[HN Gopher] Capsule: the nano (WASM) functions runner
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Capsule: the nano (WASM) functions runner
Author : rcarmo
Score : 87 points
Date : 2022-10-02 08:56 UTC (14 hours ago)
(HTM) web link (github.com)
(TXT) w3m dump (github.com)
| rebolyte wrote:
| Interested in this! thanks for the clear examples in the readme
| elesbao wrote:
| been playing with firecrackervm and this seems a perfect runtime
| for my small images with wasm.
| moralestapia wrote:
| In case someone knows, is there a way to use this lib but
| compiling from JS instead of Go?
| norman784 wrote:
| I was thinking on build my local serverless server, so I can
| deploy my services easily (almost as easy as docker, but with
| less overhead I think), there are few downsides I think and it's
| that docker let more variety of software run, while a serverless
| host need specifically or in most cases Wasm.
|
| Said that I have no idea how to start, will this be a good
| foundation to build an easy to deploy local server? (think of aws
| lambdas, vercel, cloudflare workers, fly.io, etc).
| qbasic_forever wrote:
| Do you want to use a FaaS or just toy with making your own? If
| you just want to use something check out OpenFaaS, it's very
| easy to get started and is well documented:
| https://www.openfaas.com/
|
| If you want to build your own FaaS, I'd still explore OpenFaaS
| as its creator has documented a lot of its creation and you
| will soon discover the critical things you'll need to figure
| out for building your own similar service (i.e. stuff like
| sandboxed execution environment, API gateway, scaling up and
| down functions, etc.).
| inhumantsar wrote:
| Potentially stupid question: I can see the benefit of running Go-
| compiled-to-WASM client side but I don't really get why I might
| want to run WASM server-side.
|
| What would be the benefit of server-side WASM over running a Go
| binary directly? To run untrusted binaries alone or are there
| other benefits?
| debarshri wrote:
| WASM is often pitched as a potential alternative to docker and
| other OCI compatible alternatives. It does not have to be a go-
| compiled-to-wasm, it could be python compiled to WASM, or rust
| for that matter. Either ways, you could use any function
| runners like these, Wasmer [1] or any webassembly runtime to
| run them on a host.
|
| [1] https://wasmer.io/
| TobyTheDog123 wrote:
| Isn't Wasmer the sketchy one? I'm not very up-to-date on the
| WASM drama lately.
| debarshri wrote:
| I'm not aware of one. Is there some WASM drama going on
| lately?
| ignoramous wrote:
| https://news.ycombinator.com/item?id=27543731
| 0x457 wrote:
| WASM on server-side main benefits are: easy sandboxing, being
| polyglot, hot-reload.
|
| This one seems not quite polyglot, but it's easy to change.
|
| I think WASM, once WIT (or something similar) gets into spec,
| will be a wonderful way to make plugins for your service.
| praveen9920 wrote:
| The documentation is one of the cleanest I've seen in recent
| days. Kudos
| bsaul wrote:
| Side question : is nats a credible alternative to kafka nowadays
| ? I've read it could do the same things in theory, but i haven't
| heard of real world experience feedbacks with this tech.
| superzamp wrote:
| Side answer to your side question: not sure for NATS, but
| Redpanda is trying to be a lightweight drop-in alternative
| FridgeSeal wrote:
| Redpanda also appears to be being a bit more stringent about
| some of the correctness and consistency stuff.
| zcw100 wrote:
| And RedPanda uses WebAssembly as an execution engine to keep
| with the WASM theme here. https://redpanda.com/blog/wasm-
| architecture
| deforciant wrote:
| It's great actually, you can run it with pretty much no
| maintenance overhead. I have been using it in prod in multiple
| companies for years now
| paulgb wrote:
| I haven't used Kafka in production, but we use NATS in
| Spawner[1] and I find it quite pleasant to work with. It gives
| you some basic but powerful messaging constructs
| (request/reply, queue groups, temporal decoupling via
| Jetstream) and then gets out of your way.
|
| [1] https://github.com/drifting-in-space/spawner
| asim wrote:
| NATS is very powerful. The author has like 25 years of
| experience building messaging systems and NATS has been around
| for a long time. The streaming component is slightly newer but
| I'd say it does the same job as Kafka but much lighter
| footprint with zero deps.
| [deleted]
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