Automatically set DefaultRoute once, fixed kibana export check

data/Dockerfiles/parsedmarc-init/start.sh

@@ -1,4 +1,6 @@
 #!/bin/bash
+# Copyright 2020, Patrik Kernstock.
+
 set -x
 
 echo "## ELASTICSEARCH"
@@ -17,9 +19,10 @@ if [ ! -f "/etc/nginx/ssl/kibana.crt" ] || [ ! -f "/etc/nginx/ssl/kibana.key" ];
 fi
 
 echo "## KIBANA"
-if [ ! -f /etc/parsedmarc/kibana_export.ndjson ]; then
+exportFile="/etc/parsedmarc/kibana_export.ndjson"
+if [ ! -f "${exportFile}" ]; then
 	# trigger empty file to trigger below update logic.
-	touch /etc/parsedmarc/kibana_export.ndjson
+	touch ${exportFile}
 fi
 echo "Downloading dashboard from GitHub..."
 rm /etc/parsedmarc/kibana_export.ndjson.tmp
@@ -28,10 +31,10 @@ curl https://raw.githubusercontent.com/domainaware/parsedmarc/master/kibana/expo
 if [ ${?} -ne 0 ]; then
 	echo "Downloading kibana export failed."
 else
-	fileNew=$(wc -c "/etc/parsedmarc/kibana_export.ndjson.tmp") # always use quoted var
+	fileNew=$(wc -c "${exportFile}.tmp" | awk -F' ' '{ print $1 }')
-	fileOld=$(wc -c "/etc/parsedmarc/kibana_export.ndjson")
+	fileOld=$(wc -c "${exportFile}" | awk -F' ' '{ print $1 }')
 
-	if [ $fileNew -eq $fileOld ]; then
+	if [ "$fileNew" == "$fileOld" ]; then
 		echo "File size is the same. Not proceeding."
 	else
 		echo "File size is different... updating..."
@@ -43,20 +46,47 @@ else
 
 		echo "Kibana responded. Waiting 10s, then proceeding with dashboard update..."
 		sleep 10
-		rm /etc/parsedmarc/kibana_export.ndjson
+		rm ${exportFile}
-		mv /etc/parsedmarc/kibana_export.ndjson.tmp /etc/parsedmarc/kibana_export.ndjson
+		mv ${exportFile}.tmp ${exportFile}
 		RES=$(curl -X POST http://kibana:5601/api/saved_objects/_import?overwrite=true \
-			-H "kbn-xsrf: true" --form file=@/etc/parsedmarc/kibana_export.ndjson)
+			-H "kbn-xsrf: true" --form file=@${exportFile})
 		echo "Result: $RES"
 		if [ ${?} -ne 0 ]; then
 			echo "[!!!] Import might have failed. Manual check recommended."
+		else
+			# if the flag exists, we already set the defaultRoute once. So we don't do that again.
+			if [ ! -f "/etc/parsedmarc/flag.defaultRouteSet" ]; then
+				DEF_DASHBOARD_NAME="DMARC Summary"
+				echo "Setting '${DEF_DASHBOARD_NAME}' dashboard as default route..."
+				DEF_DASHBOARD_ID=$(cat "${exportFile}" | jq --arg DBNAME "${DEF_DASHBOARD_NAME}" 'select(.attributes.title == $DBNAME) | .id' | tr -d '"')
+				if [ "$DEF_DASHBOARD_ID" != "" ]; then
+					echo "Found dashboard ID: ${DEF_DASHBOARD_ID}"
+					DEFAULT_ROUTE="/app/kibana#/dashboard/${DEF_DASHBOARD_ID}"
+					echo "DefaultRoute being set to: ${DEFAULT_ROUTE}"
+					curl -X POST -H "kbn-xsrf: true" -H "Content-Type: application/json" \
+						"http://kibana:5601/api/kibana/settings/defaultRoute" \
+						-d "{\"value\": \"${DEFAULT_ROUTE}\"}"
+					if [ ${?} -ne 0 ]; then
+						echo "[!!!] Setting defaultRoute seems to gone wrong. Manual check recommended."
+					else
+						echo "DefaultRoute set."
+						echo "Notice: This might require a restart of Kibana to take effect. Not done automatically as part of this script."
+						echo -e "# This is a flag to remember which defaultRoute we set in the past:\n${DEFAULT_ROUTE}" \
+							> /etc/parsedmarc/flag.defaultRouteSet
+					fi
+				else
+					echo "[!] Default dashboard with name '${DEF_DASHBOARD_NAME}' could not be found."
+				fi
+			fi
 		fi
-		echo "Importing done."
+		echo "Dashboard import done."
 	fi
 fi
 
 sleep 3
+
 # Create empty file to let other containers know that we're ready.
 touch /ready
 sleep infinity # or while true; do sleep 86400; done
+
 exit 0