DKP 2.2 Release Notes

D2iQ® Kommander® (DKP®) version 2.2 was released on April 8, 2022.

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Note: In DKP 2.2 the Konvoy and Kommander binaries have been merged into a single binary, which you can find by selecting the DKP button above.

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NOTE: You must be a registered user and logged on to the support portal to download Kommander. New customers must contact their sales representative or sales@d2iq.com before attempting to download or install this product.

Release summary

Welcome to D2iQ Kubernetes Platform (DKP) 2.2! This release provides new features and enhancements to improve the user experience, fix reported issues, integrate changes from previous releases, and maintain compatibility and support for other packages used in Konvoy. In this release, we are beginning the process of combining our two flagship products, Konvoy and Kommander, into a single DKP product with two service level options: DKP Enterprise for multi-cluster environments, and DKP Essential for single-cluster environments.

For this release, we are maintaining the documentation sets for individual platform components Konvoy and Kommander, while publishing some combined DKP documentation for processes, such as Upgrading DKP version.

DKP 2.2 supports Kubernetes versions between 1.21.0 and 1.22.x. Any cluster you want to attach using DKP 2.2 must be running a Kubernetes version in this range.

Supported versions

New features and capabilities

The following features and capabilities are new for Version 2.2.

Integrated DKP Upgrade

You can now upgrade Konvoy and Kommander as a single fluid process using a combination of the DKP CLI and the UI to upgrade your environment.

For more information, see DKP Upgrade

Integration with VMware vSphere

You can use CAPI vSphere Provider while provisioning a DKP cluster on vSphere, which allows you to manage bootstrapping of VMs on a DKP cluster. This gives you improved productivity and speed of deploying VMs on DKP in a VMWare environment, including FIPS builds and air-gapped deployments.

Zero downtime upgrades for air-gapped deployments

You can now use your laptop or USB drive to transfer pre-created air-gapped bundles, including OS dependencies and DKP binaries into your air-gapped environment with no external connectivity. This improves the availability of the DKP air-gapped deployment and productivity of your IT operations team.

For more information, see the air-gapped bundle documentation in the choose infrastructure topics.

Unified DKP user interfaces

The unified DKP user interface provides a smooth experience independent of where you start your journey. Both DKP Essential and DKP Enterprise customers will have similar experiences in the User Interface, with DKP Enterprise customers gaining access to additional features and benefits simply by entering their DKP Enterprise license key.

Kaptain AI/ML, D2iQ’s AI/ML offering

For better integration with DKP 2.2, you can launch Kaptain as a catalog application. It also supports other platforms such as Amazon AWS EKS and Microsoft Azure AKS. Kaptain extends D2iQ’s ability to support Kubernetes platforms beyond DKP. It further enables an organization to develop, deploy and run entire ML workloads in production, at scale, with consistency and reliability.

DKP Insights

This new predictive analytics tool provides greater support productivity, speed, and reduced costs. The DKP Insights Engine collects events and metrics on the Attached cluster, and uses rule-based heuristics on potential problems of varying criticality, so they can be quickly identified and resolved. These Insights are then forwarded and displayed in the DKP Insights Dashboard, where it assists you with routine tasks such as:

• Resolving common issues
• Monitoring resource usage
• Checking security issues
• Verifying workloads and clusters follow best practices

Deprecations

Flag default changes

For more information on using FIPS with Konvoy, see FIPS 140-2 Compliance The default value for flag --with-aws-bootstrap-credentials will be changing from true to false in version v2.3.0.

Changes in behavior

A “create first” update strategy first creates a new machine, then deletes the old one. While this strategy works when machine inventory can grow on demand, it does not work if there is a fixed number of machines. Most Preprovisioned clusters have a fixed number of machines. To enable updates for Preprovisioned clusters, DKP uses the “delete first” update strategy, which first deletes an old machine, then creates a new one.

New clusters use the “delete first” strategy by default. Existing clusters are switched to the “delete first” strategy whenever those machines are updated with update controlplane and update nodepool.

