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instances.go
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instances.go
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//
// Copyright 2020 Joyent, Inc.
//
// 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"
"crypto/sha1"
"encoding/hex"
"encoding/json"
"fmt"
"io"
"net/http"
"net/url"
"path"
"strconv"
"strings"
"time"
"github.com/joyent/triton-go/v2/client"
"github.com/joyent/triton-go/v2/errors"
pkgerrors "github.com/pkg/errors"
)
type InstancesClient struct {
client *client.Client
}
const (
CNSTagDisable = "triton.cns.disable"
CNSTagReversePTR = "triton.cns.reverse_ptr"
CNSTagServices = "triton.cns.services"
)
// InstanceCNS is a container for the CNS-specific attributes. In the API these
// values are embedded within a Instance's Tags attribute, however they are
// exposed to the caller as their native types.
type InstanceCNS struct {
Disable bool
ReversePTR string
Services []string
}
type InstanceVolume struct {
Name string `json:"name,omitempty"`
Type string `json:"type,omitempty"`
Mode string `json:"mode,omitempty"`
Mountpoint string `json:"mountpoint,omitempty"`
}
type NetworkObject struct {
IPv4UUID string `json:"ipv4_uuid"`
IPv4IPs []string `json:"ipv4_ips,omitempty"`
}
type Instance struct {
ID string `json:"id"`
Name string `json:"name"`
Type string `json:"type"`
Brand string `json:"brand"`
State string `json:"state"`
Image string `json:"image"`
Memory int `json:"memory"`
Disk int `json:"disk"`
Metadata map[string]interface{} `json:"metadata"`
Tags map[string]interface{} `json:"tags"`
Created time.Time `json:"created"`
Updated time.Time `json:"updated"`
Docker bool `json:"docker"`
IPs []string `json:"ips"`
Networks []string `json:"networks"`
PrimaryIP string `json:"primaryIp"`
FirewallEnabled bool `json:"firewall_enabled"`
ComputeNode string `json:"compute_node"`
Package string `json:"package"`
DomainNames []string `json:"dns_names"`
DeletionProtection bool `json:"deletion_protection"`
CNS InstanceCNS
}
// _Instance is a private facade over Instance that handles the necessary API
// overrides from VMAPI's machine endpoint(s).
type _Instance struct {
Instance
Tags map[string]interface{} `json:"tags"`
}
type NIC struct {
IP string `json:"ip"`
MAC string `json:"mac"`
Primary bool `json:"primary"`
Netmask string `json:"netmask"`
Gateway string `json:"gateway"`
State string `json:"state"`
Network string `json:"network"`
}
type GetInstanceInput struct {
ID string
}
func (gmi *GetInstanceInput) Validate() error {
if gmi.ID == "" {
return fmt.Errorf("machine ID can not be empty")
}
return nil
}
func (c *InstancesClient) Count(ctx context.Context, input *ListInstancesInput) (int, error) {
fullPath := path.Join("/", c.client.AccountName, "machines")
reqInputs := client.RequestInput{
Method: http.MethodHead,
Path: fullPath,
Query: buildQueryFilter(input),
}
response, err := c.client.ExecuteRequestRaw(ctx, reqInputs)
if err != nil {
return -1, pkgerrors.Wrap(err, "unable to get machines count")
}
if response == nil {
return -1, pkgerrors.New("request to get machines count has empty response")
}
defer response.Body.Close()
var result int
if count := response.Header.Get("X-Resource-Count"); count != "" {
value, err := strconv.Atoi(count)
if err != nil {
return -1, pkgerrors.Wrap(err, "unable to decode machines count response")
}
result = value
}
return result, nil
}
func (c *InstancesClient) Get(ctx context.Context, input *GetInstanceInput) (*Instance, error) {
if err := input.Validate(); err != nil {
return nil, pkgerrors.Wrap(err, "unable to get machine")
}
fullPath := path.Join("/", c.client.AccountName, "machines", input.ID)
reqInputs := client.RequestInput{
Method: http.MethodGet,
Path: fullPath,
PreserveGone: true,
}
response, reqErr := c.client.ExecuteRequestRaw(ctx, reqInputs)
if response == nil {
return nil, pkgerrors.Wrap(reqErr, "unable to get machine")
}
if response.Body != nil {
defer response.Body.Close()
}
if reqErr != nil {
reqErr = pkgerrors.Wrap(reqErr, "unable to get machine")
// If this is not a HTTP 410 Gone error, return it immediately to the caller. Otherwise, we'll return it alongside the instance below.
