docker fix

tokenizer/Dockerfile

@@ -1,11 +1,19 @@
+# syntax=docker/dockerfile:1.7
+
 FROM quay.io/0voice/python:3.10-alpine
+
 WORKDIR /app
-ENV PORT 3002
 
-ADD ./tokenizer.py /app
-ADD ./requirements.txt /app
+ENV PORT=3002 \
+    PIP_INDEX_URL=https://pypi.tuna.tsinghua.edu.cn/simple \
+    PIP_TRUSTED_HOST=pypi.tuna.tsinghua.edu.cn
 
-RUN pip install -i  https://pypi.tuna.tsinghua.edu.cn/simple --trusted-host pypi.tuna.tsinghua.edu.cn  --upgrade pip
-RUN pip install --root-user-action=ignore -i https://pypi.tuna.tsinghua.edu.cn/simple --trusted-host pypi.tuna.tsinghua.edu.cn -r requirements.txt
+COPY requirements.txt ./
 
-CMD ["sh","-c","nuxt --port ${PORT} --module tokenizer.py --workers 2"]
+RUN --mount=type=cache,target=/root/.cache/pip \
+    python -m pip install --upgrade pip && \
+    python -m pip install --root-user-action=ignore -r requirements.txt
+
+COPY tokenizer.py ./
+
+CMD ["sh", "-c", "nuxt --port ${PORT} --module tokenizer.py --workers 2"]