[REDHOSTS-612] Update Tags API Documentation (#3302)

Co-authored-by: ci.datadog-api-spec <[email protected]>

Author: api-clients-generation-pipeline[bot]

.generator/schemas/v1/openapi.yaml

@@ -4219,14 +4219,14 @@ components:
           type: boolean
       type: object
     HostTags:
-      description: Set of tags to associate with your host.
+      description: Host name and an array of its tags
       properties:
         host:
           description: Your host name.
           example: test.host
           type: string
         tags:
-          description: A list of tags to apply to the host.
+          description: A list of tags associated with a host.
           items:
             description: A given tag in a list.
             example: environment:production
@@ -18972,18 +18972,18 @@ components:
       - match
       type: object
     TagToHosts:
-      description: In this object, the key is the tag, the value is a list of host
-        names that are reporting that tag.
+      description: In this object, the key is the tag, and the value is a list of
+        host names that are reporting that tag.
       properties:
         tags:
           additionalProperties:
-            description: A list of additional properties for tags.
+            description: A list of host names which contain this tag
             items:
               description: A given tag in a list.
               example: test.metric.host
               type: string
             type: array
-          description: A list of tags to apply to the host.
+          description: A mapping of tags to host names
           type: object
       type: object
     TargetFormatType:
@@ -36008,11 +36008,13 @@ paths:
         - synthetics_global_variable_write
   /api/v1/tags/hosts:
     get:
-      description: Return a mapping of tags to hosts for your whole infrastructure.
+      description: Returns a mapping of tags to hosts. For each tag, the response
+        returns a list of host names that contain this tag. There is a restriction
+        of 10k total host names from the org that can be attached to tags and returned.
       operationId: ListHostTags
       parameters:
-      - description: When specified, filters host list to those tags with the specified
-          source.
+      - description: Source to filter. [Complete list of source attribute values](https://docs.datadoghq.com/integrations/faq/list-of-api-source-attribute-value).
+          Use "user" source for custom-defined tags.
         in: query
         name: source
         required: false
@@ -36043,29 +36045,29 @@ paths:
       - apiKeyAuth: []
         appKeyAuth: []
       - AuthZ: []
-      summary: Get Tags
+      summary: Get All Host Tags
       tags:
       - Tags
       x-permission:
         operator: OPEN
         permissions: []
   /api/v1/tags/hosts/{host_name}:
     delete:
-      description: 'This endpoint allows you to remove all user-assigned tags
+      description: 'This endpoint allows you to remove all tags
 
-        for a single host.'
+        for a single host. If no source is specified, only deletes from the source
+        "User".'
       operationId: DeleteHostTags
       parameters:
-      - description: This endpoint allows you to remove all user-assigned tags for
-          a single host.
+      - description: Specified host name to delete tags
         in: path
         name: host_name
         required: true
         schema:
           type: string
-      - description: 'The source of the tags (for example chef, puppet).
-
-          [Complete list of source attribute values](https://docs.datadoghq.com/integrations/faq/list-of-api-source-attribute-value).'
+      - description: Source of the tags to be deleted. [Complete list of source attribute
+          values](https://docs.datadoghq.com/integrations/faq/list-of-api-source-attribute-value).
+          Use "user" source for custom-defined tags.
         in: query
         name: source
         required: false
@@ -36095,14 +36097,14 @@ paths:
       description: Return the list of tags that apply to a given host.
       operationId: GetHostTags
       parameters:
-      - description: When specified, filters list of tags to those tags with the specified
-          source.
+      - description: Name of the host to retrieve tags for
         in: path
         name: host_name
         required: true
         schema:
           type: string
-      - description: Source to filter.
+      - description: Source to filter. [Complete list of source attribute values](https://docs.datadoghq.com/integrations/faq/list-of-api-source-attribute-value).
+          Use "user" source for custom-defined tags.
         in: query
         name: source
         required: false
@@ -36129,25 +36131,25 @@ paths:
           description: Not Found
         '429':
           $ref: '#/components/responses/TooManyRequestsResponse'
-      summary: Get host tags
+      summary: Get Host Tags
       tags:
       - Tags
     post:
       description: 'This endpoint allows you to add new tags to a host,
 
-        optionally specifying where these tags come from.'
+        optionally specifying what source these tags come from. If tags already exist,
+        appends new tags to the tag list. If no source is specified, defaults to "user".'
       operationId: CreateHostTags
       parameters:
-      - description: This endpoint allows you to add new tags to a host, optionally
-          specifying where the tags came from.
+      - description: Specified host name to add new tags
         in: path
         name: host_name
         required: true
         schema:
           type: string
-      - description: 'The source of the tags.
-
-          [Complete list of source attribute values](https://docs.datadoghq.com/integrations/faq/list-of-api-source-attribute-value).'
+      - description: Source to add tags. [Complete list of source attribute values](https://docs.datadoghq.com/integrations/faq/list-of-api-source-attribute-value).
+          Use "user" source for custom-defined tags. If no source is specified, defaults
+          to "user".
         example: chef
         in: query
         name: source
@@ -36192,16 +36194,15 @@ paths:
         an integration source with those supplied in the request.'
       operationId: UpdateHostTags
       parameters:
-      - description: This endpoint allows you to update/replace all in an integration
-          source with those supplied in the request.
+      - description: Specified host name to change tags
         in: path
         name: host_name
         required: true
         schema:
           type: string
-      - description: 'The source of the tags (for example chef, puppet).
-
-          [Complete list of source attribute values](https://docs.datadoghq.com/integrations/faq/list-of-api-source-attribute-value)'
+      - description: Source to update tags. [Complete list of source attribute values](https://docs.datadoghq.com/integrations/faq/list-of-api-source-attribute-value).
+          Use "user" source for custom-defined tags. If no source specified, defaults
+          to "user".
         in: query
         name: source
         required: false
@@ -39217,7 +39218,8 @@ tags:
 
     by a source. For example, some valid sources include nagios, hudson, jenkins,
 
-    users, feed, chef, puppet, git, bitbucket, fabric, capistrano, etc.
+    users, feed, chef, puppet, git, bitbucket, fabric, capistrano, etc. Find a complete
+    list of source type names under [API Source Attributes](https://docs.datadoghq.com/integrations/faq/list-of-api-source-attribute-value).
 
 
     Read more about tags on [Getting Started with Tags](https://docs.datadoghq.com/getting_started/tagging/).'

examples/v1/tags/GetHostTags.java

@@ -1,4 +1,4 @@
-// Get host tags returns "OK" response
+// Get Host Tags returns "OK" response
 
 import com.datadog.api.client.ApiClient;
 import com.datadog.api.client.ApiException;

examples/v1/tags/ListHostTags.java

@@ -1,4 +1,4 @@
-// Get Tags returns "OK" response
+// Get All Host Tags returns "OK" response
 
 import com.datadog.api.client.ApiClient;
 import com.datadog.api.client.ApiException;