Error handling and custom error pages

app/app.py

@@ -46,7 +46,25 @@ def load_user(user_id):
 # Context processor injects current version and commit
 @app.context_processor
 def injectVerCommit():
-    return dict(currVersion=currVersion, currCommit=currCommit)
+    return dict(currVersion=currVersion, currCommit=currCommit, datetime=datetime, ZoneInfo=ZoneInfo)
+
+# Error handling
+# Pass env variables for debugging in prod
+NODE_NAME = os.environ['NODE_NAME']
+POD_NAME = os.environ['POD_NAME']
+
+# Error Routes
+@app.errorhandler(404)
+def notFound(e):
+    return render_template('errors/404.html', NODE_NAME=NODE_NAME, POD_NAME=POD_NAME), 404
+
+@app.errorhandler(403)
+def forbidden(e):
+    return render_template('errors/403.html', NODE_NAME=NODE_NAME, POD_NAME=POD_NAME), 403
+
+@app.errorhandler(500)
+def ISEerror(e):
+    return render_template('errors/500.html', NODE_NAME=NODE_NAME, POD_NAME=POD_NAME), 500
 
 # Index route
 @app.route('/')