Azure Databricks
Cluster policy for auto termination
Keep it as minimal as possible.
By default, when the cluster is created, auto termination time is 120 minutes. It should be kept as minimum as possible to reduce the cost(ex. 20 minutes).
Use of spot instance
Reference Link: https://databricks.com/blog/2021/05/25/leverage-unused-compute-capacity-for-data-ai-with-azure-spot-instances-and-azure-databricks.html
Worker type
Choose correct driver & work type based on your workload to reduce the cost of the Data bricks cluster.
It is recommended to use General Purpose worker type.
Data bricks job cluster instead of interactive cluster in Data Factory
Advantage of job cluster is that cluster will be auto started and terminated when the data bricks activity will be triggered from the data factory. We can avoid additional cost of configuring job clusters instead of interactive cluster as it will be running idle based on the auto termination configuration.
Data Factory
Remove inactive pipelines
Team creates many data factory pipelines during the development. If those pipelines are scheduled then we are paying unnecessary costs for those pipeline execution. Inactive pipelines should be removed when they are not in use.
Disable triggers in lower environments
A pipeline is considered inactive if it has no associated trigger or any runs within the month. If not required then triggers should be disabled.
Azure Virtual Machines
Enable Auto shutdown feature to reduce the cost of VM running after business hours and during the weekend.
Azure PostgreSQL
Performance configurations should be kept as minimal as possible
General Purpose, 4 vCore(s), 100 GB. Changing these configuration can reduce the cost of PostgreSQL drastically.
Azure SQL DB
Azure SQL DB DTU should be as low as possible to reduce the cost based on your workload.
App Services
App service with Linux is more cheaper
Cost of App service configured with Linux OS is much cheaper compared to windows OS. When possible try to use App service with Linux OS.
Standard Tier is recommended
Based on your workload, it is also recommended to configure app service with least minimal tier configuration is possible. It is recommended to use standard tier with App Service.
Azure Cosmos DB
Cosmos db request units should be as low as possible
Request units for cosmos db should be configured as low as possible. We can reduce a significant amount of cost by keeping the cosmos db request units as low as possible.
Enable Auto Decrease/Increase RU for cosmos DB
In order to optimize the cost of cosmos db request units, it is recommended to determine and increase/decrease cosmos db request units dynamically to increase the cost savings while working with Azure Cosmos db.
Define Budget for each resource & set threshold
In order to proactively monitor the resource costs, it is recommended to determine the threshold for each resource group and configure cost budget alerts to take proactive actions to reduce the cost.