2018-09-23 11:01:40 +00:00
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package linodego
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import (
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"context"
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"encoding/json"
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"fmt"
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"net"
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"time"
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)
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/*
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* https://developers.linode.com/v4/reference/endpoints/linode/instances
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*/
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// InstanceStatus constants start with Instance and include Linode API Instance Status values
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type InstanceStatus string
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// InstanceStatus constants reflect the current status of an Instance
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const (
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InstanceBooting InstanceStatus = "booting"
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InstanceRunning InstanceStatus = "running"
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InstanceOffline InstanceStatus = "offline"
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InstanceShuttingDown InstanceStatus = "shutting_down"
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InstanceRebooting InstanceStatus = "rebooting"
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InstanceProvisioning InstanceStatus = "provisioning"
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InstanceDeleting InstanceStatus = "deleting"
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InstanceMigrating InstanceStatus = "migrating"
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InstanceRebuilding InstanceStatus = "rebuilding"
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InstanceCloning InstanceStatus = "cloning"
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InstanceRestoring InstanceStatus = "restoring"
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InstanceResizing InstanceStatus = "resizing"
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)
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// Instance represents a linode object
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type Instance struct {
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CreatedStr string `json:"created"`
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UpdatedStr string `json:"updated"`
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2019-06-24 18:08:55 +00:00
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ID int `json:"id"`
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Created *time.Time `json:"-"`
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Updated *time.Time `json:"-"`
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Region string `json:"region"`
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Alerts *InstanceAlert `json:"alerts"`
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Backups *InstanceBackup `json:"backups"`
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Image string `json:"image"`
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Group string `json:"group"`
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IPv4 []*net.IP `json:"ipv4"`
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IPv6 string `json:"ipv6"`
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Label string `json:"label"`
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Type string `json:"type"`
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Status InstanceStatus `json:"status"`
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Hypervisor string `json:"hypervisor"`
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Specs *InstanceSpec `json:"specs"`
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WatchdogEnabled bool `json:"watchdog_enabled"`
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Tags []string `json:"tags"`
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2018-09-23 11:01:40 +00:00
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}
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// InstanceSpec represents a linode spec
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type InstanceSpec struct {
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Disk int `json:"disk"`
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Memory int `json:"memory"`
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VCPUs int `json:"vcpus"`
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Transfer int `json:"transfer"`
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}
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// InstanceAlert represents a metric alert
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type InstanceAlert struct {
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CPU int `json:"cpu"`
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IO int `json:"io"`
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NetworkIn int `json:"network_in"`
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NetworkOut int `json:"network_out"`
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TransferQuota int `json:"transfer_quota"`
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}
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// InstanceBackup represents backup settings for an instance
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type InstanceBackup struct {
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Enabled bool `json:"enabled"`
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Schedule struct {
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Day string `json:"day,omitempty"`
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Window string `json:"window,omitempty"`
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}
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}
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// InstanceCreateOptions require only Region and Type
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type InstanceCreateOptions struct {
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Region string `json:"region"`
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Type string `json:"type"`
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Label string `json:"label,omitempty"`
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Group string `json:"group,omitempty"`
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RootPass string `json:"root_pass,omitempty"`
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AuthorizedKeys []string `json:"authorized_keys,omitempty"`
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AuthorizedUsers []string `json:"authorized_users,omitempty"`
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StackScriptID int `json:"stackscript_id,omitempty"`
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StackScriptData map[string]string `json:"stackscript_data,omitempty"`
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BackupID int `json:"backup_id,omitempty"`
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Image string `json:"image,omitempty"`
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BackupsEnabled bool `json:"backups_enabled,omitempty"`
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PrivateIP bool `json:"private_ip,omitempty"`
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2019-06-24 18:08:55 +00:00
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Tags []string `json:"tags,omitempty"`
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2018-09-23 11:01:40 +00:00
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// Creation fields that need to be set explicitly false, "", or 0 use pointers
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SwapSize *int `json:"swap_size,omitempty"`
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Booted *bool `json:"booted,omitempty"`
