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Introduce droplet autoscale godo methods (#743)
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* Introduce droplet autoscale godo methods

* Adjust variable names

* Adjust public api model
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asaha2 authored Oct 22, 2024
1 parent 566fac0 commit 5b0efa1
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258 changes: 258 additions & 0 deletions droplet_autoscale.go
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package godo

import (
"context"
"fmt"
"net/http"
"time"
)

const (
dropletAutoscaleBasePath = "/v2/droplets/autoscale"
)

// DropletAutoscaleService defines an interface for managing droplet autoscale pools through DigitalOcean API
type DropletAutoscaleService interface {
Create(context.Context, *DropletAutoscalePoolRequest) (*DropletAutoscalePool, *Response, error)
Get(context.Context, string) (*DropletAutoscalePool, *Response, error)
List(context.Context, *ListOptions) ([]*DropletAutoscalePool, *Response, error)
ListMembers(context.Context, string, *ListOptions) ([]*DropletAutoscaleResource, *Response, error)
ListHistory(context.Context, string, *ListOptions) ([]*DropletAutoscaleHistoryEvent, *Response, error)
Update(context.Context, string, *DropletAutoscalePoolRequest) (*DropletAutoscalePool, *Response, error)
Delete(context.Context, string) (*Response, error)
DeleteDangerous(context.Context, string) (*Response, error)
}

// DropletAutoscalePool represents a DigitalOcean droplet autoscale pool
type DropletAutoscalePool struct {
ID string `json:"id"`
Name string `json:"name"`
Config *DropletAutoscaleConfiguration `json:"config"`
DropletTemplate *DropletAutoscaleResourceTemplate `json:"droplet_template"`
CreatedAt time.Time `json:"created_at"`
UpdatedAt time.Time `json:"updated_at"`
CurrentUtilization *DropletAutoscaleResourceUtilization `json:"current_utilization,omitempty"`
Status string `json:"status"`
}

// DropletAutoscaleConfiguration represents a DigitalOcean droplet autoscale pool configuration
type DropletAutoscaleConfiguration struct {
MinInstances uint64 `json:"min_instances,omitempty"`
MaxInstances uint64 `json:"max_instances,omitempty"`
TargetCPUUtilization float64 `json:"target_cpu_utilization,omitempty"`
TargetMemoryUtilization float64 `json:"target_memory_utilization,omitempty"`
CooldownMinutes uint32 `json:"cooldown_minutes,omitempty"`
TargetNumberInstances uint64 `json:"target_number_instances,omitempty"`
}

// DropletAutoscaleResourceTemplate represents a DigitalOcean droplet autoscale pool resource template
type DropletAutoscaleResourceTemplate struct {
Size string `json:"size"`
Region string `json:"region"`
Image string `json:"image"`
Tags []string `json:"tags"`
SSHKeys []string `json:"ssh_keys"`
VpcUUID string `json:"vpc_uuid"`
WithDropletAgent bool `json:"with_droplet_agent"`
ProjectID string `json:"project_id"`
IPV6 bool `json:"ipv6"`
UserData string `json:"user_data"`
}

// DropletAutoscaleResourceUtilization represents a DigitalOcean droplet autoscale pool resource utilization
type DropletAutoscaleResourceUtilization struct {
Memory float64 `json:"memory,omitempty"`
CPU float64 `json:"cpu,omitempty"`
}

// DropletAutoscaleResource represents a DigitalOcean droplet autoscale pool resource
type DropletAutoscaleResource struct {
DropletID uint64 `json:"droplet_id"`
CreatedAt time.Time `json:"created_at"`
UpdatedAt time.Time `json:"updated_at"`
HealthStatus string `json:"health_status"`
UnhealthyReason string `json:"unhealthy_reason,omitempty"`
Status string `json:"status"`
CurrentUtilization *DropletAutoscaleResourceUtilization `json:"current_utilization,omitempty"`
}

// DropletAutoscaleHistoryEvent represents a DigitalOcean droplet autoscale pool history event
type DropletAutoscaleHistoryEvent struct {
HistoryEventID string `json:"history_event_id"`
CurrentInstanceCount uint64 `json:"current_instance_count"`
DesiredInstanceCount uint64 `json:"desired_instance_count"`
Reason string `json:"reason"`
Status string `json:"status"`
ErrorReason string `json:"error_reason,omitempty"`
CreatedAt time.Time `json:"created_at"`
UpdatedAt time.Time `json:"updated_at"`
}

// DropletAutoscalePoolRequest represents a DigitalOcean droplet autoscale pool create/update request
type DropletAutoscalePoolRequest struct {
Name string `json:"name"`
Config *DropletAutoscaleConfiguration `json:"config"`
DropletTemplate *DropletAutoscaleResourceTemplate `json:"droplet_template"`
}

type dropletAutoscalePoolRoot struct {
AutoscalePool *DropletAutoscalePool `json:"autoscale_pool"`
}

type dropletAutoscalePoolsRoot struct {
AutoscalePools []*DropletAutoscalePool `json:"autoscale_pools"`
Links *Links `json:"links"`
Meta *Meta `json:"meta"`
}

type dropletAutoscaleMembersRoot struct {
Droplets []*DropletAutoscaleResource `json:"droplets"`
Links *Links `json:"links"`
Meta *Meta `json:"meta"`
}

type dropletAutoscaleHistoryEventsRoot struct {
History []*DropletAutoscaleHistoryEvent `json:"history"`
Links *Links `json:"links"`
Meta *Meta `json:"meta"`
}

