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common_elastigroup_gke.go
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common_elastigroup_gke.go
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package commons
import (
"fmt"
"log"
"github.com/hashicorp/terraform-plugin-sdk/v2/helper/schema"
"github.com/spotinst/spotinst-sdk-go/service/elastigroup/providers/gcp"
)
const (
ElastigroupGKEResourceName ResourceName = "spotinst_elastigroup_gke"
)
var ElastigroupGKEResource *ElastigroupGKETerraformResource
type ElastigroupGKETerraformResource struct {
GenericResource
}
type ElastigroupGKEWrapper struct {
elastigroup *gcp.Group
ClusterID string
ClusterZoneName string
}
type ImportGKEWrapper struct {
elastigroup *gcp.ImportGKEGroup
ClusterID string
ClusterZoneName string
}
// NewElastigroupGKEResource creates a new GKE resource
func NewElastigroupGKEResource(fieldMap map[FieldName]*GenericField) *ElastigroupGKETerraformResource {
return &ElastigroupGKETerraformResource{
GenericResource: GenericResource{
resourceName: ElastigroupGKEResourceName,
fields: NewGenericFields(fieldMap),
},
}
}
func (res *ElastigroupGKETerraformResource) OnImport(
templateGroup *gcp.Group,
resourceData *schema.ResourceData,
meta interface{}) (*gcp.ImportGKEGroup, error) {
if res.fields == nil || res.fields.fieldsMap == nil || len(res.fields.fieldsMap) == 0 {
return nil, fmt.Errorf("resource fields are nil or empty, cannot create")
}
gkeGroupImportWrapper := NewImportGKEWrapper()
gkeGroupImportWrapper.SetImport(&gcp.ImportGKEGroup{
AvailabilityZones: templateGroup.Compute.AvailabilityZones,
Capacity: &gcp.CapacityGKE{
Capacity: gcp.Capacity{
Minimum: templateGroup.Capacity.Minimum,
Maximum: templateGroup.Capacity.Maximum,
Target: templateGroup.Capacity.Target,
},
},
Name: templateGroup.Name,
InstanceTypes: &gcp.InstanceTypesGKE{
OnDemand: templateGroup.Compute.InstanceTypes.OnDemand,
Preemptible: templateGroup.Compute.InstanceTypes.Preemptible,
},
PreemptiblePercentage: templateGroup.Strategy.PreemptiblePercentage,
NodeImage: templateGroup.NodeImage,
})
return gkeGroupImportWrapper.GetImport(), nil
}
// OnCreate is called when creating a new resource block and returns a new elastigroup or an error.
func (res *ElastigroupGKETerraformResource) OnCreate(
resourceData *schema.ResourceData,
meta interface{}) (*gcp.Group, error) {
if res.fields == nil || res.fields.fieldsMap == nil || len(res.fields.fieldsMap) == 0 {
return nil, fmt.Errorf("resource fields are nil or empty, cannot create")
}
egWrapper := NewElastigroupGKEWrapper()
for _, field := range res.fields.fieldsMap {
if field.onCreate == nil {
continue
}
log.Printf(string(ResourceFieldOnCreate), field.resourceAffinity, field.fieldNameStr)
if err := field.onCreate(egWrapper, resourceData, meta); err != nil {
return nil, err
}
}
return egWrapper.GetElastigroup(), nil
}
func (res *ElastigroupGKETerraformResource) OnMerge(
importedGroup *gcp.Group,
resourceData *schema.ResourceData,
meta interface{}) (*gcp.Group, error) {
if res.fields == nil || res.fields.fieldsMap == nil || len(res.fields.fieldsMap) == 0 {
return nil, fmt.Errorf("resource fields are nil or empty, cannot create")
}
egWrapper := NewElastigroupGKEWrapper()
egWrapper.SetElastigroup(importedGroup)
for _, field := range res.fields.fieldsMap {
if field.onCreate == nil {
continue
}
log.Printf(string(ResourceFieldOnMerge), field.resourceAffinity, field.fieldNameStr)
if err := field.onCreate(egWrapper, resourceData, meta); err != nil {
return nil, err
}
}
return egWrapper.GetElastigroup(), nil
}
// OnRead is called when reading an existing resource and throws an error if it is unable to do so.
