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docs: update upgrade to consul-dataplane docs on k8s (#17852)

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Iryna Shustava 2023-06-23 16:26:57 -06:00 committed by GitHub
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website/content/docs/k8s/upgrade/index.mdx
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@ -219,7 +219,7 @@ In earlier versions, Consul on Kubernetes used client agents in its deployments.
If you upgrade Consul from a version that uses client agents to a version the uses dataplanes, complete the following steps to upgrade your deployment safely and without downtime. If you upgrade Consul from a version that uses client agents to a version the uses dataplanes, complete the following steps to upgrade your deployment safely and without downtime.
1. Before you upgrade, edit your Helm chart to enable Consul client agents by setting `client.enabled` and `client.updateStrategy`: 1. Before you upgrade, edit your Helm chart configuration to enable Consul client agents by setting `client.enabled` and `client.updateStrategy`:
```yaml filename="values.yaml" ```yaml filename="values.yaml"
client: client:
@ -228,6 +228,18 @@ If you upgrade Consul from a version that uses client agents to a version the us
type: OnDelete type: OnDelete
``` ```
1. Update the `connect-injector` to not log out on restart
to make sure that the ACL tokens used by existing services are still valid during the migration to `consul-dataplane`.
Note that you must remove the token manually after completing the migration.
The following command triggers the deployment rollout. Wait for the rollout to complete before proceeding to next step.
```bash
kubectl config set-context --current --namespace=<consul installation namespace>
INJECTOR_DEPLOYMENT=$(kg deploy -l "component=connect-injector" -o=jsonpath='{.items[0].metadata.name}')
kubectl patch deploy $INJECTOR_DEPLOYMENT --type='json' -p='[{"op": "remove", "path": "/spec/template/spec/containers/0/lifecycle"}]'
```
1. Follow our [recommended procedures to upgrade servers](#upgrade-consul-servers) on Kubernetes deployments to upgrade Helm values for the new version of Consul. 1. Follow our [recommended procedures to upgrade servers](#upgrade-consul-servers) on Kubernetes deployments to upgrade Helm values for the new version of Consul.
1. Run `kubectl rollout restart` to restart your service mesh applications. Restarting service mesh application causes Kubernetes to re-inject them with the webhook for dataplanes. 1. Run `kubectl rollout restart` to restart your service mesh applications. Restarting service mesh application causes Kubernetes to re-inject them with the webhook for dataplanes.