if response.StatusCode != http.StatusGone {
return nil, reqErr
}
}
var result *_Instance
decoder := json.NewDecoder(response.Body)
if err := decoder.Decode(&result); err != nil {
return nil, pkgerrors.Wrap(err, "unable to parse JSON in get machine response")
}
native, err := result.toNative()
if err != nil {
return nil, pkgerrors.Wrap(err, "unable to decode get machine response")
}
// To remain compatible with the existing interface, we'll return both an error and an instance object in some cases; e.g., for HTTP 410 Gone responses for deleted instances.
return native, reqErr
}
type ListInstancesInput struct {
Brand string
Alias string
Name string
Image string
State string
Memory uint16
Limit uint16
Offset uint16
Tags map[string]interface{} // query by arbitrary tags prefixed with "tag."
Tombstone bool
Docker bool
Credentials bool
}
func buildQueryFilter(input *ListInstancesInput) *url.Values {
query := &url.Values{}
if input.Brand != "" {
query.Set("brand", input.Brand)
}
if input.Name != "" {
query.Set("name", input.Name)
}
if input.Image != "" {
query.Set("image", input.Image)
}
if input.State != "" {
query.Set("state", input.State)
}
if input.Memory >= 1 {
query.Set("memory", fmt.Sprintf("%d", input.Memory))
}
if input.Limit >= 1 && input.Limit <= 1000 {
query.Set("limit", fmt.Sprintf("%d", input.Limit))
}
if input.Offset >= 0 {
query.Set("offset", fmt.Sprintf("%d", input.Offset))
}
if input.Tombstone {
query.Set("tombstone", "true")
}
if input.Docker {
query.Set("docker", "true")
}
if input.Credentials {
query.Set("credentials", "true")
}
if input.Tags != nil {
for k, v := range input.Tags {
query.Set(fmt.Sprintf("tag.%s", k), v.(string))
}
}
return query
}
func (c *InstancesClient) List(ctx context.Context, input *ListInstancesInput) ([]*Instance, error) {
fullPath := path.Join("/", c.client.AccountName, "machines")
reqInputs := client.RequestInput{
Method: http.MethodGet,
Path: fullPath,
Query: buildQueryFilter(input),
}
respReader, err := c.client.ExecuteRequest(ctx, reqInputs)
if respReader != nil {
defer respReader.Close()
}
if err != nil {
return nil, pkgerrors.Wrap(err, "unable to list machines")
}
var results []*_Instance
decoder := json.NewDecoder(respReader)
if err = decoder.Decode(&results); err != nil {
return nil, pkgerrors.Wrap(err, "unable to decode list machines response")
}
machines := make([]*Instance, 0, len(results))
for _, machineAPI := range results {
native, err := machineAPI.toNative()
if err != nil {
return nil, pkgerrors.Wrap(err, "unable to decode list machines response")
}
machines = append(machines, native)
}
return machines, nil
}
type CreateInstanceInput struct {
Name string
NamePrefix string
Package string
Image string
Networks []string
NetworkObjects []NetworkObject
Affinity []string
LocalityStrict bool
LocalityNear []string
LocalityFar []string
Metadata map[string]interface{}
Tags map[string]interface{} //
FirewallEnabled bool //
CNS InstanceCNS
Volumes []InstanceVolume
}
func buildInstanceName(namePrefix string) string {
h := sha1.New()
io.WriteString(h, namePrefix+time.Now().UTC().String())
return fmt.Sprintf("%s%s", namePrefix, hex.EncodeToString(h.Sum(nil))[:8])
}
func (input *CreateInstanceInput) toAPI() (map[string]interface{}, error) {
const numExtraParams = 8
result := make(map[string]interface{}, numExtraParams+len(input.Metadata)+len(input.Tags))
result["firewall_enabled"] = input.FirewallEnabled
if input.Name != "" {
result["name"] = input.Name
} else if input.NamePrefix != "" {
result["name"] = buildInstanceName(input.NamePrefix)
}
if input.Package != "" {
result["package"] = input.Package
}
if input.Image != "" {
result["image"] = input.Image
}
// If we are passed []string from input.Networks that do not conflict with networks provided by NetworkObjects, add them to the request sent to CloudAPI
var networks []NetworkObject
if len(input.NetworkObjects) > 0 {
networks = append(networks, input.NetworkObjects...)
