Docker configuration

entrypoint.sh

@@ -0,0 +1,26 @@
+#!/usr/bin/env bash
+
+# Exit immediately if a command exits with a non-zero status
+set -e
+
+# If the CRON_SCHEDULE and DOCKCHECK_ARGS environment variables are set, create the crontab entry for the dockcheck user
+if [ -n "$CRON_SCHEDULE" ] && [ -n "$DOCKCHECK_ARGS" ]; then
+  # Write the environment variable content to a temporary file, ensuring a newline at the end
+  echo "$CRON_SCHEDULE" /app/dockcheck.sh "$DOCKCHECK_ARGS" > /app/crontab
+
+  # Support additional schedule variables
+  for schedule_var in "${!CRON_SCHEDULE_@}"; do
+    suffix="${schedule_var#CRON_SCHEDULE_}"
+    schedule_value="${!schedule_var}"
+    args_var="DOCKCHECK_ARGS_${suffix}"
+    args_value="${!args_var}"
+    echo "$schedule_value" /app/dockcheck.sh "$args_value" >> /app/crontab
+  done
+
+  echo "Crontab created."
+else
+  echo "No CRON_SCHEDULE or DOCKCHECK_ARGS environment variable(s) found. No crontab created."
+fi
+
+# Pass control to the CMD command specified in the Dockerfile
+exec "$@"