mirror of
https://github.com/hanzoai/gateway.git
synced 2026-11-02 08:45:10 +00:00
zeekayandHanzo Dev
53350699b6
Every import in this module now resolves to github.com/hanzoai/gateway/v2.
The 34 github.com/krakend/* + github.com/luraproject/lura modules that
supplied the engine and its components are vendored under internal/ and
their 91 packages rewritten onto our own path.
Why fold rather than mirror into 34 hanzoai/* repos:
- It removes the exposure outright. 34 rows leave 34 rows of go.sum to
reason about; zero modules leave nothing. `go list -m all` and go.sum
now contain no krakend/lura entry at all.
- Cross-references cannot go wrong. 28 of the 34 import lura (97 files
inside lura self-reference it). Mirroring means rewriting every one of
those to our lura, and a single miss silently links a SECOND copy of
lura into the binary. With one module that is structurally impossible.
- It creates no duplicates. These are lura-coupled gateway glue with no
consumer outside this binary; publishing 34 repos would be 34 new
things to maintain for zero second caller. internal/ makes that
guarantee mechanical — Go forbids importing it from outside this
module, so none of it can become a competing public package. Verified
no repo outside gateway imports any hanzoai/gateway/v2 subpackage.
Layout mirrors provenance so an upstream re-sync stays a diff:
luraproject/lura/v2 -> internal/lura (the engine, 20 pkgs)
krakend/krakend-<x> -> internal/plugin/<x> (28 components)
krakend/<x> -> internal/pkg/<x> (6 standalone libs)
This commit is PURELY MECHANICAL: 196 of the 197 vendored files are
byte-identical to their upstream original once the import rewrite is
applied. The single exception is bloomfilter's subpackage, which upstream
names `krakend` — the one package name that could not survive as-is; it
becomes internal/pkg/bloomfilter/register. Hand edits land separately in
the next commit so they are readable on their own.
Per `go mod vendor` semantics, dependencies' _test.go files are not
vendored. They test upstream code at a pinned version that we do not
modify, several cannot run at all from a module distribution (they need
TLS certs and compiled .so plugins upstream generates but never ships),
and one is a 100k-request stress test that exhausts the ephemeral port
range and fails every package running beside it. Fold integrity is proven
by the byte-diff above instead, which is the stronger check.
Preserved deliberately — each of these is behaviour, not branding:
- the `github.com/devopsfaith/krakend*` extra_config namespace strings
(35 of them). These are config-surface keys, not import paths;
renaming one silently stops that component finding its config. The
jose validator namespace backs `auth/validator` on 212 endpoints.
- core.KrakendVersion / KrakendUserAgent / the X-KRAKEND consts, whose
VALUES rebrand.go overwrites — that seam is unchanged.
- the KRAKEND_ koanf env prefix (a hardcoded upstream const).
- every vendored module's LICENSE (34 files, Apache-2.0/MIT).
The Makefile/CI -X paths move with the engine. An -X naming a symbol that
does not exist is silently ignored by the linker, so a stale path here
would have shipped an "undefined" version in the backend User-Agent and
X-Api-Version with a perfectly green build. Verified live:
`gateway version` reports 2.13.0, not undefined.
Verification (GOWORK=off CGO_ENABLED=0, both tag modes):
go build ./... OK go build -tags legacy ./... OK
go vet ./... clean go vet -tags legacy ./... clean
go test ./... 6/6 ok go test -tags legacy 5/5 ok
tests/ integration harness 47 fixtures pass
gateway check -c configs/{hanzo,lux}/gateway.json -> Syntax OK!
go list -m all | grep -iE 'krakend|lura' -> empty
go mod verify -> all modules verified
Co-authored-by: Hanzo Dev <[email protected]>
67 lines
1.7 KiB
Go
67 lines
1.7 KiB
Go
package prometheus
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import (
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"context"
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"errors"
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"fmt"
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"log"
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"net/http"
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"time"
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"contrib.go.opencensus.io/exporter/prometheus"
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opencensus "github.com/hanzoai/gateway/v2/internal/plugin/opencensus"
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prom "github.com/prometheus/client_golang/prometheus"
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)
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func init() {
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opencensus.RegisterExporterFactories(func(ctx context.Context, cfg opencensus.Config) (interface{}, error) {
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return Exporter(ctx, cfg)
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})
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}
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func Exporter(ctx context.Context, cfg opencensus.Config) (*prometheus.Exporter, error) {
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if cfg.Exporters.Prometheus == nil {
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return nil, errDisabled
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}
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prometheusRegistry := prom.NewRegistry()
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err := prometheusRegistry.Register(prom.NewProcessCollector(prom.ProcessCollectorOpts{})) // skipcq: GO-W1009
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if err != nil {
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return nil, err
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}
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err = prometheusRegistry.Register(prom.NewGoCollector()) // skipcq: GO-W1009
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if err != nil {
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return nil, err
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}
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exporter, err := prometheus.NewExporter(prometheus.Options{Namespace: cfg.Exporters.Prometheus.Namespace, Registry: prometheusRegistry})
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if err != nil {
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return exporter, err
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}
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router := http.NewServeMux()
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router.Handle("/metrics", exporter)
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server := http.Server{
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Handler: router,
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Addr: fmt.Sprintf(":%d", cfg.Exporters.Prometheus.Port),
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ReadHeaderTimeout: 3 * time.Second,
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}
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go func() {
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if serverErr := server.ListenAndServe(); serverErr != http.ErrServerClosed {
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log.Fatalf("[SERVICE: Opencensus] The Prometheus exporter failed to listen and serve: %v", serverErr)
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}
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}()
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go func() {
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<-ctx.Done()
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ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
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server.Shutdown(ctx)
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cancel()
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}()
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return exporter, nil
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}
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var errDisabled = errors.New("opencensus prometheus exporter disabled")
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