diff --git a/container/Dockerfile b/container/Dockerfile
index d71f602..ee1262d 100644
--- a/container/Dockerfile
+++ b/container/Dockerfile
@@ -4,4 +4,6 @@ FROM python:3.12-slim@sha256:740d94a19218c8dd584b92f804b1158f85b0d241e5215ea26ed
 ADD . .
 RUN python -m pip install --no-cache-dir .
 
+COPY ./container/liveness.bash .
+
 CMD run-detection
\ No newline at end of file
diff --git a/container/liveness.bash b/container/liveness.bash
new file mode 100755
index 0000000..8b66caa
--- /dev/null
+++ b/container/liveness.bash
@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+
+# Check for heartbeat file
+CURRENT_TIME=$(date +%s)
+FILE_TIME=$(date -r /tmp/heartbeat +%s)
+DIFF=$((CURRENT_TIME - FILE_TIME))
+if [ $DIFF -lt 20 ]; then
+  exit 0
+else
+  exit 1
+fi
+
+# Test for a readable file the archive
+FILE_LIST="/archive/NDXLOQ/Instrument/data/cycle_24_3/LOQ00110782.nxs /archive/NDXOSIRIS/Instrument/data/cycle_24_3/OSIRIS00149339.nxs /archive/NDXTOSCA/Instrument/data/cycle_24_3/TSC30650.nxs /archive/NDXMARI/Instrument/data/cycle_23_4/MAR29177.nxs"
+for file in $FILE_LIST; do
+  if ! [ -r "$file" ]; then
+    exit 1
+  fi
+done
+
+# All checks previously passed
+exit 0
\ No newline at end of file