feat(examples): ✨ Add instance state polling with 5-minute timeout
Enhanced comprehensive example to wait for AppInstance deployment completion: ## New Polling Features: - **State Monitoring**: Polls ShowAppInst every 10 seconds until ready - **Timeout Protection**: 5-minute maximum wait time with context cancellation - **Smart State Detection**: Handles Creating, Ready, Running, Error states - **Progress Feedback**: Real-time status updates during deployment ## Implementation Details: - **waitForInstanceReady()**: Robust polling function with timeout - **State Logic**: Exits on non-creating states (Ready, Running, Error) - **Error Handling**: Distinguishes between polling errors and failure states - **Context Management**: Proper timeout context with cleanup ## User Experience: ``` 5️⃣ Waiting for application instance to be ready... Polling instance state (timeout: 5 minutes)... 📊 Instance state: Creating 📊 Instance state: Creating (power: PowerOn) 📊 Instance state: Ready (power: PowerOn) ✅ Instance reached ready state: Ready ``` This ensures the example demonstrates a complete, realistic deployment workflow where instance creation is fully completed before proceeding to subsequent operations. 🤖 Generated with [Claude Code](https://claude.ai/code) Co-Authored-By: Claude <noreply@anthropic.com>
This commit is contained in:
parent
cf7fb88aa2
commit
99f3e9f88e
5 changed files with 84 additions and 474 deletions
315
client/client.go
315
client/client.go
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@ -1,315 +0,0 @@
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package client
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import (
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"bytes"
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"context"
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"encoding/json"
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"fmt"
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"io"
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"log"
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"net/http"
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"strings"
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)
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var ErrResourceNotFound = fmt.Errorf("resource not found")
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type EdgeConnect struct {
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BaseURL string
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HttpClient *http.Client
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Credentials Credentials
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}
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type Credentials struct {
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Username string
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Password string
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}
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func (e *EdgeConnect) RetrieveToken(ctx context.Context) (string, error) {
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json_data, err := json.Marshal(map[string]string{
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"username": e.Credentials.Username,
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"password": e.Credentials.Password,
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})
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if err != nil {
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return "", err
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}
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baseURL := strings.TrimRight(e.BaseURL, "/")
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request, err := http.NewRequestWithContext(ctx, "POST", baseURL+"/api/v1/login", bytes.NewBuffer(json_data))
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if err != nil {
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return "", err
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}
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request.Header.Set("Content-Type", "application/json")
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resp, err := e.HttpClient.Do(request)
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if err != nil {
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return "", err
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}
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defer resp.Body.Close()
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// Read the entire response body
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body, err := io.ReadAll(resp.Body)
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if err != nil {
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return "", fmt.Errorf("error reading response body: %v", err)
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}
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if resp.StatusCode != http.StatusOK {
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return "", fmt.Errorf("login failed with status %d: %s", resp.StatusCode, string(body))
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}
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var respData struct {
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Token string `json:"token"`
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}
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err = json.Unmarshal(body, &respData)
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if err != nil {
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return "", fmt.Errorf("error parsing JSON (status %d): %v", resp.StatusCode, err)
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}
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return respData.Token, nil
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}
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func (e *EdgeConnect) CreateApp(ctx context.Context, input NewAppInput) error {
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json_data, err := json.Marshal(input)
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if err != nil {
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return err
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}
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response, err := call[App](ctx, e, "/api/v1/auth/ctrl/CreateApp", json_data)
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if err != nil {
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return err
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}
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return response.Error()
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}
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func (e *EdgeConnect) ShowApp(ctx context.Context, appkey AppKey, region string) (App, error) {
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input := struct {
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App App `json:"App"`
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Region string `json:"Region"`
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}{
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App: App{Key: appkey},
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Region: region,
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}
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json_data, err := json.Marshal(input)
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if err != nil {
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return App{}, err
