Add basic monitoring script

1 files changed, 20 insertions, 0 deletions

diff --git a/monitor.sh b/monitor.sh
new file mode 100755
index 0000000..6bf4236
--- /dev/null
+++ b/monitor.sh
@@ -0,0 +1,20 @@
+#!/usr/bin/env sh
+
+if [ -z ${HOOK_SCRIPT+x} ]; then
+    echo "Missing HOOK_SCRIPT environment variable, set it to the script to run upon file changes";
+    exit 1;
+else
+    if ! test -f $HOOK_SCRIPT; then
+        echo "The file pointed to by HOOK_SCRIPT does not exist, check your container mounts.";
+        exit 1;
+    fi;
+
+    if ! test -x $HOOK_SCRIPT; then
+        echo "HOOK_SCRIPT is not an executable file (missing +x bit), check file permissions of the hook script."
+        exit 1;
+    fi;
+fi
+
+while inotifywait -r /opt/monitor; do
+    $HOOK_SCRIPT
+done;