Added ChaosCenter upgrade docs (#100)

* Added upgrade docs

Signed-off-by: Amit Kumar Das <amit@chaosnative.com>
Co-authored-by: Raj Babu Das <mail.rajdas@gmail.com>

website/docs/user-guides/upgrade.md

@@ -0,0 +1,33 @@
+---
+id: upgrade
+title: Upgrade Litmus ChaosCenter to Latest Version
+sidebar_label: 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.
+
+    ```bash
+    kubectl apply -f https://raw.githubusercontent.com/litmuschaos/litmus/2.0.0/docs/2.0.0/litmus-2.0.0.yaml
+    ```
+    
+2.  Reinstall the agent components using litmusctl
+    >Note: While reinstallation, make sure to use the same agent name 
+    
+    To reinstall the ChaosAgents, use [Litmusctl](../litmusctl/usage-non-interactive-mode.md)
+
+## 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.

website/sidebars.js

@@ -139,7 +139,8 @@ module.exports = {
         },
         'user-guides/gitops-configuration',
         'user-guides/image-registry',
-        'user-guides/uninstall-litmus'
+        'user-guides/uninstall-litmus',
+        'user-guides/upgrade'
       ]
     },
 

website/versioned_docs/version-2.0.0/user-guides/upgrade.md

@@ -0,0 +1,33 @@
+---
+id: upgrade
+title: Upgrade Litmus ChaosCenter to Latest Version
+sidebar_label: 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.
+
+    ```bash
+    kubectl apply -f https://raw.githubusercontent.com/litmuschaos/litmus/2.0.0/docs/2.0.0/litmus-2.0.0.yaml
+    ```
+    
+2.  Reinstall the agent components using litmusctl
+    >Note: While reinstallation, make sure to use the same agent name 
+    
+    To reinstall the ChaosAgents, use [Litmusctl](../litmusctl/usage-non-interactive-mode.md)
+
+## 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.

website/versioned_sidebars/version-2.0.0-sidebars.json

@@ -367,6 +367,10 @@
         {
           "type": "doc",
           "id": "version-2.0.0/user-guides/uninstall-litmus"
+        },
+        {
+          "type": "doc",
+          "id": "version-2.0.0/user-guides/upgrade"
         }
       ]
     },