}
for _, netuuid := range input.Networks {
found := false
for _, net := range networks {
if net.IPv4UUID == netuuid {
found = true
}
}
if !found {
networks = append(networks, NetworkObject{
IPv4UUID: netuuid,
})
}
}
if len(networks) > 0 {
result["networks"] = networks
}
if len(input.Volumes) > 0 {
result["volumes"] = input.Volumes
}
// validate that affinity and locality are not included together
hasAffinity := len(input.Affinity) > 0
hasLocality := len(input.LocalityNear) > 0 || len(input.LocalityFar) > 0
if hasAffinity && hasLocality {
return nil, fmt.Errorf("Cannot include both Affinity and Locality")
}
// affinity takes precedence over locality regardless
if len(input.Affinity) > 0 {
result["affinity"] = input.Affinity
} else {
locality := struct {
Strict bool `json:"strict"`
Near []string `json:"near,omitempty"`
Far []string `json:"far,omitempty"`
}{
Strict: input.LocalityStrict,
Near: input.LocalityNear,
Far: input.LocalityFar,
}
result["locality"] = locality
}
for key, value := range input.Tags {
result[fmt.Sprintf("tag.%s", key)] = value
}
// NOTE(justinwr): CNSTagServices needs to be a tag if available. No other
// CNS tags will be handled at this time.
input.CNS.toTags(result)
if val, found := result[CNSTagServices]; found {
result["tag."+CNSTagServices] = val
delete(result, CNSTagServices)
}
for key, value := range input.Metadata {
result[fmt.Sprintf("metadata.%s", key)] = value
}
return result, nil
}
func (c *InstancesClient) Create(ctx context.Context, input *CreateInstanceInput) (*Instance, error) {
fullPath := path.Join("/", c.client.AccountName, "machines")
body, err := input.toAPI()
if err != nil {
return nil, pkgerrors.Wrap(err, "unable to prepare for machine creation")
}
reqInputs := client.RequestInput{
Method: http.MethodPost,
Path: fullPath,
Body: body,
}
respReader, err := c.client.ExecuteRequest(ctx, reqInputs)
if respReader != nil {
defer respReader.Close()
}
if err != nil {
return nil, pkgerrors.Wrap(err, "unable to create machine")
}
var result *Instance
decoder := json.NewDecoder(respReader)
if err = decoder.Decode(&result); err != nil {
return nil, pkgerrors.Wrap(err, "unable to decode create machine response")
}
return result, nil
}
type DeleteInstanceInput struct {
ID string
}
func (c *InstancesClient) Delete(ctx context.Context, input *DeleteInstanceInput) error {
fullPath := path.Join("/", c.client.AccountName, "machines", input.ID)
reqInputs := client.RequestInput{
Method: http.MethodDelete,
Path: fullPath,
}
response, err := c.client.ExecuteRequestRaw(ctx, reqInputs)
if response == nil {
return pkgerrors.Wrap(err, "unable to delete machine")
}
if response.Body != nil {
defer response.Body.Close()
}
if response.StatusCode == http.StatusNotFound || response.StatusCode == http.StatusGone {
return nil
}
if err != nil {
return pkgerrors.Wrap(err, "unable to decode delete machine response")
}
return nil
}
type DeleteTagsInput struct {
ID string
}
func (c *InstancesClient) DeleteTags(ctx context.Context, input *DeleteTagsInput) error {
fullPath := path.Join("/", c.client.AccountName, "machines", input.ID, "tags")
reqInputs := client.RequestInput{
Method: http.MethodDelete,
Path: fullPath,
}
response, err := c.client.ExecuteRequestRaw(ctx, reqInputs)
if err != nil {
return pkgerrors.Wrap(err, "unable to delete tags from machine")
}
if response == nil {
return fmt.Errorf("DeleteTags request has empty response")
}
if response.Body != nil {
defer response.Body.Close()
}
if response.StatusCode == http.StatusNotFound {
return nil
}
return nil
}
type DeleteTagInput struct {
ID string
Key string
}
func (c *InstancesClient) DeleteTag(ctx context.Context, input *DeleteTagInput) error {
fullPath := path.Join("/", c.client.AccountName, "machines", input.ID, "tags", input.Key)
reqInputs := client.RequestInput{
Method: http.MethodDelete,
Path: fullPath,
}
response, err := c.client.ExecuteRequestRaw(ctx, reqInputs)
if err != nil {
return pkgerrors.Wrap(err, "unable to delete tag from machine")
}
if response == nil {
return fmt.Errorf("DeleteTag request has empty response")
}
if response.Body != nil {
defer response.Body.Close()
}
if response.StatusCode == http.StatusNotFound {
return nil
}
return nil
}
type RenameInstanceInput struct {
ID string
Name string
}
func (c *InstancesClient) Rename(ctx context.Context, input *RenameInstanceInput) error {
fullPath := path.Join("/", c.client.AccountName, "machines", input.ID)
params := &url.Values{}
params.Set("action", "rename")
params.Set("name", input.Name)
reqInputs := client.RequestInput{
Method: http.MethodPost,
Path: fullPath,
Query: params,
}
respReader, err := c.client.ExecuteRequestURIParams(ctx, reqInputs)
if respReader != nil {
defer respReader.Close()
}
if err != nil {
return pkgerrors.Wrap(err, "unable to rename machine")
}
return nil
}
type ReplaceTagsInput struct {
ID string
Tags map[string]interface{}
CNS InstanceCNS
}
// toAPI is used to join Tags and CNS tags into the same JSON object before
// sending an API request to the API gateway.
