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snapshots.go
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snapshots.go
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//
// Copyright 2020 Joyent, Inc. All rights reserved.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
//
package compute
import (
"context"
"encoding/json"
"net/http"
"path"
"time"
"github.com/joyent/triton-go/v2/client"
"github.com/pkg/errors"
)
type SnapshotsClient struct {
client *client.Client
}
type Snapshot struct {
Name string
State string
Created time.Time
Updated time.Time
}
type ListSnapshotsInput struct {
MachineID string
}
func (c *SnapshotsClient) List(ctx context.Context, input *ListSnapshotsInput) ([]*Snapshot, error) {
fullPath := path.Join("/", c.client.AccountName, "machines", input.MachineID, "snapshots")
reqInputs := client.RequestInput{
Method: http.MethodGet,
Path: fullPath,
}
respReader, err := c.client.ExecuteRequest(ctx, reqInputs)
if respReader != nil {
defer respReader.Close()
}
if err != nil {
return nil, errors.Wrap(err, "unable to list snapshots")
}
var result []*Snapshot
decoder := json.NewDecoder(respReader)
if err = decoder.Decode(&result); err != nil {
return nil, errors.Wrap(err, "unable to decode list snapshots response")
}
return result, nil
}
type GetSnapshotInput struct {
MachineID string
Name string
}
func (c *SnapshotsClient) Get(ctx context.Context, input *GetSnapshotInput) (*Snapshot, error) {
fullPath := path.Join("/", c.client.AccountName, "machines", input.MachineID, "snapshots", input.Name)
reqInputs := client.RequestInput{
Method: http.MethodGet,
Path: fullPath,
}
respReader, err := c.client.ExecuteRequest(ctx, reqInputs)
if respReader != nil {
defer respReader.Close()
}
if err != nil {
return nil, errors.Wrap(err, "unable to get snapshot")
}
var result *Snapshot
decoder := json.NewDecoder(respReader)
if err = decoder.Decode(&result); err != nil {
return nil, errors.Wrap(err, "unable to decode get snapshot response")
}
return result, nil
}
type DeleteSnapshotInput struct {
MachineID string
Name string
}
func (c *SnapshotsClient) Delete(ctx context.Context, input *DeleteSnapshotInput) error {
fullPath := path.Join("/", c.client.AccountName, "machines", input.MachineID, "snapshots", input.Name)
reqInputs := client.RequestInput{
Method: http.MethodDelete,
Path: fullPath,
}
respReader, err := c.client.ExecuteRequest(ctx, reqInputs)
if respReader != nil {
defer respReader.Close()
}
if err != nil {
return errors.Wrap(err, "unable to delete snapshot")
}
return nil
}
type StartMachineFromSnapshotInput struct {
MachineID string
Name string
}
func (c *SnapshotsClient) StartMachine(ctx context.Context, input *StartMachineFromSnapshotInput) error {
fullPath := path.Join("/", c.client.AccountName, "machines", input.MachineID, "snapshots", input.Name)
reqInputs := client.RequestInput{
Method: http.MethodPost,
Path: fullPath,
}
respReader, err := c.client.ExecuteRequest(ctx, reqInputs)
if respReader != nil {
defer respReader.Close()
}
if err != nil {
return errors.Wrap(err, "unable to start machine")
}
return nil
}
type CreateSnapshotInput struct {
MachineID string
Name string
}
func (c *SnapshotsClient) Create(ctx context.Context, input *CreateSnapshotInput) (*Snapshot, error) {
fullPath := path.Join("/", c.client.AccountName, "machines", input.MachineID, "snapshots")
data := make(map[string]interface{})
data["name"] = input.Name
reqInputs := client.RequestInput{
Method: http.MethodPost,
Path: fullPath,
Body: data,
}
respReader, err := c.client.ExecuteRequest(ctx, reqInputs)
if respReader != nil {
defer respReader.Close()
}
if err != nil {
return nil, errors.Wrap(err, "unable to create snapshot")
}
var result *Snapshot
decoder := json.NewDecoder(respReader)
if err = decoder.Decode(&result); err != nil {
return nil, errors.Wrap(err, "unable to decode create snapshot response")
}
return result, nil
}