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service.go
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service.go
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package service
import (
"encoding/xml"
"fmt"
"time"
"github.com/UpCloudLtd/upcloud-go-api/upcloud"
"github.com/UpCloudLtd/upcloud-go-api/upcloud/client"
"github.com/UpCloudLtd/upcloud-go-api/upcloud/request"
)
// Service represents the API service. The specified client is used to communicate with the API
type Service struct {
client *client.Client
}
// New constructs and returns a new service object configured with the specified client
func New(client *client.Client) *Service {
service := Service{}
service.client = client
return &service
}
// GetAccount returns the current user's account
func (s *Service) GetAccount() (*upcloud.Account, error) {
account := upcloud.Account{}
response, err := s.basicGetRequest("/account")
if err != nil {
return nil, parseServiceError(err)
}
xml.Unmarshal(response, &account)
return &account, nil
}
// GetZones returns the available zones
func (s *Service) GetZones() (*upcloud.Zones, error) {
zones := upcloud.Zones{}
response, err := s.basicGetRequest("/zone")
if err != nil {
return nil, parseServiceError(err)
}
xml.Unmarshal(response, &zones)
return &zones, nil
}
// GetPriceZones returns the available price zones and their corresponding prices
func (s *Service) GetPriceZones() (*upcloud.PrizeZones, error) {
zones := upcloud.PrizeZones{}
response, err := s.basicGetRequest("/price")
if err != nil {
return nil, parseServiceError(err)
}
xml.Unmarshal(response, &zones)
return &zones, nil
}
// GetTimeZones returns the available timezones
func (s *Service) GetTimeZones() (*upcloud.TimeZones, error) {
zones := upcloud.TimeZones{}
response, err := s.basicGetRequest("/timezone")
if err != nil {
return nil, parseServiceError(err)
}
xml.Unmarshal(response, &zones)
return &zones, nil
}
// GetPlans returns the available service plans
func (s *Service) GetPlans() (*upcloud.Plans, error) {
plans := upcloud.Plans{}
response, err := s.basicGetRequest("/plan")
if err != nil {
return nil, parseServiceError(err)
}
xml.Unmarshal(response, &plans)
return &plans, nil
}
// GetServerConfigurations returns the available pre-configured server configurations
func (s *Service) GetServerConfigurations() (*upcloud.ServerConfigurations, error) {
serverConfigurations := upcloud.ServerConfigurations{}
response, err := s.basicGetRequest("/server_size")
if err != nil {
return nil, parseServiceError(err)
}
xml.Unmarshal(response, &serverConfigurations)
return &serverConfigurations, nil
}
// GetServers returns the available servers
func (s *Service) GetServers() (*upcloud.Servers, error) {
servers := upcloud.Servers{}
response, err := s.basicGetRequest("/server")
if err != nil {
return nil, parseServiceError(err)
}
xml.Unmarshal(response, &servers)
return &servers, nil
}
// GetServerDetails returns extended details about the specified server
func (s *Service) GetServerDetails(r *request.GetServerDetailsRequest) (*upcloud.ServerDetails, error) {
serverDetails := upcloud.ServerDetails{}
response, err := s.basicGetRequest(r.RequestURL())
if err != nil {
return nil, parseServiceError(err)
}
xml.Unmarshal(response, &serverDetails)
return &serverDetails, nil
}
// CreateServer creates a server and returns the server details for the newly created server
func (s *Service) CreateServer(r *request.CreateServerRequest) (*upcloud.ServerDetails, error) {
serverDetails := upcloud.ServerDetails{}
requestBody, _ := xml.Marshal(r)
response, err := s.client.PerformPostRequest(s.client.CreateRequestUrl(r.RequestURL()), requestBody)
if err != nil {
return nil, parseServiceError(err)
}
xml.Unmarshal(response, &serverDetails)
return &serverDetails, nil
}
// WaitForServerState blocks execution until the specified server has entered the specified state. If the state changes
// favorably, the new server details are returned. The method will give up after the specified timeout
func (s *Service) WaitForServerState(r *request.WaitForServerStateRequest) (*upcloud.ServerDetails, error) {
