update run script

run_container.sh

@@ -1,11 +1,18 @@
 #!/bin/sh
 # runs the treebird image as a docker daemon
-instance=${1:-https://sleepy.cafe/}
-release=${2:-latest}
+instance=${1:-https://my.instance.domain/}
+docker_tag=${2:-treebird:latest}
+docker_user=${3:-treebird}
+
+# NOTE: if you don't have a user you should make one for security
+
+# IP and port to bind on (only use localhost 127.*.*.* for security reasons...)
+host_bind_addr="127.0.0.1:4008"
 
 docker run \
     --rm \
     --name treebird \
-    -p 4008:4008 \
+    -p "${host_bind_addr}:4008" \
+    -u "`id -u ${docker_user}`:`id -g ${docker_user}`" \
     -e TREEBIRD_CFG_INSTANCE_URL="${instance}" \
-    -d "treebird:${release}"
+    -d "${docker_tag}"