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Add doc to build centos image with DHCP support #602

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Apr 25, 2024
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Add doc to build centos image with DHCP support #602

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1 change: 1 addition & 0 deletions README.md
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Expand Up @@ -38,6 +38,7 @@ The typical image workflow comprises of the following steps:
- Advanced scenarios for Qcow2 to ova image conversion - [guide](docs/Advanced%20Scenarios%20for%20Qcow2%20to%20OVA.md)
- How to import image to PowerVS instance from COS - [guide](docs/How%20to%20Import%20Image%20to%20PowerVS%20Instance.md)
- How to upload image to COS bucket using pvsadm - [guide](docs/How%20to%20Upload%20Image%20to%20COS.md)
- How to build DHCP supported centos image - [guide](docs/Build%20DHCP%20enabled%20Centos%20Images.md)

### Samples
Please take a look at the [samples](samples/README.md) folder for end-to-end examples.
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32 changes: 32 additions & 0 deletions docs/Build DHCP enabled Centos Images.md
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# Overview

This guide talks about how to build centos image to support DHCP IP and import it to PowerVS workspace.

1. Build the image template
```
pvsadm image qcow2ova --prep-template-default > image-prep.template
```

2. Add the below lines to end of `image-prep.template` file to customize network.
```shell
mkdir -p /etc/cloud/cloud.cfg.d
cat <<EOF >> /etc/cloud/cloud.cfg.d/99-custom-networking.cfg
network: {config: disabled}
EOF
```

3. Build OVA image
```
pvsadm image qcow2ova --image-name <name> --image-dist centos --image-url https://cloud.centos.org/centos/8-stream/ppc64le/images/CentOS-Stream-GenericCloud-8-latest.ppc64le.qcow2 --prep-template image-prep.template
```
Note: Qcow2 CentOS images for ppc64le can be found [here](https://cloud.centos.org/centos/8-stream/ppc64le/images/)


4. Upload image to COS bucket
```
pvsadm image upload -b <bucket-name> -f <file-name> -r <region> --accesskey <access-key-value> --secretkey <secret-key-value>
```
5. Import OVA image to a PowerVS Workspace
```
pvsadm image import -n <service-instance-name> -b <bucket-name> -o <file-name> -r <region> --accesskey <access-key-value> --secretkey <secret-key-value> --pvs-image-name <final-image-name>
```
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