attempts := 0
sleepDuration := time.Second * 5
for {
// Always wait for one attempt period before querying the state the first time. Newly created servers
// may not immediately switch to "maintenance" upon creation, triggering a false positive from this
// method
attempts++
time.Sleep(sleepDuration)
serverDetails, err := s.GetServerDetails(&request.GetServerDetailsRequest{
UUID: r.UUID,
})
if err != nil {
return nil, err
}
// Either wait for the server to enter the desired state or wait for it to leave the undesired state
if r.DesiredState != "" && serverDetails.State == r.DesiredState {
return serverDetails, nil
} else if r.UndesiredState != "" && serverDetails.State != r.UndesiredState {
return serverDetails, nil
}
if time.Duration(attempts)*sleepDuration >= r.Timeout {
return nil, fmt.Errorf("Timeout reached while waiting for server to enter state \"%s\"", r.DesiredState)
}
}
}
// StartServer starts the specified server
func (s *Service) StartServer(r *request.StartServerRequest) (*upcloud.ServerDetails, error) {
// Save previous timeout
prevTimeout := s.client.GetTimeout()
// Increase the client timeout to match the request timeout
s.client.SetTimeout(r.Timeout)
serverDetails := upcloud.ServerDetails{}
response, err := s.client.PerformPostRequest(s.client.CreateRequestUrl(r.RequestURL()), nil)
// Restore previous timout
s.client.SetTimeout(prevTimeout)
if err != nil {
return nil, parseServiceError(err)
}
xml.Unmarshal(response, &serverDetails)
return &serverDetails, nil
}
// StopServer stops the specified server
func (s *Service) StopServer(r *request.StopServerRequest) (*upcloud.ServerDetails, error) {
// Increase the client timeout to match the request timeout
s.client.SetTimeout(r.Timeout)
serverDetails := upcloud.ServerDetails{}
requestBody, _ := xml.Marshal(r)
response, err := s.client.PerformPostRequest(s.client.CreateRequestUrl(r.RequestURL()), requestBody)
if err != nil {
return nil, parseServiceError(err)
}
xml.Unmarshal(response, &serverDetails)
return &serverDetails, nil
}
// RestartServer restarts the specified server
func (s *Service) RestartServer(r *request.RestartServerRequest) (*upcloud.ServerDetails, error) {
// Increase the client timeout to match the request timeout
s.client.SetTimeout(r.Timeout)
serverDetails := upcloud.ServerDetails{}
requestBody, _ := xml.Marshal(r)
response, err := s.client.PerformPostRequest(s.client.CreateRequestUrl(r.RequestURL()), requestBody)
if err != nil {
return nil, parseServiceError(err)
}
xml.Unmarshal(response, &serverDetails)
return &serverDetails, nil
}
// ModifyServer modifies the configuration of an existing server. Attaching and detaching storages as well as assigning
// and releasing IP addresses have their own separate operations.
func (s *Service) ModifyServer(r *request.ModifyServerRequest) (*upcloud.ServerDetails, error) {
serverDetails := upcloud.ServerDetails{}
requestBody, _ := xml.Marshal(r)
response, err := s.client.PerformPutRequest(s.client.CreateRequestUrl(r.RequestURL()), requestBody)
if err != nil {
return nil, parseServiceError(err)
}
xml.Unmarshal(response, &serverDetails)
return &serverDetails, nil
}
// DeleteServer deletes the specified server
func (s *Service) DeleteServer(r *request.DeleteServerRequest) error {
err := s.client.PerformDeleteRequest(s.client.CreateRequestUrl(r.RequestURL()))
if err != nil {
return parseServiceError(err)
}
return nil
}
// DeleteServerAndStorages deletes the specified server and all attached storages
func (s *Service) DeleteServerAndStorages(r *request.DeleteServerAndStoragesRequest) error {
err := s.client.PerformDeleteRequest(s.client.CreateRequestUrl(r.RequestURL()))
if err != nil {
return parseServiceError(err)
}
return nil
}
// TagServer tags a server with with one or more tags
func (s *Service) TagServer(r *request.TagServerRequest) (*upcloud.ServerDetails, error) {
serverDetails := upcloud.ServerDetails{}
response, err := s.client.PerformPostRequest(s.client.CreateRequestUrl(r.RequestURL()), nil)
if err != nil {
return nil, parseServiceError(err)
