BREV-8930 Add NAVER Cloud Platform VM provider support

v1/providers/naver/capabilities.go

@@ -0,0 +1,22 @@
+package v1
+
+import (
+	"context"
+
+	cloud "github.com/brevdev/cloud/v1"
+)
+
+func getNaverCapabilities() cloud.Capabilities {
+	return cloud.Capabilities{
+		cloud.CapabilityCreateInstance,
+		cloud.CapabilityTerminateInstance,
+		cloud.CapabilityCreateTerminateInstance,
+		cloud.CapabilityRebootInstance,
+		cloud.CapabilityStopStartInstance,
+		cloud.CapabilityMachineImage,
+	}
+}
+
+func (c *NaverClient) GetCapabilities(_ context.Context) (cloud.Capabilities, error) {
+	return getNaverCapabilities(), nil
+}

v1/providers/naver/client.go

@@ -0,0 +1,280 @@
+package v1
+
+import (
+	"context"
+	"crypto/hmac"
+	"crypto/sha256"
+	"encoding/base64"
+	"encoding/json"
+	"fmt"
+	"io"
+	"net/http"
+	"net/url"
+	"strings"
+	"time"
+
+	cloud "github.com/brevdev/cloud/v1"
+)
+
+const (
+	CloudProviderID                = "naver"
+	architectureX8664              = "x86_64"
+	defaultBaseURL                 = "https://ncloud.apigw.ntruss.com"
+	defaultBillingBaseURL          = "https://billingapi.apigw.ntruss.com"
+	defaultRegionCode              = "KR"
+	defaultServerImageProductCode  = "SW.VSVR.OS.LNX64.UBNTU.SVR24.G003"
+	defaultSSHUser                 = "root"
+	defaultSSHPort                 = 22
+	defaultInstanceTypePollMinutes = 5
+)
+
+type NaverCredential struct {
+	RefID     string
+	AccessKey string
+	SecretKey string
+}
+
+var _ cloud.CloudCredential = &NaverCredential{}
+
+func NewNaverCredential(refID, accessKey, secretKey string) *NaverCredential {
+	return &NaverCredential{
+		RefID:     refID,
+		AccessKey: accessKey,
+		SecretKey: secretKey,
+	}
+}
+
+func (c *NaverCredential) GetReferenceID() string {
+	return c.RefID
+}
+
+func (c *NaverCredential) GetAPIType() cloud.APIType {
+	return cloud.APITypeGlobal
+}
+
+func (c *NaverCredential) GetCloudProviderID() cloud.CloudProviderID {
+	return CloudProviderID
+}
+
+func (c *NaverCredential) GetTenantID() (string, error) {
+	if c.AccessKey == "" {
+		return "", fmt.Errorf("access key is required")
+	}
+	sum := sha256.Sum256([]byte(c.AccessKey))
+	return fmt.Sprintf("%s-%x", CloudProviderID, sum), nil
+}
+
+func (c *NaverCredential) GetCapabilities(_ context.Context) (cloud.Capabilities, error) {
+	return getNaverCapabilities(), nil
+}
+
+func (c *NaverCredential) MakeClient(_ context.Context, location string) (cloud.CloudClient, error) {
+	return NewNaverClient(c.RefID, c.AccessKey, c.SecretKey, WithLocation(location))
+}
+
+type NaverClient struct {
+	cloud.NotImplCloudClient
+	refID      string
+	accessKey  string
+	secretKey  string
+	baseURL    string
+	billingURL string
+	httpClient *http.Client
+	location   string
+	now        func() time.Time
+}
+
+var _ cloud.CloudClient = &NaverClient{}
+
+type options struct {
+	baseURL    string
+	billingURL string
+	httpClient *http.Client
+	location   string
+	now        func() time.Time
+}
+
+type Option func(*options)
+
+func WithBaseURL(baseURL string) Option {
+	return func(opts *options) {
+		opts.baseURL = strings.TrimRight(baseURL, "/")
+		opts.billingURL = strings.TrimRight(baseURL, "/")
+	}
+}
+
+func WithBillingBaseURL(baseURL string) Option {
+	return func(opts *options) {
+		opts.billingURL = strings.TrimRight(baseURL, "/")
+	}
+}
+
+func WithHTTPClient(client *http.Client) Option {
+	return func(opts *options) {
+		opts.httpClient = client
+	}
+}
+
+func WithLocation(location string) Option {
+	return func(opts *options) {
+		opts.location = location
+	}
+}
+
+func WithClock(now func() time.Time) Option {
+	return func(opts *options) {
+		opts.now = now
+	}
+}
+
+func NewNaverClient(refID, accessKey, secretKey string, opts ...Option) (*NaverClient, error) {
+	if refID == "" {
+		return nil, fmt.Errorf("refID is required")
+	}
+	if accessKey == "" || secretKey == "" {
+		return nil, fmt.Errorf("accessKey and secretKey are required")
