The article contains guidelines on how to configure custom components after deploying the Metric Insights application.
Add a Cron Job to the Cron Service
The Cron Service must be restarted after making any changes in  /opt/mi/external_config/crontab. 
- Enter the Web container using the commands below:
- For Simple Installation:
        docker exec -it <container_name> /bin/bash 
- For Kubernetes Deployment:
kubectl exec -it <pod id> -- /bin/bash
- For OpenShift 3 and OpenShift 4 Deployment:
oc exec -it <pod id> — /bin/bash
- For Docker Swarm and Amazon ECS Deployment: connect the server on which the required container is located and run docker exec -it <container id> /bin/bash
2. Navigate to /opt/mi/external_config/crontab  and add a cron job. 
3. Apply the changes by running:
 service cron restart