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✨ Add MODE env var and document GOWORKDIR, GOOS, GOARCH ✨

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- rootfs/usr/local/bin/go-workflow: replace GO_PROD=1 check with MODE
resolution; MODE=prod|production enables -trimpath -ldflags=-s -w on
go build; MODE=dev|devel|development is the explicit development path;
GO_PROD=1 remains a legacy alias when MODE is unset; unknown MODE values
warn to stderr and default to development; print active mode on every run
- README.md: add GOWORKDIR, GOOS, GOARCH, MODE, GO_PROD to env vars table
- README.md: update production mode section to use MODE=prod; note GO_PROD
as legacy alias

README.md
rootfs/usr/local/bin/go-workflow
This commit is contained in:
Jason Hempstead
2026-06-21 16:44:18 -04:00
parent 2769cf99fb
commit f910225d3b
2 changed files with 30 additions and 11 deletions
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README.md
+10 -3
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@@ -34,15 +34,18 @@ docker run --rm -v "$PWD:/app" casjaysdev/go:latest
### Production mode
Set `GO_PROD=1` to strip binaries for release: `-trimpath` removes all local
Set `MODE=prod` to strip binaries for release: `-trimpath` removes all local
file system paths; `-ldflags=-s -w` strips the symbol table and DWARF debug
info. Applied to `go build` only — `go test` is unaffected so stack traces
stay readable.
```shell
docker run --rm -v "$PWD:/app" -e GO_PROD=1 casjaysdev/go:latest
docker run --rm -v "$PWD:/app" -e MODE=prod casjaysdev/go:latest
```
`MODE=production` is also accepted. `GO_PROD=1` is a legacy alias that still
works when `MODE` is not set.
### One-shot commands
Pass any command and it runs directly instead of the default workflow:
@@ -192,12 +195,16 @@ volumes:
| `GOPATH` | `/usr/local/share/go` | Workspace; declared as `VOLUME` |
| `GOBIN` | `/usr/local/bin` | Destination for `go install` binaries |
| `GOCACHE` | `/usr/local/share/go/cache` | Build cache (persisted in volume) |
| `GOWORKDIR` | *(cwd / `/app`)* | Override the working directory used by `go-workflow` |
| `GOOS` | *(host OS)* | Target OS for cross-compilation — e.g. `linux`, `darwin`, `windows` |
| `GOARCH` | *(host arch)* | Target architecture — e.g. `amd64`, `arm64` |
| `CGO_ENABLED` | `0` | Static builds by default — override per build |
| `GOTOOLCHAIN` | `auto` | Auto-fetch the Go version declared in `go.mod` |
| `GOFLAGS` | `-buildvcs=false` | Suppress VCS stamp errors on mounted projects |
| `GOPROXY` | `https://proxy.golang.org,direct` | Module proxy — override for private registries |
| `GOTELEMETRY` | `off` | Disable Go 1.23+ telemetry |
| `GO_PROD` | *(unset)* | Set to `1` to enable `-trimpath -ldflags=-s -w` on `go build` |
| `MODE` | `development` | Build mode: `prod`/`production` or `dev`/`devel`/`development` |
| `GO_PROD` | *(unset)* | Legacy alias for `MODE=prod` — set to `1`; superseded by `MODE` |
| `TZ` | `America/New_York` | Override at run time with `-e TZ=...` |
Opt into CGO per build without changing the image: