Add WAL file for database and log instance deployment failures

OTSSignsOrchestrator.Core/Configuration/AppConstants.cs

@@ -8,12 +8,34 @@ public static class AppConstants
     public const string AdminRole = "Admin";
     public const string ViewerRole = "Viewer";
 
+    // ── Global Docker secret names ──────────────────────────────────────────
+
     /// <summary>Docker secret name for the global SMTP password.</summary>
     public const string GlobalSmtpSecretName = "global_smtp_password";
 
-    /// <summary>Build a per-customer MySQL password secret name.</summary>
-    public static string CustomerMysqlSecretName(string customerName)
-        => $"{SanitizeName(customerName)}_mysql_password";
+    /// <summary>Docker secret name for the shared MySQL host address.</summary>
+    public const string GlobalMysqlHostSecretName = "global_mysql_host";
+
+    /// <summary>Docker secret name for the shared MySQL port.</summary>
+    public const string GlobalMysqlPortSecretName = "global_mysql_port";
+
+    // ── Per-instance Docker secret name builders ────────────────────────────
+
+    /// <summary>Build a per-instance MySQL password secret name from the 3-letter abbreviation.</summary>
+    public static string CustomerMysqlPasswordSecretName(string abbrev)
+        => $"{abbrev}-cms-db-password";
+
+    /// <summary>Build a per-instance MySQL username secret name from the 3-letter abbreviation.</summary>
+    public static string CustomerMysqlUserSecretName(string abbrev)
+        => $"{abbrev}-cms-db-user";
+
+    /// <summary>Returns all per-instance MySQL secret names for a given abbreviation.</summary>
+    public static string[] AllCustomerMysqlSecretNames(string abbrev)
+        => new[]
+        {
+            CustomerMysqlPasswordSecretName(abbrev),
+            CustomerMysqlUserSecretName(abbrev),
+        };
 
     /// <summary>Sanitize a customer name for use in Docker/secret names.</summary>
     public static string SanitizeName(string name)