ex_aws VS libcluster

If you want to upload files from the server, please check out ex_aws, ex_aws_s3, and AWS S3 in Elixir with ExAws. Uploading from the server is very straightforward compared to uploading from the client mainly because ex_aws already includes all necessary request settings. If you want the user to first upload the file to the server (maybe you want to change the file a bit before storing it or generating thumbnail of the picture), then consider also using Waffle that comes with seamless integration with ex_aws.

We will use the library ex_aws to manage all the AWS resources

AWS: I don't have a definitive answer for you on AWS. I've used ex_aws a good bit, and it's reasonably solid. aws-elixir also seems to be actively maintained.

Prepare your account, we will use AWS_ACCESS_KEY_ID and AWS_SECRET_ACCESS_KEY. Please visit here for more information about ExAWS: https://github.com/ex-aws/ex_aws

- https://github.com/ex-aws/ex_aws

libcluster is the go-to package for connecting multiple BEAM instances and setting up healing strategies. libcluster provides out-of-the-box strategies and it allows users to define their own strategies by implementing a simple behavior that defines cluster formation and healing according to the supporting service you want to use.

I am using libcluster to connect my nodesI get the following error:

Distributed Elixir can be done with Docker containers too, see https://github.com/bitwalker/libcluster which by default has some Kubernetes support but you can also have third party (or custom) clustering strategies. I've not done this myself but I've seen articles about this a lot during the past years.

Hot code updates for most applications aren't really worth it in my opinion, assuming you do something like blue/green rollover deployments. It's cool that it's possible though. But it requires appup files and afaik Distillery is one of the release tools that has support for it built-in.

On the deployment level, you can use synchronous communication using API-based solutions or asynchronous communication using external solutions (RabbitMQ, Kafka,...) or Erlang/Elixir tools (message passing, pg2, PubSub, Libcluster,...)

Looking throught libcluster code (https://github.com/bitwalker/libcluster/blob/master/lib/strategy/kubernetes_dns.ex#L150) it does seem to require that both nodes share the same basename.

libcluster – Automatic cluster formation/healing for Elixir applications.