Cost estimate - OfficeDev/microsoft-teams-apps-company-communicator GitHub Wiki
Assumptions
The estimate below assumes:
- 1000 users in the tenant
- 1 message sent to all users each week (~5/month)
- Administrator opts to create a custom domain name and obtain an SSL certificate for the site.
- When purchased through Azure, this is typically ~$12 for a domain name, and $75/year for the SSL certificate.
- If you choose to use Azure Front Door, that adds a monthly cost of $46 (for 2 routing rules + minimal bandwidth consumption).
The template defaults to using Azure Front Door, to reduce the cost of trying out and experimenting with the template, rather than requiring you to get a custom domain outright. For instance, you can run your instance for a few days, then turn off the services, and only pay for your actual Azure usage when the services were on.
We ignore:
- Operations associated with app installations, as that happens only once per user/team
- Operations associated with the authors viewing the tab, given the assumption that they are sending only 5 messages/month.
- Executions associated with Prep or Send function, as the execution count is trivial to the calculations.
SKU recommendations
The recommended SKUs for a production environment are:
- App Service: Standard (S2)
- Service Bus: Basic
- Workspace-based Application Insights:
This Application Insights resource is sending its data to a Log Analytics workspace.
The log Analytics workspace offers Pay-as-you-go pricing tier as it offers flexible consumption pricing in which charged per GB of data ingested -
- Analytics Logs data ingestion - $2.30/GB of data ingested per month
- Basic Logs data ingestion - $0.50/GB of data ingested per month
Estimated load
Number of messages sent: 1000 users * 5 messages/month = 5000 messages
Data storage: 1 GB max
- Messages are on the order of KBs
Table data operations:
-
Prep function
- (3 read * 5000 messages) = 15000 reads
-
Send function
- (4 read * 5000 messages) = 20000 reads
- (1 write * 5000 messages) = 5000 writes
-
Data function
- Aggregating status: (1 read * 5000 messages) = 5000 reads
Service bus operations:
- ((1 write + 1 read) operations/sent message * 5000 messages) = 10000 operations
Azure Function:
For Gb-sec pricing calculation, please refer this formula. (Memory Size * Execution Time * Execution Count)/1024000. Min. memory size = 128 Mb. Min. execution time = 100 ms.
- Send function
- (1 invocation * 5000 messages) = 5000 invocations
- (128 Mb * 3000 * 5000 messages)/1024000 = 1875 Gb-sec
Estimated cost
IMPORTANT: This is only an estimate, based on the above usage assumptions. Your actual costs may vary (might be less) depending on the usage.
Prices were taken from the Azure Pricing Overview on June 14 2023, for the West US 2 region.
Use the Azure Pricing Calculator to model different service tiers and usage patterns.
| Resource | Tier | Load | Monthly price |
|---|---|---|---|
| Storage account (Table) | Standard_LRS | < 1GB data, 45000 operations | $0.045 + $0.01 = $0.05 |
| Storage account (Blob) | Standard_LRS | < 1GB data | $0.29 + $0.02 + $0.02 = $0.34 |
| Bot Channels Registration | F0 | N/A | Free |
| App Service Plan | S2 | 730 hours | $146.00 |
| App Service (Bot + Tab) | - | (charged to App Service Plan) | |
| Azure Function | Dedicated | 10000 executions | (free up to 1 million executions) |
| Service Bus | Basic | 10000 operations | $0.01 |
| Azure Front Door | Azure Front Door Classic | < 1GB data transfer, 2 routing rules | $0.50 + $0.01 + $43.65 = $44.16 |
| Log Analytics Workspace (App Insights) | - | < 1GB data ingested | $2.30 |
| Total | $192.86 |
Estimated load - 1M messages
Data storage: 3 GB max
- Messages are on the order of KBs
Number of messages sent: 1M messages
Table data operations:
-
Prep function
- (3 read/prep * 1M messages) = 3M reads
-
Send function
- (4 read * 1M messages) = 4M reads
- (1 write * 1M messages) = 1M writes
-
Data function
- Aggregating status: (1 read * 1M messages) = 1M reads
Service bus operations:
- ((1 write + 1 read) operations/sent message * 1M messages) = 2M operations
Azure Function:
For Gb-sec pricing calculation, please refer this formula. (Memory Size * Execution Time * Execution Count)/1024000. Min. memory size = 128 Mb. Min. execution time = 100 ms.
