Add functionality for tagging resource by its crn

resalloc_ibm_cloud/argparsers.py

@@ -68,6 +68,13 @@ def vm_arg_parser():
     )
     parser_create.add_argument(
         "--resource-group-id", help="Resource group id, get it from `$ ibmcloud resources`"
+    )
+    parser_create.add_argument(
+        "--tags",
+        type=str,
+        nargs="+",
+        help="Space separated list of key:value tags, e.g. app:copr",
+    )
     parser_delete = subparsers.add_parser(
         "delete", help="Delete instance by it's name from IBM Cloud"
     )

resalloc_ibm_cloud/ibm_cloud_vm.py

@@ -210,6 +210,9 @@ def create_instance(service, instance_name, opts):
         instance_id = opts.instance_created["id"]
         log.info("Instance ID: %s", instance_id)
 
+        if opts.tags:
+            assign_user_tags(opts.instance_created["crn"], service, opts)
+
         if opts.no_floating_ip:
             # assuming you have access through to private IP address
             ip_address = _get_private_ip_of_instance(instance_id, service)
@@ -227,6 +230,25 @@ def create_instance(service, instance_name, opts):
         raise
 
 
+def assign_user_tags(crn, service, opts):
+    """
+    Assign tags to the resource according to the CRN within the region.
+    """
+    service_url = "https://tags.global-search-tagging.cloud.ibm.com/v3"
+    url = service_url + "/tags/attach?tag_type=user"
+    headers = {
+        "Accept": "application/json",
+        "Authorization": f"Bearer {service.authenticator.token_manager.get_token()}",
+        "Content-Type": "application/json",
+    }
+    data = {
+        "resources": [{"resource_id": crn}],
+        "tag_names": list(opts.tags),
+    }
+    response = requests.post(url, headers=headers, json=data)
+    response.raise_for_status()
+
+
 def delete_all_ips(service):
     """
     Go through all reserved IPs, and remove all which are not assigned