github/kata-containers
1
0
Fork 1
mirror of https://github.com/kata-containers/kata-containers.git synced 2025-07-24 20:21:14 +00:00
Code Issues Projects Releases Wiki Activity

helm: add nodeSelector support to kata-deploy chart

Browse Source 
- Add nodeSelector configuration to values.yaml with empty default
- Update DaemonSet template to conditionally include nodeSelector
- Add documentation and examples for nodeSelector usage in README
- Allows users to restrict kata-containers deployment to specific nodes by labeling them

Signed-off-by: Gus Minto-Cowcher <gus@basecamp-research.com>
This commit is contained in:
Gus Minto-Cowcher 2025-07-11 13:58:21 +01:00 committed by Fabiano Fidêncio
parent 7d709a0759
commit 41d41d51f7
3 changed files with 38 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
tools/packaging/kata-deploy/helm-chart/README.md
View File

@ -125,6 +125,7 @@ All values can be overridden with --set key=value or a custom `-f myvalues.yaml`
| `image.reference` | Fully qualified image reference | `quay.io/kata-containers/kata-deploy` |
| `image.tag` | Tag of the image reference | `""` |
| `k8sDistribution` | Set the k8s distribution to use: `k8s`, `k0s`, `k3s`, `rke2`, `microk8s` | `k8s` |
| `nodeSelector` | Node labels for pod assignment. Allows restricting deployment to specific nodes | `{}` |
| `env.debug` | Enable debugging in the `configuration.toml` | `false` |
| `env.shims` | List of shims to deploy | `clh cloud-hypervisor dragonball fc qemu qemu-coco-dev qemu-runtime-rs qemu-se-runtime-rs qemu-sev qemu-snp qemu-tdx stratovirt qemu-nvidia-gpu qemu-nvidia-gpu-snp qemu-nvidia-gpu-tdx` |
| `env.defaultShim` | The default shim to use if none specified | `qemu` |
@ -148,6 +149,32 @@ $ helm install kata-deploy \
"${CHART}" --version "${VERSION}"
```
## Example: Deploy only to specific nodes using `nodeSelector`
```sh
# First, label the nodes where you want kata-containers to be installed
$ kubectl label nodes worker-node-1 kata-containers=enabled
$ kubectl label nodes worker-node-2 kata-containers=enabled
# Then install the chart with `nodeSelector`
$ helm install kata-deploy \
--set nodeSelector.kata-containers="enabled" \
"${CHART}" --version "${VERSION}"
```
You can also use a values file:
```yaml
# values.yaml
nodeSelector:
kata-containers: "enabled"
node-type: "worker"
```
```sh
$ helm install kata-deploy -f values.yaml "${CHART}" --version "${VERSION}"
```
## Example: Multiple Kata installations on the same node
For debugging, testing and other use-case it is possible to deploy multiple

4
tools/packaging/kata-deploy/helm-chart/kata-deploy/templates/kata-deploy.yaml
View File

@ -32,6 +32,10 @@ spec:
serviceAccountName: {{ .Chart.Name }}-sa-{{ .Values.env.multiInstallSuffix }}
{{- else }}
serviceAccountName: {{ .Chart.Name }}-sa
{{- end }}
{{- with .Values.nodeSelector }}
nodeSelector:
{{- toYaml . | nindent 8 }}
{{- end }}
hostPID: true
containers:

8
tools/packaging/kata-deploy/helm-chart/kata-deploy/values.yaml
View File

@ -5,9 +5,15 @@ image:
tag: ""
# k8s-dist can be k8s, k3s, rke2, k0s, microk8s
k8sDistribution: "k8s"
# Node selector to control which nodes the kata-deploy daemonset runs on
# Example:
# nodeSelector:
# kata-containers: "enabled"
# node-type: "worker"
nodeSelector: {}
env:
debug: "false"
shims: "clh cloud-hypervisor dragonball fc qemu qemu-coco-dev qemu-runtime-rs qemu-se-runtime-rs qemu-snp qemu-tdx stratovirt qemu-nvidia-gpu qemu-nvidia-gpu-snp qemu-nvidia-gpu-tdx"
shims: "clh cloud-hypervisor dragonball fc qemu qemu-coco-dev qemu-runtime-rs qemu-se-runtime-rs qemu-sev qemu-snp qemu-tdx stratovirt qemu-nvidia-gpu qemu-nvidia-gpu-snp qemu-nvidia-gpu-tdx"
defaultShim: "qemu"
createRuntimeClasses: "true"
createDefaultRuntimeClass: "false"