}
xml.Unmarshal(response, &serverDetails)
return &serverDetails, nil
}
// UntagServer removes one or more tags from a server
func (s *Service) UntagServer(r *request.UntagServerRequest) (*upcloud.ServerDetails, error) {
serverDetails := upcloud.ServerDetails{}
response, err := s.client.PerformPostRequest(s.client.CreateRequestUrl(r.RequestURL()), nil)
if err != nil {
return nil, parseServiceError(err)
}
xml.Unmarshal(response, &serverDetails)
return &serverDetails, nil
}
// CreateTag creates a new tag, optionally assigning it to one or more servers at the same time
func (s *Service) CreateTag(r *request.CreateTagRequest) (*upcloud.Tag, error) {
tagDetails := upcloud.Tag{}
requestBody, _ := xml.Marshal(r)
response, err := s.client.PerformPostRequest(s.client.CreateRequestUrl(r.RequestURL()), requestBody)
if err != nil {
return nil, parseServiceError(err)
}
xml.Unmarshal(response, &tagDetails)
return &tagDetails, nil
}
// ModifyTag modifies a tag (e.g. renaming it)
func (s *Service) ModifyTag(r *request.ModifyTagRequest) (*upcloud.Tag, error) {
tagDetails := upcloud.Tag{}
requestBody, _ := xml.Marshal(r)
response, err := s.client.PerformPutRequest(s.client.CreateRequestUrl(r.RequestURL()), requestBody)
if err != nil {
return nil, parseServiceError(err)
}
xml.Unmarshal(response, &tagDetails)
return &tagDetails, nil
}
// DeleteTag deletes the specified tag
func (s *Service) DeleteTag(r *request.DeleteTagRequest) error {
err := s.client.PerformDeleteRequest(s.client.CreateRequestUrl(r.RequestURL()))
if err != nil {
return parseServiceError(err)
}
return nil
}
// GetStorages returns all available storages
func (s *Service) GetStorages(r *request.GetStoragesRequest) (*upcloud.Storages, error) {
storages := upcloud.Storages{}
response, err := s.basicGetRequest(r.RequestURL())
if err != nil {
return nil, err
}
xml.Unmarshal(response, &storages)
return &storages, nil
}
// GetStorageDetails returns extended details about the specified piece of storage
func (s *Service) GetStorageDetails(r *request.GetStorageDetailsRequest) (*upcloud.StorageDetails, error) {
storageDetails := upcloud.StorageDetails{}
response, err := s.basicGetRequest(r.RequestURL())
if err != nil {
return nil, err
}
xml.Unmarshal(response, &storageDetails)
return &storageDetails, nil
}
// CreateStorage creates the specified storage
func (s *Service) CreateStorage(r *request.CreateStorageRequest) (*upcloud.StorageDetails, error) {
storageDetails := upcloud.StorageDetails{}
requestBody, _ := xml.Marshal(r)
response, err := s.client.PerformPostRequest(s.client.CreateRequestUrl(r.RequestURL()), requestBody)
if err != nil {
return nil, parseServiceError(err)
}
xml.Unmarshal(response, &storageDetails)
return &storageDetails, nil
}
// ModifyStorage modifies the specified storage device
func (s *Service) ModifyStorage(r *request.ModifyStorageRequest) (*upcloud.StorageDetails, error) {
storageDetails := upcloud.StorageDetails{}
requestBody, _ := xml.Marshal(r)
response, err := s.client.PerformPutRequest(s.client.CreateRequestUrl(r.RequestURL()), requestBody)
if err != nil {
return nil, parseServiceError(err)
}
xml.Unmarshal(response, &storageDetails)
return &storageDetails, nil
}
// AttachStorage attaches the specified storage to the specified server
func (s *Service) AttachStorage(r *request.AttachStorageRequest) (*upcloud.ServerDetails, error) {
serverDetails := upcloud.ServerDetails{}
requestBody, _ := xml.Marshal(r)
response, err := s.client.PerformPostRequest(s.client.CreateRequestUrl(r.RequestURL()), requestBody)
if err != nil {
return nil, parseServiceError(err)
}
xml.Unmarshal(response, &serverDetails)
return &serverDetails, nil
}
// DetachStorage detaches the specified storage from the specified server
func (s *Service) DetachStorage(r *request.DetachStorageRequest) (*upcloud.ServerDetails, error) {
serverDetails := upcloud.ServerDetails{}
requestBody, _ := xml.Marshal(r)
response, err := s.client.PerformPostRequest(s.client.CreateRequestUrl(r.RequestURL()), requestBody)
if err != nil {
return nil, parseServiceError(err)
