For reference: If you use the latest Core Components and Dynamic Media, a WebP image will be delivered by DM if the browser can handle that. And to make that work you don't need to do anything (but using DM and Core Components).

In that case you need the resouceResolver.map() API call.

The spec does not mention any limits, but of course the implementation makes some assumptions about sizes; exceeding them can cause memory problems or make your system slow. That means that if you know that the size of the data you want to store can exceed 100k or more, I recommend to store it in a ...

You will get the first warnings when you hit 100k in the property. I would recommend to stay below that limit.   if you assume that you get into that range or even higher, store the data as nt:file node.    

In your example code you are trying to read the "referer" header, which is obviously not what you want. Do you want to read the "long" (probably you mean "unshortened") path of the requested resource or the "long" path of the referer?   In any way, the links @Saravanan_Dharmaraj  provided are good o...

I am referring to the official documentation. I understand it in a way, that it is the customer's responsibility to create the container; and that CM will startup the container. It's not that your maven build will start it up directly using some plugin or so.   For the environment variables it is st...

Can you please give some context what you mean with "Docker file"? Where in the context of Cloud Manager do you use a Docker file?

You can use ResourceChangeEvents for that, but explicitly for pages there other events on a page level, and IIRC there might even be a MOVE event (I have seen code for that once).

The cache-hit ratio on individual dispatchers is not a really good indication how the overall caching is doing, especially when adding Fastly into the equation. And the goal should be to cache as much as possible in the CDN.   I recommend to check https://experienceleague.adobe.com/docs/experience-m...

For what?   The AEM 6.5 security checklist: https://experienceleague.adobe.com/docs/experience-manager-65/administering/security/security-checklist.html?lang=en   And for making the AEM instance public: There is nothing really special, you can follow any documentation which describes how to make int...