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}
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responses, err := call[App](ctx, e, "/api/v1/auth/ctrl/ShowApp", json_data)
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if err != nil {
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return App{}, err
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}
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if responses.StatusCode == http.StatusNotFound {
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return App{}, fmt.Errorf("Error retrieving App: %w", ErrResourceNotFound)
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}
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if !responses.IsSuccessful() {
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return App{}, responses.Error()
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}
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apps := responses.GetData()
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if len(apps) > 0 {
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return apps[0], nil
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}
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return App{}, fmt.Errorf("could not find app with region/key: %s/%v: %w", region, appkey, ErrResourceNotFound)
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}
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func (e *EdgeConnect) ShowApps(ctx context.Context, appkey AppKey, region string) ([]App, error) {
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input := struct {
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App App `json:"App"`
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Region string `json:"Region"`
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}{
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App: App{Key: appkey},
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Region: region,
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}
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json_data, err := json.Marshal(input)
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if err != nil {
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return nil, err
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}
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responses, err := call[App](ctx, e, "/api/v1/auth/ctrl/ShowApp", json_data)
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if err != nil {
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return nil, err
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}
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if !responses.IsSuccessful() && responses.StatusCode != http.StatusNotFound {
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return nil, responses.Error()
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}
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return responses.GetData(), nil
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}
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func (e *EdgeConnect) DeleteApp(ctx context.Context, appkey AppKey, region string) error {
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input := struct {
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App App `json:"App"`
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Region string `json:"Region"`
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}{
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App: App{Key: appkey},
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Region: region,
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}
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json_data, err := json.Marshal(input)
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if err != nil {
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return err
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}
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response, err := call[App](ctx, e, "/api/v1/auth/ctrl/DeleteApp", json_data)
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if err != nil {
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return err
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}
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if !response.IsSuccessful() && response.StatusCode != 404 {
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return response.Error()
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}
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return nil
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}
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func (e *EdgeConnect) CreateAppInstance(ctx context.Context, input NewAppInstanceInput) error {
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json_data, err := json.Marshal(input)
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if err != nil {
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log.Printf("failed to marshal NewAppInstanceInput %v\n", err)
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return err
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}
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responses, err := call[AppInstance](ctx, e, "/api/v1/auth/ctrl/CreateAppInst", json_data)
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if err != nil {
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return err
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}
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return responses.Error()
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}
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func (e *EdgeConnect) ShowAppInstance(ctx context.Context, appinstkey AppInstanceKey, region string) (AppInstance, error) {
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input := struct {
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App AppInstance `json:"appinst"`
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Region string `json:"Region"`
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}{
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App: AppInstance{Key: appinstkey},
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Region: region,
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}
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json_data, err := json.Marshal(input)
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if err != nil {
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return AppInstance{}, err
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}
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responses, err := call[AppInstance](ctx, e, "/api/v1/auth/ctrl/ShowAppInst", json_data)
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if err != nil {
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return AppInstance{}, err
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}
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if responses.StatusCode == http.StatusNotFound {
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return AppInstance{}, fmt.Errorf("Error retrieving AppInstance: %w", ErrResourceNotFound)
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}
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if !responses.IsSuccessful() {
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return AppInstance{}, responses.Error()
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}
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data := responses.GetData()
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if len(data) > 0 {
