Configure Application Insights for Azure Function App (Terraform)

Question

using below snippet I can create application insights and function_app but I am not sure how to configure function-app to use the created application insights.

module "resource_group" {
  source      = "git::ssh://address"
  environment = "${var.environment}"
  application = "${var.application}"
  app_version = "${var.app_version}"
}

module "function_app" {
  source                            = "git::ssh://address"
  environment                       = "${var.environment}"
  application                       = "${var.application}"
  resource_group_name               = "${module.resource_group.name}"
  app_version                       = "${var.app_version}"
  app_service_plan_id               = "${module.app_service_plan.id}"
  storage_primary_connection_string = "${module.storage_account.primary_connection_string}"
}

resource "azurerm_application_insights" "application_insights" {
  name                = "${var.environment}-${var.application}-appInsights"
  location            = "${module.resource_group.location}"
  resource_group_name = "${module.resource_group.name}"
  application_type    = "Web"
}

but When I visit azure > function_app > Monitor, it still shows to configure application_insights.

any suggestion?

Worth noting, web in application_type = "Web" shouldn't be capitalized. — Tluther
– Tluther, Commented Dec 14, 2023 at 14:20

Ken W - Zero Networks · Accepted Answer · 2023-10-09 13:30:48Z

13

See sample here: https://www.olivercoding.com/2018-06-24-terraform/. You need to add the APPINSIGHTS_INSTRUMENTATIONKEY to the app_settings of your function app.

Update - 10/09/2023

Adding application_insights_connection_string and application_insights_key inside the site_config block is the new way. Terraform automatically sets up the app_settings map.

Credit: Rajesh Swarnkar

edited Oct 9, 2023 at 13:30

answered Dec 4, 2018 at 13:11

Ken W - Zero Networks

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5 Comments

Kamran Pervaiz Over a year ago

is there a document for app_settings?

Ken W - Zero Networks Over a year ago

Documentation for App_setting can be found here: terraform.io/docs/providers/azurerm/r/…

Kamran Pervaiz Over a year ago

just to udate on this answer casing matters and should be "APPINSIGHTS_INSTRUMENTATIONKEY"

Luke Duddridge Over a year ago

I think, this has changed, using 0.12.6 I now go app_settings =: ` app_settings = { "APPINSIGHTS_INSTRUMENTATIONKEY" = "${azurerm_application_insights.appInsight.instrumentation_key}" }`

RSW Over a year ago

Adding application_insights_connection_string and application_insights_key inside the site_config block is the new way. Terraform automatically sets up the app_settings map.

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