// DropletAutoscaleServiceOp handles communication with droplet autoscale-related methods of the DigitalOcean API
type DropletAutoscaleServiceOp struct {
client *Client
}

var _ DropletAutoscaleService = &DropletAutoscaleServiceOp{}

// Create a new droplet autoscale pool
func (d *DropletAutoscaleServiceOp) Create(ctx context.Context, createReq *DropletAutoscalePoolRequest) (*DropletAutoscalePool, *Response, error) {
req, err := d.client.NewRequest(ctx, http.MethodPost, dropletAutoscaleBasePath, createReq)
if err != nil {
return nil, nil, err
}
root := new(dropletAutoscalePoolRoot)
resp, err := d.client.Do(ctx, req, root)
if err != nil {
return nil, nil, err
}
return root.AutoscalePool, resp, nil
}

// Get an existing droplet autoscale pool
func (d *DropletAutoscaleServiceOp) Get(ctx context.Context, id string) (*DropletAutoscalePool, *Response, error) {
req, err := d.client.NewRequest(ctx, http.MethodGet, fmt.Sprintf("%s/%s", dropletAutoscaleBasePath, id), nil)
if err != nil {
return nil, nil, err
}
root := new(dropletAutoscalePoolRoot)
resp, err := d.client.Do(ctx, req, root)
if err != nil {
return nil, nil, err
}
return root.AutoscalePool, resp, err
}

// List all existing droplet autoscale pools
func (d *DropletAutoscaleServiceOp) List(ctx context.Context, opts *ListOptions) ([]*DropletAutoscalePool, *Response, error) {
path, err := addOptions(dropletAutoscaleBasePath, opts)
if err != nil {
return nil, nil, err
}
req, err := d.client.NewRequest(ctx, http.MethodGet, path, nil)
if err != nil {
return nil, nil, err
}
root := new(dropletAutoscalePoolsRoot)
resp, err := d.client.Do(ctx, req, root)
if err != nil {
return nil, nil, err
}
if root.Links != nil {
resp.Links = root.Links
}
if root.Meta != nil {
resp.Meta = root.Meta
}
return root.AutoscalePools, resp, err
}

// ListMembers all members for an existing droplet autoscale pool
func (d *DropletAutoscaleServiceOp) ListMembers(ctx context.Context, id string, opts *ListOptions) ([]*DropletAutoscaleResource, *Response, error) {
path, err := addOptions(fmt.Sprintf("%s/%s/members", dropletAutoscaleBasePath, id), opts)
if err != nil {
return nil, nil, err
}
req, err := d.client.NewRequest(ctx, http.MethodGet, path, nil)
if err != nil {
return nil, nil, err
}
root := new(dropletAutoscaleMembersRoot)
resp, err := d.client.Do(ctx, req, root)
if err != nil {
return nil, nil, err
}
if root.Links != nil {
resp.Links = root.Links
}
if root.Meta != nil {
resp.Meta = root.Meta
}
return root.Droplets, resp, err
}

// ListHistory all history events for an existing droplet autoscale pool
func (d *DropletAutoscaleServiceOp) ListHistory(ctx context.Context, id string, opts *ListOptions) ([]*DropletAutoscaleHistoryEvent, *Response, error) {
path, err := addOptions(fmt.Sprintf("%s/%s/history", dropletAutoscaleBasePath, id), opts)
if err != nil {
return nil, nil, err
}
req, err := d.client.NewRequest(ctx, http.MethodGet, path, nil)
if err != nil {
return nil, nil, err
}
root := new(dropletAutoscaleHistoryEventsRoot)
resp, err := d.client.Do(ctx, req, root)
if err != nil {
return nil, nil, err
}
if root.Links != nil {
resp.Links = root.Links
}
if root.Meta != nil {
resp.Meta = root.Meta
}
return root.History, resp, err
}

// Update an existing autoscale pool
func (d *DropletAutoscaleServiceOp) Update(ctx context.Context, id string, updateReq *DropletAutoscalePoolRequest) (*DropletAutoscalePool, *Response, error) {
req, err := d.client.NewRequest(ctx, http.MethodPut, fmt.Sprintf("%s/%s", dropletAutoscaleBasePath, id), updateReq)
if err != nil {
return nil, nil, err
}
root := new(dropletAutoscalePoolRoot)
resp, err := d.client.Do(ctx, req, root)
if err != nil {
return nil, nil, err
}
return root.AutoscalePool, resp, nil
}

// Delete an existing autoscale pool
func (d *DropletAutoscaleServiceOp) Delete(ctx context.Context, id string) (*Response, error) {
req, err := d.client.NewRequest(ctx, http.MethodDelete, fmt.Sprintf("%s/%s", dropletAutoscaleBasePath, id), nil)
if err != nil {
return nil, err
}
return d.client.Do(ctx, req, nil)
}

// DeleteDangerous deletes an existing autoscale pool with all underlying resources
func (d *DropletAutoscaleServiceOp) DeleteDangerous(ctx context.Context, id string) (*Response, error) {
req, err := d.client.NewRequest(ctx, http.MethodDelete, fmt.Sprintf("%s/%s", dropletAutoscaleBasePath, id), nil)
req.Header.Set("X-Dangerous", "true")
if err != nil {
return nil, err
}
return d.client.Do(ctx, req, nil)
}
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