Tags let you classify Microservices Engine (MSE) resources by cost center, environment, team, or project. Attach key-value pairs to instances and applications, then use those tags to filter resources in the console, monitor resources, and break down costs in billing reports.
Tagging scope
Tag support varies by MSE sub-product:
| Sub-product | Taggable resource | Tag level |
|---|---|---|
| Microservices Registry | Registry instances | Instance |
| Cloud-native Gateway | Gateway instances | Instance |
| Microservices Governance | Onboarded applications | Application |
Tag constraints
Each tag is a Tag Key : Tag Value pair. This format applies to product tags, device tags, and group tags. The following constraints apply:
| Constraint | Details |
|---|---|
| Reserved prefix | Tags prefixed with acs: are system-reserved. Do not use this prefix for a Tag Key. You can view system-reserved tags but cannot edit or delete them. |
| Cost allocation sync | Tags added in the console sync to the cost allocation tags list on the next day (T+1). |
| Governance timing | For Microservices Governance, you cannot add tags during application creation. Add tags after the application is onboarded, either in the console or using the TagResources API. Billing data for the tags becomes available one hour after they are added. |
Add tags
You can add tags in the MSE console or through the TagResources API.
Console
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Log on to the MSE console and select a region in the top navigation bar.
-
In the left-side navigation pane, navigate to the target resource:
Sub-product Navigation path Target page Microservices Registry Microservices Registry > Instances Instances page Cloud-native Gateway Cloud-native Gateway > Gateways Gateways page Microservices Governance Microservices Governance > Application Governance Application List page (select a namespace first) -
Locate the tag icon for the target resource and click Edit in the tooltip.
-
Microservices Registry: Hover over the
icon in the Label column of the target instance. -
Cloud-native Gateway: Hover over the
icon in the Tag column of the target instance. -
Microservices Governance: Hover over the
icon for the target application.
-
-
On the Configure Tags page, enter a Tag Key and a Tag Value, and then click OK.
Microservices Registry

Cloud-native Gateway
|
|
|
Microservices Governance

Remove tags
-
Log on to the MSE console and select a region in the top navigation bar.
-
Navigate to the target resource. For navigation paths, see the table in Add tags.
-
Hover over the tag icon for the target instance or application, and then click Edit in the tooltip.
-
On the Configure Tags page, click the
icon next to the tag to remove, and then click OK.
Microservices Registry

Cloud-native Gateway
|
|
|
Microservices Governance

API operations
To manage tags programmatically, use the following API operations:
| API | Description |
|---|---|
| TagResources | Add tags to MSE resources |
| ListTagResources | Query tags attached to MSE resources |
| UntagResources | Remove tags from MSE resources |



