generate lightweight image

core/Dockerfile

@@ -1,10 +1,13 @@
-FROM alpine:3.14.0
+FROM python:3-alpine AS base
 LABEL MAINTAINER="heckyel@riseup.net"
 
+# Image to Build Dependencies
+FROM base AS builder
+
 ENV LANG C.UTF-8
 ENV LC_ALL C.UTF-8
 
-RUN apk add --no-cache musl-dev build-base gcc libffi-dev python3-dev patch git py3-pip tor curl
+RUN apk add --no-cache musl-dev build-base make gcc g++ libffi-dev git patch
 
 ARG APP_DIR="/srv/app"
 ARG YT_REPO="https://git.sr.ht/~heckyel/yt-local"
@@ -16,14 +19,24 @@ WORKDIR "$APP_DIR"
 
 RUN git clone --depth=1 "$YT_REPO" --branch "$YT_BRANCH" "$APP_DIR"
 RUN git show --oneline --no-patch
-RUN pip3 install -r requirements.txt
+RUN pip install --no-cache-dir --prefix=/install wheel gunicorn
+RUN pip install --no-cache-dir --prefix=/install -r requirements.txt
 
 COPY 0001.patch "$APP_DIR/0001.patch"
 RUN patch -Np1 -i "$APP_DIR/0001.patch"
 
 # clean
 RUN rm -f "$APP_DIR/0001.patch"
-RUN apk del build-base patch python3-dev
+
+# Runtime Environment Image
+FROM base
+
+WORKDIR /srv/app
+
+# Runtime Dependencies
+RUN apk --no-cache add tor curl
+COPY --from=builder /install /usr/local
+COPY --from=builder /srv/app /srv/app
 
 EXPOSE 8080
 

core/entrypoint.sh

@@ -79,4 +79,6 @@ fi
 
 /entrypoint-tor.sh "$@" &
 
-exec /usr/bin/python3 /srv/app/server.py
+cd /srv/app || exit
+
+exec gunicorn -b 0.0.0.0:8080 -w 4 server:site_dispatch