c12s-kubespray/docs/cri-o.md
2019-12-04 07:22:57 -08:00

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# CRI-O
[CRI-O] is a lightweight container runtime for Kubernetes.
Kubespray supports basic functionality for using CRI-O as the default container runtime in a cluster.
* Kubernetes supports CRI-O on v1.11.1 or later.
* Helm and other tools may not function as normal due to dependency on Docker.
* `scale.yml` and `upgrade-cluster.yml` are not supported on clusters using CRI-O.
_To use CRI-O instead of Docker, set the following variables:_
## all.yml
```yaml
download_container: false
skip_downloads: false
```
## k8s-cluster.yml
```yaml
etcd_deployment_type: host
kubelet_deployment_type: host
container_manager: crio
```
[CRI-O]: https://cri-o.io/