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artifactapi/docs/goproxy/virtual.md
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unkin-agent 4649878a6d
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Add goproxy virtual repositories (#159)
Go clients need one GOPROXY for internal and public modules; goproxy has no virtual type, so a local goproxy repo and proxy.golang.org cannot be served together.

- union member `@v/list`s; compute `@latest` over the union (highest release, else highest prerelease)
- 302 `@latest` and `.info`/`.mod`/`.zip` to the first member with that version, root-relative and `no-store`; probe `.info` for unlisted pseudo-versions
- validate case-encoded module paths and versions
- fail closed with 502 on a member error, skip members answering 404/410
- cache merged lists, keyed on list and version owners, and module misses for the merge TTL
- add `docs/goproxy/virtual.md` and a stock `golang:1.25` e2e-docker case

requires unkin/artifactapi#143

Reviewed-on: #159
Co-authored-by: unkin-agent <unkin-agent@unkin.net>
Co-committed-by: unkin-agent <unkin-agent@unkin.net>
2026-10-19 21:39:49 +11:00

1.2 KiB

goproxy virtual

A goproxy virtual serves one GOPROXY over local and remote goproxy members: GOPROXY=https://artifactapi.example.com/api/v1/virtual/<name>.

  • <module>/@v/list is the union of member versions, sorted by semver.
  • <module>/@latest is the highest release in that union, else the highest prerelease; with no listed versions it falls back to the first member that answers @latest.
  • @latest and @v/<version>.{info,mod,zip} 302 to the first member, in member order, that lists the version (or, for unlisted pseudo-versions, serves its .info). Redirects are root-relative and no-store.
  • Module paths are case-encoded (uppercase as !lower).
  • A member error fails the request with 502; a member answering 404 or 410 is skipped. Merged lists are cached for 60s.
resource "artifactapi_virtual" "go" {
  name         = "go"
  package_type = "goproxy"
  members      = [artifactapi_local_goproxy.internal.name, artifactapi_remote_goproxy.goproxy.name]
}
export GOPROXY=https://artifactapi.example.com/api/v1/virtual/go GONOSUMDB=example.unkin.net
go get example.unkin.net/hello@latest golang.org/x/text@latest

Publish to the local member directly; the virtual is read-only.