func (res *ElastigroupGKETerraformResource) OnRead(
elastigroup *gcp.Group,
resourceData *schema.ResourceData,
meta interface{}) error {
if res.fields == nil || res.fields.fieldsMap == nil || len(res.fields.fieldsMap) == 0 {
return fmt.Errorf("resource fields are nil or empty, cannot read")
}
gkeGroupWrapper := NewElastigroupGKEWrapper()
gkeGroupWrapper.SetElastigroup(elastigroup)
for _, field := range res.fields.fieldsMap {
if field.onRead == nil {
continue
}
log.Printf(string(ResourceFieldOnRead), field.resourceAffinity, field.fieldNameStr)
if err := field.onRead(gkeGroupWrapper, resourceData, meta); err != nil {
return err
}
}
return nil
}
// OnUpdate is called when updating an existing resource and returns
// an elastigroup with a bool indicating if had been updated, or an error.
func (res *ElastigroupGKETerraformResource) OnUpdate(
resourceData *schema.ResourceData,
meta interface{}) (bool, *gcp.Group, error) {
if res.fields == nil || res.fields.fieldsMap == nil || len(res.fields.fieldsMap) == 0 {
return false, nil, fmt.Errorf("resource fields are nil or empty, cannot update")
}
egWrapper := NewElastigroupGKEWrapper()
hasChanged := false
for _, field := range res.fields.fieldsMap {
if field.onUpdate == nil {
continue
}
if field.hasFieldChange(resourceData, meta) {
log.Printf(string(ResourceFieldOnUpdate), field.resourceAffinity, field.fieldNameStr)
if err := field.onUpdate(egWrapper, resourceData, meta); err != nil {
return false, nil, err
}
hasChanged = true
}
}
return hasChanged, egWrapper.GetElastigroup(), nil
}
// NewElastigroupGKEWrapper avoids parameter collisions and returns a GKE Elastigroup.
// Spotinst elastigroup must have a wrapper struct.
// The reason is that there are multiple fields that share the same elastigroup API object.
// the wrapper struct is intended to help reflect the field states into the elastigroup object properly.
func NewElastigroupGKEWrapper() *ElastigroupGCPWrapper {
return &ElastigroupGCPWrapper{
elastigroup: &gcp.Group{
Capacity: &gcp.Capacity{},
Compute: &gcp.Compute{
LaunchSpecification: &gcp.LaunchSpecification{},
InstanceTypes: &gcp.InstanceTypes{},
},
Integration: &gcp.Integration{},
Scaling: &gcp.Scaling{},
Strategy: &gcp.Strategy{},
},
}
}
func NewImportGKEWrapper() *ImportGKEWrapper {
return &ImportGKEWrapper{
elastigroup: &gcp.ImportGKEGroup{
Capacity: &gcp.CapacityGKE{},
},
}
}
func (egWrapper *ImportGKEWrapper) GetImport() *gcp.ImportGKEGroup {
return egWrapper.elastigroup
}
func (egWrapper *ImportGKEWrapper) SetImport(elastigroup *gcp.ImportGKEGroup) {
egWrapper.elastigroup = elastigroup
}
// GetElastigroup returns a wrapped elastigroup
func (egWrapper *ElastigroupGKEWrapper) GetElastigroup() *gcp.Group {
return egWrapper.elastigroup
}
// SetElastigroup applies elastigroup fields to the elastigroup wrapper.
func (egWrapper *ElastigroupGKEWrapper) SetElastigroup(elastigroup *gcp.Group) {
egWrapper.elastigroup = elastigroup
}
// SuppressIfImportedFromGKE suppresses a large diff between the state and user's template as a result of the import.
// users may update imported fields, but may not set them to null
func SuppressIfImportedFromGKE(k, old, new string, d *schema.ResourceData) bool {
if _, ok := d.GetOk(string("integration_gke")); ok {
if new == "" || new == "0" {
return true
}
if old == "true" && new == "false" {
return true
}
}
return false
}