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controlplane.go
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controlplane.go
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package nutanix
import (
"context"
"fmt"
"time"
"github.com/go-logr/logr"
nutanixv1 "github.com/nutanix-cloud-native/cluster-api-provider-nutanix/api/v1beta1"
corev1 "k8s.io/api/core/v1"
addonsv1 "sigs.k8s.io/cluster-api/exp/addons/api/v1beta1"
"github.com/aws/eks-anywhere/pkg/api/v1alpha1"
"github.com/aws/eks-anywhere/pkg/clients/kubernetes"
"github.com/aws/eks-anywhere/pkg/cluster"
"github.com/aws/eks-anywhere/pkg/clusterapi"
yamlcapi "github.com/aws/eks-anywhere/pkg/clusterapi/yaml"
"github.com/aws/eks-anywhere/pkg/constants"
"github.com/aws/eks-anywhere/pkg/yamlutil"
)
// BaseControlPlane represents a CAPI Nutanix control plane.
type BaseControlPlane = clusterapi.ControlPlane[*nutanixv1.NutanixCluster, *nutanixv1.NutanixMachineTemplate]
// ControlPlane holds the Nutanix specific objects for a CAPI Nutanix control plane.
type ControlPlane struct {
BaseControlPlane
ConfigMaps []*corev1.ConfigMap
ClusterResourceSets []*addonsv1.ClusterResourceSet
}
// Objects returns the control plane objects associated with the Nutanix cluster.
func (p ControlPlane) Objects() []kubernetes.Object {
o := p.BaseControlPlane.Objects()
o = appendKubeObjects[*corev1.ConfigMap](o, p.ConfigMaps)
o = appendKubeObjects[*addonsv1.ClusterResourceSet](o, p.ClusterResourceSets)
return o
}
// ControlPlaneBuilder defines the builder for all objects in the CAPI Nutanix control plane.
type ControlPlaneBuilder struct {
BaseBuilder *yamlcapi.ControlPlaneBuilder[*nutanixv1.NutanixCluster, *nutanixv1.NutanixMachineTemplate]
ControlPlane *ControlPlane
}
// BuildFromParsed implements the base yamlcapi.BuildFromParsed and processes any additional objects for the Nutanix control plane.
func (b *ControlPlaneBuilder) BuildFromParsed(lookup yamlutil.ObjectLookup) error {
if err := b.BaseBuilder.BuildFromParsed(lookup); err != nil {
return err
}
b.ControlPlane.BaseControlPlane = *b.BaseBuilder.ControlPlane
buildObjects(b.ControlPlane, lookup)
return nil
}
// ControlPlaneSpec builds a nutanix ControlPlane definition based on an eks-a cluster spec.
func ControlPlaneSpec(ctx context.Context, logger logr.Logger, client kubernetes.Client, spec *cluster.Spec) (*ControlPlane, error) {
ndcs := spec.NutanixDatacenter.Spec
machineConfigs := spec.NutanixMachineConfigs
controlPlaneMachineSpec, etcdMachineSpec := getControlPlaneMachineSpecs(machineConfigs, &spec.Cluster.Spec.ControlPlaneConfiguration, spec.Cluster.Spec.ExternalEtcdConfiguration)
for _, machineConfig := range machineConfigs {
machineConfig.SetDefaults()
}
creds := GetCredsFromEnv()
templateBuilder := NewNutanixTemplateBuilder(&ndcs, controlPlaneMachineSpec, etcdMachineSpec, nil, creds, time.Now)
controlPlaneYaml, err := generateControlPlaneYAML(templateBuilder, spec)
if err != nil {
return nil, err
}
cp, err := parseControlPlaneYAML(logger, controlPlaneYaml)
if err != nil {
return nil, err
}
if err := cp.UpdateImmutableObjectNames(ctx, client, getMachineTemplate, machineTemplateEquals); err != nil {