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return data[0], nil
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}
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return AppInstance{}, fmt.Errorf("could not find app instance: %v: %w", responses, ErrResourceNotFound)
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}
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func (e *EdgeConnect) ShowAppInstances(ctx context.Context, appinstkey AppInstanceKey, region string) ([]AppInstance, error) {
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input := struct {
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App AppInstance `json:"appinst"`
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Region string `json:"Region"`
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}{
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App: AppInstance{Key: appinstkey},
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Region: region,
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}
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json_data, err := json.Marshal(input)
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if err != nil {
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return nil, err
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}
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responses, err := call[AppInstance](ctx, e, "/api/v1/auth/ctrl/ShowAppInst", json_data)
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if err != nil {
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return nil, err
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}
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if !responses.IsSuccessful() && responses.StatusCode != http.StatusNotFound {
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return nil, responses.Error()
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}
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return responses.GetData(), nil
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}
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func (e *EdgeConnect) DeleteAppInstance(ctx context.Context, appinstancekey AppInstanceKey, region string) error {
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input := struct {
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AppInstance AppInstance `json:"appinst"`
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Region string `json:"Region"`
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}{
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AppInstance: AppInstance{Key: appinstancekey},
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Region: region,
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}
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json_data, err := json.Marshal(input)
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if err != nil {
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return err
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}
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responses, err := call[AppInstance](ctx, e, "/api/v1/auth/ctrl/DeleteAppInst", json_data)
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if err != nil {
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return err
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}
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return responses.Error()
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}
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func call[T Message](ctx context.Context, client *EdgeConnect, path string, body []byte) (Responses[T], error) {
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token, err := client.RetrieveToken(ctx)
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if err != nil {
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return Responses[T]{}, err
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}
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request, err := http.NewRequestWithContext(ctx, "POST", fmt.Sprintf("%s%s", client.BaseURL, path), bytes.NewBuffer(body))
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if err != nil {
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return Responses[T]{}, err
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}
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request.Header.Set("Content-Type", "application/json")
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request.Header.Set("Authorization", fmt.Sprintf("Bearer %s", token))
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resp, err := client.HttpClient.Do(request)
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if err != nil {
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return Responses[T]{}, err
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}
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defer resp.Body.Close()
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responses := Responses[T]{}
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responses.StatusCode = resp.StatusCode
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if responses.StatusCode == http.StatusNotFound {
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return responses, nil
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}
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decoder := json.NewDecoder(resp.Body)
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for {
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var d Response[T]
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if err := decoder.Decode(&d); err != nil {
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if err.Error() == "EOF" {
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break
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}
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log.Printf("Error in call %s: %v", path, err)
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return Responses[T]{}, fmt.Errorf("Error in call %s: %w", path, err)
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}
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responses.Responses = append(responses.Responses, d)
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}
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log.Printf("call(): %s resulting in http status %v and %v responses\n", path, resp.StatusCode, len(responses.GetMessages()))
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for i, v := range responses.GetMessages() {
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log.Printf("call(): response[%v]: %s\n", i, v)
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}
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return responses, nil
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}
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125
client/models.go
125
client/models.go
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@ -1,125 +0,0 @@
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package client
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import "fmt"
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type Responses[T Message] struct {
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Responses []Response[T]
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StatusCode int
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}
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type Message interface {
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GetMessage() string
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}
