added files & variables for docker running

entrypoint.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+set -e
+
+if [ "${1:0:1}" = '-' ]; then
+    set -- telegraf "$@"
+fi
+
+# Check if the /usr/local/py/.credentials file exists
+if [ -f "/usr/local/py/.credentials" ]; then
+    # If the file exists, continue with the execution
+    echo "The freebox is registered, continuing the execution."
+else
+    # If the file doesn't exist, execute the command
+    echo "The Freebox isn't registered, registering. Please allow acces from your freebox's panel."
+    /usr/local/py/freebox-monit.py -r
+fi
+
+if [ $EUID -ne 0 ]; then
+    exec "$@"
+else
+
+    # Allow telegraf to send ICMP packets and bind to privileged ports
+    setcap cap_net_raw,cap_net_bind_service+ep /usr/bin/telegraf || echo "Failed to set additional capabilities on /usr/bin/telegraf"
+
+    exec setpriv --reuid telegraf --init-groups "$@"
+fi