Executing workflows on the cloud can be a little scary if you don't know how much you're spending. For peace of mind that you're not going over a project budget, read on for instructions to set up cost reporting for workflows.
To learn how to query Google directly, see How to retrieve the time and cost of a completed workflow.
Overview: Workflow cost reporting
To make cloud computing costs more transparent, you can have Terra display the cost for each executed workflow (including failed and aborted workflows) in the Job History page.
To access spend reporting, you'll need to configure spend reporting for your Terra Billing Project. Most users will also need to do a one-time setup on Google Cloud, to allow Terra access to Google's cost reports. A few things to keep in mind are below.
Built-in cost reports take a few hours to show up
Results from Terra's built-in cost report aren't available until some hours after the workflow has completed (this is a lag in reporting on the Google side). It's best to allow a day to pass before checking in on the cost.
Costs are only reported for completed workflows
The cost is a true cost, not an estimate. It is only available after the workflow is complete.
Reports cover the total job cost
It is not possible with built-in cost reporting to access task-level or instance-level costs (i.e. the cost of running a particular task within a workflow).
How accurate is the cost report? Terra's built-in cost reports come directly from Google. This is the actual cost for the given workflow (i.e. not an estimate). They are generated by accessing Google's billing repository, so they can take several hours to log.
For more granular costs or cost for workflows in progress, you could try running a cost-estimate notebook. See Cost-estimate notebook (deprecated). Note that this archived notebook is broken and no longer supported, however it could provide guidance for an alternate approach.
Before you start: Verify your permissions
Not able to follow these directions?You must have "Owner" permission of the Terra Billing Project and “Owner” or "Admin" permission on the Google Cloud Billing account. If you are not able to follow the directions below, or do not see the options in the screenshots (or they are greyed out), it is likely because you do not have sufficient permissions on the GCP Billing account. You will need to ask the owner for admin privileges on the Cloud Billing account or to set up a BigQuery dataset for billing export (follow directions below).
This may be the case, for example, if you are using a third-party resellers such as Onix.
1. Verify you are a Billing project Owner
Go to your billing page (app.terra.bio/#billing). If the billing project is listed in the Owned by you section, you're all set. If not, you can click on the Members tab to see who you would need to ask to get that permission.
2. Verify you are a Cloud billing account Owner or Admin
Go to billing in Google Cloud console (https://console.cloud.google.com/billing) and click on the Billing account link. 
If get an error message "You don’t have permission to view costs for this billing account", you will need to ask an owner to expand your role to be able to follow the directions below. 
What to do if you don't have Cloud billing account permission Click on the Billing account Manage link to the right and expand the Billing Account Administrator section to see who to ask.
If you use third-party resellers, contact your reseller directly for help.
Step 1. Set up Cloud account billing export (once)
If you are not using a Broad Institute Google Cloud Billing account, you will need to grant Terra access to cost reports on GCP console to enable the workflows spend reporting.
You will only need to do this once per Google Cloud Billing account.
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1.1. Navigate to the billing account management page in Google Cloud Console.
1.2. Click on the name of the billing account you would like to enable billing exports for. If you have more than one, you will need to repeat for each one associated with a Terra Billing Project.
1.3. Click on Billing export in the left sidebar.
1.4. Under Standard usage cost, click the Edit Settings button.
1.5. Next you will configure/create the BigQuery dataset to hold the exported billing data.
Requirements to set up the BigQuery billing export dataset The Billing project you select cannot be a Terra-generated workspace project. To check, make sure the ID in the dropdown is not of the format <Terra-Billing-project-name>--<workspace-name>. If the project name has that formatting, it was created by Terra and will not work for this step.
In that case, you will need to create a GCP-native project first. You can find step-by-step instructions here.If you don't have a project, Google will prompt you to create one.
What to do if you are unable to create a project in Google consoleIf you are unable to follow the instructions (especially if what's on your screen looks different than what's in these instructions), you most likely don't have the right permission.
What to do
If you are part of an organization, reach out to your Google Cloud Billing account admin or central organization. See instructions above for how to find the right person to ask. If you use a third-party reseller, reach out to the reseller to ask for help.1.6. Create the project (if you already have an existing non-Terra Google project, you may skip this step). We suggest using
daily_cost_detail_bq, but you can use any name that makes sense to you. Note that appending_bqto your project name will help you identify it later!
1.7. Select the Google project to host the billing export BigQuery dataset (cannot be a workspace project created by Terra - see 1.5 above).
