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Overview

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Once you’ve deployed a Managed Kubernetes Cluster, you’ll need to configure the following:

1. Create a Kubernetes Namespace

2. Kubernetes Secret

3. Kubernetes Storage Class

4. Kubernetes Persistent Volumes

Create a Kubernetes Namespace

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Kubernetes lets you create multiple virtual clusters called Namespaces on a single physical cluster. Namespaces let you distribute your cluster resources across multiple users by creating resource quotas. Kubernetes Namespace – acts as a workspace with optional quotas and limits for each pod (containers). Creating a Namespace lets you support environments with multiple users (10 or more users) who are spread across many teams, projects, or regions. Namespaces provide a scope for names so that you can add unique resource-names within a Namespace. You’ll need to separately add these resource-names to each Namespace as these cannot be added on a global level.

You cannot nest Namespaces inside one another and you can have only one Kubernetes resource for a Namespace. You don’t have to create multiple namespaces for segregating slightly varying resources. Example: Different versions of the software within the same Namespace.
In such cases, you can add labels for various versions to differentiate between your resources.

To create a Namespace:

1. Login to your HyperCloud™ Platform (HCP) account.

2. Click Service Orchestration and navigate to Containers > Click open your provisioned Kubernetes Cluster.

3. Click Action > Click New Namespace.

4. Enter a Name for your Namespace in the New Namespace dialog.

5. Click Save.

Kubernetes Secret

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Kubernetes Secret lets you store and manage your passwords, OAuth tokens, and SSH Keys. It is recommended that you store your credentials in a Secret than defining it in a Pod or a container image. Your Secret credentials are hidden configurations and can be referenced by containers during runtime.

To create a Kubernetes Secret on your HCP portal:

1. Login to your HCP Portal account.

2. Click Service Orchestration and navigate to Containers > Click open your provisioned Kubernetes Cluster > Click Action > Click New Secret.

3. Enter these details in the New Secret dialog:

   1. Enter a Name for your Kubernetes Secret.

   2. From the Namespace drop-down list, select a namespace for which you want to create the Secret.

   3. Select the Secret Type from the drop-down list.

      • opaque

      • Transport Layer Security (TLS).

      • Pull an Image from a Private Registry

4. Click Save.

5. To view your newly created Kubernetes Secret:

   1. Click Kubernetes Namespace.

   2. Click open the Namespace where you created the Kubernetes Secret.

Kubernetes Storage Class

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Kubernetes StorageClass lets administrators define classes for the storages they offer. Storage classes can be of the following type:

• Quality-of-service levels

• Backup policies

• Arbitrary policies defined by the cluster administrators.

You can automatically create volumes for a Storage Class using Kubernetes Blueprints.

To create a Storage Class:

1. Login to your HCP portal Account.

2. Click Service Orchestration and navigate to Containers > Click open your provisioned Kubernetes Cluster > Click Action > Click New Storage Class.

3. Enter a Name for your storage Class.

4. Click Save.

Kubernetes Persistent Volumes

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Persistent Volumes (PV) are pre-created volumes that can be attached to containers during runtime. PV is a piece of storage in a Cluster provisioned by an Administrator or dynamically provisioned using storage classes. In other words, a PV is a resource in the cluster and is a volume plugin like Volumes. However, the lifecycle of a PV is independent of any individual Pod using PV. The PersistentVolume subsystem:

• Abstracts the details of how storage is provided and consumed and,

• Provides an API for users and administrators.

To create a new Persistent Volume:

1. Login to your HCP portal account.

2. Click Service Orchestration and navigate to Containers > Click open your provisioned Kubernetes Cluster > Click Action > Click New.

3. Enter these details in the New Persistent Volume dialog:

   1. Enter a name for your Persistent Volume Name.

   2. Select the Storage Class from the drop-down list.

   3. Select the Reclaim Policy from the drop-down list.

   4. Select one of these Disk options to create a PV:

      • New: enter a Volume Size in GB

      • Existing: you’ll need to provide a URI for an existing volume

4. Click Save.