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autoscaling_policy.go
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autoscaling_policy.go
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package gobizfly
import (
"context"
"encoding/json"
"errors"
"io"
"io/ioutil"
"net/http"
)
// ScalePolicy - information about a scale policy
type ScalePolicy struct {
BestEffort bool `json:"best_effort"`
CoolDown int `json:"cooldown"`
Event string `json:"event,omitempty"`
ID *string `json:"id,omitempty"`
MetricType string `json:"metric"`
RangeTime int `json:"range_time"`
ScaleSize int `json:"number"`
Threshold float64 `json:"threshold"`
Type *string `json:"type,omitempty"`
}
// DeletePolicyHooks represents a hooks was triggered when delete node in autoscaling group
type DeletePolicyHooks struct {
URL string `json:"url"`
Method *string `json:"method,omitempty"`
Params *map[string]interface{} `json:"params,omitempty"`
Headers *map[string]interface{} `json:"headers,omitempty"`
Verify *bool `json:"verify,omitempty"`
}
// DeletionPolicyInformation - represents a deletion policy
type DeletionPolicyInformation struct {
ID string `json:"id,omitempty"`
Criteria string `json:"criteria"`
DestroyAfterDeletion bool `json:"destroy_after_deletion,omitempty"`
GracePeriod int `json:"grace_period,omitempty"`
Hooks DeletePolicyHooks `json:"hooks,omitempty"`
ReduceDesiredCapacity bool `json:"reduce_desired_capacity,omitempty"`
}
// LoadBalancerPolicy - information of load balancer will be use for auto scaling group
type LoadBalancerPolicy struct {
LoadBalancerID string `json:"id"`
LoadBalancerName string `json:"name,omitempty"`
ServerGroupID string `json:"server_group_id"`
ServerGroupName string `json:"server_group_name,omitempty"`
ServerGroupPort int `json:"server_group_port"`
}
// LoadBalancerScalingPolicy represents payload load balancers in LoadBalancersPolicyCreateRequest/Update
type LoadBalancerScalingPolicy struct {
ID string `json:"load_balancer_id"`
Name string `json:"load_balancer_name,omitempty"`
TargetID string `json:"target_id"`
TargetName string `json:"target_name,omitempty"`
TargetType string `json:"target_type"`
}
// LoadBalancersPolicyCreateRequest represents payload in create a load balancer policy
type LoadBalancersPolicyCreateRequest struct {
CoolDown int `json:"cooldown,omitempty"`
Event string `json:"event,omitempty"`
LoadBalancers LoadBalancerScalingPolicy `json:"load_balancers,omitempty"`
MetricType string `json:"metric,omitempty"`
RangeTime int `json:"range_time,omitempty"`
ScaleSize int `json:"number,omitempty"`
Threshold int `json:"threshold,omitempty"`
}
// LoadBalancersPolicyUpdateRequest represents payload in create a load balancer policy
type LoadBalancersPolicyUpdateRequest struct {
CoolDown int `json:"cooldown,omitempty"`
Event string `json:"event,omitempty"`
LoadBalancers LoadBalancerScalingPolicy `json:"load_balancers,omitempty"`
MetricType string `json:"metric,omitempty"`
RangeTime int `json:"range_time,omitempty"`
ScaleSize int `json:"number,omitempty"`
Threshold int `json:"threshold,omitempty"`
}
// PolicyAutoScalingCreateRequest represents payload use create a policy
type PolicyAutoScalingCreateRequest struct {
CoolDown int `json:"cooldown,omitempty"`
Event string `json:"event,omitempty"`
MetricType string `json:"metric,omitempty"`
RangeTime int `json:"range_time,omitempty"`
ScaleSize int `json:"number,omitempty"`