func (input ReplaceTagsInput) toAPI() map[string]interface{} {
result := map[string]interface{}{}
for key, value := range input.Tags {
result[key] = value
}
input.CNS.toTags(result)
return result
}
func (c *InstancesClient) ReplaceTags(ctx context.Context, input *ReplaceTagsInput) error {
fullPath := path.Join("/", c.client.AccountName, "machines", input.ID, "tags")
reqInputs := client.RequestInput{
Method: http.MethodPut,
Path: fullPath,
Body: input.toAPI(),
}
respReader, err := c.client.ExecuteRequest(ctx, reqInputs)
if respReader != nil {
defer respReader.Close()
}
if err != nil {
return pkgerrors.Wrap(err, "unable to replace machine tags")
}
return nil
}
type AddTagsInput struct {
ID string
Tags map[string]interface{}
}
func (c *InstancesClient) AddTags(ctx context.Context, input *AddTagsInput) error {
fullPath := path.Join("/", c.client.AccountName, "machines", input.ID, "tags")
reqInputs := client.RequestInput{
Method: http.MethodPost,
Path: fullPath,
Body: input.Tags,
}
respReader, err := c.client.ExecuteRequest(ctx, reqInputs)
if respReader != nil {
defer respReader.Close()
}
if err != nil {
return pkgerrors.Wrap(err, "unable to add tags to machine")
}
return nil
}
type GetTagInput struct {
ID string
Key string
}
func (c *InstancesClient) GetTag(ctx context.Context, input *GetTagInput) (string, error) {
fullPath := path.Join("/", c.client.AccountName, "machines", input.ID, "tags", input.Key)
reqInputs := client.RequestInput{
Method: http.MethodGet,
Path: fullPath,
}
respReader, err := c.client.ExecuteRequest(ctx, reqInputs)
if err != nil {
return "", pkgerrors.Wrap(err, "unable to get tag")
}
if respReader != nil {
defer respReader.Close()
}
var result string
decoder := json.NewDecoder(respReader)
if err = decoder.Decode(&result); err != nil {
return "", pkgerrors.Wrap(err, "unable to decode get tag response")
}
return result, nil
}
type ListTagsInput struct {
ID string
}
func (c *InstancesClient) ListTags(ctx context.Context, input *ListTagsInput) (map[string]interface{}, error) {
fullPath := path.Join("/", c.client.AccountName, "machines", input.ID, "tags")
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, pkgerrors.Wrap(err, "unable to list machine tags")
}
var result map[string]interface{}
decoder := json.NewDecoder(respReader)
if err = decoder.Decode(&result); err != nil {
return nil, pkgerrors.Wrap(err, "unable decode list machine tags response")
}
_, tags := TagsExtractMeta(result)
return tags, nil
}
type GetMetadataInput struct {
ID string
Key string
}
// GetMetadata returns a single metadata entry associated with an instance.