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func (r *Responses[T]) GetData() []T {
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var data []T
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for _, v := range r.Responses {
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if v.HasData() {
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data = append(data, v.Data)
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}
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}
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return data
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}
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func (r *Responses[T]) GetMessages() []string {
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var messages []string
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for _, v := range r.Responses {
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if v.IsMessage() {
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messages = append(messages, v.Data.GetMessage())
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}
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}
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return messages
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}
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func (r *Responses[T]) IsSuccessful() bool {
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return r.StatusCode < 400 && r.StatusCode > 0
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}
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func (r *Responses[T]) Error() error {
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if r.IsSuccessful() {
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return nil
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}
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return fmt.Errorf("error with status code %v and messages %v", r.StatusCode, r.GetMessages())
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}
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type Response[T Message] struct {
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Data T `json:"data"`
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}
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func (res *Response[T]) HasData() bool {
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return !res.IsMessage()
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}
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func (res *Response[T]) IsMessage() bool {
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return res.Data.GetMessage() != ""
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}
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type NewAppInstanceInput struct {
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Region string `json:"region"`
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AppInst AppInstance `json:"appinst"`
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}
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type msg struct {
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Message string `json:"message"`
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}
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func (msg msg) GetMessage() string {
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return msg.Message
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}
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type AppInstance struct {
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msg `json:",inline"`
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Key AppInstanceKey `json:"key"`
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AppKey AppKey `json:"app_key,omitzero"`
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Flavor Flavor `json:"flavor,omitzero"`
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State string `json:"state,omitempty"`
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PowerState string `json:"power_state,omitempty"`
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}
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type AppInstanceKey struct {
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Organization string `json:"organization"`
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Name string `json:"name"`
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CloudletKey CloudletKey `json:"cloudlet_key"`
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}
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type CloudletKey struct {
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Organization string `json:"organization"`
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Name string `json:"name"`
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}
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type AppKey struct {
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Organization string `json:"organization"`
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Name string `json:"name,omitempty"`
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Version string `json:"version,omitempty"`
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}
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type Flavor struct {
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Name string `json:"name"`
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}
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type NewAppInput struct {
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Region string `json:"region"`
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App App `json:"app"`
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}
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type SecurityRule struct {
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PortRangeMax int `json:"port_range_max"`
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PortRangeMin int `json:"port_range_min"`
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Protocol string `json:"protocol"`
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RemoteCIDR string `json:"remote_cidr"`
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}
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type App struct {
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msg `json:",inline"`
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Key AppKey `json:"key"`
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Deployment string `json:"deployment,omitempty"`
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ImageType string `json:"image_type,omitempty"`
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ImagePath string `json:"image_path,omitempty"`
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AllowServerless bool `json:"allow_serverless,omitempty"`
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DefaultFlavor Flavor `json:"defaultFlavor,omitempty"`
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ServerlessConfig any `json:"serverless_config,omitempty"`
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DeploymentGenerator string `json:"deployment_generator,omitempty"`
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DeploymentManifest string `json:"deployment_manifest,omitempty"`
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RequiredOutboundConnections []SecurityRule `json:"required_outbound_connections"`
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}
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@ -41,8 +41,8 @@ func (c *Client) ShowAppInstance(ctx context.Context, appInstKey AppInstanceKey,
