Pivotal Container Service v1.1

Upgrading PKS with NSX-T

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This topic explains how to upgrade the Pivotal Container Service (PKS) tile for environments using vSphere with NSX-T.

PKS v1.1.5 supports NSX-T 2.2 and vSphere 6.5 U2. For details, see the VMware Product Interoperability Matrix for PKS in the VMware documentation.

We recommend that you upgrade to PKS v1.1.5 and NSX-T 2.2 to take advantage of key features and important architectural changes. For more information, see NSX-T Architectural Changes in the PKS v1.1.5 release notes.

Note: When you upgrade PKS on vSphere with NSX-T, workloads in your Kubernetes cluster are unavailable while the NSX Edge nodes run the upgrade. Configure NSX Edge for high availability using Active/Standby mode to avoid workload downtime. For more information, see the Configure NSX Edge for High Availability (HA) section of Preparing NSX-T Before Deploying PKS.

Prepare to Upgrade

Before you begin upgrading the PKS tile, follow the steps below:

  1. Review the Release Notes for the version you are upgrading to.
  2. Verify the health of your Kubernetes environment by following the steps below:
    1. To verify that all nodes are in a ready state, run kubectl get nodes for all Kubernetes contexts.
    2. To verify that all pods are running, run kubectl get pods --all-namespaces for all Kubernetes contexts.
    3. To verify that all the processes are in a running state, run bosh -d MY-DEPLOYMENT instances --ps for each deployment, replacing MY-DEPLOYMENT with the deployment name. Your PKS deployment name begins with pivotal-container-service and includes a BOSH-generated hash.
  3. Make sure there are no issues with vSphere by following the steps below:
    1. Verify that datastores have enough space.
    2. Verify that hosts have enough memory.
    3. Verify that there are no alarms.
    4. Verify that hosts are in a good state.
  4. (Optional) Back up the environment using the procedures in the following topics:

Upgrade the PKS Tile

To upgrade PKS, you follow the same Ops Manager process that you use to install the tile for the first time. Your configuration settings migrate to the new version automatically. Follow the steps below to perform an upgrade.

  1. Review the Release Notes for the version you are upgrading to.

  2. Download the desired version of the product from Pivotal Network.

  3. Navigate to the Ops Manager Installation Dashboard and click Import a Product.

  4. Browse to the PKS product file and select it. Uploading the file takes several minutes. Upload PKS product file to Ops Manager

  5. Under the Import a Product button, click + next to Pivotal Container Service. This adds the tile to your staging area.

    Import the PKS product file

  6. Ops Manager adds the PKS tile to your staging area.

  7. (Optional) If the stemcell is not current, click the Missing stemcell link and follow the steps below: Verify successful import of PKS

    1. On the Stemcell Library page, click Import Stemcell. Import stemcell
    2. Select the PKS product and click Apply Stemcell to Products. Apply stemcell to PKS
    3. Verify that Ops Manager successfully applied the stemcell. Verify stemcell assignment
    4. Select the Installation Dashboard link to return to the Installation Dashboard. Verify status is green

Increase the Kubernetes Worker Node VM Size

The default Kubernetes worker node VM size provides insufficient disk space for PKS v1.1.5 or later on vSphere with NSX-T.

Note: If you do not increase the size of the Kubernetes worker node VM before you upgrade, the VM can run out of ephemeral disk space and cause the upgrade to fail.

Follow the steps below to increase the Kubernetes worker node VM size:

  1. Navigate to the Ops Manager Installation Dashboard.

  2. Click the Pivotal Container Service tile.

  3. Click Plan 1.

  4. Under Worker VM Type, select a VM type with a minimum disk size of 16 GB.

  5. (Optional) If you have additional plans configured, repeat this procedure for each plan.

Verify NSX-T Manager CA Certificate Settings

Follow the steps below:

  1. Navigate to the Ops Manager Installation Dashboard.

  2. Click the Pivotal Container Service tile.

  3. Click Networking.

  4. Under NSX Manager CA Cert, choose one of the following options:

    • Confirm that you have a valid NSX-T Manager CA certificate.
    • Select Disable SSL certificate verification.

      Note: You cannot choose both options. If you provide an NSX Manager CA certificate and also disable SSL certificate verification, the PKS upgrade fails.

Apply Changes to the PKS Tile

Return to the Installation Dashboard and do one of the following:

  • Apply Changes: Under Pending Changes, click Apply Changes. Apply changes and upgrade
  • Review Pending Changes [BETA]:
    1. Click Review Pending Changes.
    2. Click Pivotal Container Service.
    3. Click Apply Changes.

Verify the Upgrade

After you apply changes to the PKS tile and the upgrade is complete, verify that your Kubernetes environment is healthy and confirm that NCP is running on the master node VM.

To verify the health of your Kubernetes environment and NCP, see Verifying Deployment Health.

(Optional) Upgrade NSX-T

Upgrading to NSX-T from 2.1 to 2.2 is optional but strongly recommended. Support for NSX-T 2.1 will be removed in a future PKS release.

Follow the steps below to upgrade NSX-T:

  1. Log in to the NSX Manager UI and navigate to System > Utilities > Upgrade.

  2. Click Proceed to Upgrade and follow the instructions. The NSX-T Upgrade wizard walks you through the process of upgrading from NSX-T 2.1 to NSX-T 2.2. NSX-T Upgrade Wizard

For more information, see Upgrading NSX-T in the VMware documentation.

(Optional) Upgrade vSphere

Upgrade vSphere from version 6.5 or 6.5 U1 to 6.5 U2.

For more information, see Upgrading vSphere in an NSX Environment in the VMware documentation.

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