}
xml.Unmarshal(response, &serverDetails)
return &serverDetails, nil
}
// DeleteStorage deletes the specified storage device
func (s *Service) DeleteStorage(r *request.DeleteStorageRequest) error {
err := s.client.PerformDeleteRequest(s.client.CreateRequestUrl(r.RequestURL()))
if err != nil {
return parseServiceError(err)
}
return nil
}
// CloneStorage detaches the specified storage from the specified server
func (s *Service) CloneStorage(r *request.CloneStorageRequest) (*upcloud.StorageDetails, error) {
storageDetails := upcloud.StorageDetails{}
requestBody, _ := xml.Marshal(r)
response, err := s.client.PerformPostRequest(s.client.CreateRequestUrl(r.RequestURL()), requestBody)
if err != nil {
return nil, parseServiceError(err)
}
xml.Unmarshal(response, &storageDetails)
return &storageDetails, nil
}
// TemplatizeStorage detaches the specified storage from the specified server
func (s *Service) TemplatizeStorage(r *request.TemplatizeStorageRequest) (*upcloud.StorageDetails, error) {
storageDetails := upcloud.StorageDetails{}
requestBody, _ := xml.Marshal(r)
response, err := s.client.PerformPostRequest(s.client.CreateRequestUrl(r.RequestURL()), requestBody)
if err != nil {
return nil, parseServiceError(err)
}
xml.Unmarshal(response, &storageDetails)
return &storageDetails, nil
}
// WaitForStorageState blocks execution until the specified storage device has entered the specified state. If the
// state changes favorably, the new storage details is returned. The method will give up after the specified timeout
func (s *Service) WaitForStorageState(r *request.WaitForStorageStateRequest) (*upcloud.StorageDetails, error) {
attempts := 0
sleepDuration := time.Second * 5
for {
attempts++
storageDetails, err := s.GetStorageDetails(&request.GetStorageDetailsRequest{
UUID: r.UUID,
})
if err != nil {
return nil, err
}
if storageDetails.State == r.DesiredState {
return storageDetails, nil
}
time.Sleep(sleepDuration)
if time.Duration(attempts)*sleepDuration >= r.Timeout {
return nil, fmt.Errorf("Timeout reached while waiting for storage to enter state \"%s\"", r.DesiredState)
}
}
}
// LoadCDROM loads a storage as a CD-ROM in the CD-ROM device of a server
func (s *Service) LoadCDROM(r *request.LoadCDROMRequest) (*upcloud.ServerDetails, error) {
serverDetails := upcloud.ServerDetails{}
requestBody, _ := xml.Marshal(r)
response, err := s.client.PerformPostRequest(s.client.CreateRequestUrl(r.RequestURL()), requestBody)
if err != nil {
return nil, parseServiceError(err)
}
xml.Unmarshal(response, &serverDetails)
return &serverDetails, nil
}
// EjectCDROM ejects the storage from the CD-ROM device of a server
func (s *Service) EjectCDROM(r *request.EjectCDROMRequest) (*upcloud.ServerDetails, error) {
serverDetails := upcloud.ServerDetails{}
requestBody, _ := xml.Marshal(r)
response, err := s.client.PerformPostRequest(s.client.CreateRequestUrl(r.RequestURL()), requestBody)
if err != nil {
return nil, parseServiceError(err)
}
xml.Unmarshal(response, &serverDetails)
return &serverDetails, nil
}
// CreateBackup creates a backup of the specified storage
func (s *Service) CreateBackup(r *request.CreateBackupRequest) (*upcloud.StorageDetails, error) {
storageDetails := upcloud.StorageDetails{}
requestBody, _ := xml.Marshal(r)
response, err := s.client.PerformPostRequest(s.client.CreateRequestUrl(r.RequestURL()), requestBody)
if err != nil {
return nil, parseServiceError(err)
}
xml.Unmarshal(response, &storageDetails)
return &storageDetails, nil
}
// RestoreBackup creates a backup of the specified storage
func (s *Service) RestoreBackup(r *request.RestoreBackupRequest) error {
requestBody, _ := xml.Marshal(r)
_, err := s.client.PerformPostRequest(s.client.CreateRequestUrl(r.RequestURL()), requestBody)
if err != nil {
return parseServiceError(err)
}
return nil
}
// GetIPAddresses returns all IP addresses associated with the account
func (s *Service) GetIPAddresses() (*upcloud.IPAddresses, error) {
ipAddresses := upcloud.IPAddresses{}
response, err := s.basicGetRequest("/ip_address")
if err != nil {
return nil, err
}
