Railway•10mo ago

Using Go 1.21.0 with Railway

Hey team, I'm probably missing something obvious, but I'm struggling to upgrade my Go app to Go 1.21.0 on Railway. Here's the output I get:

==============
Using Nixpacks
==============

context: 7458ed1512f201f973081fea9b02a9ca
 
╔══════ Nixpacks v1.12.0 ══════╗
║ setup      │ go              ║
║──────────────────────────────║
║ install    │ go mod download ║
║──────────────────────────────║
║ build      │ go build -o out ║
║──────────────────────────────║
║ start      │ ./out           ║
╚══════════════════════════════╝
 
 
... 
 
#14 [stage-0 8/8] RUN --mount=type=cache,id=s/17c92c1f-5d79-4f57-924d-6eb1a3dcf759-/root/cache/go-build,target=/root/.cache/go-build go build -o out
 
#14 0.513 pkg/services/analyzedocumentservice/analyze_document_service.go:4:2: package cmp is not in GOROOT (/nix/store/a7875alzpnr46z6mv4ssymfdwmvr6xbq-go-1.19.4/share/go/src/cmp)
#14 0.513 pkg/api/middleware/user_allowlist.go:8:2: package slices is not in GOROOT (/nix/store/a7875alzpnr46z6mv4ssymfdwmvr6xbq-go-1.19.4/share/go/src/slices)

==============
Using Nixpacks
==============

context: 7458ed1512f201f973081fea9b02a9ca
 
╔══════ Nixpacks v1.12.0 ══════╗
║ setup      │ go              ║
║──────────────────────────────║
║ install    │ go mod download ║
║──────────────────────────────║
║ build      │ go build -o out ║
║──────────────────────────────║
║ start      │ ./out           ║
╚══════════════════════════════╝
 
 
... 
 
#14 [stage-0 8/8] RUN --mount=type=cache,id=s/17c92c1f-5d79-4f57-924d-6eb1a3dcf759-/root/cache/go-build,target=/root/.cache/go-build go build -o out
 
#14 0.513 pkg/services/analyzedocumentservice/analyze_document_service.go:4:2: package cmp is not in GOROOT (/nix/store/a7875alzpnr46z6mv4ssymfdwmvr6xbq-go-1.19.4/share/go/src/cmp)
#14 0.513 pkg/api/middleware/user_allowlist.go:8:2: package slices is not in GOROOT (/nix/store/a7875alzpnr46z6mv4ssymfdwmvr6xbq-go-1.19.4/share/go/src/slices)

Clearly the problem is with the Go version nixpacks has installed, and that's understandable because I think the latest version of Go available from NixOS is 1.20.6. My question is: when will I be able to use Go 1.21.0 on Railway? Are there any workarounds until then?

12 Replies

Percy•10mo ago

Project ID: 17c92c1f-5d79-4f57-924d-6eb1a3dcf759

Brody•10mo ago

correct, the most up to date version of go that nixos has is 1.20.6 https://github.com/NixOS/nixpkgs/tree/master/pkgs/development/compilers/go this would be the highest version you could use on railway

when will I be able to use Go 1.21.0 on Railway

when nixos has go 1.21.0 available

Are there any workarounds until then?

yes! do what i do, build with a Dockerfile, the go team automatically releases up to date docker images

GetPsyched•9mo ago

Can't you maintain a copy of the existing Go package and just bump the version for yourself? I've done that for a bunch of apps that don't yet have the latest and greatest version of the app on nixpkgs

Brody•9mo ago

sounds like more work than it's worth

GetPsyched•9mo ago

Nope

Brody•9mo ago

I can use whatever go version I want without having to maintain anything

GetPsyched•9mo ago

You just copy paste the nix expression for go and bump the version

Brody•9mo ago

I just change a number at the top of the dockerfile

GetPsyched•9mo ago

Maintenance here would mean just to be updated with the nix expression upstream If you have that setup, that's easier. But that offloads the issue to the developer It's fine but just mentioned an alternative you guys could consider

Brody•9mo ago

no alternative needed, nix packages has 1.21.1 now

GetPsyched•9mo ago

Yeah

Brody•9mo ago

I wonder if op still cares

[phases.setup]
  nixpkgsArchive = 'e67b7b6ab5e1c8055597d5c02ad6d3c489f0f134'

[phases.setup]
  nixpkgsArchive = 'e67b7b6ab5e1c8055597d5c02ad6d3c489f0f134'

uses go 1.21.1

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Using Go 1.21.0 with Railway