Add tt commands start, stop, status, restart

doc/reference/tt_cli/commands.rst

@@ -10,13 +10,13 @@ help for the given command.
         :widths: 30 70
         :header-rows: 0
 
-        *   -   ``start``
-            -   Start a Tarantool :ref:`instance <admin-instance_file>`
-        *   -   ``stop``
+        *   -   :doc:`start <start>`
+            -   Start a Tarantool instance
+        *   -   :doc:`stop <stop>`
             -   Stop a Tarantool instance
-        *   -   ``status``
+        *   -   :doc:`status <status>`
             -   Get the current status of a Tarantool instance
-        *   -   ``restart``
+        *   -   :doc:`restart <restart>`
             -   Restart a Tarantool instance
         *   -   ``version``
             -   Show the ``tt`` version information
@@ -35,4 +35,12 @@ help for the given command.
         *   -   ``cat``
             -   Print the contents of ``.snap`` or ``.xlog`` files into stdout
         *   -   ``play``
-            -   Play the contents of ``.snap`` or ``.xlog`` files to another Tarantool instance
+            -   Play the contents of ``.snap`` or ``.xlog`` files to another Tarantool instance
+
+..  toctree::
+    :hidden:
+
+    start <start>
+    stop <stop>
+    status <status>
+    restart <restart>

doc/reference/tt_cli/configuration.rst

@@ -36,6 +36,8 @@ modules section
 * ``directory`` -- the directory where external modules are stored.
 .. // TODO: add link to external modules doc page when it's ready
 
+.. _tt-config_file_app:
+
 app section
 ~~~~~~~~~~~
 

doc/reference/tt_cli/restart.rst

@@ -0,0 +1,20 @@
+Restarting a Tarantool instance
+===============================
+
+..  code-block:: bash
+
+    tt restart INSTANCE
+
+``tt restart`` restarts the specified running Tarantool instance.
+A ``tt restart`` call is equivalent to consecutive calls of
+:doc:`tt stop <stop>` and :doc:`tt start <start>`.
+
+Examples
+--------
+
+Restart the ``app`` instance:
+
+..  code-block:: bash
+
+    tt restart app
+

doc/reference/tt_cli/start.rst

@@ -0,0 +1,36 @@
+.. _tt-start:
+
+Starting a Tarantool instance
+=============================
+
+..  code-block:: bash
+
+    tt start INSTANCE
+
+``tt start`` starts the specified Tarantool :ref:`instance <admin-instance_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 name of an :ref:`instance file <admin-instance_file>` without the ``.lua`` extension.
+*   the name of a directory containing the ``init.lua`` file.
+
+
+Examples
+--------
+
+*   Start the ``app.lua`` instance from the ``instances_available`` directory:
+
+    ..  code-block:: bash
+
+        tt start app
+
+
+*   Start the ``init.lua`` instance from the ``instance1/`` directory inside ``instances_available``:
+
+    ..  code-block:: bash
+
+        tt start instance1

doc/reference/tt_cli/status.rst

@@ -0,0 +1,17 @@
+Checking instance status
+========================
+
+..  code-block:: bash
+
+    tt status INSTANCE
+
+``tt status`` prints the current status of the specified Tarantool instance.
+
+Examples
+--------
+
+Check the status of the ``app`` instance:
+
+..  code-block:: bash
+
+    tt status app

doc/reference/tt_cli/stop.rst

@@ -0,0 +1,19 @@
+.. _tt-stop:
+
+Stopping a Tarantool instance
+=============================
+
+..  code-block:: bash
+
+    tt stop INSTANCE
+
+``tt stop`` stops the specified running Tarantool instance.
+
+Examples
+--------
+
+Stop the ``app`` instance:
+
+..  code-block:: bash
+
+    tt stop app