In deployments for Customer-Controlled Regions, you (the customer) manage the Kubernetes environment. It's important that you to understand the Kubernetes version and its compatibility with the software event broker versions that are used in PubSub+ Cloud. Depending on the version of the Kubernetes, a minimum version of the event broker service is required.
If you are upgrading your Kubernetes cluster, Solace recommends that you first upgrade your event broker services to ensure compatibility and minimize outage time. For information about upgrading your event broker services, see Software Event Broker Versions and Support in PubSub+ Cloud.
In general, most versions of event broker service are supported on the listed versions of cloud and on-premises deployments of Kubernetes. If a version of Kubernetes is not listed, it is not supported at this time. If there are newer versions of Kubernetes that you require, contact Solace for more information.
The following table shows:
- A minimum broker version is listed where required, otherwise support on the specified version of the Kubernetes provider or distribution is indicated using the following symbols:
—A 
—A gray check mark shows that the broker version has full support but has not been fully tested on the specific Kubernetes release at this time. In addition, there may be known issues or additional work required to deploy event broker services on the Kubernetes cluster. Contact Solace for more information.- Note that if a version for a Kubernetes provider or distribution isn't listed in the table below, there are several reasons that can include:
- The provider or distribution never supported the version (for example, some providers only support the even version numbers of Kubernetes).
- The Kubernetes version has fallen out of support [or reached end-of-life (EOL)] as specified by the provider (see the website for the provider or distribution).
- For all cloud and on-premises deployments of Kubernetes, depending on the Kubernetes version, a minimum broker build is required. The following Kubernetes providers and distributions are supported:
- Alibaba Cloud Container Service for Kubernetes (ACK)
- Amazon Elastic Kubernetes Service (EKS)
- Amazon Elastic Kubernetes Service (EKS) on AWS Outposts
- Anthos on AWS
- Azure Kubernetes Service (AKS)
- Azure Red Hat OpenShift (ARO)
- Canonical Charmed (Controlled Availability) See Caution
- Google Kubernetes Engine (GKE)
- Huawei Cloud Container Engine (CCE)
- Rancher (RKE1)
- RedHat OpenShift
- VMware Tanzu Kubernetes Grid (TKG)
Kubernetes Provider and Distributions
As detailed in Kubernetes Upgrades in PubSub+ Cloud, validation and testing occur on different schedules based on which group the provider or distribution falls into. The following tables outline Solace's support for providers and distributions in each group:
Periodically, support for Kubernetes distributions/providers and or versions of distributions/providers are removed. See Deprecation of Support for Kubernetes Versions.
Each event broker service release has a minimum required version based on the Kubernetes version it is being deployed on. The minimum supported broker version is listed under the support check mark the corresponding Kubernetes version.
Primary Kubernetes Distributions
| Cloud Provider or On-Premises Distribution |
Kubernetes Version | Software Event Broker Version in PubSub+ Cloud | |||||
|---|---|---|---|---|---|---|---|
| 10.0 | 10.5 | 10.6 | 10.7 | 10.8 | 10.9 | ||
| Amazon Elastic Kubernetes Service (EKS) | 1.27 |
10.0.1.107+ |
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| 1.28 |
10.0.1.107+ |
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| 1.29 |
10.0.1.107+ |
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| 1.30 |
10.0.1.107+ |
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| Azure Kubernetes Service (AKS) | 1.27 1 |
10.0.1.107+ |
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| 1.28 |
10.0.1.107+ |
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| 1.29 |
10.0.1.107+ |
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| 1.30 |
10.0.1.107+ |
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| Google Kubernetes Engine (GKE)
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1.27 |
10.0.1.107+ |
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| 1.28 |
10.0.1.107+ |
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| 1.29 |
10.0.1.107+ |
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| 1.30 |
10.0.1.107+ |
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1—The vendor provides extended support for this Kubernetes version. Customers deploying an extended support version in their Customer-Controlled Region can take advantage of this extended support if you choose too. See the vendor specific documentation for more information:
Other Kubernetes Distributions
| Cloud Provider or On-Premises Distribution |
On-Premises Distribution Version /Kubernetes Version |
Software Event Broker Version in PubSub+ Cloud | |||||
|---|---|---|---|---|---|---|---|
| 10.0 | 10.5 | 10.6 | 10.7 | 10.8 | 10.9 | ||
| Cloud | |||||||
| Alibaba Cloud Container Service for Kubernetes (ACK) | 1.26 |
10.0.1.107+ |
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| 1.28 |
10.0.1.107+ |
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| 1.30 |
10.0.1.107+ |
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| Anthos GKE in AWS (Controlled Availability) See Caution | 1.27 |
10.0.1.107+ |
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| 1.28 |
10.0.1.107+ |
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| 1.29 |
10.0.1.107+ |
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| Azure Red Hat Open Shift (ARO) | 4.12/1.25 |
10.0.1.107+ |
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| 4.13/1.26 |
10.0.1.107+ |
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| 4.14/1.27 |
10.0.1.107+ |
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| 4.15/1.28 |
10.0.1.107+ |
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| Huawei Cloud Container Engine (CCE) | 1.25 |
10.0.1.107+ |
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| 1.28 |
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10.6.1.113-19+ |
10.7.1.77-11+ |
10.8.1.140-5+ |
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| 1.29 |
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10.6.1.113-19+ |
10.7.1.77-11+ |
10.8.1.140-5+ |
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| On-Premises | |||||||
| EKS on AWS Outposts (Controlled Availability) See Caution | 1.25 |
10.0.1.107+ |
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| 1.26 |
10.0.1.107+ |
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| 1.27 |
10.0.1.107+ |
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| Canonical Charmed (Controlled Availability) See Caution | 1.25 |
10.0.1.107+ |
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| 1.26 |
10.0.1.107+ |
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| 1.27 |
10.0.1.107+ |
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| 1.28 |
10.0.1.107+ |
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| 1.29 |
10.0.1.107+ |
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Rancher product releases support varying Kubernetes versions. It is your responsibility to ensure the Rancher release you intend to use supports the Kubernetes cluster you are deploying to. See the Support Matrix for the specific version of Rancher you are using in the Rancher documentation for more information. |
1.27 |
10.0.1.107+ |
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1.28 |
10.0.1.107+ |
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| 1.29 |
10.0.1.107+ |
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| 1.30 |
10.0.1.107+ |
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| Red Hat OpenShift (OCP) | 4.13/1.26 |
10.0.1.107+ |
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| 4.14/1.27 |
10.0.1.107+ |
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| 4.15/1.28 |
10.0.1.107+ |
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| 4.16/1.29 |
10.0.1.107+ |
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VMware Tanzu Kubernetes Grid (TKG) VMware TKG product releases support varying Kubernetes versions. It is your responsibility to ensure the TKG release you intend to use supports the Kubernetes cluster you are deploying to. See the VMware Product Lifecycle Matrix and the release specific VMware Tanzu Kubernetes Grid Release Notes in the VMware documentation for more information.
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2.3.0/1.26 |
10.0.1.107+ |
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| 2.4.x/1.27 |
10.0.1.107+ |
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Kubernetes distributions/providers in Controlled Availability may require additional time, tuning, and configuration for deployments. Solace fully supports these newer Kubernetes deployments.
For information about the list of broker versions available in PubSub+ Cloud, see Software Event Broker Versions and Support in PubSub+ Cloud.