c12s-kubespray/docs/cri-o.md
Hans Feldt 544aa00c17
install etcdctl to host when etcd deployment type is kubeadm (#6857)
* create a wrapper script with pki options
* supports all kubespray managed container engines

Co-authored-by: Hans Feldt <hafe@users.noreply.github.com>
2020-11-04 00:20:04 -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.
* etcd: configure either kubeadm managed etcd or host deployment
_To use the CRI-O container runtime set the following variables:_
## all.yml
```yaml
download_container: false
skip_downloads: false
etcd_kubeadm_enabled: true
```
## k8s-cluster.yml
```yaml
container_manager: crio
```
## etcd.yml
```yaml
etcd_deployment_type: host # optionally and mutually exclusive with etcd_kubeadm_enabled
```
[CRI-O]: https://cri-o.io/