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}
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// InstanceUpdateOptions is an options struct used when Updating an Instance
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type InstanceUpdateOptions struct {
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Label string `json:"label,omitempty"`
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Group string `json:"group,omitempty"`
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Backups *InstanceBackup `json:"backups,omitempty"`
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Alerts *InstanceAlert `json:"alerts,omitempty"`
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WatchdogEnabled *bool `json:"watchdog_enabled,omitempty"`
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2019-06-24 18:08:55 +00:00
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Tags *[]string `json:"tags,omitempty"`
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}
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// GetUpdateOptions converts an Instance to InstanceUpdateOptions for use in UpdateInstance
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func (l *Instance) GetUpdateOptions() InstanceUpdateOptions {
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return InstanceUpdateOptions{
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Label: l.Label,
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Group: l.Group,
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Backups: l.Backups,
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Alerts: l.Alerts,
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WatchdogEnabled: &l.WatchdogEnabled,
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Tags: &l.Tags,
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}
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2018-09-23 11:01:40 +00:00
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}
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// InstanceCloneOptions is an options struct sent when Cloning an Instance
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type InstanceCloneOptions struct {
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Region string `json:"region,omitempty"`
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Type string `json:"type,omitempty"`
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// LinodeID is an optional existing instance to use as the target of the clone
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LinodeID int `json:"linode_id,omitempty"`
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Label string `json:"label,omitempty"`
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Group string `json:"group,omitempty"`
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BackupsEnabled bool `json:"backups_enabled"`
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Disks []int `json:"disks,omitempty"`
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Configs []int `json:"configs,omitempty"`
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}
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func (l *Instance) fixDates() *Instance {
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l.Created, _ = parseDates(l.CreatedStr)
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l.Updated, _ = parseDates(l.UpdatedStr)
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return l
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}
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// InstancesPagedResponse represents a linode API response for listing
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type InstancesPagedResponse struct {
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*PageOptions
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Data []Instance `json:"data"`
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}
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// endpoint gets the endpoint URL for Instance
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func (InstancesPagedResponse) endpoint(c *Client) string {
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endpoint, err := c.Instances.Endpoint()
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if err != nil {
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panic(err)
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}
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return endpoint
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}
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// appendData appends Instances when processing paginated Instance responses
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func (resp *InstancesPagedResponse) appendData(r *InstancesPagedResponse) {
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resp.Data = append(resp.Data, r.Data...)
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}
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// ListInstances lists linode instances
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func (c *Client) ListInstances(ctx context.Context, opts *ListOptions) ([]Instance, error) {
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response := InstancesPagedResponse{}
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err := c.listHelper(ctx, &response, opts)
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for i := range response.Data {
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response.Data[i].fixDates()
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}
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if err != nil {
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return nil, err
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}
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return response.Data, nil
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}
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// GetInstance gets the instance with the provided ID
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func (c *Client) GetInstance(ctx context.Context, linodeID int) (*Instance, error) {
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e, err := c.Instances.Endpoint()
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if err != nil {
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return nil, err
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}
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e = fmt.Sprintf("%s/%d", e, linodeID)
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r, err := coupleAPIErrors(c.R(ctx).
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SetResult(Instance{}).
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Get(e))
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if err != nil {
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return nil, err
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}
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return r.Result().(*Instance).fixDates(), nil
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}
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// CreateInstance creates a Linode instance
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func (c *Client) CreateInstance(ctx context.Context, instance InstanceCreateOptions) (*Instance, error) {
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var body string
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e, err := c.Instances.Endpoint()
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if err != nil {
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return nil, err
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}
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req := c.R(ctx).SetResult(&Instance{})
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if bodyData, err := json.Marshal(instance); err == nil {
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body = string(bodyData)
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} else {
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return nil, NewError(err)
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}
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r, err := coupleAPIErrors(req.
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SetBody(body).
