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init gw controller
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‎.github/workflows/goreleaser.yml‎

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---
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name: goreleaser
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on:
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push:
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tags:
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- v*
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jobs:
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goreleaser:
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runs-on: ubuntu-latest
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steps:
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- name: Checkout
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uses: actions/checkout@v3
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with:
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fetch-depth: 0
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- name: Set up Go
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uses: actions/setup-go@v4
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with:
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go-version: "1.22"
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- name: Set up QEMU
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uses: docker/setup-qemu-action@v2
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- name: Setup Docker Buildx
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uses: docker/setup-buildx-action@v2
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- name: Login to GHCR
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uses: docker/login-action@v2
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with:
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registry: ghcr.io
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username: ${{ github.actor }}
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password: ${{ secrets.GITHUB_TOKEN }}
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- name: Run GoReleaser for tag
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if: "startsWith(github.ref, 'refs/tags/')"
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uses: goreleaser/goreleaser-action@v4
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with:
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version: latest
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args: release --clean
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env:
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GORELEASER_CURRENT_TAG: ${{ github.ref_name }}
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GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
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- name: Clear
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if: always()
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run: rm -f ${HOME}/.docker/config.json

‎.github/workflows/test.yml‎

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on: [push, pull_request]
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name: Test
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jobs:
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test:
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strategy:
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matrix:
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go-version: [1.24.x]
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runs-on: ubuntu-latest
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steps:
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- name: Install Go
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uses: actions/setup-go@v2
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with:
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go-version: ${{ matrix.go-version }}
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- name: Checkout code
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uses: actions/checkout@v2
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- name: Test
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run: go test ./...

‎.gitignore‎

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.vscode
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vendor
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build
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api-gateway-controller

‎.goreleaser.yml‎

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---
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before:
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hooks:
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- go mod tidy
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builds:
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- id: api-gateway-controller
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dir: ./cmd
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env:
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- CGO_ENABLED=0
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goos:
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- linux
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goarch:
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- amd64
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- arm64
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- arm
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binary: api-gateway-controller
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ldflags:
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- "-s -w -X main.version={{ if not .IsSnapshot }}v{{ end }}{{ .Version }} -X main.gitCommit={{ .ShortCommit }}"
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dockers:
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- build_flag_templates: [--platform=linux/amd64]
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dockerfile: Dockerfile
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goarch: amd64
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image_templates: ["ghcr.io/serverscom/api-gateway-controller:{{ if not .IsSnapshot }}v{{ end }}{{ .Version }}-amd64"]
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use: buildx
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- build_flag_templates: [--platform=linux/arm64]
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dockerfile: Dockerfile
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goarch: arm64
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image_templates: ["ghcr.io/serverscom/api-gateway-controller:{{ if not .IsSnapshot }}v{{ end }}{{ .Version }}-arm64v8"]
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use: buildx
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- build_flag_templates: [--platform=linux/arm/v6]
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dockerfile: Dockerfile
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goarch: arm
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goarm: 6
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image_templates: ["ghcr.io/serverscom/api-gateway-controller:{{ if not .IsSnapshot }}v{{ end }}{{ .Version }}-armv6"]
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docker_manifests:
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- name_template: ghcr.io/serverscom/api-gateway-controller:{{ if not .IsSnapshot }}v{{ end }}{{ .Version }}
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image_templates:
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- ghcr.io/serverscom/api-gateway-controller:{{ if not .IsSnapshot }}v{{ end }}{{ .Version }}-amd64
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- ghcr.io/serverscom/api-gateway-controller:{{ if not .IsSnapshot }}v{{ end }}{{ .Version }}-arm64v8
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- ghcr.io/serverscom/api-gateway-controller:{{ if not .IsSnapshot }}v{{ end }}{{ .Version }}-armv6
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release:
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ids: [""]
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draft: true
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extra_files:
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- glob: "./api-gateway-controller-*.tgz"

‎Dockerfile‎

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FROM alpine:3.22
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RUN apk update && apk add ca-certificates && rm -rf /var/cache/apk/*
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COPY api-gateway-controller /bin/api-gateway-controller
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ENTRYPOINT ["/bin/api-gateway-controller"]

