Show HN: Switchboard – A mDNS based reverse proxy for personal infrastructure

Re:Show HN: Switchboard – A mDNS based reverse proxy for per... by larrywright on Monday June 22, 2020 @10:56AM (#23600907)

I’m in the process of building out a smallish home lab, with most things running in containers, and one of the things I wanted was dns for my internal things that Just Worked. It seems this is still harder than it needs to be. I started looking at Consul + Traefik, but the latest version of Traefik seems to have gotten significantly more complex for simple use cases. I’ve since started looking at Caddy, which seems far more straightforward. I will look at this, however, since it might be simpler still.

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Re:Show HN: Switchboard – A mDNS based reverse proxy for per... by joshstrange on Monday June 22, 2020 @11:30AM (#23601285)

+1 for Caddy.

I have been using it for years now for my personal stuff (almost all containers) and it's a breeze (the https part especially). I recently [0] added SSO for all my local stuff so I just have to login once and have access to everything.

[0] https://joshstrange.com/securing-your-self-hosted-apps-with-...

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Re:Show HN: Switchboard – A mDNS based reverse proxy for per... by whytheplatypus on Monday June 22, 2020 @11:15AM (#23601132)

It makes my morning that this might be useful to someone aside from myself. I went down a similar path trying to find something mindless to route traffic to small projects I tend to run on raspberry pi's around the house, which resulted in this being made.

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Re:Show HN: Switchboard – A mDNS based reverse proxy for per... by mholt on Monday June 22, 2020 @11:43AM (#23601462)

You can have the best of both worlds; since this project is written in Go, it can easily be made into a Caddy module that takes care of the mDNS part, without having to overlap other functionality. Docs: https://caddyserver.com/docs/extending-caddy

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Re:Show HN: Switchboard – A mDNS based reverse proxy for per... by imhoguy on Monday June 22, 2020 @12:21PM (#23601991)

The simplest: shared `/etc/hosts`. And container hint: you can bind mount individual files as volumes.

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Re:Show HN: Switchboard – A mDNS based reverse proxy for per... by sneak on Monday June 22, 2020 @03:50PM (#23605449)

Also cool is that you can bind mount the same sqlite backing db file into multiple containers.

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Re:Show HN: Switchboard – A mDNS based reverse proxy for per... by nawgszy on Monday June 22, 2020 @03:59PM (#23605604)

That seems dangerous? How can it be so? Surely multiple instances of SQLite shouldn't read the same backing file..

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Re:Show HN: Switchboard – A mDNS based reverse proxy for per... by sneak on Monday June 22, 2020 @04:20PM (#23605960)

The whole job of sqlite is to handle the locking to keep such accesses safe.

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Re:Show HN: Switchboard – A mDNS based reverse proxy for per... by nawgszy on Tuesday June 23, 2020 @08:56PM (#23622619)

Ok, I see. I did some reading and it looks like this to me:

* the DB is supported by a backing file

* this backing file supports multiple read threads simultaneously but writes are locked via filesystem locks

* write performance with multiple writers is therefore dangerous

* read performance is good if no one is writing and consistent even if someone is

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Re:Show HN: Switchboard – A mDNS based reverse proxy for per... by dguo on Monday June 22, 2020 @11:25AM (#23601229)

I spent the past weekend setting up a VPS for a personal project, and Caddy worked wonderfully well. All I needed was HTTPS for a server, and a two line Caddyfile gave me that:

reverse_proxy localhost:8000

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Re:Show HN: Switchboard – A mDNS based reverse proxy for per... by bule0bird on Monday June 22, 2020 @01:38PM (#23603143)

I'm using dnscrypt proxy with as filtering and some local DNS config, configured with dnscrypt server running on my VPS. It is running on pi-zero (old $5 one without wireless), a bit slow (50ms query), but works fine, especially with caching

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Re:Show HN: Switchboard – A mDNS based reverse proxy for per... by hashkb on Monday June 22, 2020 @11:05AM (#23601024)

Caddy user here... definitely interesting to me.

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Re:Show HN: Switchboard – A mDNS based reverse proxy for per... by pibefision on Monday June 22, 2020 @12:00PM (#23601703)

+1 for Traefik. The problem was the documentation IMO. It works great including the integration with Docker.

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Re:Show HN: Switchboard – A mDNS based reverse proxy for per... by femiagbabiaka on Monday June 22, 2020 @11:28AM (#23601261)

BIND provides DNS that just works. :)

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Re:Show HN: Switchboard – A mDNS based reverse proxy for per... by larrywright on Monday June 22, 2020 @11:36AM (#23601369)

Agreed, but my point is that if I spin up a new container with something in it, I want to be able to have DNS registration occur automatically so that I’m not having to go update DNS entries somewhere.

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Re:Show HN: Switchboard – A mDNS based reverse proxy for per... by drybjed on Monday June 22, 2020 @12:33PM (#23602162)

A simple solution would be `dnsmasq` which provides DNS and DHCP, but it cannot be used on a public network. More complex setup would be ISC DHCP server that maintains a dynamic subdomain in BIND.

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Re:Show HN: Switchboard – A mDNS based reverse proxy for per... by DrPhish on Monday June 22, 2020 @01:26PM (#23602965)

>ISC DHCP server that maintains a dynamic subdomain in BIND

This is what I do. I don't remember setting it up being particularly complex

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Re:Show HN: Switchboard – A mDNS based reverse proxy for per... by q3k on Monday June 22, 2020 @01:08PM (#23602708)

PowerDNS lets you do that (if you run it against a SQL database), or CoreDNS/etcd for simple stuff.

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