litmus-docs/website/docs/user-guides/upgrade.md

id	title	sidebar_label
upgrade	Upgrade Litmus ChaosCenter to Latest Version	Upgrade

---

Upgrade ChaosCenter

To upgrade Litmus ChaosCenter from 2.0.0-Beta9 to 2.0.0, you can follow these steps:

1. Disconnect the agent components To disconnect agents, you can do it from the chaoscenter by clicking the disconnect button. With this, the subscriber deployment and agent-config will be removed from the agent cluster.

   <img src={require('../assets/disconnect-image.png').default} width="800" />

2. Upgrade the control plane (ChaosCenter) To upgrade ChaosCenter, you can re-apply the manifest using the kubectl.

   kubectl apply -f https://raw.githubusercontent.com/litmuschaos/litmus/2.0.0/docs/2.0.0/litmus-2.0.0.yaml
   

3. Reinstall the agent components using litmusctl

   Note: While reinstallation, make sure to use the same agent name

   To reinstall the ChaosAgents, use Litmusctl

Upgrade Mongodb DB Schema

Note: This step is not required for upgrading 2.0.0-Beta9 to 2.0.0

To upgrade the DB schema, make sure to delete the PV before re-installing ChaosCenter.

Upgrade ChaosAgent

To upgrade your ChaosAgent, you can follow these steps:

1. If an upgrade is available, you will get an option to upgrade your agent in the ChaosCenter. Upon clicking on the upgrade option, a modal will pop up providing you the litmusctl command which you can execute and your ChaosAgent will be upgraded.

<img src={require('../assets/user-guides/upgrade/upgrade-agent.png').default} width="800" />

Alternatively you can run the following command using litmusctl in the cluster containing the agent by providing <CLUSTER_ID> and <PROJECT_ID>.

litmusctl upgrade agent --cluster-id="<CLUSTER_ID>" --project-id="<PROJECT_ID>"

Note: v0.5.0 of litmusctl is required.