‎cmd/main.go‎

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package main
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import (
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"flag"
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"fmt"
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"log"
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"os"
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"github.com/serverscom/api-gateway-controller/internal/config"
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"github.com/serverscom/api-gateway-controller/internal/flags"
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"github.com/serverscom/api-gateway-controller/internal/gateway/controller"
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lbsrv "github.com/serverscom/api-gateway-controller/internal/service/lb"
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tlssrv "github.com/serverscom/api-gateway-controller/internal/service/tls"
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clientgoscheme "k8s.io/client-go/kubernetes/scheme"
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ctrl "sigs.k8s.io/controller-runtime"
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"sigs.k8s.io/controller-runtime/pkg/cache"
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"sigs.k8s.io/controller-runtime/pkg/healthz"
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ctrlZap "sigs.k8s.io/controller-runtime/pkg/log/zap"
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"sigs.k8s.io/controller-runtime/pkg/metrics/server"
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"k8s.io/apimachinery/pkg/runtime"
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gatewayv1 "sigs.k8s.io/gateway-api/apis/v1"
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)
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var (
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version string
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gitCommit string
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scheme = runtime.NewScheme()
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setupLog = ctrl.Log.WithName("setup")
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)
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func init() {
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_ = clientgoscheme.AddToScheme(scheme)
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_ = gatewayv1.Install(scheme)
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}
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func main() {
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var opts ctrlZap.Options
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opts.BindFlags(flag.CommandLine)
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ctrlConf, err := flags.ParseFlags()
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if err != nil {
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log.Fatalf("Error parsing flags: %v\n", err)
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}
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if ctrlConf.ShowVersion {
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fmt.Printf("Version=%v GitCommit=%v\n", version, gitCommit)
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os.Exit(0)
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}
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ctrl.SetLogger(ctrlZap.New(ctrlZap.UseFlagOptions(&opts)))
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mgr, err := ctrl.NewManager(ctrl.GetConfigOrDie(), ctrl.Options{
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Scheme: scheme,
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Cache: cache.Options{
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DefaultNamespaces: map[string]cache.Config{
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ctrlConf.Namespace: {},
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},
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},
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Metrics: server.Options{
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BindAddress: ctrlConf.MetricsAddr,
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},
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HealthProbeBindAddress: ctrlConf.ProbeAddr,
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LeaderElection: ctrlConf.EnableLeaderElection,
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})
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if err != nil {
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setupLog.Error(err, "unable to start manager")
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os.Exit(1)
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}
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// setup sc client
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scCli, err := config.NewServerscomClient()
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if err != nil {
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setupLog.Error(err, "unable to create servers.com client")
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os.Exit(1)
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}
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scCli.SetupUserAgent(fmt.Sprintf("%s/%s %s", ctrlConf.ControllerName, version, gitCommit))
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// setup gw class reconciler
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if err = (&controller.GatewayClassReconciler{
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Client: mgr.GetClient(),
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ControllerName: ctrlConf.ControllerName,
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}).SetupWithManager(mgr); err != nil {
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setupLog.Error(err, "unable to create controller", "controller", "GatewayClass")
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os.Exit(1)
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}
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// setup gw reconciler
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if err = (&controller.GatewayReconciler{
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Client: mgr.GetClient(),
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Recorder: mgr.GetEventRecorderFor("gateway-controller"),
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ControllerName: ctrlConf.ControllerName,
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GatewayClassName: ctrlConf.GatewayClassName,
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LBMgr: lbsrv.NewManager(scCli),
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TLSMgr: tlssrv.NewManager(scCli),
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}).SetupWithManager(mgr); err != nil {
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setupLog.Error(err, "unable to create controller", "controller", "Gateway")
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os.Exit(1)
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}
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// Health checks
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if err := mgr.AddHealthzCheck("healthz", healthz.Ping); err != nil {
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setupLog.Error(err, "unable to set up health check")
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os.Exit(1)
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}
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if err := mgr.AddReadyzCheck("readyz", healthz.Ping); err != nil {
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setupLog.Error(err, "unable to set up ready check")
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os.Exit(1)
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}
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setupLog.Info("starting manager", "version", version, "gitCommit", gitCommit)
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if err := mgr.Start(ctrl.SetupSignalHandler()); err != nil {
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setupLog.Error(err, "problem running manager")
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os.Exit(1)
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}
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}

