---
title: "Install and upgrade"
description: "Connect Kubernetes clusters to Calico Cloud and upgrade them — the entry point for the Calico Cloud onboarding flow."
product: "Calico Cloud"
version: "v23.0.1"
section: "Install and upgrade"
canonical_url: "https://docs.tigera.io/calico-cloud/get-started/"
---

# Install and upgrade

Requirements and guides for connecting your Kubernetes cluster to Calico Cloud.

## Before you begin

##### [Calico Cloud architecture](https://docs.tigera.io/calico-cloud/get-started/cc-arch-diagram.md)

[Architecture overview of Calico Cloud — components that run in the connected cluster and the SaaS-side services they communicate with.](https://docs.tigera.io/calico-cloud/get-started/cc-arch-diagram.md)

##### [What happens when you connect a cluster to Calico Cloud](https://docs.tigera.io/calico-cloud/get-started/connect-cluster.md)

[What happens when you connect a Kubernetes cluster to Calico Cloud — what is installed, what data leaves the cluster, and what changes in the cluster.](https://docs.tigera.io/calico-cloud/get-started/connect-cluster.md)

##### [System requirements](https://docs.tigera.io/calico-cloud/get-started/system-requirements.md)

[Cluster, platform, and version requirements a Kubernetes cluster must meet before it can connect to Calico Cloud.](https://docs.tigera.io/calico-cloud/get-started/system-requirements.md)

##### [Prepare your cluster for Calico Cloud](https://docs.tigera.io/calico-cloud/get-started/prepare-cluster.md)

[Prepare a Kubernetes cluster for connection to Calico Cloud — pre-flight checks, RBAC, and image-pull configuration.](https://docs.tigera.io/calico-cloud/get-started/prepare-cluster.md)

##### [Limitations and known issues for Windows nodes](https://docs.tigera.io/calico-cloud/get-started/windows-limitations.md)

[Known limitations for Calico Cloud on Windows worker nodes that you should review before planning a connection.](https://docs.tigera.io/calico-cloud/get-started/windows-limitations.md)

## Connect your cluster

##### [Install Calico Cloud](https://docs.tigera.io/calico-cloud/get-started/install-cluster.md)

[Connect a Kubernetes cluster to Calico Cloud using the standard install command from the management UI.](https://docs.tigera.io/calico-cloud/get-started/install-cluster.md)

##### [Set up a private registry](https://docs.tigera.io/calico-cloud/get-started/setup-private-registry.md)

[Mirror Calico Cloud container images into a private registry so air-gapped clusters can install without reaching the public registry.](https://docs.tigera.io/calico-cloud/get-started/setup-private-registry.md)

##### [Install using a private registry](https://docs.tigera.io/calico-cloud/get-started/install-private-registry.md)

[Connect a Kubernetes cluster to Calico Cloud when its container images must be pulled from a private registry.](https://docs.tigera.io/calico-cloud/get-started/install-private-registry.md)

##### [Install Calico Cloud as part of an automated workflow](https://docs.tigera.io/calico-cloud/get-started/install-automated.md)

[Connect a Kubernetes cluster to Calico Cloud as part of an automated CI or provisioning workflow rather than the interactive UI flow.](https://docs.tigera.io/calico-cloud/get-started/install-automated.md)

##### [Prepare your cluster for Calico Cloud](https://docs.tigera.io/calico-cloud/get-started/prepare-cluster.md)

[Prepare a Kubernetes cluster for connection to Calico Cloud — pre-flight checks, RBAC, and image-pull configuration.](https://docs.tigera.io/calico-cloud/get-started/prepare-cluster.md)

## Troubleshooting

##### [Tigera Operator troubleshooting checklist](https://docs.tigera.io/calico-cloud/get-started/operator-checklist.md)

[Troubleshoot the Tigera Operator on Calico Cloud connected clusters when the standard support checklist is not enough.](https://docs.tigera.io/calico-cloud/get-started/operator-checklist.md)

##### [Troubleshooting checklist](https://docs.tigera.io/calico-cloud/get-started/checklist.md)

[Gather information and run pre-flight checks before opening a Calico Cloud support ticket so triage moves quickly.](https://docs.tigera.io/calico-cloud/get-started/checklist.md)

## Upgrade

##### [Upgrade Calico Cloud](https://docs.tigera.io/calico-cloud/get-started/upgrade-cluster.md)

[Upgrade a connected Calico Cloud cluster to the latest released version of the in-cluster components.](https://docs.tigera.io/calico-cloud/get-started/upgrade-cluster.md)