For example, the following code creates and then interacts with a Galley and Pilot component:

```go
func TestMyLogic(t *testing.T) {
    framework.
        NewTest(t).
        Run(func(ctx framework.TestContext) {
            // Create the components.
            g := galley.NewOrFail(ctx, ctx, galley.Config{})
            p := pilot.NewOrFail(ctx, ctx, pilot.Config {})

        image: docker.io/istio/citadel:1.2.2
`

	testPodYaml1 := `apiVersion: v1
kind: Pod
metadata:
  name: istio-galley-75bcd59768-hpt5t
  namespace: istio-system
  labels:
    istio: galley
spec:
  containers:
  - name: galley
    image: docker.io/istio/galley:1.1.8
    ports:
    - containerPort: 443
      protocol: TCP
    - containerPort: 15014
      protocol: TCP

	})
	b.Run("WithXY", func(b *testing.B) {
		runGCDExt(b, aSize, bSize, true)
	})
}

func runGCDExt(b *testing.B, aSize, bSize uint, calcXY bool) {
	b.StopTimer()
	var r = rand.New(rand.NewSource(1234))
	aa := randInt(r, aSize)
	bb := randInt(r, bSize)
	var x, y *Int
	if calcXY {
		x = new(Int)
		y = new(Int)
	}
	b.StartTimer()
	for i := 0; i < b.N; i++ {
		new(Int).GCD(x, y, aa, bb)
	}
}

## Writing Analyzers

### 1. Create the code

Analyzers need to implement the Analyzer interface ( in the `galley/pkg/config/analysis` package). They should be created under the analyzers subdirectory, and given their own appropriate subpackage.

An annotated example:

```go
package virtualservice

// <imports here>

	_ = resultBuilder.Add(collections.ValidatingWebhookConfiguration)
	_ = resultBuilder.Add(collections.MutatingWebhookConfiguration)
	return resultBuilder.Build()
}

// the following code minimally duplicates logic from galley/pkg/config/source/kube/rt/known.go
// without propagating the many dependencies it comes with.

var knownTypes = map[string]struct{}{
	asTypesKey("", "Service"):   {},
	asTypesKey("", "Namespace"): {},

/tests/integration/conformance/                                  @istio/wg-test-and-release-maintainers
/tests/integration/framework/                                    @istio/wg-test-and-release-maintainers
/tests/integration/galley/                                       @istio/wg-networking-maintainers
/tests/integration/telemetry/                                    @istio/wg-policies-and-telemetry-maintainers

}

// AllValidationAnalyzers returns a slice with a validation analyzer for each Istio schema
// This automation comes with an assumption: that the collection names used by the schema match the metadata used by Galley components
func AllValidationAnalyzers() []analysis.Analyzer {
	result := make([]analysis.Analyzer, 0)
	collections.Istio.ForEach(func(s sresource.Schema) (done bool) {
		result = append(result, &ValidationAnalyzer{s: s})

	Malayalam            Tag = Tag{language: mlIndex, locale: mlIndex}
	Mongolian            Tag = Tag{language: mnIndex, locale: mnIndex}
	Marathi              Tag = Tag{language: mrIndex, locale: mrIndex}
	Malay                Tag = Tag{language: msIndex, locale: msIndex}
	Burmese              Tag = Tag{language: myIndex, locale: myIndex}
	Nepali               Tag = Tag{language: neIndex, locale: neIndex}

func handleNamespace(istioNamespace string) string {
	if istioNamespace == "" {
		istioNamespace = constants.IstioSystemNamespace
	}
	return istioNamespace
}

// TODO(nmittler): Remove this once Pilot migrates to galley schema.
func convertObjectFromUnstructured(schema resource.Schema, un *unstructured.Unstructured, domain string) (*config.Config, error) {
	data, err := fromSchemaAndJSONMap(schema, un.Object["spec"])
	if err != nil {

    - **Pilot** - Responsible for configuring the proxies at runtime.

    - **Citadel** - Responsible for certificate issuance and rotation.

    - **Galley** - Responsible for validating, ingesting, aggregating, transforming and distributing config within Istio.

- **Operator** - The component provides user friendly options to operate the Istio service mesh.

## Repositories