Self-hosted dev sandboxes with preview URLs (Docker, Go, no K8s)

Re:Self-hosted dev sandboxes with preview URLs (Docker, Go, ... by cadamsdotcom on Wednesday June 03, 2026 @06:13PM (#48390850)

Thanks for posting your project & congrats on shipping.

I have to confess, I’m struggling to see how this beats having my agent write 100 lines of shell script in a couple of seconds to do just the subset of this I need..

Would be neat to be able to read about that on its landing page!

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Re:Self-hosted dev sandboxes with preview URLs (Docker, Go, ... by digitaltrees on Wednesday June 03, 2026 @07:59PM (#48391832)

This feels like the notorious Dropbox objections when it launched. Just because it's easy to you doesn't mean it's easy for everyone. I can see this being really useful for my product which is cursor on my phone/computer/and browser. I built an IDE with a Linux container so I could have a real dev environment and file system on my iPhone. It let's me code at the beach with my kids (plan and epic have the AI do a massive pull request while I am having fun for 30 mins with the family. Spend 5 minutes giving the code a look which often finds some large concerns that warrant a new prompt etc). The containers were actually a huge pain to set up and I am still not satisfied with my implementation.

I'll definitely check this out. This project is actually perfect for several projects i am working on.

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Re:Self-hosted dev sandboxes with preview URLs (Docker, Go, ... by danudey on Wednesday June 03, 2026 @06:30PM (#48391030)

I think the idea here is to provide this as a way to host/manage multiple different test apps, or apps for a team, or maybe you're just building one of those 'our AI will build you a web app' services. Definitely overkill for one-off projects.

As much as the 'no kubernetes needed' thing is nice, it would be nice if it had a 'yes kubernetes' option for those of us who have a k8s cluster available and want to yeet things into it or do more meaningful network restrictions/sandboxing/etc.

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Re:Self-hosted dev sandboxes with preview URLs (Docker, Go, ... by marcammann on Wednesday June 03, 2026 @06:55PM (#48391229)

I started using the Sandbox CRD: https://github.com/kubernetes-sigs/agent-sandbox

And if I really need to kick off a box very quickly, OpenRouter Spawn seems like it'll do 95% of what I need it to do: https://github.com/OpenRouterLabs/spawn

Still missing better restrictions though.

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Re:Self-hosted dev sandboxes with preview URLs (Docker, Go, ... by theptip on Wednesday June 03, 2026 @10:10PM (#48392793)

If you’ve got a k8s cluster, review apps are completely solved, right? You only need this if you’re in the niche of “no k8s, no PaaS”.

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Re:Self-hosted dev sandboxes with preview URLs (Docker, Go, ... by ambicapter on Wednesday June 03, 2026 @07:53PM (#48391777)

That's funny, their README explicitly mentions this as a comment.

> "Why not just a shell script?"

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Re:Self-hosted dev sandboxes with preview URLs (Docker, Go, ... by no-name-here on Wednesday June 03, 2026 @08:33PM (#48392137)

It looks like the OP repo was created 6 hours ago and has multiple commits since the grandparent comment, including a commit message subject relevant to the GP comment.

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Re:Self-hosted dev sandboxes with preview URLs (Docker, Go, ... by zackify on Wednesday June 03, 2026 @06:28PM (#48391005)

Haha that's what I do personally.

Vibe coded in 30mins a textualize tui that shows lxd containers.

I just hit "p" on a container to forward that container to host.

I only use ports for one instance at a time so it works perfect.

Hitting enter auto joins the lxc container instance with tmux.

Works perfect for me for tasks that can stay long running

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