Serverless

Kubernetes API

The Humanitec Platform Orchestrator currently focuses exclusively on containerized workloads running on Kubernetes.

Generally, to deploy workloads, the Orchestrator either needs a Kubernetes API server endpoint to deploy Kubernetes manifests directly (in Direct Cluster Mode), or it pre-generates Kubernetes manifests to be finalized on the cluster (in any of the Humanitec Operator modes).

Either way, a Kubernetes API is required to process the resulting manifests.

Serverless

“Serverless” is an umbrella term for managed, usually cloud-based services abstracting away some of the underlying infrastructure properties to provide a simplified experience and management. Many “serverless” offerings exist for running containerized workloads. However, even if some of them may be based on Kubernetes themselves underneath, they offer their own way of deploying and managing workloads, and in particular, do not provide a Kubernetes API by design.

Find the list of supported and unsupported services below.

Supported services

Beyond what is covered in Kubernetes, the Platform Orchestrator supports deploying workloads into the services shown below. Those are managed Kubernetes offerings backed by a serverless technology.

Configure your workload for AKS virtual nodes

This workload Resource Definition shows how to set the required properties as per the AKS Virtual Nodes documentation.

aci-workload.yaml (view on GitHub) :

# Add tolerations and nodeSelector to the Workload to make it runnable AKS virtual nodes
# served through Azure Container Instances (ACI).
# See https://learn.microsoft.com/en-us/azure/aks/virtual-nodes-cli
apiVersion: entity.humanitec.io/v1b1
kind: Definition
metadata:
  id: aci-workload
entity:
  name: aci-workload
  type: workload
  driver_type: humanitec/template
  driver_inputs:
    values:
      templates:
        outputs: |
          update: 
          - op: add
            path: /spec/tolerations
            value:
            - key: "virtual-kubelet.io/provider"
              operator: "Exists"
            - key: "azure.com/aci"
              effect: "NoSchedule"
          - op: add
            path: /spec/nodeSelector
            value:
              kubernetes.io/role: agent
              beta.kubernetes.io/os: linux
              type: virtual-kubelet
  criteria: []

Unsupported services

The Platform Orchestrator currently does not support deploying workloads into these services:

Namespaces