The latest filter could not be loaded due to image cache

[xujinguang]

I found there is no delete command on the webassemblyhub.io website，so I don't want to change tags to generate a bunch of junk. Then I always use the same tag to push image to the webassemblyhub.io, this ok, it can overwrite the old image.

But when I deploy it, I found wasme use the old cache by ref key. And wasme not update the cache.

here

func (c *CacheImpl) Add(ctx context.Context, ref string) (digest.Digest, error) {
	if img := c.cacheState.findImage(ref); img != nil {
		desc, err := img.Descriptor()
		if err != nil {
			return "", err
		}
		return desc.Digest, nil
	}
//....
}

try to clear cache, but it doesn't success

kubectl  exec  wasme-operator-5b7788d9bb-2wb27   -n wasme -- /usr/local/bin/wasme cache  webassemblyhub.io/kowalski/modify-body:v0.3  --clear-cache=true --port=0

so I must delete the configmap and wasme-cache pod to update cache.

This is unreasonable， because you can't stop the user from updating the image with same tag.

How to solve this？

[yuval-k]

good question - we are updating the caching mechanism and will see how to best address cache updates; the problem is that you do want to cache the tags in most cases, so we will have to think on how best to accomplish this