+	}
+
+	options := options{
+		baseURL:    defaultBaseURL,
+		billingURL: defaultBillingBaseURL,
+		httpClient: http.DefaultClient,
+		location:   defaultRegionCode,
+		now:        time.Now,
+	}
+	for _, opt := range opts {
+		opt(&options)
+	}
+	if options.location == "" {
+		options.location = defaultRegionCode
+	}
+	if options.httpClient == nil {
+		options.httpClient = http.DefaultClient
+	}
+	if options.now == nil {
+		options.now = time.Now
+	}
+
+	return &NaverClient{
+		refID:      refID,
+		accessKey:  accessKey,
+		secretKey:  secretKey,
+		baseURL:    options.baseURL,
+		billingURL: options.billingURL,
+		httpClient: options.httpClient,
+		location:   options.location,
+		now:        options.now,
+	}, nil
+}
+
+func (c *NaverClient) GetAPIType() cloud.APIType {
+	return cloud.APITypeGlobal
+}
+
+func (c *NaverClient) GetCloudProviderID() cloud.CloudProviderID {
+	return CloudProviderID
+}
+
+func (c *NaverClient) GetReferenceID() string {
+	return c.refID
+}
+
+func (c *NaverClient) GetTenantID() (string, error) {
+	sum := sha256.Sum256([]byte(c.accessKey))
+	return fmt.Sprintf("%s-%x", CloudProviderID, sum), nil
+}
+
+func (c *NaverClient) MakeClient(_ context.Context, location string) (cloud.CloudClient, error) {
+	if location != "" {
+		c.location = location
+	}
+	return c, nil
+}
+
+func (c *NaverClient) do(ctx context.Context, action string, params url.Values, dst any) error {
+	return c.doNcloud(ctx, c.baseURL, "/vserver/v2/"+action, action, params, dst)
+}
+
+func (c *NaverClient) doBilling(ctx context.Context, action string, params url.Values, dst any) error {
+	return c.doNcloud(ctx, c.billingURL, "/billing/v1/"+action, action, params, dst)
+}
+
+func (c *NaverClient) doNcloud(ctx context.Context, baseURL, path, action string, params url.Values, dst any) error {
+	if params == nil {
+		params = url.Values{}
+	}
+	params.Set("responseFormatType", "json")
+
+	query := params.Encode()
+	requestURI := path
+	if query != "" {
+		requestURI += "?" + query
+	}
+
+	req, err := http.NewRequestWithContext(ctx, http.MethodGet, baseURL+requestURI, nil)
+	if err != nil {
+		return err
+	}
+	c.sign(req, requestURI)
+
+	resp, err := c.httpClient.Do(req)
+	if err != nil {
+		return err
+	}
+	defer func() { _ = resp.Body.Close() }()
+
+	body, err := io.ReadAll(resp.Body)
+	if err != nil {
+		return err
+	}
+	if resp.StatusCode < 200 || resp.StatusCode >= 300 {
+		return fmt.Errorf("naver API %s failed with status %d: %s", action, resp.StatusCode, strings.TrimSpace(string(body)))
+	}
+	if err := json.Unmarshal(body, dst); err != nil {
+		return fmt.Errorf("decode naver API %s response: %w", action, err)
+	}
+	if err := responseErr(dst); err != nil {
+		return fmt.Errorf("naver API %s failed: %w", action, err)
+	}
+	return nil
+}
+
+func (c *NaverClient) sign(req *http.Request, requestURI string) {
+	timestamp := fmt.Sprintf("%d", c.now().UnixMilli())
+	message := fmt.Sprintf("%s\n%s\n%s\n%s", req.Method, requestURI, timestamp, c.accessKey)
+	mac := hmac.New(sha256.New, []byte(c.secretKey))
+	_, _ = mac.Write([]byte(message))
+	signature := base64.StdEncoding.EncodeToString(mac.Sum(nil))
+
+	req.Header.Set("x-ncp-apigw-timestamp", timestamp)
+	req.Header.Set("x-ncp-iam-access-key", c.accessKey)
+	req.Header.Set("x-ncp-apigw-signature-v2", signature)
+}
+
+type naverResponse interface {
+	apiError() error
+}
+
+func responseErr(dst any) error {
+	if resp, ok := dst.(naverResponse); ok {
+		return resp.apiError()
+	}
+	return nil
+}
+
+type responseMeta struct {
+	ReturnCode    string `json:"returnCode"`
+	ReturnMessage string `json:"returnMessage"`
+}
+
+func (m responseMeta) apiError() error {
+	if m.ReturnCode != "" && m.ReturnCode != "0" {
+		return fmt.Errorf("%s: %s", m.ReturnCode, m.ReturnMessage)
+	}
+	return nil
+}
+
+type codeName struct {
+	Code     string `json:"code"`
+	CodeName string `json:"codeName"`
+}

