add tencentcloud_ha_vip_instance_attachment doc (#3513)

Co-authored-by: mikatong <mikatong@tencent.com>

Author: tongyiming

tencentcloud/provider.md

@@ -1303,6 +1303,7 @@ tencentcloud_nat_gateway_flow_monitor
 tencentcloud_nat_refresh_nat_dc_route
 tencentcloud_ha_vip
 tencentcloud_ha_vip_eip_attachment
+tencentcloud_ha_vip_instance_attachment
 tencentcloud_vpc_bandwidth_package
 tencentcloud_vpc_bandwidth_package_attachment
 tencentcloud_ipv6_address_bandwidth

website/docs/r/ha_vip_instance_attachment.html.markdown

@@ -0,0 +1,47 @@
+---
+subcategory: "Virtual Private Cloud(VPC)"
+layout: "tencentcloud"
+page_title: "TencentCloud: tencentcloud_ha_vip_instance_attachment"
+sidebar_current: "docs-tencentcloud-resource-ha_vip_instance_attachment"
+description: |-
+  Provides a resource to create a vpc ha_vip_instance_attachment
+---
+
+# tencentcloud_ha_vip_instance_attachment
+
+Provides a resource to create a vpc ha_vip_instance_attachment
+
+## Example Usage
+
+```hcl
+resource "tencentcloud_ha_vip_instance_attachment" "ha_vip_instance_attachment" {
+  instance_id   = "eni-xxxxxx"
+  ha_vip_id     = "havip-xxxxxx"
+  instance_type = "ENI"
+}
+```
+
+## Argument Reference
+
+The following arguments are supported:
+
+* `instance_id` - (Required, String, ForceNew) The unique ID of the slave machine or network card to which HaVip is bound.
+* `ha_vip_id` - (Optional, String, ForceNew) Unique ID of the HaVip instance.
+* `instance_type` - (Optional, String, ForceNew) The type of HaVip binding. Values:CVM, ENI.
+
+## Attributes Reference
+
+In addition to all arguments above, the following attributes are exported:
+
+* `id` - ID of the resource.
+
+
+
+## Import
+
+vpc ha_vip_instance_attachment can be imported using the id(${haVipId}#${instanceType}#${instanceId}), e.g.
+
+```
+terraform import tencentcloud_ha_vip_instance_attachment.ha_vip_instance_attachment ha_vip_instance_attachment_id
+```
+

website/tencentcloud.erb

@@ -6726,6 +6726,9 @@
                                 <li>
                                     <a href="/docs/providers/tencentcloud/r/ha_vip_eip_attachment.html">tencentcloud_ha_vip_eip_attachment</a>
                                 </li>
+                                <li>
+                                    <a href="/docs/providers/tencentcloud/r/ha_vip_instance_attachment.html">tencentcloud_ha_vip_instance_attachment</a>
+                                </li>
                                 <li>
                                     <a href="/docs/providers/tencentcloud/r/ipv6_address_bandwidth.html">tencentcloud_ipv6_address_bandwidth</a>
                                 </li>