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add README for localERIDiscovery mode #22

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Jul 15, 2025
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add README for localERIDiscovery mode #22

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10 changes: 10 additions & 0 deletions README.md
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Expand Up @@ -56,6 +56,16 @@ credentials:
accessKeyID: "{access key}"
accessKeySecret: "{access key secret}"
```
#### localERIDiscovery mode
To expose existing erdma devices on the node to pods, enable `localERIDiscovery` configuration in values.yaml. This eliminates the need to create and authorize ram roles and policies according to the above steps for accessing the erdma API.
##### expose specified erdma devices on each node
`exposedLocalERIs` field in values.yaml defines which erdma devices are exposed per node. For example:
```yaml
exposedLocalERIs:
- i-XXX erdma_0/erdma_1 # specify instance ID and erdma devices(erdma_0/erdma_1) to expose
- i-* erdma_0 # specify erdma devices(erdma_0) to expose for all unspecified nodes
- i-* erdma_* # expose all existing erdma devices for all unspecified nodes
```
#### helm install
```sh
helm install -f values.yaml --namespace kube-system alibaba-erdma-controller deploy/helm/
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