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martincostello merged 5 commits into from
Aug 28, 2026
Merged

[Resources.Azure] Update Azure attribute values #5143

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5f639a5
[Resources.Azure] Update Azure attribute values
martincostello Aug 28, 2026
18a6c0a
[Resources.Azure] Update CHANGELOG
martincostello Aug 28, 2026
5ba67be
[Resources.Azure] Fix typo
martincostello Aug 28, 2026
e82f176
[Resources.Azure] Address feedback
martincostello Aug 28, 2026
e7fb2e0
Merge branch 'main' into fix-azure-semconv
martincostello Aug 28, 2026
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7 changes: 7 additions & 0 deletions src/OpenTelemetry.Resources.Azure/CHANGELOG.md
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Expand Up @@ -6,6 +6,13 @@
App Service resource detector.
([#5138](https://github.com/open-telemetry/opentelemetry-dotnet-contrib/pull/5138))

* Updated the following values for the `cloud.platform` attribute to
comply with v1.43.0 of the OpenTelemetry Semantic Conventions:
* `azure_app_service` to `azure.app_service`
* `azure_container_apps` to `azure.container_apps`
* `azure_vm` to `azure.vm`
([#5143](https://github.com/open-telemetry/opentelemetry-dotnet-contrib/pull/5143))

## 1.18.0-beta.1

Released 2026-Aug-21
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6 changes: 3 additions & 3 deletions src/OpenTelemetry.Resources.Azure/README.md
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Expand Up @@ -53,7 +53,7 @@ using var loggerFactory = LoggerFactory.Create(builder =>
| azure.app.service.stamp | The specific "stamp" cluster within Azure where the App Service is running, e.g., "waws-prod-sn1-001". |
| azure.resource_group.name | The Azure resource group from `WEBSITE_RESOURCE_GROUP`. Emitted when the environment variable is non-empty. |
| cloud.account.id | The Azure subscription ID parsed from `WEBSITE_OWNER_NAME`. Emitted when the environment variable is non-empty. |
| cloud.platform | The cloud platform. Here, it's always "azure_app_service". |
| cloud.platform | The cloud platform. Here, it's always "azure.app_service". |
| cloud.provider | The cloud service provider. In this context, it's always "azure". |
| cloud.resource_id | The Azure Resource Manager URI uniquely identifying the Azure App Service. Typically in the format "/subscriptions/{subscriptionId}/resourceGroups/{groupName}/providers/Microsoft.Web/sites/{siteName}". |
| cloud.region | The Azure region where the App Service is hosted, e.g., "East US", "West Europe", etc. |
Expand Down Expand Up @@ -86,7 +86,7 @@ using var meterProvider = Sdk.CreateMeterProviderBuilder()
| Attribute | Description |
| ---------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| azure.vm.scaleset.name | The name of the Virtual Machine Scale Set if the VM is part of one. |
| cloud.platform | The cloud platform, which is always set to "azure_vm" in this context. |
| cloud.platform | The cloud platform, which is always set to "azure.vm" in this context. |
| cloud.provider | The cloud service provider, which is always set to "azure" in this context. |
| cloud.region | The Azure region where the Virtual Machine is hosted, such as "East US", "West Europe", etc. |
| cloud.resource_id | The Azure Resource Manager URI uniquely identifying the Azure Virtual Machine. It typically follows this format: "/subscriptions/{subscriptionId}/resourceGroups/{groupName}/providers/Microsoft.Compute/virtualMachines/{vmName}". |
Expand Down Expand Up @@ -120,7 +120,7 @@ using var meterProvider = Sdk.CreateMeterProviderBuilder()

| Attribute | Description |
| ------------------- | --------------------------------------------------------------------------------------------------------------------------- |
| cloud.platform | The cloud platform. Here, it's always "azure_container_apps". |
| cloud.platform | The cloud platform. Here, it's always "azure.container_apps". |
| cloud.provider | The cloud service provider. In this context, it's always "azure". |
| service.instance.id | Represents the specific instance ID of Azure Container Apps, useful in scaled-out configurations. |
| service.name | The name of the Azure Container Apps or Azure Container Apps job. |
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6 changes: 3 additions & 3 deletions src/OpenTelemetry.Resources.Azure/ResourceAttributeConstants.cs
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Expand Up @@ -32,8 +32,8 @@ internal sealed class ResourceAttributeConstants
internal const string AzureContainerAppJobExecutionNameEnvVar = "CONTAINER_APP_JOB_EXECUTION_NAME";