‎examples/README.md‎

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# Gateway API Controller — Example Installation for local machine
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This directory contains sample manifests and step-by-step instructions for deploying a Gateway API controller on Kubernetes local setup.
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## Prerequisites
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- A running Kubernetes cluster (tested with Docker Desktop)
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- [kubectl](https://kubernetes.io/docs/tasks/tools/)
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- Your controller image built locally as `gw-controller:local`
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The image can be built by running the following command from the root of this repo:
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```bash
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CGO_ENABLED=0 GOOS=linux go build -o api-gateway-controller cmd/main.go && docker build -t gw-controller:local .
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```
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## Installation Steps
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### 1. Install Gateway API CRDs
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Apply the latest CRDs directly from the official repository:
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```bash
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kubectl apply -f https://github.com/kubernetes-sigs/gateway-api/releases/download/v1.3.0/standard-install.yaml
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```
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### 2. Create the Namespace
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```bash
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kubectl apply -f namespace.yaml
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```
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### 3. Create the serverscom API Secret
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Update the values to your actual credentials before applying:
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```bash
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kubectl apply -f secret.yaml
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```
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### 4. Create ServiceAccount, RBAC, and Bindings
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```bash
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kubectl apply -f rbac.yaml
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```
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### 5. Deploy the Gateway Controller
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```bash
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kubectl apply -f deployment.yaml
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```
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## Files Overview
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- `namespace.yaml` — Namespace for the controller
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- `secret.yaml` — API credentials for serverscom (update these for your environment)
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- `rbac.yaml` — ServiceAccount and required RBAC permissions
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- `deployment.yaml` — Deployment manifest for the controller
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> **Note:** Adjust the image ( image with gw controller should exist ), environment variables, and secrets as needed for your cluster.

‎examples/deployment.yaml‎

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apiVersion: apps/v1
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kind: Deployment
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metadata:
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name: gw-controller
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namespace: gateway-serverscom
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spec:
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replicas: 1
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selector:
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matchLabels:
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app: gw-controller
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template:
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metadata:
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labels:
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app: gw-controller
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spec:
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serviceAccountName: gw-controller
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containers:
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- name: gw-controller
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image: gw-controller:local
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imagePullPolicy: IfNotPresent
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args:
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# - "--zap-log-level=debug"
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env:
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- name: SC_ACCESS_TOKEN
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valueFrom:
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secretKeyRef:
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name: serverscom
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key: access-token
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- name: SC_API_URL
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valueFrom:
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secretKeyRef:
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name: serverscom
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key: api-url
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- name: SC_CLUSTER_ID
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valueFrom:
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secretKeyRef:
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name: serverscom
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key: cluster-id
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- name: SC_LOCATION_ID
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valueFrom:
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secretKeyRef:
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name: serverscom
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key: location-id

‎examples/namespace.yaml‎

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apiVersion: v1
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kind: Namespace
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metadata:
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name: gateway-serverscom

‎examples/rbac.yaml‎

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apiVersion: v1
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kind: ServiceAccount
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metadata:
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name: gw-controller
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namespace: gateway-serverscom
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---
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apiVersion: rbac.authorization.k8s.io/v1
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kind: ClusterRole
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metadata:
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name: system:controller:gw-controller
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rules:
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- apiGroups: [""]
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resources: ["secrets", "endpoints", "services", "pods", "nodes", "namespaces", "configmaps", "events"]
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verbs: ["get", "list", "watch", "update", "create", "patch"]
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- apiGroups: ["gateway.networking.k8s.io"]
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resources: ["gatewayclasses", "gateways", "httproutes", "grpcroutes", "referencegrants"]
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verbs: ["get", "list", "watch", "update", "create", "patch"]
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- apiGroups: ["gateway.networking.k8s.io"]
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resources: ["gatewayclasses/status", "gateways/status"]
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verbs: ["update", "patch"]
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- apiGroups: ["coordination.k8s.io"]
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resources: ["leases"]
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verbs: ["get", "watch", "list", "create", "update"]
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---
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apiVersion: rbac.authorization.k8s.io/v1
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kind: ClusterRoleBinding
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metadata:
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name: system:controller:gw-controller
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roleRef:
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apiGroup: rbac.authorization.k8s.io
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kind: ClusterRole
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name: system:controller:gw-controller
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subjects:
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- kind: ServiceAccount
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name: gw-controller
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namespace: gateway-serverscom

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