AWS Air-gapped GPU: Install Kommander

You have installed the Konvoy component and created a cluster. Now it is time to Install Kommander which will allow you to access the UI and attach new or existing clusters to monitor.

Prerequisites

Ensure you have reviewed all Prerequisites for Install.
Ensure you have a default StorageClass.
Ensure you have loaded all necessary images for your configuration. See Load the Images into Your Registry: Air-gapped Environments.
Note down the name of the cluster, where you want to install Kommander. If you do not know it, use kubectl get clusters -A to display it.

Create your Kommander Installer Configuration File

Set the environment variable for your cluster:

CODE

export CLUSTER_NAME=<your-management-cluster-name>

Copy the kubeconfig file of your Management cluster to your local directory:
CODE
```
dkp get kubeconfig -c ${CLUSTER_NAME} > ${CLUSTER_NAME}.conf
```

Create a configuration file for the deployment:

CODE

dkp install kommander --init --airgapped > kommander.yaml

If required, customize your kommander.yaml.
See Kommander Customizations for customization options. Some of them include:
- Custom Domains and Certificates
- HTTP proxy
- External Load Balancer
- GPU utilization, etc.
- Rook Ceph customization for Pre-provisioned environments

If required: If your cluster uses a custom AWS VPC and requires an internal load-balancer, set the traefik annotation to create an internal-facing ELB:

CODE

...
apps:
  traefik:
    enabled: true
    values: |
      service:
        annotations:
          service.beta.kubernetes.io/aws-load-balancer-internal: "true
...

Expand one of the following sets of instructions, depending on your license and application environments:

Enable GPU Resources

Append the following to the apps section in the kommander.yaml file to enable Nvidia platform services.
CODE
```
apps:
  nvidia-gpu-operator:
   enabled: true
```
Append the correct Nvidia Toolkit version based on your OS:
The NVIDIA Container Toolkit allows users to run GPU accelerated containers. The toolkit includes a container runtime library and utilities to automatically configure containers to leverage NVIDIA GPU and must be configured correctly according to your base operating system.
Centos 7.9/RHEL 7.9:
If you’re using Centos 7.9 or RHEL 7.9 as the base operating system for your GPU enabled nodes, set the toolkit.version parameter in your Kommander Installer Configuration file or <kommander.yaml> to the following:
CODE
```
kind: Installation
apps:
  nvidia-gpu-operator:
   enabled: true
   values: |
     toolkit:
       version: v1.14.6-centos7
```
RHEL 8.4/8.6 and SLES 15 SP3
If you’re using RHEL 8.4/8.6 or SLES 15 SP3 as the base operating system for your GPU enabled nodes, set the toolkit.version parameter in your Kommander Installer Configuration file or <kommander.yaml> to the following:
CODE
```
kind: Installation
apps:
  nvidia-gpu-operator:
   enabled: true
   values: |
     toolkit:
       version: v1.14.6-ubi8
```
Ubuntu 18.04 and 20.04
If you’re using Ubuntu 18.04 or 20.04 as the base operating system for your GPU enabled nodes, set the toolkit.version parameter in your Kommander Installer Configuration file or <kommander.yaml> to the following:
CODE
```
kind: Installation
apps:
  nvidia-gpu-operator:
   enabled: true
   values: |
     toolkit:
       version: v1.14.6-ubuntu20.04
```

Enable DKP Catalog Applications and Install Kommander in an Air-gapped Environment

If you want to enable DKP Catalog applications after installing DKP, see Enable DKP Catalog Applications after Installing DKP.

In the same kommander.yaml of the previous section, add the following values to enable DKP Catalog Applications:

CODE

apiVersion: config.kommander.mesosphere.io/v1alpha1
kind: Installation
...
catalog:
  repositories:
    - name: dkp-catalog-applications
      labels:
        kommander.d2iq.io/project-default-catalog-repository: "true"
        kommander.d2iq.io/workspace-default-catalog-repository: "true"
        kommander.d2iq.io/gitapps-gitrepository-type: "dkp"
      path: ./dkp-catalog-applications-v2.8.1.tar.gz

If you only want to enable catalog applications to an existing configuration, add these values to an existing installer configuration file to maintain your Management cluster’s settings.

Use the customized kommander.yaml to install DKP:

CODE

dkp install kommander --installer-config kommander.yaml --kubeconfig=${CLUSTER_NAME}.conf \
--kommander-applications-repository ./application-repositories/kommander-applications-v2.8.1.tar.gz \
--charts-bundle ./application-charts/dkp-kommander-charts-bundle-v2.8.1.tar.gz \
--charts-bundle ./application-charts/dkp-catalog-applications-charts-bundle-v2.8.1.tar.gz

Tips and recommendations

The --kubeconfig=${CLUSTER_NAME}.conf flag ensures that you install Kommander on the correct cluster. For alternatives, see Provide Context for Commands with a kubeconfig File.
Applications can take longer to deploy, and time out the installation. Add the --wait-timeout <time to wait> flag and specify a period of time (for example, 1h) to allocate more time to the deployment of applications.
If the Kommander installation fails, or you wish to reconfigure applications, rerun the install command to retry.

Next Step:

AWS Air-gapped GPU: Verify Install and Log in the UI