Makes /vpn regular dir in container

Dockerfile

@@ -8,10 +8,9 @@ RUN apk --no-cache --no-progress upgrade && \
     rm -rf /tmp/*
 
 COPY openvpn.sh /usr/bin/
+COPY configs /vpn
 
 HEALTHCHECK --interval=60s --timeout=15s --start-period=120s \
              CMD curl -LSs 'https://api.ipify.org'
 
-VOLUME ["/vpn"]
-
-ENTRYPOINT ["/sbin/tini", "--", "/usr/bin/openvpn.sh"]
+ENTRYPOINT ["/sbin/tini", "--", "/vpn/start.sh"]

configs/configure.sh

@@ -0,0 +1,17 @@
+#!/bin/bash
+
+## put whatever is necessary to acquire / build .ovpn files into /vpn here
+
+echo $0
+
+[[ -L vpn.conf ]] && rm vpn.conf
+
+if [[ ! -e vpn.conf ]]; then
+    selected=$(find . -name '*.ovpn' | shuf | head -1)
+    if [[ ! -r $selected ]]; then
+        echo "Unable to read configuration file ($selected)"
+        exit 1
+    fi
+    echo "Selected $selected as configuration file"
+    ln -s $selected vpn.conf
+fi

configs/start.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+echo $0
+
+cd /vpn
+if [[ -x ./configure.sh ]]; then
+    ./configure.sh || exit 1
+fi
+exec /usr/bin/openvpn.sh