feature: error handling for cgroup (#1486)

* Error for cgroup mountpoint

Added handling of message: cgroup mountpoint does not exist.

* Case for error cgroup

Added case and case description for: Cgroup Mountpoint Does Not Exist

* Case for Runc

Added error handling for Runc, which does not work in cgroup v2.
Changed numbering of new errors.

* stdErr handling fot run_container

Enabling stdErr handling fot run_container.sh

* change for stdErr handling

* Another place to handle the error 211

Another place to handle the error: ServerRuncNotWorkOnCgroupsV2

* test_1

* test 2

* test 3

* Moving error handling

Moving error handling to the right place in the controller.

* Polishing

* Еext correction

Сorrection of description text.

client/core/controllers/serverController.cpp

@@ -439,15 +439,22 @@ ErrorCode ServerController::buildContainerWorker(const ServerCredentials &creden
         stdOut += data + "\n";
         return ErrorCode::NoError;
     };
+    auto cbReadStdErr = [&](const QString &data, libssh::Client &) {
+        stdOut += data + "\n";
+        return ErrorCode::NoError;
+    };
 
-    errorCode =
+    ErrorCode error =
             runScript(credentials,
                       replaceVars(amnezia::scriptData(SharedScriptType::build_container), genVarsForScript(credentials, container, config)),
-                      cbReadStdOut);
+                      cbReadStdOut, cbReadStdErr);
-    if (errorCode)
-        return errorCode;
     
-    return errorCode;
+    if (stdOut.contains("doesn't work on cgroups v2"))
+        return ErrorCode::ServerDockerOnCgroupsV2;
+    if (stdOut.contains("cgroup mountpoint does not exist"))
+        return ErrorCode::ServerCgroupMountpoint;
+
+    return error;
 }
 
 ErrorCode ServerController::runContainerWorker(const ServerCredentials &credentials, DockerContainer container, QJsonObject &config)

client/core/defs.h

@@ -58,6 +58,8 @@ namespace amnezia
         ServerUserDirectoryNotAccessible = 208,
         ServerUserNotAllowedInSudoers = 209,
         ServerUserPasswordRequired = 210,
+        ServerDockerOnCgroupsV2 = 211,
+        ServerCgroupMountpoint = 212,
 
         // Ssh connection errors
         SshRequestDeniedError = 300,

client/core/errorstrings.cpp

@@ -26,6 +26,8 @@ QString errorString(ErrorCode code) {
     case(ErrorCode::ServerUserDirectoryNotAccessible): errorMessage = QObject::tr("The server user's home directory is not accessible"); break;
     case(ErrorCode::ServerUserNotAllowedInSudoers): errorMessage = QObject::tr("Action not allowed in sudoers"); break;
     case(ErrorCode::ServerUserPasswordRequired): errorMessage = QObject::tr("The user's password is required"); break;
+    case(ErrorCode::ServerDockerOnCgroupsV2): errorMessage = QObject::tr("Docker error: runc doesn't work on cgroups v2"); break;
+    case(ErrorCode::ServerCgroupMountpoint): errorMessage = QObject::tr("Server error: cgroup mountpoint does not exist"); break;
 
     // Libssh errors
     case(ErrorCode::SshRequestDeniedError): errorMessage = QObject::tr("SSH request was denied"); break;