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Post(e))
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if err != nil {
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return nil, err
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}
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return r.Result().(*Instance).fixDates(), nil
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}
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// UpdateInstance creates a Linode instance
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func (c *Client) UpdateInstance(ctx context.Context, id int, instance InstanceUpdateOptions) (*Instance, error) {
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var body string
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e, err := c.Instances.Endpoint()
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if err != nil {
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return nil, err
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}
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e = fmt.Sprintf("%s/%d", e, id)
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req := c.R(ctx).SetResult(&Instance{})
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if bodyData, err := json.Marshal(instance); err == nil {
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body = string(bodyData)
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} else {
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return nil, NewError(err)
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}
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r, err := coupleAPIErrors(req.
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SetBody(body).
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Put(e))
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if err != nil {
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return nil, err
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}
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return r.Result().(*Instance).fixDates(), nil
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}
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// RenameInstance renames an Instance
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func (c *Client) RenameInstance(ctx context.Context, linodeID int, label string) (*Instance, error) {
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return c.UpdateInstance(ctx, linodeID, InstanceUpdateOptions{Label: label})
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}
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// DeleteInstance deletes a Linode instance
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func (c *Client) DeleteInstance(ctx context.Context, id int) error {
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e, err := c.Instances.Endpoint()
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if err != nil {
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return err
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}
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e = fmt.Sprintf("%s/%d", e, id)
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_, err = coupleAPIErrors(c.R(ctx).Delete(e))
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return err
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}
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// BootInstance will boot a Linode instance
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// A configID of 0 will cause Linode to choose the last/best config
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func (c *Client) BootInstance(ctx context.Context, id int, configID int) error {
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bodyStr := ""
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if configID != 0 {
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bodyMap := map[string]int{"config_id": configID}
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bodyJSON, err := json.Marshal(bodyMap)
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if err != nil {
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return NewError(err)
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}
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bodyStr = string(bodyJSON)
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}
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e, err := c.Instances.Endpoint()
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if err != nil {
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return err
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}
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e = fmt.Sprintf("%s/%d/boot", e, id)
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_, err = coupleAPIErrors(c.R(ctx).
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SetBody(bodyStr).
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Post(e))
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return err
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}
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// CloneInstance clone an existing Instances Disks and Configuration profiles to another Linode Instance
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func (c *Client) CloneInstance(ctx context.Context, id int, options InstanceCloneOptions) (*Instance, error) {
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var body string
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e, err := c.Instances.Endpoint()
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if err != nil {
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return nil, err
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}
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e = fmt.Sprintf("%s/%d/clone", e, id)
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req := c.R(ctx).SetResult(&Instance{})
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if bodyData, err := json.Marshal(options); err == nil {
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body = string(bodyData)
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} else {
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return nil, NewError(err)
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}
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r, err := coupleAPIErrors(req.
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SetBody(body).
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Post(e))
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if err != nil {
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return nil, err
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}
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return r.Result().(*Instance).fixDates(), nil
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}
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// RebootInstance reboots a Linode instance
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// A configID of 0 will cause Linode to choose the last/best config
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func (c *Client) RebootInstance(ctx context.Context, id int, configID int) error {
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bodyStr := "{}"
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if configID != 0 {
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bodyMap := map[string]int{"config_id": configID}
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bodyJSON, err := json.Marshal(bodyMap)
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if err != nil {
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return NewError(err)
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}
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bodyStr = string(bodyJSON)
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}
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e, err := c.Instances.Endpoint()
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if err != nil {
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return err
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}
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e = fmt.Sprintf("%s/%d/reboot", e, id)
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_, err = coupleAPIErrors(c.R(ctx).
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SetBody(bodyStr).
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Post(e))
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return err
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}
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// RebuildInstanceOptions is a struct representing the options to send to the rebuild linode endpoint
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type RebuildInstanceOptions struct {
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Image string `json:"image"`
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RootPass string `json:"root_pass"`
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AuthorizedKeys []string `json:"authorized_keys"`
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AuthorizedUsers []string `json:"authorized_users"`
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StackscriptID int `json:"stackscript_id"`
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StackscriptData map[string]string `json:"stackscript_data"`
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Booted bool `json:"booted"`
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}
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// RebuildInstance Deletes all Disks and Configs on this Linode,
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// then deploys a new Image to this Linode with the given attributes.
