Is there similar functionality to the postSyncCommand available for devMode? I'm pondering the case for compiled languages where one syncs over a binary and want to restart the service and similar.

Hi @tall-greece-98310 ! Unfortunately, there is no postSyncCommand support in devMode yet. But we plan to implement it.

That seems very useful. Especially for compiled languages.

@tall-greece-98310 For compiled languages using local mode can be a good alternative, https://docs.garden.io/guides/running-service-in-local-mode

Yeah, but it has issues if the service need to access resources within the cluster. DNS etc.

@curved-intern-91221 Is there already a feature request on github? I didn't find one

@big-spring-14945 no, we don't have a GH issue for that. It's on our internal roadmap.

Just to chime in, a post sync command would definitely be useful but we see users get a lot of mileage out tools like watchexec which watch the file system and respond to changes (https://github.com/watchexec/watchexec). Something like:

yaml
services:
  devMode:
    command:
      - "/bin/sh"
      - "-c",
      - "watchexec -r -e java --debounce 1000 -- ./compile-and-run-my-code.sh # Tweak debounce depending on how slow the compile-and-run script is

Thanks for the watchexec tip!

Hi there 🙂 also trying to figure out how to get to the best dev experience for developing a web server with a compiled language like Rust (sorry if this is the place spot to post) what I'd like to get to - have a preview environment running where I can click around the frontend of our app - I find a bug! - I add a print statement or fix the bug or do a minor change and hit save in my editor - Rust webserver restarts automatically and I can click around the frontend again what is the current best practice here? 🙂 (local mode looks super exciting! but our Rust backend does call other services... is there an ETA for when the reachability of other services limitations will be lifted? 🤔 => https://docs.garden.io/guides/running-service-in-local-mode#reachability-of-the-underlying-services)

Hi @millions-family-77940! Reachability of the underlying services can be a hard-to-implement task with the current local mode machinery, which is pretty lightweight. As as alternative, we have ben thinking about supporting Teleprecense in Garden core and using it as a basis for advanced local mode use cases. We haven't started any progress on that yet.

@millions-family-77940 have you looked into Dev Mode? I am not a Rustacean but I peeked into the tooling around Rust and web servers and it looks like what Rust people do is run

gdbserver

. Then you'd set up your sync folders between your local environment and remote environment. I do this with Python in this video:

our problem with dev-mode is that our Docker containers only contain the binary not the source files as of now (so not possible to recompile and restart the server within the docker container once it's built). I guess we might need to change that if we want to make better use of the dev mode 🤔

Ah, gotcha, in that case something you could try is targeting a different stage given a multi-stage Dockerfile that contains the source code when in the dev environment, for example

hello! i'm the resident rust enthusiast at garden 🦀 i'm adding a quick rust example here, i hope this helps! https://github.com/garden-io/garden/pull/3503

awesome, thanks a lot! I'll pass it on to our devs and will let you know if there are more questions 🙂

I've had an idea inspired by how

devspace

does things: if there was a way to detect if devMode is active for a service, then one could use a conditional for the image, so that it uses a separate dev image (with all the tooling required for that), that allows sync'ing files and all that, while not needing to touch the prod image (that shouldn't contain all that kind of stuff). e.g. we could have two container builds that a helm module depends on (conditionally via template ternary test on devMode being active or not). one is a devMode one and a standard "deploy" one. then in the service we can again use a ternary conditional to specify the image used for the service etc. Is there already a way to detect in a template if devMode is active? That'd be a killer addition I think.