1.8. From the dropdown menu, select (or create) the BigQuery dataset to store the billing export data.
If you don't already have a dataset in this Google project, Google will prompt you to create oneFrom the menu above (1.8), click on Create new dataset, fill in the form (screenshot below), and select the Create dataset button at the bottom.
1.9. Click Save.
1.10. In the BigQuery export tab, click on the dataset name.
1.11. From the dataset tab, copy the Google project ID (to the left of the period) and BigQuery dataset name (to the right of the period) to a safe place. You will need it to configure spend reporting in Terra (2.4 below).
Example Dataset ID (careful-griffin-360513.daily_cost_detail)
The format is
Google project ID.BigQuery dataset name(separated by a period)1.12. Go to the sharing dropdown above and to the right of the Dataset info and click Permissions.
If this option is greyed out, it is most likely because your role doesn't allow you to share the dataset. You will need to ask the owner of the Google Cloud Billing account to grant you permission to share a BigQuery dataset.
1.13. Select the Add principals button in the Dataset Permissions section.
1.4. Type
spend-reporting@terra.biointo the New Principals field (circled in screenshot below) and select BigQuery Data Viewer from the Role dropdown (arrow). This grants Terra permission to access the dataset you've just set up.
1.15. Click the Save button (at the bottom of the form).
Google BigQuery billing exports are now configured for this Cloud Billing account. You can confirm by expanding the menu under BigQuery Data Viewer (below).
The next step will be to configure workflow spend report in Terra.
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If you use a third-party reseller, you may need to ask them to set up the spend reporting (in GCP console) for you.
1. Create a BigQuery dataset
daily_cost_reportingfor exporting Google billing data.2. Share the
daily_cost_reportingdataset withspend-reporting@terra.bioas BigQuery Dataset Viewer.3. Give you the Google project ID of the dataset (to use in Step 2 below).
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Broad GCP Billing account users can skip this first step and go directly to Step 2: Configure the workflow spend report.
Before you move on to step 2If you just completed Step 1 we recommend you wait several hours to complete Step 2 in order for billable activity to be recorded in BigQuery or you may receive an error that the dataset cannot be found.
Step 2. Configure workflow spend reporting in Terra
Now that you have set up billing data export in Google Cloud, you will set up (configure) spend reporting in Terra. You will only need to do this once per Terra Billing project.
Do you have multiple billing projects?If you have workspaces in multiple billing projects that you want to set up with spend reporting, be sure to repeat the following steps for each billing project.
2.1. Go to the Billing page by first clicking your name and selecting Billing from the main navigation menu (top left of any page in Terra).
2.2. Select the Terra Billing project associated with the workspace where you're running your workflow analysis.
Note that you need to be an owner to follow these steps. You'll know you're the owner if you see the Terra billing project listed under Owned by You in the top left column. 
2.3. Click the pencil icon beside Workflow Spend Report Configuration to edit. 
2.4. Fill in the Dataset Project ID and Dataset Name from GCP console (step 1.11 for general users or step 1.9 for STRIDES - above) in the Configure Spend Reporting form.
Example Dataset ID (careful-griffin-360513.daily_cost_detail) from Google Cloud console
The format is Google project ID . BigQuery dataset name (separated by a period)
2.5. Click the OK button to save.
What to expect
You will not get a confirmation message, but as long as you don't get an error message, your configuration should be saved.
If you get an error that looks like this
Example error text
Error updating workflow spend report configuration The billing export table <name here> in dataset <dataset name> could not be found
Full error:
{
"causes": [],
"message": "The billing export table gcp_villing_export_v1_012061_174696_8A47BC in dataset
terra_daily_cost_details could not be found.",
"source": "rawls",
"stackTrace": [],
"statusCode": 400,
"timestamp": 1631824489662
}
This error occurs when there is currently no data in the dataset.
To remedy this, try the following
1. Run a small workflow in the workspace.
2. Wait 2-3 hours and follow steps 2.1 - 2.5 again.
How to find built-in workflow cost reporting
1. Navigate to the Job History page of the workspace.
This page includes all workflow submissions for the workspace
2. Click the submission of interest in the far left column.
3. If your spend reporting has been correctly set up, you will find the Total Run Cost at the top right corner. Note that the spend report can take up to 24 hours to appear in Terra, as GCP costs reports have some delay.
If your submission included more than one execution, each will be listed separately under "Run Cost"
