mirror of https://github.com/hashicorp/consul
72 lines
2.8 KiB
Markdown
72 lines
2.8 KiB
Markdown
---
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layout: docs
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page_title: API gateway for Kubernetes technical specifications
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description: >-
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Learn about the requirements for installing and using the Consul API gateway for Kubernetes, including required ports, component version minimums, Consul Enterprise limitations, and compatible k8s cloud environments.
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---
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# API gateway for Kubernetes technical specifications
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This topic describes the technical specifications associated with using Consul API gateway.
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## Requirements
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Verify that your environment meets the following requirements prior to using Consul API gateway.
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### Datacenter requirements
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Your datacenter must meet the following requirements prior to configuring the Consul API gateway:
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- HashiCorp Consul Helm chart v1.2.0 and later
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### TCP port requirements
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The following table describes the TCP port requirements for each component of the API gateway.
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| Port | Description | Component |
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| ---- | ----------- | --------- |
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| 20000 | Kubernetes readiness probe | Gateway instance pod |
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| Configurable | Port for scraping Prometheus metrics. Disabled by default. | Gateway controller pod |
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## Consul server deployments
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- Consul Editions supported: CE and Enterprise
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- Supported Consul Server deployment types:
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- Self-Managed
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- HCP Consul
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### Limited Support of some Consul Features
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The following table lists API gateway limitations related to specific Consul features
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| Consul Feature | Limitation |
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| -------------- | ---------- |
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| Routing between datacenters | If you are connecting multiple Consul datacenters to create a federated network, you can route to services in other datacenters through peered connections. Refer to [Route Traffic to Peered Services](/consul/docs/api-gateway/usage/route-to-peered-services) for additional information. |
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## Deployment Environments
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Consul API gateway can be deployed in the following Kubernetes-based environments:
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- Generic Kubernetes
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- AWS Elastic Kubernetes Service (EKS)
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- Google Kubernetes Engine (GKE)
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- Azure Kubernetes Service (AKS)
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## Supported versions of Kubernetes Gateway API specification
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Refer to the [release notes](/consul/docs/release-notes) for your version of Consul.
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## Resource allocations
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The following resources are allocated for each component of the API gateway.
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### Gateway controller pod
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- **CPU**: None. Either the namespace or cluster default is allocated, depending on the Kubernetes cluster configuration.
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- **Memory**: None. Either the namespace or cluster default is allocated, depending on the Kubernetes cluster configuration.
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### Gateway instance pod
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- **CPU**: None. Either the namespace or cluster default is allocated, depending on the Kubernetes cluster configuration.
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- **Memory**: None. Either the namespace or cluster default is allocated, depending on the Kubernetes cluster configuration.
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