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Showing content from https://github.com/Zetanova/hyperv-csi-driver below:

Zetanova/hyperv-csi-driver: hyperv csi-driver for kubernetes persistence

This repository hosts the CSI HyperV driver and all of its build and dependent configuration files to deploy the driver.

The driver connects to the HyperV Host, creates a VirtualDisk and attaches it to the requested VirtualMachine.

• A HyperV Failover cluster or share nothing HyperV array
• Kubernete cluster with nodes running nested on HyperV
• All Kubernetes nodes should have hyperv-daemons installed
• Powershell 6+ should to be installed on all HyperV hosts
• SSHd (OpenSSH server) need to be running on all HyperV hosts
• It should be possible to connect from the csi-driver container to all HyperV hosts with Powershell over SSH transport
• one SSH PupPrivkey

on each HyperV Host run in powershell:

#install sshd
Add-WindowsCapability -Online -Name OpenSSH.Server~~~~0.0.1.0
Start-Service sshd
Set-Service -Name sshd -StartupType 'Automatic'

#to check the filewall rule
Get-NetFirewallRule -Name *ssh*

#install pwsh
iex "& { $(irm https://aka.ms/install-powershell.ps1) } -UseMSI"

#workaround for some sshd bug
New-Item -ItemType SymbolicLink -path C:\ -Name pwsh -Target "C:\Program Files\PowerShell\7"

Edit the sshd_config file located at $env:ProgramData\ssh.

PubkeyAuthentication yes
#PasswordAuthentication yes
Subsystem	powershell	c:/pwsh/pwsh.exe -sshs -NoLogo -NoProfile

more info under https://stackoverflow.com/questions/16212816/setting-up-openssh-for-windows-using-public-key-authentication

Edit or create the file $env:ProgramData\ssh\administrators_authorized_keys and add your personal ssh pubkey to the file. Ensure that only System and Administrators in the UAC permissions, or else sshd will not take it.

Restart ssdh with Restart-Service sshd

Test connection from your windows client:

Enter-PSSession <ServerFQDN> --SSHTransport -UserName Administrator

Currently only ClusterStorageVolume is supported.

To enable storage of VirtualDisks on a CSV, create one subfolder "Volumes" on the CSV

The volume property "Storage" is to specify the CSV by name. C:\ClusterStorage\<Storage>\Volumes\<VolumeId>.vdhx

centos/rhel:

#install hyperv kvp daemon
sudo yum install -y hyperv-daemons

#install pwsh
curl https://packages.microsoft.com/config/rhel/7/prod.repo | sudo tee /etc/yum.repos.d/microsoft.repo
sudo yum install -y powershell

#edit /etc/ssh/sshd_config
#add: Subsystem powershell /usr/bin/pwsh -sshs -NoLogo -NoProfile

sudo shutdown -r now

ubuntu

sudo apt-get update
sudo apt-get install -y linux-cloud-tools-generic

sudo apt-get install -y powershell

#edit /etc/ssh/sshd_config
#add: Subsystem powershell /usr/bin/pwsh -sshs -NoLogo -NoProfile

sudo shutdown -r now

Optional add to all kubernetes VM's up to 4 scsi controllers one scsi controller supports 64 disks

create a new ssh key

ssh-keygen -a 100 -t ed25519 -f ~/path/to/local-ssh-keys -C "csi-hyperv"

ssh-keyscan -H -t ed25519 server1 server2 > ~/path/to/known_hosts
ssh-keyscan -H -t ed25519 server1.domain.local server2.domain.local >> ~/path/to/known_hosts

create a ssh secret and deploy the driver

kubectl create secret generic csi-hyperv-key --from-file=id_ed25519=~/path/to/local-ssh-keys --from-file=known_hosts=~/path/to/known_hosts

#static namespace csi-hyperv
kubectl apply -f .\deploy\kubernetes-1.19\csi-hyperv\rbac.yaml
kubectl apply -f .\deploy\kubernetes-1.19\csi-hyperv\controller.yaml
kubectl apply -f .\deploy\kubernetes-1.19\csi-hyperv\node.yaml

To test connection from the container to the HyperV host servers

kubectl apply -f .\examples\pwsh-test.yaml

#after few moments
kubectl exec -it pwsh-test -- pwsh

#test with:
Enter-PSSession server1 -UserName administrator
Enter-PSSession server1.domain.local -UserName administrator

kubectl apply -f .\examples\csi-storageclass.yaml
kubectl apply -f .\examples\csi-pvc.yaml

#after few moments 
kubectl get pvc csi-pvc

#verify that the VirtualDisk on the storage was created
#ClusterStorage\<Storage>\Volumes\<VolumeId>.vhdx

#use the PVC as volume mount

• Currently only ClusterStorageVolumes are supported. The cluster storage can run over S2D or SOFS.
• The support of a shared-nothing HyperV Host Array is technically possible, but not implemented.

cd src
docker build -f hyperv-csi-driver\Dockerfile -t zetanova/hyperv-csi-driver:latest .
docker push zetanova/hyperv-csi-driver:latest

running since Jan. 2020 tested up to kubernetes 1.20

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