v1/providers/naver/client_test.go

@@ -0,0 +1,82 @@
+package v1
+
+import (
+	"context"
+	"crypto/hmac"
+	"crypto/sha256"
+	"encoding/base64"
+	"fmt"
+	"net/http"
+	"net/http/httptest"
+	"testing"
+	"time"
+
+	cloud "github.com/brevdev/cloud/v1"
+)
+
+func TestNaverClientSignsRequests(t *testing.T) {
+	const (
+		accessKey = "test-access"
+		secretKey = "test-secret"
+	)
+	fixedNow := time.UnixMilli(1700000000123)
+	var sawRequest bool
+
+	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		sawRequest = true
+		if got := r.Header.Get("x-ncp-apigw-timestamp"); got != "1700000000123" {
+			t.Fatalf("timestamp header = %q, want fixed timestamp", got)
+		}
+		if got := r.Header.Get("x-ncp-iam-access-key"); got != accessKey {
+			t.Fatalf("access key header = %q, want %q", got, accessKey)
+		}
+
+		expectedMessage := fmt.Sprintf("%s\n%s\n%s\n%s", r.Method, r.URL.RequestURI(), "1700000000123", accessKey)
+		mac := hmac.New(sha256.New, []byte(secretKey))
+		_, _ = mac.Write([]byte(expectedMessage))
+		expectedSignature := base64.StdEncoding.EncodeToString(mac.Sum(nil))
+		if got := r.Header.Get("x-ncp-apigw-signature-v2"); got != expectedSignature {
+			t.Fatalf("signature header = %q, want %q", got, expectedSignature)
+		}
+
+		w.Header().Set("Content-Type", "application/json")
+		_, _ = w.Write([]byte(`{"getRegionListResponse":{"returnCode":"0","returnMessage":"success","totalRows":1,"regionList":[{"regionCode":"KR","regionName":"Korea"}]}}`))
+	}))
+	defer server.Close()
+
+	client, err := NewNaverClient("ref-1", accessKey, secretKey, WithBaseURL(server.URL), WithClock(func() time.Time {
+		return fixedNow
+	}))
+	if err != nil {
+		t.Fatalf("NewNaverClient() error = %v", err)
+	}
+
+	_, err = client.GetLocations(context.Background(), cloud.GetLocationsArgs{})
+	if err != nil {
+		t.Fatalf("GetLocations() error = %v", err)
+	}
+	if !sawRequest {
+		t.Fatal("server did not receive request")
+	}
+}
+
+func TestNaverCredentialCreatesClient(t *testing.T) {
+	cred := NewNaverCredential("ref-1", "access", "secret")
+	if got := cred.GetReferenceID(); got != "ref-1" {
+		t.Fatalf("reference ID = %q", got)
+	}
+	if got := cred.GetCloudProviderID(); got != CloudProviderID {
+		t.Fatalf("cloud provider ID = %q", got)
+	}
+	if got := cred.GetAPIType(); got != cloud.APITypeGlobal {
+		t.Fatalf("API type = %q", got)
+	}
+
+	client, err := cred.MakeClient(context.Background(), "KR")
+	if err != nil {
+		t.Fatalf("MakeClient() error = %v", err)
+	}
+	if got := client.GetReferenceID(); got != "ref-1" {
+		t.Fatalf("client reference ID = %q", got)
+	}
+}