Kcli 101

kcli.md

1. Install kcli
   https://kcli.readthedocs.io/en/latest/index.html#deploying-kubernetes-openshift-clusters-and-applications-on-top

2. Get a pull secret, save as openshift-pull-secret.json
   https://console.redhat.com/openshift/create/local

3. Create a secondary network
   kcli create network -c 192.168.20.0/24 secondary

4. Create this yaml, save as parameters.yml

cluster: multi-homing
domain: yourname.corp
version: nightly
tag: 4.14
ctlplanes: 3
workers: 2
memory: 24576
numcpus: 20
disk_size: 60
kubetype: openshift
network_type: OVNKubernetes
pull_secret: openshift-pull-secret.json
extra_networks:
- secondary
sslip: true

• Notes:
• sslip is a workaround for node's resolv.conf getting overwritten
• A special pull secret is needed for nightly, you can use stable instead or get the secret.

6. Create cluster kcli create cluster openshift --pf parameters.yml multi-homing

7. Install kubevirt
   kcli create app openshift kubevirt-hyperconverged

• Note: You can add this to the yaml, and it will include kubevirt in the install.

apps:
- kubevirt-hyperconverged

Thanks Karim Boumedhel for this wonderful tool.

In order to use a custom nightly (thanks Miguel)
kcli create kube openshift --paramfile parameters.yml multi-homing -P version=nightly -P tag=4.17.0-0.nightly-2024-07-09-012629

got an error when starting the cluster:

Image rhcos-414.92.202402130420-0-openstack.x86_64.qcow2 not Added because Pool default not found
Pool default not found

This fixed it:

virsh pool-define /dev/stdin <<EOF
<pool type='dir'>
  <name>default</name>
  <target>
    <path>/var/lib/libvirt/images</path>
  </target>
</pool>
EOF

virsh pool-start default
virsh pool-autostart default

just as FYI

To delete kcli delete kube multi-homing
(will later update the main post)

To deploy CNV nightly over the OCP deployed by KCLI, use the nightly pull-secret to delpoy OCP like decribed above, then use this knowledge base article to deploy CNV with OLM, BUT skip steps 1-6 since you already use the nightly pull-secret

To deploy CNV nightly over the OCP deployed by KCLI, use the nightly pull-secret to delpoy OCP like decribed above, then use this knowledge base article to deploy CNV with OLM, BUT skip steps 1-6 since you already use the nightly pull-secret

This assumes you're using an OpenShift pull secret that already grants access to the CNV nightly repos - like the OpenShift QE pull secret.

Might worth please to update what worked for you at the end (i.e do use steps 1-5, 6 was a typo)

Might worth please to update what worked for you at the end (i.e do use steps 1-5, 6 was a typo)

In the end I used 1-5 steps, using my quay. Starting from step 6, assuming that the nightly OpenShift pull secret will work seemlessly simply did not work for me. @o If you prefer I can update the original message inline if you prefer

Thanks, no rush for now
We will have soon an easier method for it