Developer Mode

Developer mode is intended to be used for development and testing purposes. Usage of this mode in production environments is not supported.

Prerequisites

The node has passed the host-check
Helm 3 and Git are installed on your local machine.

Installation of the First Node

You can install Harvester on an RKE2 cluster using the Helm CLI. For more information about installing and configuring the Harvester Helm chart, see the readme.

Create an RKE2 configuration file.

 sudo mkdir -p /etc/rancher/rke2
 cat <<EOF | sudo tee /etc/rancher/rke2/config.yaml
 disable:
 ** rke2-snapshot-controller
 ** rke2-snapshot-controller-crd
 ** rke2-snapshot-validation-webhook
 node-label:
 ** harvesterhci.io/managed=true
 token: token
 cni:
 ** multus
 ** canal
 EOF

Install RKE2.

 curl -sfL https://get.rke2.io | sudo sh -
 sudo systemctl enable rke2-server.service --now

Create a kubeconfig file.

 mkdir -p ~/.kube
 sudo cp /etc/rancher/rke2/rke2.yaml ~/.kube/config
 sudo chown $(id -u):$(id -g) ~/.kube/config

important

Allow some time for all pods in the kube-system namespace to reach the Ready state before proceeding to the next step.

If you are unable to locate the kubectl binary in /usr/local/bin, check /var/lib/rancher/rke2/bin.

Install system-upgrade-controller. This Kubernetes-native upgrade controller for nodes installs upgrade.cattle.io/v1 CRDs.

 kubectl apply -f https://github.com/rancher/system-upgrade-controller/releases/download/v0.13.1/system-upgrade-controller.yaml

Create the cattle-system namespace.
```
 kubectl create ns cattle-system
```

Add the Rancher chart repository.

 helm repo add rancher-latest https://releases.rancher.com/server-charts/latest

Install the Rancher v2.7.5 chart.

 helm install rancher rancher-latest/rancher \
 --namespace cattle-system \
 --set tls=external \
 --set rancherImagePullPolicy=IfNotPresent \
 --set rancherImage=rancher/rancher \
 --set rancherImageTag=v2.7.5 \
 --set noDefaultAdmin=false \
 --set features="multi-cluster-management=false\,multi-cluster-management-agent=false" \
 --set useBundledSystemChart=true \
 --set bootstrapPassword=admin

Allow some time for all pods in the cattle-system namespace to reach the Ready state before proceeding to the next step.

Clone the rancher/charts repository.

 git clone https://github.com/rancher/charts -b dev-v2.7

Install the rancher-monitoring-crd chart.

 helm install rancher-monitoring-crd ./charts/charts/rancher-monitoring-crd/102.0.2+up40.1.2/

Create the harvester-system namespace.
```
 kubectl create ns harvester-system
```

Clone the harvester/harvester repository.

 git clone https://github.com/harvester/harvester.git

Install the harvester-crd chart.

 helm install harvester-crd ./harvester/deploy/charts/harvester-crd --namespace harvester-system

Install the Harvester chart using kube-vip running on a static IP.

 VIP_ADDRESS="replace with an IP which is allocated to any device, such as 192.168.5.131"
 helm install harvester ./harvester/deploy/charts/harvester --namespace harvester-system \
 --set harvester-node-disk-manager.enabled=true \
 --set "harvester-node-disk-manager.labelFilter={COS_*,HARV_*}" \
 --set harvester-network-controller.enabled=true \
 --set harvester-network-controller.vipEnabled=true \
 --set harvester-load-balancer.enabled=true \
 --set kube-vip.enabled=true \
 --set kube-vip-cloud-provider.enabled=true \
 --set longhorn.enabled=true \
 --set longhorn.defaultSettings.defaultDataPath=/var/lib/harvester/defaultdisk \
 --set longhorn.defaultSettings.taintToleration=kubevirt.io/drain:NoSchedule \
 --set rancherEmbedded=true \
 --set service.vip.enabled=true \
 --set service.vip.mode=static \
 --set service.vip.ip=${VIP_ADDRESS}

Access the Harvester UI at https://${VIP_ADDRESS}. The default password is admin.

Installation of Other Nodes

Create an RKE2 configuration file.

 sudo mkdir -p /etc/rancher/rke2
 cat <<EOF | sudo tee /etc/rancher/rke2/config.yaml
 server: https://<vip address>:9345
 token: token
 EOF

Install the RKE2 agent.

 curl -sfL https://get.rke2.io | INSTALL_RKE2_TYPE="agent" sudo sh -
 sudo systemctl enable rke2-agent.service --now

Uninstallation

sudo /usr/local/bin/rke2-uninstall.sh