PEM-7501: Loaded custom azure environment from file

Author: guyni

azure/scope/azure_secret_cloud.go

@@ -0,0 +1,28 @@
+package scope
+
+import (
+	"context"
+	"os"
+
+	"github.com/Azure/go-autorest/autorest/azure"
+	"sigs.k8s.io/cluster-api-provider-azure/util/tele"
+)
+
+const (
+	AzureEnvironentFileEnvName = "AZURE_ENVIRONMENT_FILE"
+	AzureSecretCloudName       = "AzureSecretCloud"
+)
+
+func init() {
+	_, log, done := tele.StartSpanWithLogger(context.Background(), "scope.AzureScope.init")
+	defer done()
+	path := os.Getenv(AzureEnvironentFileEnvName)
+	if path == "" {
+		return
+	}
+	if env, err := azure.EnvironmentFromFile(path); err == nil {
+		azure.SetEnvironment(AzureSecretCloudName, env)
+	} else {
+		log.Error(err, "reason", "failed to load Azure environment from file", "path", path)
+	}
+}