Threshold int `json:"threshold,omitempty"`
Type string `json:"policy_type,omitempty"`
}
// PolicyDeletionCreateRequest represents payload use create a policy
type PolicyDeletionCreateRequest struct {
Criteria string `json:"criteria"`
DestroyAfterDeletion bool `json:"destroy_after_deletion,omitempty"`
GracePeriod int `json:"grace_period,omitempty"`
Hooks *DeletePolicyHooks `json:"hooks,omitempty"`
ReduceDesiredCapacity bool `json:"reduce_desired_capacity,omitempty"`
Type string `json:"policy_type,omitempty"`
}
// PolicyAutoScalingUpdateRequest represents payload use update a policy
type PolicyAutoScalingUpdateRequest struct {
CoolDown int `json:"cooldown,omitempty"`
Event string `json:"event,omitempty"`
MetricType string `json:"metric,omitempty"`
RangeTime int `json:"range_time,omitempty"`
ScaleSize int `json:"number,omitempty"`
Threshold int `json:"threshold,omitempty"`
}
// PolicyDeletionUpdateRequest represents payload use update a policy
type PolicyDeletionUpdateRequest struct {
Criteria string `json:"criteria"`
DestroyAfterDeletion bool `json:"destroy_after_deletion,omitempty"`
GracePeriod int `json:"grace_period,omitempty"`
Hooks *DeletePolicyHooks `json:"hooks,omitempty"`
ReduceDesiredCapacity bool `json:"reduce_desired_capacity,omitempty"`
Type string `json:"policy_type,omitempty"`
}
// TaskResponses is responses
type TaskResponses struct {
Message string `json:"message"`
TaskID string `json:"task_id,omitempty"`
}
// AutoScalingPolicies - information of policies using for auto scaling group
type AutoScalingPolicies struct {
ScaleInPolicies []ScalePolicy `json:"scale_in_policy,omitempty"`
ScaleOutPolicies []ScalePolicy `json:"scale_out_policy,omitempty"`
LoadBalancerPolicies LoadBalancerPolicy `json:"load_balancer_policy,omitempty"`
DeletionPolicy DeletionPolicyInformation `json:"deletion_policy,omitempty"`
DoingTasks []string `json:"doing_task,omitempty"`
}
// List autoscaling policies of the given cluster
func (p *policy) List(ctx context.Context, clusterID string) (*AutoScalingPolicies, error) {
if clusterID == "" {
return nil, errors.New("Auto Scaling Group ID is required")
}
req, err := p.client.NewRequest(ctx, http.MethodGet, autoScalingServiceName, p.resourcePath(clusterID), nil)
if err != nil {
return nil, err
}
resp, err := p.client.Do(ctx, req)
if err != nil {
return nil, err
}
defer resp.Body.Close()
var data = &AutoScalingPolicies{}
if err := json.NewDecoder(resp.Body).Decode(&data); err != nil {
return nil, err
}
return data, nil
}
// Delete an autoscaling policies of the given cluster
func (p *policy) Delete(ctx context.Context, clusterID, PolicyID string) error {
req, err := p.client.NewRequest(ctx, http.MethodDelete, autoScalingServiceName, p.itemPath(clusterID, PolicyID), nil)
if err != nil {
return err
}
resp, err := p.client.Do(ctx, req)
if err != nil {
return err
}
_, _ = io.Copy(ioutil.Discard, resp.Body)
return resp.Body.Close()
}
// CreateAutoScaling - Create an autoscaling for the given cluster
func (p *policy) CreateAutoScaling(ctx context.Context, clusterID string, pcr *PolicyAutoScalingCreateRequest) (*TaskResponses, error) {
pcr.Type = policyTypeAutoScaling
req, err := p.client.NewRequest(ctx, http.MethodPost, autoScalingServiceName, p.resourcePath(clusterID), &pcr)
if err != nil {
return nil, err
}
resp, err := p.client.Do(ctx, req)
if err != nil {
return nil, err
}
data := &TaskResponses{}
