Fixed Docker Vulnerability

+ Switched Base Image to Alpine
+ Simplified Docker Build
+ Added Alpine support to wgd.sh script.
+ Maintained Project Layout.

src/entrypoint.sh

@@ -0,0 +1,41 @@
+#!/bin/bash
+echo "Starting the WireGuard Dashboard Docker container."
+
+clean_up() {
+  # Cleaning out previous data such as the .pid file and starting the WireGuard Dashboard. Making sure to use the python venv.
+  echo "Looking for remains of previous instances..."
+  if [ -f "/opt/wireguarddashboard/app/src/gunicorn.pid" ]; then
+    echo "Found old .pid file, removing."
+    rm /opt/wireguarddashboard/app/src/gunicorn.pid
+  else
+    echo "No remains found, continuing."
+  fi
+}
+
+
+
+ensure_blocking() {
+  sleep 1s
+  echo "Ensuring container continuation."
+
+  # This function checks if the latest error log is created and tails it for docker logs uses.
+  if find "/home/app/wireguarddashboard/app/log" -mindepth 1 -maxdepth 1 -type f | read -r; then
+    latestErrLog=$(find /home/app/wireguarddashboard/app/log -name "error_*.log" | head -n 1)
+    latestAccLog=$(find /home/app/wireguarddashboard/app/log -name "access_*.log" | head -n 1)
+    tail -f "${latestErrLog}" "${latestAccLog}"
+  fi
+
+  # Blocking command in case of erroring. So the container does not quit.
+  sleep infinity
+}
+
+# Execute functions for the WireGuard Dashboard services, then set the environment variables
+clean_up
+
+chmod u+x /home/app/wgd.sh
+if [ ! -f "/home/app/wg-dashboard.ini" ]; then
+  /home/app/wgd.sh install
+  
+fi
+/home/app/wgd.sh start
+ensure_blocking