Add tt check, logrotate, connect

doc/reference/tt_cli/check.rst

@@ -0,0 +1,34 @@
+Checking an application file
+============================
+
+..  code-block:: bash
+
+    tt check APP_FILE
+
+``tt check`` checks the specified Tarantool application file for syntax errors.
+
+Details
+-------
+
+``tt`` searches for ``APP_FILE`` inside the ``instances_available`` directory
+specified in the :ref:`tt configuration file <tt-config_file_app>`. ``APP_FILE`` can be:
+
+*   the name of an application file without the ``.lua`` extension.
+*   the name of a directory containing the ``init.lua`` file. In this case, ``init.lua`` is checked.
+
+
+Examples
+--------
+
+*   Check the syntax of the ``app.lua`` file from the ``instances_available`` directory:
+
+    ..  code-block:: bash
+
+        tt check app
+
+
+*   Check the syntax of the ``init.lua`` file from the ``instance1/`` directory inside ``instances_available``:
+
+    ..  code-block:: bash
+
+        tt check instance1

doc/reference/tt_cli/commands.rst

@@ -26,11 +26,11 @@ help for the given command.
             -   Generate completion for a specified shell
         *   -   :doc:`help <help>`
             -   Display help for ``tt`` or a specific command
-        *   -   ``logrotate``
-            -   :ref:`Rotate logs <admin-logs>`
-        *   -   ``check``
+        *   -   :doc:`logrotate <logrotate>`
+            -   Rotate instance logs
+        *   -   :doc:`check <check>`
             -   Check an application file for syntax errors
-        *   -   ``connect``
+        *   -   :doc:`connect <connect>`
             -   Connect to a Tarantool instance
         *   -   ``rocks``
             -   Use the LuaRocks package manager
@@ -49,3 +49,6 @@ help for the given command.
     version <version>
     completion <completion>
     help <help>
+    logrotate <logrotate>
+    check <check>
+    connect <connect>

doc/reference/tt_cli/connect.rst

@@ -0,0 +1,81 @@
+Connecting to a Tarantool instance
+==================================
+
+..  code-block:: bash
+
+    tt connect URI|INSTANCE_NAME [flags]
+
+
+``tt connect`` connects to a Tarantool instance by its URI or name specified
+during its startup (``tt start``).
+
+Flags
+-----
+
+..  container:: table
+
+    ..  list-table::
+        :widths: 30 70
+        :header-rows: 0
+
+        *   -   ``-u``
+
+                ``--username``
+            -   Username
+        *   -   ``-p``
+
+                ``--password``
+            -   Password
+        *   -   ``-f``
+
+                ``--file``
+            -   Connect and evaluate the script from a file.
+
+                ``-`` – read the script from stdin.
+
+Details
+-------
+
+To connect to an instance, ``tt`` typically needs its URI -- the host name or IP address
+and the port.
+
+You can also connect to instances in the same ``tt`` environment
+(that is, those that use the same :ref:`configuration file <tt-config_file>` and Tarantool installation)
+by their instance names.
+
+If authentication is required, specify the username and the password using the ``-u`` (``--username``)
+and ``-p`` (``--password``) options.
+
+By default, ``tt connect`` opens an interactive Tarantool console. Alternatively, you
+can open a connection to evaluate a Lua script from a file or stdin. To do this,
+pass the file path in the ``-f`` (``--file``) option or use ``-f -`` to take the script
+from stdin.
+
+
+Examples
+--------
+
+*   Connect to the ``app`` instance in the same environment:
+
+    ..  code-block:: bash
+
+        tt connect app
+
+*   Connect to the ``192.168.10.10`` host on port ``3301`` with authentication:
+
+    ..  code-block:: bash
+
+        tt connect 192.168.10.10:3301 -u myuser -p p4$$w0rD
+
+*   Connect to the ``app`` instance and evaluate the code from the ``test.lua`` file:
+
+    ..  code-block:: bash
+
+        tt connect app -f test.lua
+
+*   Connect to the ``app`` instance and evaluate the code from stdin:
+
+    ..  code-block:: bash
+
+        echo "function test() return 1 end" | tt connect app -f - # Create the test() function
+        echo "test()" | tt connect app -f -                       # Call this function

doc/reference/tt_cli/logrotate.rst

@@ -0,0 +1,18 @@
+Rotate instance logs
+====================
+
+..  code-block:: bash
+
+    tt logrotate INSTANCE
+
+``tt logrotate`` rotates logs of a specified Tarantool instance.
+Learn more about :ref:`rotating logs <admin-logs>`.
+
+Examples
+--------
+
+Rotate logs of the ``app`` instance:
+
+..  code-block:: bash
+
+    tt logrotate app

doc/reference/tt_cli/start.rst

@@ -7,16 +7,17 @@ Starting a Tarantool instance
 
     tt start INSTANCE
 
-``tt start`` starts the specified Tarantool :ref:`instance <admin-instance_file>`.
+``tt start`` starts a Tarantool instance from an application file.
 
 Details
 -------
 
-``INSTANCE`` is the name of an instance from the ``instances_available`` directory
-specified in the :ref:`tt configuration file <tt-config_file_app>`. This can be:
+The application file must be stored inside the ``instances_available``
+directory specified in the :ref:`tt configuration file <tt-config_file_app>`.
+The ``INSTANCE`` value can be:
 
-*   the name of an :ref:`instance file <admin-instance_file>` without the ``.lua`` extension.
-*   the name of a directory containing the ``init.lua`` file.
+*   the name of an application file without the ``.lua`` extension.
+*   the name of a directory containing the ``init.lua`` file. In this case, the instance is started from ``init.lua``.
 
 
 Examples