arriqaaq

type Car interface {
  Drive() string
}

type SportsCar struct {}

func (s SportsCar) Drive() string {
  return "Vroom vroom!"
}

arriqaaq

config, err := clientcmd.BuildConfigFromFlags("", "~/.kube/config")
if err != nil {
    log.Fatal(err)
}
clientset, err := kubernetes.NewForConfig(config)
if err != nil {
    log.Fatal(err)
}

arriqaaq

conn, err := net.Dial("tcp", "www.google.com:80")
if err != nil {
    log.Fatal(err)
}
defer conn.Close()

arriqaaq

type Car interface {
  Drive() string
}

type SportsCar struct {}

func (s SportsCar) Drive() string {
  return "Vroom vroom!"
}

arriqaaq

p := NewPerson(func(p *Person) {
	p.Name = "John"
	p.Age = 25
	p.Address = "123 Main St"
	p.Phone = "555-555-5555"
	p.Email = "[email protected]"
})

arriqaaq

func NewPerson(builder func(p *Person)) *Person {
	person := &Person{}
	builder(person)
	return person
}

arriqaaq

func main() {
	person := NewPersonBuilder().
		WithName("John").
		WithAge(25).
		WithAddress("123 Main St").
		WithPhone("555-555-5555").
		WithEmail("[email protected]").
		Build()
}

arriqaaq

type PersonBuilder struct {
	person Person
}

func NewPersonBuilder() *PersonBuilder {
	return &PersonBuilder{
		person: Person{},
	}
}

arriqaaq

type Person struct {
	Name     string
	Age      int
	Address  string
	Phone    string
	Email    string
}

arriqaaq

package main

import (
	"github.com/go-logr/logr"
	"sigs.k8s.io/controller-runtime/pkg/client"
	"sigs.k8s.io/controller-runtime/pkg/controller"
	"sigs.k8s.io/controller-runtime/pkg/handler"
	"sigs.k8s.io/controller-runtime/pkg/source"
)