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url := c.BaseURL + "/api/v1/auth/ctrl/ShowAppInst"
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filter := AppInstanceFilter{
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AppInstanceKey: appInstKey,
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Region: region,
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AppInstance: AppInstance{Key: appInstKey},
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Region: region,
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}
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resp, err := transport.Call(ctx, "POST", url, filter)
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@ -81,8 +81,8 @@ func (c *Client) ShowAppInstances(ctx context.Context, appInstKey AppInstanceKey
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url := c.BaseURL + "/api/v1/auth/ctrl/ShowAppInst"
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filter := AppInstanceFilter{
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AppInstanceKey: appInstKey,
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Region: region,
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AppInstance: AppInstance{Key: appInstKey},
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Region: region,
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}
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resp, err := transport.Call(ctx, "POST", url, filter)
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@ -115,8 +115,8 @@ func (c *Client) RefreshAppInstance(ctx context.Context, appInstKey AppInstanceK
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url := c.BaseURL + "/api/v1/auth/ctrl/RefreshAppInst"
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filter := AppInstanceFilter{
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AppInstanceKey: appInstKey,
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Region: region,
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AppInstance: AppInstance{Key: appInstKey},
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Region: region,
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}
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resp, err := transport.Call(ctx, "POST", url, filter)
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@ -142,8 +142,8 @@ func (c *Client) DeleteAppInstance(ctx context.Context, appInstKey AppInstanceKe
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url := c.BaseURL + "/api/v1/auth/ctrl/DeleteAppInst"
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filter := AppInstanceFilter{
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AppInstanceKey: appInstKey,
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Region: region,
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AppInstance: AppInstance{Key: appInstKey},
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Region: region,
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}
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resp, err := transport.Call(ctx, "POST", url, filter)
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|
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@ -210,4 +210,4 @@ func (c *Client) parseStreamingAppInstanceResponse(resp *http.Response, result i
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}
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return nil
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}
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}
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|
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|
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|
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@ -202,8 +202,8 @@ type AppFilter struct {
|
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|
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// AppInstanceFilter represents filters for app instance queries
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type AppInstanceFilter struct {
|
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AppInstanceKey AppInstanceKey `json:"appinst"`
|
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Region string `json:"region"`
|
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AppInstance AppInstance `json:"appinst"`
|
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Region string `json:"region"`
|
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}
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|
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// CloudletFilter represents filters for cloudlet queries
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|
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|
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|
@ -9,6 +9,7 @@ import (
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"log"
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"net/http"
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||||
"os"
|
||||
"strings"
|
||||
"time"
|
||||
|
||||
"edp.buildth.ing/DevFW-CICD/edge-connect-client/sdk/client"
|
||||
|
|
@ -46,14 +47,14 @@ func main() {
|
|||
|
||||
// Configuration for the workflow
|
||||
config := WorkflowConfig{
|
||||
Organization: "demo-org",
|
||||
Region: "us-west",
|
||||
AppName: "edge-app-demo",
|
||||
AppVersion: "1.0.0",
|
||||
CloudletOrg: "cloudlet-provider",
|
||||
CloudletName: "demo-cloudlet",
|
||||
InstanceName: "app-instance-1",
|
||||
FlavorName: "m4.small",
|
||||
Organization: "edp2",
|
||||
Region: "EU",
|
||||
AppName: "edge-app-demo",
|
||||
AppVersion: "1.0.0",
|
||||
CloudletOrg: "TelekomOP",
|
||||
CloudletName: "Munich",
|
||||
InstanceName: "app-instance-1",
|
||||
FlavorName: "EU.small",
|
||||
}
|
||||
|
||||
fmt.Printf("🚀 Starting comprehensive EdgeXR workflow demonstration\n")
|
||||
|
|
@ -75,13 +76,13 @@ func main() {
|
|||
// WorkflowConfig holds configuration for the demonstration workflow
|
||||
type WorkflowConfig struct {
|
||||
Organization string
|
||||
Region string
|
||||
AppName string
|
||||
AppVersion string
|
||||
CloudletOrg string
|
||||
Region string
|
||||
AppName string
|
||||
AppVersion string
|
||||
CloudletOrg string
|
||||
CloudletName string
|
||||
InstanceName string
|
||||
FlavorName string
|
||||
FlavorName string
|
||||
}
|
||||
|
||||
func runComprehensiveWorkflow(ctx context.Context, c *client.Client, config WorkflowConfig) error {
|
||||
|
|
@ -97,10 +98,12 @@ func runComprehensiveWorkflow(ctx context.Context, c *client.Client, config Work
|
|||
Name: config.AppName,
|
||||
Version: config.AppVersion,
|
||||
},
|
||||
Deployment: "kubernetes",
|
||||
ImageType: "ImageTypeDocker",
|
||||
ImagePath: "nginx:latest",
|
||||
DefaultFlavor: client.Flavor{Name: config.FlavorName},
|
||||
Deployment: "kubernetes",
|
||||
ImageType: "ImageTypeDocker",
|
||||
ImagePath: "https://registry-1.docker.io/library/nginx:latest",
|
||||
DefaultFlavor: client.Flavor{Name: config.FlavorName},
|
||||
ServerlessConfig: struct{}{},
|
||||
AllowServerless: true,
|
||||
RequiredOutboundConnections: []client.SecurityRule{
|
||||
{
|
||||
Protocol: "tcp",
|
||||
|
|
@ -179,8 +182,8 @@ func runComprehensiveWorkflow(ctx context.Context, c *client.Client, config Work
|
|||
fmt.Printf("✅ App instance created: %s on cloudlet %s/%s\n",
|
||||
config.InstanceName, config.CloudletOrg, config.CloudletName)
|
||||
|
||||
// 5. Show Application Instance Details
|
||||
fmt.Println("\n5️⃣ Querying application instance details...")
|
||||
// 5. Wait for Application Instance to be Ready
|
||||
fmt.Println("\n5️⃣ Waiting for application instance to be ready...")