return nil, err
}
return cp, nil
}
func getControlPlaneMachineSpecs(machineConfigs map[string]*v1alpha1.NutanixMachineConfig, controlPlaneConfig *v1alpha1.ControlPlaneConfiguration, externalEtcdConfig *v1alpha1.ExternalEtcdConfiguration) (*v1alpha1.NutanixMachineConfigSpec, *v1alpha1.NutanixMachineConfigSpec) {
var controlPlaneMachineSpec, etcdMachineSpec *v1alpha1.NutanixMachineConfigSpec
if controlPlaneConfig.MachineGroupRef != nil && machineConfigs[controlPlaneConfig.MachineGroupRef.Name] != nil {
controlPlaneMachineSpec = &machineConfigs[controlPlaneConfig.MachineGroupRef.Name].Spec
}
if externalEtcdConfig != nil && externalEtcdConfig.MachineGroupRef != nil && machineConfigs[externalEtcdConfig.MachineGroupRef.Name] != nil {
etcdMachineSpec = &machineConfigs[externalEtcdConfig.MachineGroupRef.Name].Spec
}
return controlPlaneMachineSpec, etcdMachineSpec
}
func generateControlPlaneYAML(templateBuilder *TemplateBuilder, spec *cluster.Spec) ([]byte, error) {
return templateBuilder.GenerateCAPISpecControlPlane(
spec,
func(values map[string]interface{}) {
values["controlPlaneTemplateName"] = clusterapi.ControlPlaneMachineTemplateName(spec.Cluster)
values["etcdTemplateName"] = clusterapi.EtcdMachineTemplateName(spec.Cluster)
},
)
}
func parseControlPlaneYAML(logger logr.Logger, controlPlaneYAML []byte) (*ControlPlane, error) {
parser, builder, err := newControlPlaneParser(logger)
if err != nil {
return nil, err
}
if err := parser.Parse(controlPlaneYAML, builder); err != nil {
return nil, err
}
return builder.ControlPlane, nil
}
func newControlPlaneParser(logger logr.Logger) (*yamlutil.Parser, *ControlPlaneBuilder, error) {
parser, baseBuilder, err := yamlcapi.NewControlPlaneParserAndBuilder(
logger,
yamlutil.NewMapping(
"NutanixCluster",
func() *nutanixv1.NutanixCluster {
return &nutanixv1.NutanixCluster{}
},
),
yamlutil.NewMapping(
"NutanixMachineTemplate",
func() *nutanixv1.NutanixMachineTemplate {
return &nutanixv1.NutanixMachineTemplate{}
},
),
)
if err != nil {
return nil, nil, fmt.Errorf("failed building nutanix control plane parser: %w", err)
}
err = parser.RegisterMappings(
yamlutil.NewMapping(
constants.ConfigMapKind,
func() yamlutil.APIObject {
return &corev1.ConfigMap{}
},
),
yamlutil.NewMapping(
constants.ClusterResourceSetKind,
func() yamlutil.APIObject {
return &addonsv1.ClusterResourceSet{}
},
),
)
if err != nil {
return nil, nil, fmt.Errorf("failed registering nutanix control plane mappings: %w", err)
}
builder := &ControlPlaneBuilder{
BaseBuilder: baseBuilder,
ControlPlane: &ControlPlane{},
}
return parser, builder, nil
}
func appendKubeObjects[V kubernetes.Object](objList []kubernetes.Object, objToAdd []V) []kubernetes.Object {
for _, obj := range objToAdd {
objList = append(objList, obj)
}
return objList
}
func buildObjects(cp *ControlPlane, lookup yamlutil.ObjectLookup) {
for _, obj := range lookup {
switch obj.GetObjectKind().GroupVersionKind().Kind {
case constants.ConfigMapKind:
cp.ConfigMaps = append(cp.ConfigMaps, obj.(*corev1.ConfigMap))
case constants.ClusterResourceSetKind:
cp.ClusterResourceSets = append(cp.ClusterResourceSets, obj.(*addonsv1.ClusterResourceSet))
}
}
}