Component updates

When upgrading to this release, the following services and service components are upgraded to the listed version:

Known issues

Overriding configuration for kube-oidc-proxy and traefik-forward-auth

Configuration overrides for kube-oidc-proxy and traefik-forward-auth platform applications must be manually applied for each cluster that requires custom configuration on top of the default configuration. Passing in the configuration via the CLI installer will not work. Instead, you must edit the cluster’s custom configuration in the appropriate FederatedConfigMap's spec.overrides list. For kube-oidc-proxy, the FederatedConfigMap is called kube-oidc-proxy-overrides, and for traefik-forward-auth, it is called traefik-forward-auth-kommander-overrides. See below for an example to override the kube-oidc-proxy configuration to use a custom domain mycluster.domain.dom:

kubectl edit federatedconfigmap kube-oidc-proxy-overrides -n kommander

Modify oidc.issuerUrl under the values.yaml key to override it for the host-cluster cluster:

apiVersion: types.kubefed.io/v1beta1
kind: FederatedConfigMap
metadata:
  name: kube-oidc-proxy-overrides
  namespace: kommander
[...]
spec:
  overrides:
  - clusterName: host-cluster
    clusterOverrides:
    - op: add
      path: /data
      value:
        values.yaml: |
          initContainers: []
          oidc:
            caPEM: |
              <redacted>
            caSecretName: ""
            clientId: kube-apiserver
            clientSecret:
              value: <redacted>
            groupsClaim: groups
            groupsPrefix: 'oidc:'
            issuerUrl: mycluster.domain.dom/dex
            usernameClaim: email
[...]

Spark operator failure workaround

Upgrading catalog applications using Spark Operator can fail when running dkp upgrade catalogapp due to the operator not starting. If this occurs, use the following workaround:

1. Run the dkp upgrade catalogapp command.

2. Monitor the failure of spark-operator.

3. Get the workspace namespace name and export it.

   export WORKSPACE_NAMESPACE=<SPARK_OPERATOR_WS_NS>
   

4. Export the spark-operator AppDeployment name.

   # e.g., this value can be spark-operator-1
   # if your spark-operator AppDeployment name doesn't contain "spark", you must adjust the grep command accordingly
   export SPARK_APPD_NAME=$(kubectl get appdeployment -n $WORKSPACE_NAMESPACE -o jsonpath='{range .items[*]} {.metadata.name}{"\n"}{end}' | grep spark)
   

5. Export the service account name of your spark-operator.

   # if your provided values override, please look it up in that ConfigMap
   # this is the default value defined in spark-operator-1.1.6-d2iq-defaults ConfigMap
   export SPARK_OPERATOR_SERVICE_ACCOUNT=spark-operator-service-account
   