func (c *InstancesClient) GetMetadata(ctx context.Context, input *GetMetadataInput) (string, error) {
if input.Key == "" {
return "", fmt.Errorf("Missing metadata Key from input: %s", input.Key)
}
fullPath := path.Join("/", c.client.AccountName, "machines", input.ID, "metadata", input.Key)
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 "", pkgerrors.Wrap(err, "unable to get machine metadata")
}
var result string
decoder := json.NewDecoder(respReader)
if err = decoder.Decode(&result); err != nil {
return "", pkgerrors.Wrap(err, "unable to decode get machine metadata response")
}
return result, nil
}
type ListMetadataInput struct {
ID string
Credentials bool
}
func (c *InstancesClient) ListMetadata(ctx context.Context, input *ListMetadataInput) (map[string]interface{}, error) {
fullPath := path.Join("/", c.client.AccountName, "machines", input.ID, "metadata")
query := &url.Values{}
if input.Credentials {
query.Set("credentials", "true")
}
reqInputs := client.RequestInput{
Method: http.MethodGet,
Path: fullPath,
Query: query,
}
respReader, err := c.client.ExecuteRequest(ctx, reqInputs)
if respReader != nil {
defer respReader.Close()
}
if err != nil {
return nil, pkgerrors.Wrap(err, "unable to list machine metadata")
}
var result map[string]interface{}
decoder := json.NewDecoder(respReader)
if err = decoder.Decode(&result); err != nil {
return nil, pkgerrors.Wrap(err, "unable to decode list machine metadata response")
}
return result, nil
}
type UpdateMetadataInput struct {
ID string
Metadata map[string]interface{}
}
func (c *InstancesClient) UpdateMetadata(ctx context.Context, input *UpdateMetadataInput) (map[string]interface{}, error) {
fullPath := path.Join("/", c.client.AccountName, "machines", input.ID, "metadata")
reqInputs := client.RequestInput{
Method: http.MethodPost,
Path: fullPath,
Body: input.Metadata,
}
respReader, err := c.client.ExecuteRequest(ctx, reqInputs)
if respReader != nil {
defer respReader.Close()
}
if err != nil {
return nil, pkgerrors.Wrap(err, "unable to update machine metadata")
}
var result map[string]interface{}
decoder := json.NewDecoder(respReader)
if err = decoder.Decode(&result); err != nil {
return nil, pkgerrors.Wrap(err, "unable to decode update machine metadata response")
}
return result, nil
}
type DeleteMetadataInput struct {
ID string
Key string
}
// DeleteMetadata deletes a single metadata key from an instance
func (c *InstancesClient) DeleteMetadata(ctx context.Context, input *DeleteMetadataInput) error {
if input.Key == "" {
return fmt.Errorf("Missing metadata Key from input: %s", input.Key)
}
fullPath := path.Join("/", c.client.AccountName, "machines", input.ID, "metadata", input.Key)
reqInputs := client.RequestInput{
Method: http.MethodDelete,
Path: fullPath,
}
respReader, err := c.client.ExecuteRequest(ctx, reqInputs)
if err != nil {
return pkgerrors.Wrap(err, "unable to delete machine metadata")
}
if respReader != nil {
defer respReader.Close()
}
return nil
}
type DeleteAllMetadataInput struct {
ID string
}
// DeleteAllMetadata deletes all metadata keys from this instance
func (c *InstancesClient) DeleteAllMetadata(ctx context.Context, input *DeleteAllMetadataInput) error {
fullPath := path.Join("/", c.client.AccountName, "machines", input.ID, "metadata")
reqInputs := client.RequestInput{
Method: http.MethodDelete,
Path: fullPath,
}
respReader, err := c.client.ExecuteRequest(ctx, reqInputs)
if err != nil {
return pkgerrors.Wrap(err, "unable to delete all machine metadata")
}
if respReader != nil {
defer respReader.Close()
}
return nil
}
type ResizeInstanceInput struct {
ID string
Package string
}
func (c *InstancesClient) Resize(ctx context.Context, input *ResizeInstanceInput) error {
fullPath := path.Join("/", c.client.AccountName, "machines", input.ID)
params := &url.Values{}
params.Set("action", "resize")
params.Set("package", input.Package)
reqInputs := client.RequestInput{
Method: http.MethodPost,
Path: fullPath,
Query: params,
}
respReader, err := c.client.ExecuteRequestURIParams(ctx, reqInputs)
if respReader != nil {
defer respReader.Close()
}
if err != nil {
return pkgerrors.Wrap(err, "unable to resize machine")
}
return nil
}
type EnableFirewallInput struct {
ID string
}
func (c *InstancesClient) EnableFirewall(ctx context.Context, input *EnableFirewallInput) error {