// Azure resource attributes constant values
internal const string AzureAppServicePlatformValue = "azure_app_service";
internal const string AzureAppServicePlatformValue = "azure.app_service";
internal const string AzureCloudProviderValue = "azure";
internal const string AzureVmCloudPlatformValue = "azure_vm";
internal const string AzureContainerAppsPlatformValue = "azure_container_apps";
internal const string AzureVmCloudPlatformValue = "azure.vm";
internal const string AzureContainerAppsPlatformValue = "azure.container_apps";
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}
5 changes: 4 additions & 1 deletion test/OpenTelemetry.Resources.Azure.Tests/AzureResourceDetectorTests.cs
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Expand Up @@ -108,6 +108,7 @@ public void AppServiceResourceDetectorReturnsResourceWithAttributes()
Assert.Contains(new KeyValuePair<string, object>(ResourceSemanticConventions.AttributeCloudResourceId, expectedResourceUri), resource.Attributes);
Assert.Contains(new KeyValuePair<string, object>(ResourceAttributeConstants.AzureResourceGroupName, "testResourceGroup"), resource.Attributes);
Assert.Contains(new KeyValuePair<string, object>(ResourceSemanticConventions.AttributeServiceName, "sitename"), resource.Attributes);
Assert.Contains(new KeyValuePair<string, object>(ResourceSemanticConventions.AttributeCloudPlatform, "azure.app_service"), resource.Attributes);

foreach (var kvp in AppServiceResourceDetector.AppServiceResourceAttributes)
{
Expand Down Expand Up @@ -183,7 +184,7 @@ public void TestAzureVmResourceDetector()
var expectedValue = field switch
{
ResourceSemanticConventions.AttributeServiceInstance => new KeyValuePair<string, object>(field, ResourceSemanticConventions.AttributeHostId),
ResourceSemanticConventions.AttributeCloudPlatform => new KeyValuePair<string, object>(field, ResourceAttributeConstants.AzureVmCloudPlatformValue),
ResourceSemanticConventions.AttributeCloudPlatform => new KeyValuePair<string, object>(field, "azure.vm"),
ResourceSemanticConventions.AttributeCloudProvider => new KeyValuePair<string, object>(field, ResourceAttributeConstants.AzureCloudProviderValue),
_ => new KeyValuePair<string, object>(field, field),
};
Expand Down Expand Up @@ -222,6 +223,7 @@ public void AzureContainerAppsResourceDetectorReturnsResourceWithAttributes()
Assert.StartsWith("https://opentelemetry.io/schemas/", resource.SchemaUrl);

Assert.Contains(new KeyValuePair<string, object>(ResourceSemanticConventions.AttributeServiceName, "containerAppName"), resource.Attributes);
Assert.Contains(new KeyValuePair<string, object>(ResourceSemanticConventions.AttributeCloudPlatform, "azure.container_apps"), resource.Attributes);

foreach (var kvp in AzureContainerAppsResourceDetector.AzureContainerAppResourceAttributes)
{
Expand Down Expand Up @@ -250,6 +252,7 @@ public void AzureContainerAppsJobResourceDetectorReturnsResourceWithAttributes()
Assert.StartsWith("https://opentelemetry.io/schemas/", resource.SchemaUrl);

Assert.Contains(new KeyValuePair<string, object>(ResourceSemanticConventions.AttributeServiceName, "containerAppJobName"), resource.Attributes);
Assert.Contains(new KeyValuePair<string, object>(ResourceSemanticConventions.AttributeCloudPlatform, "azure.container_apps"), resource.Attributes);

foreach (var kvp in AzureContainerAppsResourceDetector.AzureContainerAppJobResourceAttributes)
{
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