The ELB is $20/mo. A micro RDS is $12/mo. 3 x t2.micro EC2 instance is $15/month.

So you're looking at ~ $50/mo.

For a setup that can now scale to any volume independently on the HTTP, compute and database tiers.

Overkill for a personal WordPress. Just right for a serious business.

> Has anybody working towards serverless version of wp?

I'm curious on what a "serverless version of wordpress" consists of, please enlighten us on the technical details of a serverless wordpress, sincerely. And how would you have a "serverless shopping card" too ? I'm really curious about the how it. If you're talking about a static blog generator then it already exists (Hugo,...) is this what you call serverless ?

By serverless I mean version of the wp which could use Google functions (https://cloud.google.com/functions/) or Amazon Lambda (https://aws.amazon.com/lambda/) or Microsoft Azure Functions (https://azure.microsoft.com/en-us/services/functions/)

It would provide unlimited and automatic scaling, simplified setup/architecture and we would pay only for what we use.

Most blog content is static, why would you need to use lambda for anything ? you already get automatic scaling by putting static files on S3. What Wordpress functionality would need to be implemented with Lambda ?

I run a static blog on S3 using Lambda. I upload a markdown post to an S3 bucket, Lambda runs Hugo (could be Jekyll, or whatever) to regenerate the appropriate files, then uploads it to an output buckets, invalidates the files it needs to in Cloudfront, etc.

Not infeasible to think you could use Lambda to generate a static cache of a WP site onto S3 and update files on demand.

I read "serverless" in this context to mean a statically generated site, yes. I also infer that dynamic content like authentication, shopping carts, forms, etc would be third party solutions via Ajax and CORS.

I built a service [1] for this latter part (authentication, CORS sql database, and static file hosting). The pieces one could use to build anything for a statically generated site. Adoption has been... non existent up to now.

[1] https://www.lite-engine.com

Something like https://beta.getshifter.io? Unfortunately only as 'full SaaS' available, so the 'build process' and hosting is managed by them.

If a Wordpress site is valuable enough to justify paying an engineer to set this up, hundreds a month are probably not a concern.

Not if you have many domains/customers.

You can easily manage to get this setup at 30$/mo with Scaleway for example.