Fix some incorrect parameter parsing in Gitlab Runner (#6173)

Signed-off-by: wangrushen <wrs369@88.com>

CHANGELOG.md

@@ -61,6 +61,7 @@ To learn more about active deprecations, we recommend checking [GitHub Discussio
 - **CloudEventSource**: Introduce ClusterCloudEventSource ([#3533](https://github.com/kedacore/keda/issues/3533))
 - **CloudEventSource**: Provide ClusterCloudEventSource around the management of ScaledJobs resources ([#3523](https://github.com/kedacore/keda/issues/3523))
 - **CloudEventSource**: Provide ClusterCloudEventSource around the management of TriggerAuthentication/ClusterTriggerAuthentication resources ([#3524](https://github.com/kedacore/keda/issues/3524))
+- **Github Action**: Fix panic when env for runnerScopeFromEnv or ownerFromEnv is empty ([#6156](https://github.com/kedacore/keda/issues/6156))
 
 #### Experimental
 

pkg/scalers/github_runner_scaler.go

@@ -362,8 +362,12 @@ func getValueFromMetaOrEnv(key string, metadata map[string]string, env map[strin
 	if val, ok := metadata[key]; ok && val != "" {
 		return val, nil
 	} else if val, ok := metadata[key+"FromEnv"]; ok && val != "" {
-		return env[val], nil
+		if envVal, ok := env[val]; ok && envVal != "" {
+			return envVal, nil
+		}
+		return "", fmt.Errorf("%s %s env variable value is empty", key, val)
 	}
+
 	return "", fmt.Errorf("no %s given", key)
 }
 
@@ -444,12 +448,14 @@ func setupGitHubApp(config *scalersconfig.ScalerConfig) (*int64, *int64, *string
 	var instID *int64
 	var appKey *string
 
-	if val, err := getInt64ValueFromMetaOrEnv("applicationID", config); err == nil && val != -1 {
-		appID = &val
+	appIDVal, appIDErr := getInt64ValueFromMetaOrEnv("applicationID", config)
+	if appIDErr == nil && appIDVal != -1 {
+		appID = &appIDVal
 	}
 
-	if val, err := getInt64ValueFromMetaOrEnv("installationID", config); err == nil && val != -1 {
-		instID = &val
+	instIDVal, instIDErr := getInt64ValueFromMetaOrEnv("installationID", config)
+	if instIDErr == nil && instIDVal != -1 {
+		instID = &instIDVal
 	}
 
 	if val, ok := config.AuthParams["appKey"]; ok && val != "" {
@@ -458,7 +464,15 @@ func setupGitHubApp(config *scalersconfig.ScalerConfig) (*int64, *int64, *string
 
 	if (appID != nil || instID != nil || appKey != nil) &&
 		(appID == nil || instID == nil || appKey == nil) {
-		return nil, nil, nil, fmt.Errorf("applicationID, installationID and applicationKey must be given")
+		if appIDErr != nil {
+			return nil, nil, nil, appIDErr
+		}
+
+		if instIDErr != nil {
+			return nil, nil, nil, instIDErr
+		}
+
+		return nil, nil, nil, fmt.Errorf("no applicationKey given")
 	}
 
