func (a *APILoadBalancers) Validate() error {
	var errors util.ValidateErrors
	cc := &container.Containers{
		PreviousState: a.State,
		DesiredState:  container.ContainersState{},
	}
	for i, lb := range a.APILoadBalancers {
		lb := lb
		a.propagateInstance(&lb)
		lbx, err := lb.New()
		if err != nil {
			errors = append(errors, fmt.Errorf("creating load balancer instance %q: %w", i, err))
			continue
		}
		lbxHcc, err := lbx.ToHostConfiguredContainer()
		if err != nil {
			errors = append(errors, fmt.Errorf("creating load balancer %q container configuration: %w", i, err))
			continue
		}
		cc.DesiredState[strconv.Itoa(i)] = lbxHcc
	}
	noContainersDefined := len(a.State) == 0 && len(a.APILoadBalancers) == 0
	if noContainersDefined {
		errors = append(errors, fmt.Errorf("at least one load balancer must be defined if state is empty"))
	}
	if _, err := cc.New(); !noContainersDefined && err != nil {
		errors = append(errors, fmt.Errorf("creating containers object: %w", err))
	}
	return errors.Return()
}
Validate validates APILoadBalancers struct.
package apiloadbalancer
import (
	"fmt"
	"strconv"
	"sigs.k8s.io/yaml"
	"github.com/flexkube/libflexkube/internal/util"
	"github.com/flexkube/libflexkube/pkg/container"
	"github.com/flexkube/libflexkube/pkg/host"
	"github.com/flexkube/libflexkube/pkg/host/transport/ssh"
	"github.com/flexkube/libflexkube/pkg/types"
)
type APILoadBalancers struct {
	Image string `json:"image,omitempty"`
	SSH *ssh.Config `json:"ssh,omitempty"`
	Servers []string `json:"servers,omitempty"`
	APILoadBalancers []APILoadBalancer `json:"apiLoadBalancers,omitempty"`
	Name string `json:"name,omitempty"`
	HostConfigPath string `json:"hostConfigPath,omitempty"`
	BindAddress string `json:"bindAddress,omitempty"`
	State container.ContainersState `json:"state,omitempty"`
}
type apiLoadBalancers struct {
	containers container.ContainersInterface
}
func (a *APILoadBalancers) propagateInstance(i *APILoadBalancer) {
	i.Image = util.PickString(i.Image, a.Image)
	i.Servers = util.PickStringSlice(i.Servers, a.Servers)
	i.Host = host.BuildConfig(i.Host, host.Host{
		SSHConfig: a.SSH,
	})
	i.Name = util.PickString(i.Name, a.Name)
	i.HostConfigPath = util.PickString(i.HostConfigPath, a.HostConfigPath)
	i.BindAddress = util.PickString(i.BindAddress, a.BindAddress)
}
func (a *APILoadBalancers) New() (types.Resource, error) {
	if err := a.Validate(); err != nil {
		return nil, fmt.Errorf("validating API Load balancers configuration: %w", err)
	}
	cc := &container.Containers{
		PreviousState: a.State,
		DesiredState:  container.ContainersState{},
	}
	for i, lb := range a.APILoadBalancers {
		lb := lb
		a.propagateInstance(&lb)
		lbx, _ := lb.New()                            
		lbxHcc, _ := lbx.ToHostConfiguredContainer()  
		cc.DesiredState[strconv.Itoa(i)] = lbxHcc
	}
	c, _ := cc.New()  
	return &apiLoadBalancers{
		containers: c,
	}, nil
}