Add goreleaser

- rename controller
- remove cli

cmd/cli/main.go

@@ -1,98 +0,0 @@
-package main
-
-import (
-	"flag"
-	"log"
-	"time"
-
-	"fmt"
-
-	"os"
-
-	"github.com/fatih/color"
-	istioclientset "github.com/knative/pkg/client/clientset/versioned"
-	"github.com/knative/pkg/signals"
-	"github.com/stefanprodan/steerer/pkg/logging"
-	"github.com/stefanprodan/steerer/pkg/rollout"
-	"k8s.io/client-go/kubernetes"
-	_ "k8s.io/client-go/plugin/pkg/client/auth/gcp"
-	"k8s.io/client-go/tools/clientcmd"
-)
-
-var (
-	namespace       string
-	masterURL       string
-	kubeconfig      string
-	window          time.Duration
-	promURL         string
-	threshold       float64
-	thresholdWindow string
-)
-
-func init() {
-	flag.StringVar(&kubeconfig, "kubeconfig", "", "Path to a kubeconfig. Only required if out-of-cluster.")
-	flag.StringVar(&masterURL, "master", "", "The address of the Kubernetes API server. Overrides any value in kubeconfig. Only required if out-of-cluster.")
-
-	flag.StringVar(&namespace, "namespace", "", "Kubernetes namespace")
-	flag.StringVar(&promURL, "prometheus", "https://prometheus.istio.weavedx.com", "Prometheus URL")
-	flag.DurationVar(&window, "window", 10*time.Second, "wait interval between deployment rollouts")
-	flag.Float64Var(&threshold, "threshold", 99, "HTTP request success rate threshold (1-99) to halt the rollout")
-	flag.StringVar(&thresholdWindow, "interval", "1m", "HTTP request success rate query interval 30s 1m")
-}
-
-func main() {
-	flag.Parse()
-	os.Setenv("console", "true")
-	logger, err := logging.NewLogger("error")
-	if err != nil {
-		log.Fatalf("Error creating logger: %v", err)
-	}
-	defer logger.Sync()
-
-	cfg, err := clientcmd.BuildConfigFromFlags(masterURL, kubeconfig)
-	if err != nil {
-		logger.Fatalf("Error building kubeconfig: %v", err)
-	}
-
-	kubeClient, err := kubernetes.NewForConfig(cfg)
-	if err != nil {
-		logger.Fatalf("Error building kubernetes clientset: %v", err)
-	}
-
-	istioClient, err := istioclientset.NewForConfig(cfg)
-	if err != nil {
-		logger.Fatalf("Error building shared clientset: %v", err)
-	}
-
-	ver, err := kubeClient.Discovery().ServerVersion()
-	if err != nil {
-		logger.Fatalf("Error calling Kubernetes API: %v", err)
-	}
-	logger.Infof("Connected to Kubernetes API %v", ver)
-
-	stopCh := signals.SetupSignalHandler()
-
-	obs, err := rollout.NewObserver(promURL, thresholdWindow)
-	if err != nil {
-		logger.Fatalf("Error parsing Prometheus URL: %v", err)
-	}
-
-	fmt.Println(
-		"starting progressive deployment engine control loop",
-		color.GreenString("%vs", window.Seconds()),
-		"threshold",
-		color.GreenString("%v%%", threshold),
-		"range",
-		color.GreenString("%v", thresholdWindow))
-	deployer := rollout.NewDeployer(kubeClient, istioClient, obs, threshold, logger)
-	deployer.Run(namespace)
-	tickChan := time.NewTicker(window).C
-	for {
-		select {
-		case <-tickChan:
-			deployer.Run(namespace)
-		case <-stopCh:
-			return
-		}
-	}
-}