6. Run the following command.

   kubectl apply -f - <<EOF
   ---
   apiVersion: rbac.authorization.k8s.io/v1
   kind: ClusterRole
   metadata:
     name: spark-operator
     annotations:
       "helm.sh/hook": pre-install, pre-upgrade
       "helm.sh/hook-delete-policy": hook-failed, before-hook-creation
     labels:
       app.kubernetes.io/instance: spark-operator
       app.kubernetes.io/managed-by: Helm
       app.kubernetes.io/name: spark-operator
       app.kubernetes.io/version: v1beta2-1.3.3-3.1.1
       helm.sh/chart: spark-operator-1.1.17
       helm.toolkit.fluxcd.io/name: $SPARK_APPD_NAME
       helm.toolkit.fluxcd.io/namespace: $WORKSPACE_NAMESPACE
   rules:
   - apiGroups:
     - ""
     resources:
     - pods
     verbs:
     - "*"
   - apiGroups:
     - ""
     resources:
     - services
     - configmaps
     - secrets
     verbs:
     - create
     - get
     - delete
     - update
   - apiGroups:
     - extensions
     - networking.k8s.io
     resources:
     - ingresses
     verbs:
     - create
     - get
     - delete
   - apiGroups:
     - ""
     resources:
     - nodes
     verbs:
     - get
   - apiGroups:
     - ""
     resources:
     - events
     verbs:
     - create
     - update
     - patch
   - apiGroups:
     - ""
     resources:
     - resourcequotas
     verbs:
     - get
     - list
     - watch
   - apiGroups:
     - apiextensions.k8s.io
     resources:
     - customresourcedefinitions
     verbs:
     - create
     - get
     - update
     - delete
   - apiGroups:
     - admissionregistration.k8s.io
     resources:
     - mutatingwebhookconfigurations
     - validatingwebhookconfigurations
     verbs:
     - create
     - get
     - update
     - delete
   - apiGroups:
     - sparkoperator.k8s.io
     resources:
     - sparkapplications
     - sparkapplications/status
     - scheduledsparkapplications
     - scheduledsparkapplications/status
     verbs:
     - "*"
   - apiGroups:
     - batch
     resources:
     - jobs
     verbs:
     - delete
   ---
   apiVersion: rbac.authorization.k8s.io/v1
   kind: ClusterRoleBinding
   metadata:
     name: spark-operator
     annotations:
       "helm.sh/hook": pre-install, pre-upgrade
       "helm.sh/hook-delete-policy": hook-failed, before-hook-creation
     labels:
       app.kubernetes.io/instance: spark-operator
       app.kubernetes.io/managed-by: Helm
       app.kubernetes.io/name: spark-operator
       app.kubernetes.io/version: v1beta2-1.3.3-3.1.1
       helm.sh/chart: spark-operator-1.1.17
       helm.toolkit.fluxcd.io/name: $SPARK_APPD_NAME
       helm.toolkit.fluxcd.io/namespace: $WORKSPACE_NAMESPACE
   subjects:
   - kind: ServiceAccount
     name: $SPARK_OPERATOR_SERVICE_ACCOUNT
     namespace: $WORKSPACE_NAMESPACE
   roleRef:
     kind: ClusterRole
     name: spark-operator
     apiGroup: rbac.authorization.k8s.io
   ---
   apiVersion: v1
   kind: ServiceAccount
   metadata:
     annotations:
       helm.sh/hook: pre-install, pre-upgrade
       helm.sh/hook-delete-policy: hook-failed
     labels:
       app.kubernetes.io/instance: spark-operator
       app.kubernetes.io/managed-by: Helm
       app.kubernetes.io/name: spark-operator
       app.kubernetes.io/version: v1beta2-1.3.3-3.1.1
       helm.sh/chart: spark-operator-1.1.17
       helm.toolkit.fluxcd.io/name: $SPARK_APPD_NAME
       helm.toolkit.fluxcd.io/namespace: $WORKSPACE_NAMESPACE
     name: $SPARK_OPERATOR_SERVICE_ACCOUNT
     namespace: $WORKSPACE_NAMESPACE
   EOF
   

7. If you want to force a pod recreation, you can delete the old pod in CrashLoopBackoff by running:

   # spark-operator is the default value
   # if you override the HelmRelease name in your override configmap, use that value in the following command
   export SPARK_OPERATOR_RELEASE_NAME=spark-operator
   # only one instance of spark operator should be deployed per cluster
   kubectl delete pod -n $WORKSPACE_NAMESPACE $(kubectl get pod -l app.kubernetes.io/name=$SPARK_OPERATOR_RELEASE_NAME -n $WORKSPACE_NAMESPACE -o jsonpath='{range .items[0]}{.metadata.name}')
   

Minio Disk insufficient space when upgrading

When upgrading DKP from v2.1.x to v2.2.x, the upgrade can fail due to insufficient space on the MinIO Disk. To avoid this issue, we recommend that you disable the fluent-bit Platform Application before upgrading.

Additional resources

For more information about working with native Kubernetes, see the Kubernetes documentation.