Fix Dockerfile and create run script

build/Dockerfile

@@ -18,7 +18,7 @@ RUN apk add --no-cache ca-certificates wget \
     && make \
     && make install \
     # add vpn-slice with dependencies (dig) https://github.com/dlenski/vpn-slice
-    && apk add --no-cache python3 bind-tools && pip3 install --upgrade pip \
+    && apk add --no-cache python3 py3-pip bind-tools && pip3 install --upgrade pip \
     && pip3 install https://github.com/dlenski/vpn-slice/archive/master.zip \
     # always add the docker DNS server
     && grep -qxF 'nameserver 127.0.0.11' /etc/resolv.conf || echo 'nameserver 127.0.0.11' >> /etc/resolv.conf \

run.sh

@@ -0,0 +1,15 @@
+#!/usr/bin/env sh
+
+CONTAINER_TAG=openconnect_vpn
+
+docker build -t "$CONTAINER_TAG" build/
+
+docker run \
+  -it \
+  --privileged \
+  --cap-add NET_ADMIN \
+  -e OPENCONNECT_URL= \
+  -e OPENCONNECT_USER= \
+  -p 9000:8888 \
+  -p 9001:8889 \
+  "$CONTAINER_TAG"