if err := json.NewDecoder(resp.Body).Decode(data); err != nil {
return nil, err
}
return data, nil
}
// CreateDeletion - Create a deletion policy for the given cluster
func (p *policy) CreateDeletion(ctx context.Context, clusterID string, pcr *PolicyDeletionCreateRequest) (*TaskResponses, error) {
pcr.Type = policyTypeDeletion
req, err := p.client.NewRequest(ctx, http.MethodPost, autoScalingServiceName, p.resourcePath(clusterID), &pcr)
if err != nil {
return nil, err
}
resp, err := p.client.Do(ctx, req)
if err != nil {
return nil, err
}
data := &TaskResponses{}
if err := json.NewDecoder(resp.Body).Decode(data); err != nil {
return nil, err
}
return data, nil
}
// CreateLoadBalancers - Create a load balancers for the given cluster
func (p *policy) CreateLoadBalancers(ctx context.Context, clusterID string, lbpcr *LoadBalancersPolicyCreateRequest) (*TaskResponses, error) {
req, err := p.client.NewRequest(ctx, http.MethodPost, autoScalingServiceName, p.resourcePath(clusterID), &lbpcr)
if err != nil {
return nil, err
}
resp, err := p.client.Do(ctx, req)
if err != nil {
return nil, err
}
data := &TaskResponses{}
if err := json.NewDecoder(resp.Body).Decode(data); err != nil {
return nil, err
}
return data, nil
}
// UpdateLoadBalancers - Update load balancers policy for the given cluster
func (p *policy) UpdateLoadBalancers(ctx context.Context, clusterID, PolicyID string, lbpur *LoadBalancersPolicyUpdateRequest) (*TaskResponses, error) {
req, err := p.client.NewRequest(ctx, http.MethodPut, autoScalingServiceName, p.itemPath(clusterID, PolicyID), &lbpur)
if err != nil {
return nil, err
}
resp, err := p.client.Do(ctx, req)
if err != nil {
return nil, err
}
data := &TaskResponses{}
if err := json.NewDecoder(resp.Body).Decode(data); err != nil {
return nil, err
}
return data, nil
}
// UpdateAutoScaling - Update autoscaling policy for the given cluster
func (p *policy) UpdateAutoScaling(ctx context.Context, clusterID, PolicyID string, pur *PolicyAutoScalingUpdateRequest) (*TaskResponses, error) {
req, err := p.client.NewRequest(ctx, http.MethodPut, autoScalingServiceName, p.itemPath(clusterID, PolicyID), &pur)
if err != nil {
return nil, err
}
resp, err := p.client.Do(ctx, req)
if err != nil {
return nil, err
}
data := &TaskResponses{}
if err := json.NewDecoder(resp.Body).Decode(data); err != nil {
return nil, err
}
return data, nil
}
// Get - Get a policy of the given cluster
func (p *policy) Get(ctx context.Context, clusterID, PolicyID string) (*ScalePolicy, error) {
req, err := p.client.NewRequest(ctx, http.MethodGet, autoScalingServiceName, p.itemPath(clusterID, PolicyID), nil)
if err != nil {
return nil, err
}
resp, err := p.client.Do(ctx, req)
if err != nil {
return nil, err
}
data := &ScalePolicy{}
if err := json.NewDecoder(resp.Body).Decode(data); err != nil {
return nil, err
}
return data, nil
}
// UpdateDeletion - Update deletion policy of the given cluster
func (p *policy) UpdateDeletion(ctx context.Context, clusterID, PolicyID string, pur *PolicyDeletionUpdateRequest) (*TaskResponses, error) {
pur.Type = policyTypeDeletion
req, err := p.client.NewRequest(ctx, http.MethodPut, autoScalingServiceName, p.itemPath(clusterID, PolicyID), &pur)
if err != nil {
return nil, err
}
resp, err := p.client.Do(ctx, req)
if err != nil {
return nil, err
}
data := &TaskResponses{}
if err := json.NewDecoder(resp.Body).Decode(data); err != nil {
return nil, err
}
return data, nil
}