fix docker image

Dockerfile

@@ -1,18 +1,5 @@
-FROM nikolaik/python-nodejs:python3.10-nodejs17-alpine as base
-
-# build python dependencies
-FROM base as python-build
-WORKDIR /install
-ENV PYTHONUNBUFFERED 1
-RUN apk update &&\
-    apk add musl-dev build-base gcc libffi-dev libressl-dev postgresql-dev mariadb-dev cargo &&\
-    rm -rf /var/cache/apk/*
-COPY app/backend/requirements.txt .
-RUN python -m pip install --no-cache-dir --upgrade pip &&\
-    pip install --prefix=/install --no-cache-dir -r requirements.txt
-
 # build svelte app
-FROM base as npm-build
+FROM node:17-alpine as npm-build
 WORKDIR /install
 COPY app/frontend/package*.json ./
 RUN npm install
@@ -21,15 +8,19 @@ COPY app/frontend/public ./public
 COPY app/frontend/rollup.config.js ./
 RUN npm run build
 
-# build final image
-FROM base
+# build python dependencies
+FROM python:3.10-alpine
+ENV PYTHONUNBUFFERED 1
 WORKDIR /app
-COPY --from=python-build /install /usr/local
+RUN apk update &&\
+    apk add musl-dev build-base gcc libffi-dev libressl-dev postgresql-dev mariadb-dev nodejs npm iputils nmap curl bash &&\
+    rm -rf /var/cache/apk/*
+COPY app/backend/requirements.txt .
+RUN python -m pip install --no-cache-dir --upgrade pip &&\
+    pip install --no-cache-dir -r requirements.txt &&\
+    apk del build-base gcc libffi-dev libressl-dev postgresql-dev
 COPY app/backend ./backend
 COPY --from=npm-build /install ./frontend
 COPY app/run.sh ./
-RUN apk update &&\
-    apk add iputils nmap curl bash mariadb-dev &&\
-    rm -rf /var/cache/apk/*
 
 CMD ["./run.sh"]