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Microsoft AKS

Microsoft Azure Kubernetes Service (Microsoft AKS) is a managed container service to run and scale Kubernetes applications in the cloud or on-premises.

Camunda 8 Self-Managed can be deployed on AKS like any Kubernetes cluster using Helm charts. However, there are a few pitfalls to avoid as described below.

AKS cluster specification​

Generally speaking, the AKS cluster specification depends on your needs and workloads. Here is a recommended start to run Camunda 8:

  • Instance type: Standard_D4as_v4 (4 vCPUs, 16 GiB Memory)
  • Number of nodes: 4
  • Volume type: Premium SSD/Premium SSD v2

Pitfalls to avoid​

For general deployment pitfalls, visit the deployment troubleshooting guide.

Volume performance​

To have proper performance in Camunda 8, the persistent volumes attached to Zeebe should have around 1,000-3,000 IOPS. The Premium SSD v2 volumes deliver a consistent baseline IOPS performance of 3,000 IOPS. However, it has some limitations, including lack of support in Azure Backup. Therefore, using Premium SSD could be the only option in many cases. The Premium SSD volume could also be used, but its performance varies based on volume size.

It's recommended to use Premium SSD v2 volume type, but only if Premium SSD type is available; persistent volumes should use Premium SSD volumes of at least 256 GB (P15).

Zeebe Ingress​

Azure Application Gateway Ingress cannot be used as an Ingress for Zeebe/Zeebe Gateway because Zeebe requires an Ingress controller that supports gRPC. You should use any other Ingress controller that supports gRPC, like the ingress-nginx controller.

Currently, the Azure Application Gateway Ingress controller doesn't support gRPC. For more details, follow the upstream GitHub issue about gRPC/HTTP2 support.