- Send function
- (1 invocation * 1M messages) = 1M invocations
- (128 Mb * 3000 * 1M messages)/1024000 = 375000 Gb-sec
Estimated cost - 1M messages
IMPORTANT: This is only an estimate, based on the above usage assumptions. Your actual costs may vary.
Prices were taken from the Azure Pricing Overview on June 14 2023, for the West US 2 region.
Use the Azure Pricing Calculator to model different service tiers and usage patterns.
| Resource | Tier | Load | Monthly price |
|---|---|---|---|
| Storage account (Table) | Standard_LRS | < 3GB data, 9M operations | $0.14 + $0.32 = $0.46 |
| Storage account (Blob) | Standard_LRS | < 1GB data | $0.29 + $0.02 + $0.02 = $0.34 |
| Bot Channels Registration | F0 | N/A | Free |
| App Service Plan | S2 | 730 hours | $146.00 |
| App Service (Bot + Tab) | - | (charged to App Service Plan) | |
| Azure Function | Dedicated | 1M executions | (free up to 1 million executions) |
| Service Bus | Basic | 2M executions | $0.10 |
| Azure Front Door | Azure Front Door Classic | < 3GB data transfer, 2 routing rules | $0.50 + $0.03 + $43.65 = $44.18 |
| Log Analytics Workspace (App Insights) | - | < 1GB data ingested | $2.30 |
| Total | $193.38 |
Estimated load - 2M messages
Number of messages sent: 2M messages
Data storage: 6 GB max
- Messages are on the order of KBs
Table data operations:
-
Prep function
- (3 read * 2M messages) = 6M reads
-
Send function
- (4 read * 2M messages) = 8M reads
- (1 write * 2M messages) = 2M writes
-
Data function
- Aggregating status: (1 read * 2M messages) = 2M reads
Service bus operations:
- ((1 write + 1 read) operations/sent message * 2M messages) = 4M operations
Azure Function:
For Gb-sec pricing calculation, please refer this formula. (Memory Size * Execution Time * Execution Count)/1024000. Min. memory size = 128 Mb. Min. execution time = 100 ms.
- Send function
- (1 invocation * 2M messages) = 2M invocations
- ( 128 Mb * 3000 * 2M messages)/1024000 = 750000 Gb-sec
Estimated cost - 2M messages
IMPORTANT: This is only an estimate, based on the above usage assumptions. Your actual costs may vary.
Prices were taken from the Azure Pricing Overview on June 14 2023, for the West US 2 region.
Use the Azure Pricing Calculator to model different service tiers and usage patterns.
| Resource | Tier | Load | Monthly price |
|---|---|---|---|
| Storage account (Table) | Standard_LRS | < 6GB data, 18M operations | $0.27 + $0.65 = $0.92 |
| Storage account (Blob) | Standard_LRS | < 1GB data | $0.29 + $0.02 + $0.02 = $0.34 |
| Bot Channels Registration | F0 | N/A | Free |
| App Service Plan | S2 | 730 hours | $146.00 |
| App Service (Bot + Tab) | - | (charged to App Service Plan) | |
| Azure Function | Dedicated | 2M executions | $5.80 |
| Service Bus | Basic | 2M executions | $0.10 |
| Azure Front Door | Azure Front Door Classic | < 3GB data transfer, 2 routing rules | $0.50 + $0.03 + $43.65 = $44.18 |
| Log Analytics Workspace (App Insights) | - | < 1GB data ingested | $2.30 |
| Total | $199.64 |