Avoid needing to pull container images every time the demo runs #54
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Currently each time the demo runs the container images must be downloaded. This is O(5GB) of stuff that can't be easily reduced (OpenSearch is 2GB by itself). This makes the demo very painful on slow internet connections. Ideally we want to be able to run the demo offline at times.
To mitigate this, we can mount Kind's containerd storage from the host. This has downsides (most notably that it will grow without bound as there is no garbage collection) but is worthwhile at least some of the time. For now I've hidden this behind a
--mount-containerd
flag.