Installing kro

Install kro on your Kubernetes cluster using Helm.

Prerequisites

• Helm 3.x installed
• kubectl configured to access your cluster

Installation

Quick Start

Install the latest version:

helm install kro oci://registry.k8s.io/kro/charts/kro \
  --namespace kro \
  --create-namespace

Pinned Version

Install a specific version for reproducible deployments:

# Set the version you want to install
export KRO_VERSION=0.6.2

# Install kro
helm install kro oci://registry.k8s.io/kro/charts/kro \
  --namespace kro \
  --create-namespace \
  --version=${KRO_VERSION}

Or automatically use the latest release:

# Fetch latest release version
export KRO_VERSION=$(curl -sL \
    https://api.github.com/repos/kubernetes-sigs/kro/releases/latest | \
    jq -r '.tag_name | ltrimstr("v")')

# Verify version
echo $KRO_VERSION

# Install kro
helm install kro oci://registry.k8s.io/kro/charts/kro \
  --namespace kro \
  --create-namespace \
  --version=${KRO_VERSION}

Verify Installation

Check the Helm release:

helm list -n kro

Expected output:

NAME  NAMESPACE  REVISION  STATUS
kro   kro        1         deployed

Check the kro pod is running:

kubectl get pods -n kro

Expected output:

NAME                   READY   STATUS    RESTARTS   AGE
kro-7d98bc6f46-jvjl5   1/1     Running   0          30s

Upgrade

Latest Version

helm upgrade kro oci://registry.k8s.io/kro/charts/kro \
  --namespace kro

Specific Version

export KRO_VERSION=0.6.2

helm upgrade kro oci://registry.k8s.io/kro/charts/kro \
  --namespace kro \
  --version=${KRO_VERSION}

info

Helm does not update CRDs automatically. If a new version includes CRD changes, you may need to manually apply them. Check the release notes for CRD updates.

Uninstall

helm uninstall kro -n kro

info

This removes the kro controller but preserves your RGDs and deployed instances. To fully clean up, manually delete instances and RGDs before uninstalling.