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setup.go
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setup.go
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package envtest
import (
"context"
"go/build"
"os"
"os/signal"
"path/filepath"
"runtime"
"sync"
"syscall"
"testing"
"time"
"github.com/google/uuid"
"github.com/stretchr/testify/require"
corev1 "k8s.io/api/core/v1"
netv1 "k8s.io/api/networking/v1"
metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
k8sruntime "k8s.io/apimachinery/pkg/runtime"
"k8s.io/client-go/discovery"
"k8s.io/client-go/rest"
"k8s.io/client-go/tools/clientcmd"
ctrlclient "sigs.k8s.io/controller-runtime/pkg/client"
"sigs.k8s.io/controller-runtime/pkg/envtest"
"github.com/kong/kubernetes-ingress-controller/v3/internal/controllers/gateway"
"github.com/kong/kubernetes-ingress-controller/v3/internal/gatewayapi"
"github.com/kong/kubernetes-ingress-controller/v3/internal/store"
"github.com/kong/kubernetes-ingress-controller/v3/internal/util/builder"
"github.com/kong/kubernetes-ingress-controller/v3/test/consts"
)
type Options struct {
InstallGatewayCRDs bool
InstallKongCRDs bool
}
var DefaultEnvTestOpts = Options{
InstallGatewayCRDs: true,
InstallKongCRDs: true,
}
type OptionModifier func(Options) Options
func WithInstallKongCRDs(install bool) OptionModifier {
return func(opts Options) Options {
opts.InstallKongCRDs = install
return opts
}
}
func WithInstallGatewayCRDs(install bool) OptionModifier {
return func(opts Options) Options {
opts.InstallGatewayCRDs = install
return opts
}
}
// Setup sets up the envtest environment which will be stopped on test cleanup
// using t.Cleanup().
//
// Note: If you want apiserver output on stdout set
// KUBEBUILDER_ATTACH_CONTROL_PLANE_OUTPUT to true when running tests.
func Setup(t *testing.T, scheme *k8sruntime.Scheme, optModifiers ...OptionModifier) *rest.Config {
t.Helper()
testEnv := &envtest.Environment{
ControlPlaneStopTimeout: time.Second * 60,
}
t.Logf("starting envtest environment for test %s...", t.Name())
cfg, err := testEnv.Start()
require.NoError(t, err)
opts := DefaultEnvTestOpts
for _, mod := range optModifiers {
opts = mod(opts)
}
if opts.InstallGatewayCRDs {
installGatewayCRDs(t, scheme, cfg)
}
if opts.InstallKongCRDs {
installKongCRDs(t, scheme, cfg)
}
wg := sync.WaitGroup{}
wg.Add(1)
done := make(chan struct{})
ch := make(chan os.Signal, 1)
signal.Notify(ch, os.Interrupt, syscall.SIGTERM)
go func() {
defer wg.Done()
select {
case <-ch:
_ = testEnv.Stop()
case <-done:
_ = testEnv.Stop()
}
}()
config, err := clientcmd.BuildConfigFromFlags(cfg.Host, "")
require.NoError(t, err)
config.CertData = cfg.CertData
config.CAData = cfg.CAData
config.KeyData = cfg.KeyData
discoveryClient, err := discovery.NewDiscoveryClientForConfig(config)
require.NoError(t, err)
i, err := discoveryClient.ServerVersion()
require.NoError(t, err)
t.Logf("envtest environment (%s) started at %s", i, cfg.Host)
t.Cleanup(func() {
t.Helper()
t.Logf("stopping envtest environment for test %s", t.Name())
close(done)
wg.Wait()
})
return cfg
}
func installGatewayCRDs(t *testing.T, scheme *k8sruntime.Scheme, cfg *rest.Config) {
t.Helper()
gatewayCRDPath := filepath.Join(build.Default.GOPATH, "pkg", "mod", "sigs.k8s.io", "gateway-api@"+consts.GatewayAPIVersion, "config", "crd", "experimental")
_, err := envtest.InstallCRDs(cfg, envtest.CRDInstallOptions{
Scheme: scheme,
Paths: []string{gatewayCRDPath},
ErrorIfPathMissing: true,
})
require.NoError(t, err, "failed installing Gateway API CRDs")
}
func installKongCRDs(t *testing.T, scheme *k8sruntime.Scheme, cfg *rest.Config) {
t.Helper()
// extract project root path.
_, thisFilePath, _, _ := runtime.Caller(0) //nolint:dogsled
projectRoot := filepath.Join(filepath.Dir(thisFilePath), "..", "..")
// install Kong CRDs from config/crd/bases.
kongCRDPath := filepath.Join(projectRoot, "config", "crd", "bases")
kongIncubatorCRDPath := filepath.Join(projectRoot, "config", "crd", "incubator")
t.Logf("install Kong CRDs from manifests in %s", kongCRDPath)
_, err := envtest.InstallCRDs(cfg, envtest.CRDInstallOptions{
Scheme: scheme,
Paths: []string{kongCRDPath, kongIncubatorCRDPath},
ErrorIfPathMissing: true,
})
require.NoError(t, err)
}
func deployIngressClass(ctx context.Context, t *testing.T, name string, client ctrlclient.Client) { //nolint:unparam
t.Helper()
ingress := &netv1.IngressClass{
ObjectMeta: metav1.ObjectMeta{
Name: name,
},
Spec: netv1.IngressClassSpec{
Controller: store.IngressClassKongController,
},
}
require.NoError(t, client.Create(ctx, ingress))
}
// deployGateway deploys a Gateway, GatewayClass, and ingress service for use in tests.
func deployGateway(ctx context.Context, t *testing.T, client ctrlclient.Client) gatewayapi.Gateway {
ns := CreateNamespace(ctx, t, client)
publishSvc := corev1.Service{
ObjectMeta: metav1.ObjectMeta{
Namespace: ns.Name,
Name: PublishServiceName,
},
Spec: corev1.ServiceSpec{
Ports: builder.NewServicePort().
WithName("http").
WithProtocol(corev1.ProtocolTCP).
WithPort(8000).
IntoSlice(),
},
}
require.NoError(t, client.Create(ctx, &publishSvc))
t.Cleanup(func() { _ = client.Delete(ctx, &publishSvc) })
gwc := gatewayapi.GatewayClass{
Spec: gatewayapi.GatewayClassSpec{
ControllerName: gateway.GetControllerName(),
},
ObjectMeta: metav1.ObjectMeta{
Name: uuid.NewString(),
Annotations: map[string]string{
"konghq.com/gatewayclass-unmanaged": "placeholder",
},
},
}
require.NoError(t, client.Create(ctx, &gwc))
t.Cleanup(func() { _ = client.Delete(ctx, &gwc) })
gw := gatewayapi.Gateway{
Spec: gatewayapi.GatewaySpec{
GatewayClassName: gatewayapi.ObjectName(gwc.Name),
Listeners: []gatewayapi.Listener{
{
Name: "http",
Protocol: gatewayapi.HTTPProtocolType,
Port: gatewayapi.PortNumber(8000),
},
},
},
ObjectMeta: metav1.ObjectMeta{
Namespace: ns.Name,
Name: uuid.NewString(),
},
}
require.NoError(t, client.Create(ctx, &gw))
t.Cleanup(func() { _ = client.Delete(ctx, &gw) })
return gw
}