Enhance the instructions for PowerVS image build with DHCP support (#1865)

Author: Amulyam24

docs/book/src/developer/build-images.md

@@ -59,7 +59,12 @@ Compose the `user-variables.json` file containing the information for the PowerV
 - `service_instance_id`: PowerVS service instance ID
 - `ssh_private_key_file`: Path to the SSH private key file used to connect to the vm while image preparation, e.g: /Users/manjunath/.ssh/id_rsa
 - `zone`: PowerVS zone, e.g: osa21
-- `dhcp_network`: Boolean value when set to true, a DHCP server will be created in PowerVS workspace and its private network will be attached to VM, Make sure to customize the network settings while building OS using [pvsadm tool](https://github.com/ppc64le-cloud/pvsadm/blob/main/docs/Build%20DHCP%20enabled%20Centos%20Images.md).
+- `dhcp_network`: Set to `true` if the image has to be built with DHCP support
+
+> **Note:**
+> 1. When setting `dhcp_network: true`, you need to build an OS image with certain network settings using [pvsadm tool](https://github.com/ppc64le-cloud/pvsadm/blob/main/docs/Build%20DHCP%20enabled%20Centos%20Images.md) and replace [the fields](https://github.com/kubernetes-sigs/image-builder/blob/cb925047f388090a0db3430ca3172da63eff952c/images/capi/packer/powervs/centos-8.json#L6) with the custom image details.
+> 2. Clone the image-builder repo and run `make build` commands from a system where the DHCP private IP can be reached and SSH able(you can use a transit gateway with connections added for VPC and PowerVS workspace and build the image from a virtual server instance in VPC).
+
 
 ```shell
 # Clone the image-builder repository

docs/book/src/machine-images/powervs.md

@@ -13,8 +13,17 @@
 | us-south | power-oss-bucket | [capibm-powervs-centos-streams8-1-23-5.ova.gz][streams8-1-23-5] | 1.23.5             |
 | us-south | power-oss-bucket | [capibm-powervs-centos-streams8-1-22-4.ova.gz][streams8-1-22-4] | 1.22.4             |
 
-Note: These images are built using the [image-builder][image-builder] tool and more information can be found [here](../developer/build-images.md#powervs)
+## PowerVS Images with DHCP based network
 
+| Region   | Bucket           | Object                                                          | Kubernetes Version |
+|----------|------------------|-----------------------------------------------------------------|--------------------|
+| us-south | power-oss-bucket | [capibm-powervs-centos-streams9-1-29-3-1719470782.ova.gz][centos-streams9-1-29-3] | 1.29.3             |
+| us-south | power-oss-bucket | [capibm-powervs-centos-streams8-1-28-4-1707287079.ova.gz][centos-streams8-1-28-4] | 1.28.4             |
+
+> **Note:** These images are built using the [image-builder][image-builder] tool and more information can be found [here](../developer/build-images.md#powervs)
+
+[centos-streams9-1-29-3]: https://power-oss-bucket.s3.us-south.cloud-object-storage.appdomain.cloud/capibm-powervs-centos-streams9-1-29-3-1719470782.ova.gz
+[centos-streams8-1-28-4]: https://power-oss-bucket.s3.us-south.cloud-object-storage.appdomain.cloud/capibm-powervs-centos-streams8-1-28-4-1707287079.ova.gz
 [streams8-1-29-3]: https://power-oss-bucket.s3.us-south.cloud-object-storage.appdomain.cloud/capibm-powervs-centos-streams8-1-29-3.ova.gz
 [streams8-1-28-4]: https://power-oss-bucket.s3.us-south.cloud-object-storage.appdomain.cloud/capibm-powervs-centos-streams8-1-28-4.ova.gz
 [streams8-1-27-2]: https://power-oss-bucket.s3.us-south.cloud-object-storage.appdomain.cloud/capibm-powervs-centos-streams8-1-27-2.ova.gz