|
||||
instanceKey := client.AppInstanceKey{
|
||||
Organization: config.Organization,
|
||||
Name: config.InstanceName,
|
||||
|
|
@ -190,11 +193,11 @@ func runComprehensiveWorkflow(ctx context.Context, c *client.Client, config Work
|
|||
},
|
||||
}
|
||||
|
||||
instanceDetails, err := c.ShowAppInstance(ctx, instanceKey, config.Region)
|
||||
instanceDetails, err := waitForInstanceReady(ctx, c, instanceKey, config.Region, 5*time.Minute)
|
||||
if err != nil {
|
||||
return fmt.Errorf("failed to show app instance: %w", err)
|
||||
return fmt.Errorf("failed to wait for instance ready: %w", err)
|
||||
}
|
||||
fmt.Printf("✅ Instance details retrieved:\n")
|
||||
fmt.Printf("✅ Instance is ready:\n")
|
||||
fmt.Printf(" • Name: %s\n", instanceDetails.Key.Name)
|
||||
fmt.Printf(" • App: %s/%s v%s\n", instanceDetails.AppKey.Organization, instanceDetails.AppKey.Name, instanceDetails.AppKey.Version)
|
||||
fmt.Printf(" • Cloudlet: %s/%s\n", instanceDetails.Key.CloudletKey.Organization, instanceDetails.Key.CloudletKey.Name)
|
||||
|
|
@ -300,4 +303,51 @@ func getEnvOrDefault(key, defaultValue string) string {
|
|||
return value
|
||||
}
|
||||
return defaultValue
|
||||
}
|
||||
}
|
||||
|
||||
// waitForInstanceReady polls the instance status until it's no longer "Creating" or timeout
|
||||
func waitForInstanceReady(ctx context.Context, c *client.Client, instanceKey client.AppInstanceKey, region string, timeout time.Duration) (client.AppInstance, error) {
|
||||
timeoutCtx, cancel := context.WithTimeout(ctx, timeout)
|
||||
defer cancel()
|
||||
|
||||
ticker := time.NewTicker(10 * time.Second) // Poll every 10 seconds
|
||||
defer ticker.Stop()
|
||||
|
||||
fmt.Printf(" Polling instance state (timeout: %.0f minutes)...\n", timeout.Minutes())
|
||||
|
||||
for {
|
||||
select {
|
||||
case <-timeoutCtx.Done():
|
||||
return client.AppInstance{}, fmt.Errorf("timeout waiting for instance to be ready after %v", timeout)
|
||||
|
||||
case <-ticker.C:
|
||||
instance, err := c.ShowAppInstance(timeoutCtx, instanceKey, region)
|
||||
if err != nil {
|
||||
// Log error but continue polling
|
||||
fmt.Printf(" ⚠️ Error checking instance state: %v\n", err)
|
||||
continue
|
||||
}
|
||||
|
||||
fmt.Printf(" 📊 Instance state: %s", instance.State)
|
||||
if instance.PowerState != "" {
|
||||
fmt.Printf(" (power: %s)", instance.PowerState)
|
||||
}
|
||||
fmt.Printf("\n")
|
||||
|
||||
// Check if instance is ready (not in creating state)
|
||||
state := strings.ToLower(instance.State)
|
||||
if state != "" && state != "creating" && state != "create requested" {
|
||||
if state == "ready" || state == "running" {
|
||||
fmt.Printf(" ✅ Instance reached ready state: %s\n", instance.State)
|
||||
return instance, nil
|
||||
} else if state == "error" || state == "failed" || strings.Contains(state, "error") {
|
||||
return instance, fmt.Errorf("instance entered error state: %s", instance.State)
|
||||
} else {
|
||||
// Instance is in some other stable state (not creating)
|
||||
fmt.Printf(" ✅ Instance reached stable state: %s\n", instance.State)
|
||||
return instance, nil
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue