Replace the external moby/moby/pkg/namesgenerator dependency with an
internal implementation using gofakeit/v7. The moby package has ~25k
unique name combinations, and with its retry parameter only adds a
random digit 0-9, giving ~250k possibilities. In parallel tests, this
has led to collisions (flakes).
The new internal API at coderd/util/namesgenerator eliminates the
external dependnecy and offers functions with explicit uniqueness
guarantees. This PR also consolidates fragmented name generation in a
few places to use the new package.
| Old (moby/moby) | New |
|-------------------------------------|------------------------|
| namesgenerator.GetRandomName(0) | NameWith("_") |
| namesgenerator.GetRandomName(>0) | NameDigitWith("_") |
| testutil.GetRandomName(t) | UniqueName() |
| testutil.GetRandomNameHyphenated(t) | UniqueNameWith("-") |
namesgenerator package API:
- NameWith(delim): random name, not unique
- NameDigitWith(delim): random name with 1-9 suffix, not unique
- UniqueName(): guaranteed unique via atomic counter
- UniqueNameWith(delim): unique with custom delimiter
Names continue to be docker style `[adjective][delim][surname]`. Unique
names are truncated to 32 characters (preserving the numeric suffix) to
fit common name length limits in Coder.
Related test flakes:
https://github.com/coder/internal/issues/1212https://github.com/coder/internal/issues/118https://github.com/coder/internal/issues/1068
Zach