Refactor e2e tests

Signed-off-by: Stefan Prodan <stefan.prodan@gmail.com>

cmd/flux/main_e2e_test.go

@@ -0,0 +1,59 @@
+// +build e2e
+
+package main
+
+import (
+	"context"
+	"fmt"
+	"os"
+	"testing"
+
+	"github.com/fluxcd/flux2/internal/utils"
+)
+
+func TestMain(m *testing.M) {
+	// Ensure tests print consistent timestamps regardless of timezone
+	os.Setenv("TZ", "UTC")
+
+	// Install Flux
+	km, err := NewTestEnvKubeManager(ExistingClusterMode)
+	if err != nil {
+		panic(fmt.Errorf("error creating kube manager: '%w'", err))
+	}
+	rootCtx.kubeManager = km
+	output, err := executeCommand("install --components-extra=image-reflector-controller,image-automation-controller")
+	if err != nil {
+		panic(fmt.Errorf("install falied: %s error:'%w'", output, err))
+	}
+
+	// Run tests
+	code := m.Run()
+
+	// Uninstall Flux
+	output, err = executeCommand("uninstall -s --keep-namespace")
+	if err != nil {
+		panic(fmt.Errorf("uninstall falied: %s error:'%w'", output, err))
+	}
+
+	// Delete namespace and wait for finalisation
+	kubectlArgs := []string{"delete", "namespace", "flux-system"}
+	_, err = utils.ExecKubectlCommand(context.TODO(), utils.ModeStderrOS, rootArgs.kubeconfig, rootArgs.kubecontext, kubectlArgs...)
+	if err != nil {
+		panic(fmt.Errorf("delete namespace error:'%w'", err))
+	}
+
+	os.Exit(code)
+}
+
+func setupTestNamespace(namespace string) (func(), error) {
+	kubectlArgs := []string{"create", "namespace", namespace}
+	_, err := utils.ExecKubectlCommand(context.TODO(), utils.ModeStderrOS, rootArgs.kubeconfig, rootArgs.kubecontext, kubectlArgs...)
+	if err != nil {
+		return nil, err
+	}
+
+	return func() {
+		kubectlArgs := []string{"delete", "namespace", namespace}
+		utils.ExecKubectlCommand(context.TODO(), utils.ModeCapture, rootArgs.kubeconfig, rootArgs.kubecontext, kubectlArgs...)
+	}, nil
+}