Requirements

Coder is deployed onto Kubernetes clusters, and we recommend the following resource allocation minimums to ensure quality performance.

For basic control services, allocate at least 2 CPU cores, 4 GB of RAM, and 20 GB of storage.

For each active developer, please allocate an additional CPU core, 1 GB of RAM, and 10 GB of storage on top of the resources allocated for basic control services.

We recommend the following throughput:

• Read: 3000 IOPS at 50 MB/s
• Write: 3000 IOPS at 50 MB/s

Enabled Extensions

You must enable the following extensions on your K8 cluster (check whether you have these extensions enabled by running kubectl get apiservices):

• apps/v1
• rbac.authorization.k8s.io/v1
• metrics.k8s.io
• storage.k8s.io/v1
• networking.k8s.io/v1
• extensions/v1beta1

Browsers

Use an up-to-date browser to ensure that you can use all of Coder's features. We currently require the following versions or newer:

• Apple Safari 12.1
• Google Chrome 66
• Mozilla Firefox 57
• Microsoft Edge 79

If you're using Remote IDEs, allow pop-ups; Coder launches the Remote IDE in a pop-up window.

Network Policies

Coder uses Kubernetes NetworkPolicies to enforce network segmentation and tenant isolation within your cluster.

Coder's network isolation policy blocks all ingress traffic to workspaces except traffic from the control plane (this ensures that you can audit all traffic). However, the control plane does not specify egress rules; by default, it allows outbound traffic. However, you can still enforce a more specific network policy.

Container network interface (CNI) plugins implement network segmentation and tenant isolation in the Kubernetes cluster. They enforce network boundaries between pods, preventing users from accessing other workspaces.

If your container network interface (CNI) plugin does not support NetworkPolicy enforcement, traffic between workspaces, and other containerized workloads within the same cluster will be permitted to communicate without restriction. Consider testing your container networking after installing Coder to ensure that the behavior is as expected.

If you're not sure which CNI plugin, we suggest Calico.

Licenses

The use of Coder deployments requires a license that's emailed to you.

Restrictions

Deployments using the free trial of Coder:

• Must be able to reach and use an outbound internet connection (at minimum, your deployment must be able to access licensor.coder.com)
• Cannot be deployed in an air-gapped network
• Must use Coder v1.10.0 or later

The above requirements do not apply to potential customers engaged in our evaluation program.