# Pyxis + Enroot

The script `postinstall.sh`  will install pyxis and enroot onto an instance. Shared container cache path is set to `ENROOT_CACHE_PATH` which should be ideally located on shared filesystem. It will be set to home directory by default, you can override it by setting first positinal argument to your shared FS path:

```yaml
 CustomActions:
    OnNodeConfigured:
      Script: https://raw.githubusercontent.com/aws-samples/aws-parallelcluster-post-install-scripts/main/multi-runner/postinstall.sh
      Args:
        - https://raw.githubusercontent.com/aws-samples/aws-parallelcluster-post-install-scripts/main/pyxis/postinstall.sh
        - -/fsx
```

# Private docker registry
Enroot supports [private docker registry](https://github.com/NVIDIA/enroot/blob/9c6e979059699e93cfc1cce0967b78e54ad0e263/doc/cmd/import.md#description), [AWS ECR](https://aws.amazon.com/ecr/) among others. You can define your own config file that has to be placed on `ENROOT_CONFIG_PATH` from `enroot.template.conf`.