add arg PIP_INDEX_URL to customize pip index url when build

Author: jouyouyun

Dockerfile

@@ -1,8 +1,8 @@
-# build: docker buildx build --platform linux/amd64 -f Dockerfile -t wzdnzd/aggregator:tag .
+# build: docker buildx build --platform linux/amd64 -f Dockerfile -t wzdnzd/aggregator:tag --build-arg PIP_INDEX_URL="https://pypi.tuna.tsinghua.edu.cn/simple" .
 
 FROM python:3.12.3-slim
 
-MAINTAINER wzdnzd
+LABEL maintainer="wzdnzd"
 
 # github personal access token
 ENV GIST_PAT=""
@@ -13,6 +13,9 @@ ENV GIST_LINK=""
 # customize airport listing url address
 ENV CUSTOMIZE_LINK=""
 
+# pip default index url
+ARG PIP_INDEX_URL="https://pypi.org/simple"
+
 WORKDIR /aggregator
 
 # copy files, only linux related files are needed
@@ -27,7 +30,7 @@ RUN rm -rf subconverter/subconverter-darwin-amd \
     && rm -rf subconverter/subconverter-windows.exe
 
 # install dependencies
-RUN pip install -i https://pypi.tuna.tsinghua.edu.cn/simple --no-cache-dir -r requirements.txt
+RUN pip install -i ${PIP_INDEX_URL} --no-cache-dir -r requirements.txt
 
 # start and run
-CMD ["python", "-u", "subscribe/collect.py", "--all", "--overwrite", "--skip"]
+CMD ["python", "-u", "subscribe/collect.py", "--all", "--overwrite", "--skip"]