Configure Openshift vSphere Cloud Provider
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In this post I will show you how can you use vmware for persistent storagi on Openshift.
Parst of the Openshift series
- Part1: Install Opeshift
- Part2: LDAP authentication for Openshift
- Part3: Keycloak SSO authentication for Openshift
- Part4: Gitlab SSO authentication for Openshift
- Part5: Ceph persistent storage for Openshift
vSphere Configuration
- Create a folder for all the VMs in vCenter
- In the navigator, select the data center
- Right-click and select the menu option to create the folder.
- Select All vCenter Actions > New VM and Template Folder.
- Move Openshift vms to this folder
- The name of the virtual machine must match the name of the nodes for the OpenShift cluster.
Set up the GOVC environment:
# on deployer
curl -LO https://github.com/vmware/govmomi/releases/download/v0.20.0/govc_linux_amd64.gz
gunzip govc_linux_amd64.gz
chmod +x govc_linux_amd64
cp govc_linux_amd64 /usr/bin/govc
echo "export GOVC_URL='vCenter IP OR FQDN'" >> /etc/profile
echo "export GOVC_USERNAME='vCenter User'" >> /etc/profile
echo "export GOVC_PASSWORD='vCenter Password'" >> /etc/profile
echo "export GOVC_INSECURE=1" >> /etc/profile
source /etc/profile
govc vm.info <vm>
govc ls /Datacenter/vm/<vm-folder-name>
govc vm.change -e="disk.enableUUID=1" -vm='VM Path'
Configure ansible installer
nano /etc/hosts
openshift_master_dynamic_provisioning_enabled=true
openshift_cloudprovider_kind=vsphere
openshift_cloudprovider_vsphere_username=<vCenter User>
openshift_cloudprovider_vsphere_password=<vCenter Password>
openshift_cloudprovider_vsphere_host=<vCenter IP OR FQDN>
openshift_cloudprovider_vsphere_datacenter=<Datacenter>
openshift_cloudprovider_vsphere_datastore=<Datastore>
openshift_cloudprovider_vsphere_folder=<vm-folder-name>
Add providerID
nano openshift-vmware-pacher.sh
DATACENTER='<Datacenter>'
FOLDER='<vm-folder-name>'
for vm in $(govc ls /$DATACENTER/vm/$FOLDER ); do
MACHINE_INFO=$(govc vm.info -json -dc=$DATACENTER -vm.ipath="$vm" -e=true)
# My VMs are created on vmware with upper case names, so I need to edit the names with awk
VM_NAME=$(jq -r ' .VirtualMachines[] | .Name' <<< $MACHINE_INFO | awk '{print tolower($0)}')
# UUIDs come in lowercase, upper case then
VM_UUID=$( jq -r ' .VirtualMachines[] | .Config.Uuid' <<< $MACHINE_INFO | awk '{print toupper($0)}')
echo "Patching $VM_NAME with UUID:$VM_UUID"
# This is done using dry-run to avoid possible mistakes, remove when you are confident you got everything right.
kubectl patch node $VM_NAME -p "{\"spec\":{\"providerID\":\"vsphere://$VM_UUID\"}}"
done
chmod +x openshift-vmware-pacher.sh
./openshift-vmware-pacher.sh
Run the Installer
# deployer
cd /usr/share/ansible/openshift-ansible/
sudo ansible-playbook -i inventory/hosts.localhost playbooks/prerequisites.yml
sudo ansible-playbook -i inventory/hosts.localhost playbooks/deploy_cluster.yml
# If installastion failed or went wrong, the following uninstallation script can be run, and running installation can be tried again:
sudo ansible-playbook -i inventory/hosts.localhost playbooks/adhoc/uninstall.yml
Create vSphere storage-class
nano vmware-sc.yml
kind: StorageClass
apiVersion: storage.k8s.io/v1
metadata:
annotations:
storageclass.kubernetes.io/is-default-class: "true"
name: "vsphere-standard"
provisioner: kubernetes.io/vsphere-volume
parameters:
diskformat: zeroedthick
datastore: "NFS"
reclaimPolicy: Delete
oc aplay -f vmware-sc.yml