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func (c *Client) RebuildInstance(ctx context.Context, id int, opts RebuildInstanceOptions) (*Instance, error) {
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o, err := json.Marshal(opts)
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if err != nil {
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return nil, NewError(err)
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}
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b := string(o)
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e, err := c.Instances.Endpoint()
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if err != nil {
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return nil, err
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}
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e = fmt.Sprintf("%s/%d/rebuild", e, id)
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r, err := coupleAPIErrors(c.R(ctx).
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SetBody(b).
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SetResult(&Instance{}).
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Post(e))
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if err != nil {
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return nil, err
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}
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return r.Result().(*Instance).fixDates(), nil
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}
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// RescueInstanceOptions fields are those accepted by RescueInstance
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type RescueInstanceOptions struct {
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|
Devices InstanceConfigDeviceMap `json:"devices"`
|
|
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|
}
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|
|
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|
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|
// RescueInstance reboots an instance into a safe environment for performing many system recovery and disk management tasks.
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|
|
|
// Rescue Mode is based on the Finnix recovery distribution, a self-contained and bootable Linux distribution.
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|
|
|
// You can also use Rescue Mode for tasks other than disaster recovery, such as formatting disks to use different filesystems,
|
|
|
|
// copying data between disks, and downloading files from a disk via SSH and SFTP.
|
|
|
|
func (c *Client) RescueInstance(ctx context.Context, id int, opts RescueInstanceOptions) error {
|
|
|
|
o, err := json.Marshal(opts)
|
|
|
|
if err != nil {
|
|
|
|
return NewError(err)
|
|
|
|
}
|
|
|
|
b := string(o)
|
|
|
|
e, err := c.Instances.Endpoint()
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
e = fmt.Sprintf("%s/%d/rescue", e, id)
|
|
|
|
|
|
|
|
_, err = coupleAPIErrors(c.R(ctx).
|
|
|
|
SetBody(b).
|
|
|
|
Post(e))
|
|
|
|
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
|
|
|
|
// ResizeInstance resizes an instance to new Linode type
|
|
|
|
func (c *Client) ResizeInstance(ctx context.Context, id int, linodeType string) error {
|
|
|
|
body := fmt.Sprintf("{\"type\":\"%s\"}", linodeType)
|
|
|
|
|
|
|
|
e, err := c.Instances.Endpoint()
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
e = fmt.Sprintf("%s/%d/resize", e, id)
|
|
|
|
|
|
|
|
_, err = coupleAPIErrors(c.R(ctx).
|
|
|
|
SetBody(body).
|
|
|
|
Post(e))
|
|
|
|
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
|
|
|
|
// ShutdownInstance - Shutdown an instance
|
|
|
|
func (c *Client) ShutdownInstance(ctx context.Context, id int) error {
|
|
|
|
return c.simpleInstanceAction(ctx, "shutdown", id)
|
|
|
|
}
|
|
|
|
|
|
|
|
// MutateInstance Upgrades a Linode to its next generation.
|
|
|
|
func (c *Client) MutateInstance(ctx context.Context, id int) error {
|
|
|
|
return c.simpleInstanceAction(ctx, "mutate", id)
|
|
|
|
}
|
|
|
|
|
|
|
|
// MigrateInstance - Migrate an instance
|
|
|
|
func (c *Client) MigrateInstance(ctx context.Context, id int) error {
|
|
|
|
return c.simpleInstanceAction(ctx, "migrate", id)
|
|
|
|
}
|
|
|
|
|
|
|
|
// simpleInstanceAction is a helper for Instance actions that take no parameters
|
|
|
|
// and return empty responses `{}` unless they return a standard error
|
|
|
|
func (c *Client) simpleInstanceAction(ctx context.Context, action string, id int) error {
|
|
|
|
e, err := c.Instances.Endpoint()
|
|
|
|
if err != nil {
|
|
|
|
return err
|
|
|
|
}
|
|
|
|
e = fmt.Sprintf("%s/%d/%s", e, id, action)
|
|
|
|
_, err = coupleAPIErrors(c.R(ctx).Post(e))
|
|
|
|
return err
|
|
|
|
}
|