fullPath := path.Join("/", c.client.AccountName, "machines", input.ID)
params := &url.Values{}
params.Set("action", "enable_firewall")
reqInputs := client.RequestInput{
Method: http.MethodPost,
Path: fullPath,
Query: params,
}
respReader, err := c.client.ExecuteRequestURIParams(ctx, reqInputs)
if respReader != nil {
defer respReader.Close()
}
if err != nil {
return pkgerrors.Wrap(err, "unable to enable machine firewall")
}
return nil
}
type DisableFirewallInput struct {
ID string
}
func (c *InstancesClient) DisableFirewall(ctx context.Context, input *DisableFirewallInput) error {
fullPath := path.Join("/", c.client.AccountName, "machines", input.ID)
params := &url.Values{}
params.Set("action", "disable_firewall")
reqInputs := client.RequestInput{
Method: http.MethodPost,
Path: fullPath,
Query: params,
}
respReader, err := c.client.ExecuteRequestURIParams(ctx, reqInputs)
if respReader != nil {
defer respReader.Close()
}
if err != nil {
return pkgerrors.Wrap(err, "unable to disable machine firewall")
}
return nil
}
type ListNICsInput struct {
InstanceID string
}
func (c *InstancesClient) ListNICs(ctx context.Context, input *ListNICsInput) ([]*NIC, error) {
fullPath := path.Join("/", c.client.AccountName, "machines", input.InstanceID, "nics")
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, pkgerrors.Wrap(err, "unable to list machine NICs")
}
var result []*NIC
decoder := json.NewDecoder(respReader)
if err = decoder.Decode(&result); err != nil {
return nil, pkgerrors.Wrap(err, "unable to decode list machine NICs response")
}
return result, nil
}
type GetNICInput struct {
InstanceID string
MAC string
}
func (c *InstancesClient) GetNIC(ctx context.Context, input *GetNICInput) (*NIC, error) {
mac := strings.Replace(input.MAC, ":", "", -1)
fullPath := path.Join("/", c.client.AccountName, "machines", input.InstanceID, "nics", mac)
reqInputs := client.RequestInput{
Method: http.MethodGet,
Path: fullPath,
}
response, err := c.client.ExecuteRequestRaw(ctx, reqInputs)
if err != nil {
return nil, pkgerrors.Wrap(err, "unable to get machine NIC")
}
if response != nil {
defer response.Body.Close()
}
switch response.StatusCode {
case http.StatusNotFound:
return nil, &errors.APIError{
StatusCode: response.StatusCode,
Code: "ResourceNotFound",
}
}
var result *NIC
decoder := json.NewDecoder(response.Body)
if err = decoder.Decode(&result); err != nil {
return nil, pkgerrors.Wrap(err, "unable to decode get machine NIC response")
}
return result, nil
}
type AddNICInput struct {
InstanceID string
Network string
NetworkObject NetworkObject
}
// toAPI is used to build up the JSON Object to send to the API gateway. It
// also will resolve the scenario where a user provides both a NetworkObject
// and a Network. If both are provided, NetworkObject wins.
func (input AddNICInput) toAPI() map[string]interface{} {
result := map[string]interface{}{}
var network NetworkObject
if input.NetworkObject.IPv4UUID != "" {
network = input.NetworkObject
} else {
network = NetworkObject{
IPv4UUID: input.Network,
}
}
result["network"] = network
return result
}
// AddNIC asynchronously adds a NIC to a given instance. If a NIC for a given
// network already exists, a ResourceFound error will be returned. The status
// of the addition of a NIC can be polled by calling GetNIC()'s and testing NIC
// until its state is set to "running". Only one NIC per network may exist.
// Warning: this operation causes the instance to restart.
func (c *InstancesClient) AddNIC(ctx context.Context, input *AddNICInput) (*NIC, error) {
fullPath := path.Join("/", c.client.AccountName, "machines", input.InstanceID, "nics")
reqInputs := client.RequestInput{
Method: http.MethodPost,
Path: fullPath,
Body: input.toAPI(),
}
response, err := c.client.ExecuteRequestRaw(ctx, reqInputs)
if err != nil {
return nil, pkgerrors.Wrap(err, "unable to add NIC to machine")
}
if response != nil {
defer response.Body.Close()
}
switch response.StatusCode {
case http.StatusFound:
return nil, &errors.APIError{
StatusCode: response.StatusCode,
Code: "ResourceFound",
Message: response.Header.Get("Location"),
}
}
var result *NIC
decoder := json.NewDecoder(response.Body)
if err = decoder.Decode(&result); err != nil {
return nil, pkgerrors.Wrap(err, "unable to decode add NIC to machine response")
}
return result, nil
}