xml.Unmarshal(response, &ipAddresses)
return &ipAddresses, nil
}
// GetIPAddressDetails returns extended details about the specified IP address
func (s *Service) GetIPAddressDetails(r *request.GetIPAddressDetailsRequest) (*upcloud.IPAddress, error) {
ipAddress := upcloud.IPAddress{}
response, err := s.basicGetRequest(r.RequestURL())
if err != nil {
return nil, err
}
xml.Unmarshal(response, &ipAddress)
return &ipAddress, nil
}
// AssignIPAddress assigns the specified IP address to the specified server
func (s *Service) AssignIPAddress(r *request.AssignIPAddressRequest) (*upcloud.IPAddress, error) {
ipAddress := upcloud.IPAddress{}
requestBody, _ := xml.Marshal(r)
response, err := s.client.PerformPostRequest(s.client.CreateRequestUrl(r.RequestURL()), requestBody)
if err != nil {
return nil, parseServiceError(err)
}
xml.Unmarshal(response, &ipAddress)
return &ipAddress, nil
}
// ModifyIPAddress modifies the specified IP address
func (s *Service) ModifyIPAddress(r *request.ModifyIPAddressRequest) (*upcloud.IPAddress, error) {
ipAddress := upcloud.IPAddress{}
requestBody, _ := xml.Marshal(r)
response, err := s.client.PerformPutRequest(s.client.CreateRequestUrl(r.RequestURL()), requestBody)
if err != nil {
return nil, parseServiceError(err)
}
xml.Unmarshal(response, &ipAddress)
return &ipAddress, nil
}
// ReleaseIPAddress releases the specified IP address from the server it is attached to
func (s *Service) ReleaseIPAddress(r *request.ReleaseIPAddressRequest) error {
err := s.client.PerformDeleteRequest(s.client.CreateRequestUrl(r.RequestURL()))
if err != nil {
return parseServiceError(err)
}
return nil
}
// GetFirewallRules returns the firewall rules for the specified server
func (s *Service) GetFirewallRules(r *request.GetFirewallRulesRequest) (*upcloud.FirewallRules, error) {
firewallRules := upcloud.FirewallRules{}
response, err := s.basicGetRequest(r.RequestURL())
if err != nil {
return nil, err
}
xml.Unmarshal(response, &firewallRules)
return &firewallRules, nil
}
// GetFirewallRuleDetails returns extended details about the specified firewall rule
func (s *Service) GetFirewallRuleDetails(r *request.GetFirewallRuleDetailsRequest) (*upcloud.FirewallRule, error) {
firewallRule := upcloud.FirewallRule{}
response, err := s.basicGetRequest(r.RequestURL())
if err != nil {
return nil, parseServiceError(err)
}
xml.Unmarshal(response, &firewallRule)
return &firewallRule, nil
}
// CreateFirewallRule creates the firewall rule
func (s *Service) CreateFirewallRule(r *request.CreateFirewallRuleRequest) (*upcloud.FirewallRule, error) {
firewallRule := upcloud.FirewallRule{}
requestBody, _ := xml.Marshal(r)
response, err := s.client.PerformPostRequest(s.client.CreateRequestUrl(r.RequestURL()), requestBody)
if err != nil {
return nil, parseServiceError(err)
}
xml.Unmarshal(response, &firewallRule)
return &firewallRule, nil
}
// DeleteFirewallRule deletes the specified firewall rule
func (s *Service) DeleteFirewallRule(r *request.DeleteFirewallRuleRequest) error {
err := s.client.PerformDeleteRequest(s.client.CreateRequestUrl(r.RequestURL()))
if err != nil {
return parseServiceError(err)
}
return nil
}
// GetTags returns all tags
func (s *Service) GetTags() (*upcloud.Tags, error) {
tags := upcloud.Tags{}
response, err := s.basicGetRequest("/tag")
if err != nil {
return nil, err
}
xml.Unmarshal(response, &tags)
return &tags, nil
}
// Wrapper that performs a GET request to the specified location and returns the response or a service error
func (s *Service) basicGetRequest(location string) ([]byte, error) {
requestUrl := s.client.CreateRequestUrl(location)
response, err := s.client.PerformGetRequest(requestUrl)
if err != nil {
return nil, parseServiceError(err)
}
return response, nil
}
// Parses an error returned from the client into a service error object
func parseServiceError(err error) error {
// Parse service errors
if clientError, ok := err.(*client.Error); ok {
serviceError := upcloud.Error{}
responseBody := clientError.ResponseBody
xml.Unmarshal(responseBody, &serviceError)
return &serviceError
}
return err
}