Add INSTALL.md with pointers to plugin and operator installation + new HELM instructions

INSTALL.md

@@ -0,0 +1,132 @@
+# Installing device plugins to cluster
+
+## Install device plugins via a DaemonSet
+
+Each plugin can be installed via a DaemonSet. The install changes slightly based on the desired plugin. See install instructions per [plugin](README.md#plugins).
+
+Installing plugins via DaemonSets deployes them to the ```default``` (or currently active) namespace. Use kubectl's ```--namespace``` argument to change the deployment namespace.
+
+## Install device plugins via device plugin operator
+
+A more advanced install method is via device plugin operator. Operator configures plugin deployments based on the supplied device plugin CRDs (Custom Resource Definitions). See installation instructions in the [operator README](cmd/operator/README.md#installation).
+
+Operator installs device plugins to the same namespace where the operator itself is deployed. The default operator namespace is ```inteldeviceplugins-system```.
+
+## Install with HELM charts
+
+Device plugins can also be installed to a cluster using the device plugin [operator Helm chart](https://github.com/intel/helm-charts/tree/main/charts/device-plugin-operator) (depending on cert-manager and NFD). Individual plugin projects are under https://github.com/intel/helm-charts/tree/main/charts/.
+
+These steps will install device plugin operator and plugins under ```inteldeviceplugins-system``` namespace. It's possible to change the target namespace by changing the ```--namespace``` value in the helm install command.
+
+### Installing HELM repositories
+
+```bash
+helm repo add jetstack https://charts.jetstack.io # for cert-manager
+helm repo add nfd https://kubernetes-sigs.github.io/node-feature-discovery/charts # for NFD
+helm repo add intel https://intel.github.io/helm-charts/ # for device-plugin-operator and plugins
+helm repo update
+```
+
+### Installing cert-manager
+
+```bash
+helm install --wait \
+  cert-manager jetstack/cert-manager \
+  --namespace cert-manager \
+  --create-namespace \
+  --version v1.11.0 \
+  --set installCRDs=true
+```
+
+NOTE: cert-manager install takes a while to complete.
+
+### Installing NFD
+
+```bash
+helm install nfd nfd/node-feature-discovery \
+  --namespace node-feature-discovery --create-namespace --version 0.12.1 \
+  --set 'master.extraLabelNs={gpu.intel.com,sgx.intel.com}' \
+  --set 'master.resourceLabels={gpu.intel.com/millicores,gpu.intel.com/memory.max,gpu.intel.com/tiles,sgx.intel.com/epc}'
+```
+
+### Installing operator
+
+```bash
+helm install dp-operator intel/intel-device-plugins-operator --namespace inteldeviceplugins-system --create-namespace
+```
+
+### Installing specific plugins
+
+Replace PLUGIN with the desired plugin name. At least the following plugins are supported: **gpu, sgx, qat, dlb, dsa & iaa**.
+
+```bash
+helm install <PLUGIN> intel/intel-device-plugins-<PLUGIN> --namespace inteldeviceplugins-system --create-namespace \
+  --set nodeFeatureRule=true
+```
+
+### Listing available versions
+
+Use helm's search functionality to list available versions.
+
+```bash
+helm search repo intel/intel-device-plugins-operator --versions
+helm search repo intel/intel-device-plugins-<plugin> --versions
+```
+
+For example, operator chart versions with development versions included.
+```bash
+$ helm search repo intel/intel-device-plugins-operator --versions --devel
+NAME                               	CHART VERSION	APP VERSION	DESCRIPTION
+intel/intel-device-plugins-operator	0.26.0       	0.26.0     	A Helm chart for Intel Device Plugins Operator ...
+intel/intel-device-plugins-operator	0.25.1       	0.25.1     	A Helm chart for Intel Device Plugins Operator ...
+intel/intel-device-plugins-operator	0.25.1-helm.0	0.25.0     	A Helm chart for Intel Device Plugins Operator ...
+intel/intel-device-plugins-operator	0.25.0       	0.25.0     	A Helm chart for Intel Device Plugins Operator ...
+intel/intel-device-plugins-operator	0.24.1       	0.24.1     	A Helm chart for Intel Device Plugins Operator ...
+intel/intel-device-plugins-operator	0.24.1-helm.0	0.24.0     	A Helm chart for Intel Device Plugins Operator ...
+intel/intel-device-plugins-operator	0.24.0       	0.24.0     	A Helm chart for Intel Device Plugins Operator ...
+```
+
+### Customizing plugins
+
+To customize plugin features, see the available chart values:
+```bash
+helm show values intel/intel-device-plugins-<PLUGIN>
+```
+
+For example, qat plugin has these values:
+```bash
+$ helm show values intel/intel-device-plugins-qat
+name: qatdeviceplugin-sample
+
+image:
+  hub: intel
+  tag: ""
+
+initImage:
+  hub: intel
+  tag: ""
+
+dpdkDriver: vfio-pci
+kernelVfDrivers:
+  - c6xxvf
+  - 4xxxvf
+maxNumDevices: 128
+logLevel: 4
+
+nodeSelector:
+  intel.feature.node.kubernetes.io/qat: 'true'
+
+nodeFeatureRule: true
+```
+
+### Uninstall
+
+Uninstall each installed component with ```helm uninstall```:
+
+```bash
+# repeat first step as many times as there are plugins installed
+helm uninstall -n inteldeviceplugins-system <PLUGIN>
+helm uninstall -n inteldeviceplugins-system dp-operator
+helm uninstall -n node-feature-discovery nfd
+helm uninstall -n cert-manager cert-manager
+```