- now supports init containers as well as regular containers
- can still target a pod by selector
- allows tracking when sync is done before continuing exec,

e.g. Using the same images and volume mnt as the regular container:

```
      initContainers:
        - name: data-loader
          image: "registry1.dso.mil/ironbank/beast-code/beast-core/base-image:3.4.1"
          # Wait for the data to be loaded
          command:
            [
              "sh",
              "-c",
              'while [ ! -f /modules/.zarf-sync-complete ]; do echo "waiting for zarf data sync" && sleep 5; done',
            ]
          volumeMounts:
            - name: workspace
              mountPath: /modules
```