROM python-base AS prod-deps
+COPY requirements.prod.txt ./requirements.txt
+RUN mkdir /opt/venv && \
+    python -m venv --upgrade-deps --copies /opt/venv && \
+    /opt/venv/bin/pip install --upgrade pip wheel && \
+    /opt/venv/bin/pip install -Ur requirements.txt
+
+
+FROM python:3.9-slim as final
+RUN apt-get update && apt-get -y install mime-support
+WORKDIR /etc/linkding
+# copy prod dependencies
+COPY --from=prod-deps /opt/venv /opt/venv
+# copy output from build stage
+COPY --from=python-build /etc/linkding/static static/
+# copy application code
+COPY . .
 # Expose uwsgi server at port 9090
 EXPOSE 9090
-
+# Activate virtual env
+ENV VIRTUAL_ENV /opt/venv
+ENV PATH /opt/venv/bin:$PATH
 # Run bootstrap logic
 RUN ["chmod", "+x", "./bootstrap.sh"]
 CMD ["./bootstrap.sh"]