 	return appID, instID, appKey, nil

pkg/scalers/github_runner_scaler_test.go

@@ -73,9 +73,9 @@ var testGitHubRunnerMetadata = []parseGitHubRunnerMetadataTestData{
 	// empty token
 	{"empty targetWorkflowQueueLength", map[string]string{"githubApiURL": "https://api.github.com", "runnerScope": REPO, "owner": "ownername", "repos": "reponame"}, true, false, ""},
 	// missing installationID From Env
-	{"missing installationID Env", map[string]string{"githubApiURL": "https://api.github.com", "runnerScope": ORG, "owner": "ownername", "repos": "reponame,otherrepo", "labels": "golang", "targetWorkflowQueueLength": "1", "applicationIDFromEnv": "APP_ID"}, true, true, "applicationID, installationID and applicationKey must be given"},
+	{"missing installationID Env", map[string]string{"githubApiURL": "https://api.github.com", "runnerScope": ORG, "owner": "ownername", "repos": "reponame,otherrepo", "labels": "golang", "targetWorkflowQueueLength": "1", "applicationIDFromEnv": "APP_ID"}, true, true, "error parsing installationID: no installationID given"},
 	// missing applicationID From Env
-	{"missing applicationId Env", map[string]string{"githubApiURL": "https://api.github.com", "runnerScope": ORG, "owner": "ownername", "repos": "reponame,otherrepo", "labels": "golang", "targetWorkflowQueueLength": "1", "installationIDFromEnv": "INST_ID"}, true, true, "applicationID, installationID and applicationKey must be given"},
+	{"missing applicationID Env", map[string]string{"githubApiURL": "https://api.github.com", "runnerScope": ORG, "owner": "ownername", "repos": "reponame,otherrepo", "labels": "golang", "targetWorkflowQueueLength": "1", "installationIDFromEnv": "INST_ID"}, true, true, "error parsing applicationID: no applicationID given"},
 	// nothing passed
 	{"empty, no envs", map[string]string{}, false, true, "no runnerScope given"},
 	//  empty githubApiURL
@@ -105,11 +105,15 @@ var testGitHubRunnerMetadata = []parseGitHubRunnerMetadataTestData{
 	// empty repos, no envs
 	{"empty repos, no envs", map[string]string{"githubApiURL": "https://api.github.com", "runnerScope": ORG, "owner": "ownername", "labels": "golang", "repos": "", "targetWorkflowQueueLength": "1"}, false, false, ""},
 	// missing installationID
-	{"missing installationID", map[string]string{"githubApiURL": "https://api.github.com", "runnerScope": ORG, "owner": "ownername", "repos": "reponame,otherrepo", "labels": "golang", "targetWorkflowQueueLength": "1", "applicationID": "1"}, true, true, "applicationID, installationID and applicationKey must be given"},
+	{"missing installationID", map[string]string{"githubApiURL": "https://api.github.com", "runnerScope": ORG, "owner": "ownername", "repos": "reponame,otherrepo", "labels": "golang", "targetWorkflowQueueLength": "1", "applicationID": "1"}, true, true, "error parsing installationID: no installationID given"},
 	// missing applicationID
-	{"missing applicationID", map[string]string{"githubApiURL": "https://api.github.com", "runnerScope": ORG, "owner": "ownername", "repos": "reponame,otherrepo", "labels": "golang", "targetWorkflowQueueLength": "1", "installationID": "1"}, true, true, "applicationID, installationID and applicationKey must be given"},
+	{"missing applicationID", map[string]string{"githubApiURL": "https://api.github.com", "runnerScope": ORG, "owner": "ownername", "repos": "reponame,otherrepo", "labels": "golang", "targetWorkflowQueueLength": "1", "installationID": "1"}, true, true, "error parsing applicationID: no applicationID given"},
 	// all good
-	{"missing applicationKey", map[string]string{"githubApiURL": "https://api.github.com", "runnerScope": ORG, "owner": "ownername", "repos": "reponame,otherrepo", "labels": "golang", "targetWorkflowQueueLength": "1", "applicationID": "1", "installationID": "1"}, true, true, "applicationID, installationID and applicationKey must be given"},
+	{"missing applicationKey", map[string]string{"githubApiURL": "https://api.github.com", "runnerScope": ORG, "owner": "ownername", "repos": "reponame,otherrepo", "labels": "golang", "targetWorkflowQueueLength": "1", "applicationID": "1", "installationID": "1"}, true, true, "no applicationKey given"},
+	{"missing runnerScope Env", map[string]string{"githubApiURL": "https://api.github.com", "owner": "ownername", "repos": "reponame,otherrepo", "labels": "golang", "targetWorkflowQueueLength": "1", "runnerScopeFromEnv": "EMPTY"}, true, true, "runnerScope EMPTY env variable value is empty"},
+	{"missing owner Env", map[string]string{"githubApiURL": "https://api.github.com", "runnerScope": ORG, "repos": "reponame,otherrepo", "labels": "golang", "targetWorkflowQueueLength": "1", "ownerFromEnv": "EMPTY"}, true, true, "owner EMPTY env variable value is empty"},
+	{"wrong applicationID", map[string]string{"githubApiURL": "https://api.github.com", "runnerScope": ORG, "owner": "ownername", "repos": "reponame,otherrepo", "labels": "golang", "targetWorkflowQueueLength": "1", "applicationID": "id", "installationID": "1"}, true, true, "error parsing applicationID: strconv.ParseInt: parsing \"id\": invalid syntax"},
+	{"wrong installationID", map[string]string{"githubApiURL": "https://api.github.com", "runnerScope": ORG, "owner": "ownername", "repos": "reponame,otherrepo", "labels": "golang", "targetWorkflowQueueLength": "1", "applicationID": "1", "installationID": "id"}, true, true, "error parsing installationID: strconv.ParseInt: parsing \"id\": invalid syntax"},
 }
 
 func TestGitHubRunnerParseMetadata(t *testing.T) {