4. Feature Set-upΒΆ To use certain features in Ngenea Hub, additional set-up is required as described in this section. 4.1. Search 4.1.1. Requirements 4.1.2. Configuration Steps 4.1.2.1. Choose Your Search Backend 4.1.2.2. Set the Elasticsearch URL 4.1.3. Using the Search Feature 4.2. Cloud Functions 4.2.1. GCP Cloud Function 4.2.2. AWS Lambda Function 4.2.2.1. Create an IAM Policy and Role 4.2.2.2. Create the Lambda function 4.2.2.3. Set Up the Trigger (S3 Bucket Event) 4.2.2.4. Configuring Timeout 4.2.2.5. Monitoring Lambda Functions 4.2.2.6. AWS Lambda with Python 3.9: Adding Requests Module 4.2.3. Software 4.2.4. Configuration 4.2.4.1. version 4.2.4.2. hub_access 4.2.4.3. Sites 4.2.4.4. Actions 4.2.4.5. optional 4.2.4.6. vendor 4.2.4.7. vendors 4.2.4.8. Complete Example 4.3. Disaster Recovery / Cold Failover 4.3.1. Setup 4.3.1.1. Configure datastore 4.3.1.2. Configure Networking 4.3.1.3. Install Ngenea Hub 4.3.2. Performing failover 4.3.3. Migration from local datastore 4.4. Installing SSL Certificates 4.5. Queues 4.5.1. Configuration 4.5.2. Functions 4.5.2.1. Disabling Functions 4.5.3. Queue discovery 4.5.4. Queue removal 4.5.5. Memory considerations 4.5.6. Workflows