Try from image

Dockerfile

@@ -1,4 +1,4 @@
-FROM ubuntu:16.04
+FROM cdrx/pyinstaller-windows
 
 COPY entrypoint.sh /entrypoint.sh
 RUN chmod +x /entrypoint.sh

entrypoint.sh

@@ -1 +1,46 @@
-docker run -v "$(pwd)/$1:/src/" cdrx/pyinstaller-windows
+#!/bin/bash
+
+# Fail on errors.
+set -e
+
+# Make sure .bashrc is sourced
+. /root/.bashrc
+
+# Allow the workdir to be set using an env var.
+# Useful for CI pipiles which use docker for their build steps
+# and don't allow that much flexibility to mount volumes
+SRCDIR=$1
+WORKDIR=${SRCDIR:-/src}
+
+#
+# In case the user specified a custom URL for PYPI, then use
+# that one, instead of the default one.
+#
+if [[ "$PYPI_URL" != "https://pypi.python.org/" ]] || \
+   [[ "$PYPI_INDEX_URL" != "https://pypi.python.org/simple" ]]; then
+    # the funky looking regexp just extracts the hostname, excluding port
+    # to be used as a trusted-host.
+    mkdir -p /wine/drive_c/users/root/pip
+    echo "[global]" > /wine/drive_c/users/root/pip/pip.ini
+    echo "index = $PYPI_URL" >> /wine/drive_c/users/root/pip/pip.ini
+    echo "index-url = $PYPI_INDEX_URL" >> /wine/drive_c/users/root/pip/pip.ini
+    echo "trusted-host = $(echo $PYPI_URL | perl -pe 's|^.*?://(.*?)(:.*?)?/.*$|$1|')" >> /wine/drive_c/users/root/pip/pip.ini
+
+    echo "Using custom pip.ini: "
+    cat /wine/drive_c/users/root/pip/pip.ini
+fi
+
+cd $WORKDIR
+
+if [ -f requirements.txt ]; then
+    pip install -r requirements.txt
+fi # [ -f requirements.txt ]
+
+echo "$@"
+
+if [[ "$@" == "" ]]; then
+    pyinstaller --clean -y --dist ./dist/windows --workpath /tmp *.spec
+    chown -R --reference=. ./dist/windows
+else
+    sh -c "$@"
+fi # [[ "$@" == "" ]]