Merge 'Allow skipping rqfile by undefining it in config (setting rqfile: None)'

Allow skipping rqfile by undefining it in config (setting rqfile: None)

doc/source/usage.rst

@@ -7,15 +7,100 @@ However, you need to :doc:`configure </configuration>` it first.
 
 Basically, the ``timmy.py`` is a simple wrapper that launches ``cli.py``.
 
-The script accepts the following parameters:
+Basic parameters:
 
-* ``--config`` the configuration file location, default is *config.yaml*
-* ``-o``, ``--dest-file`` the location for output archives, default is */tmp/archives/general.tar.bz2*
-* ``-e``, ``--extended`` execute commands once by roles
-* ``-c``, ``--cluster`` ability to provide the cluster ID
-* ``-d``, ``--debug`` debugging mode, return more debugging info
-* ``-v``, ``--verbose`` verbose mode
-* ``--only-logs`` collect only logs from nodes (without commands)
-* ``-l``, ``--logs`` collect log files from nodes
+* ``--only-logs`` only collect logs (skip files, filelists, commands and scripts)
+* ``-l``, ``--logs`` also collect logs (logs are not collected by default due to their size)
+* ``-C <command>`` enables ``shell mode``\*, Bash command (string) to execute on nodes. Using multiple ``-C`` statements will give the same result as using one with several commands separated by ``;`` (traditional Shell syntax), but for each ``-C`` statement a new SSH connection is established
+* ``-S <script>`` enables ``shell mode``, name of the Bash script file (you need to put it into ``scripts`` folder inside a path specified by ``rqdir`` config parameter, defaults to ``rq``) to execute on nodes
+* ``-P <file/path> <dest>`` enables ``shell mode``, upload local data to nodes (wildcards supported). You must specify 2 values for each ``-P`` switch.
+* ``-G <file/path>`` enables ``shell mode``, download (collect) data from nodes
+* ``-e``, ``--env`` filter by environment ID
+* ``-R``, ``--role`` filter by role
+* ``--config`` use custom configuration file to overwrite defaults. See ``config.yaml`` as an example
+* ``-j``, ``--nodes-json`` use json file instead of polling Fuel (to generate json file use ``fuel node --json``) - speeds up initialization
+* ``-o``, ``--dest-file`` the name/path for output archive, default is ``general.tar.gz`` and put into ``/tmp/timmy/archives``.
+* ``-v``, ``--verbose`` verbose(INFO) logging
+* ``-d``, ``--debug`` debug(DEBUG) logging
+
+Shell mode - rqfile (``rq.yaml`` by default) is skipped, Fuel node is skipped, outputs of commands (specified with ``-C`` options) and scripts (specified with ``-S``) are printed on screen.
+
+=====
+Examples
+=====
+
+* ``timmy -C 'uptime; free -m'`` - check uptime and memory on all nodes
+* ``timmy -G /etc/nova/nova.conf`` - get nova.conf from all nodes
+* ``timmy -R controller -P package.deb '' -C 'dpkg -i package.deb' -C 'rm package.deb' -C 'dpkg -l | grep [p]ackage'`` - push a package to all nodes, install it, remove the file and check that it is installed
+* ``timmy -с myconf.yaml`` - use a custom config file and run according to it
+
+=====
+Using custom configuration file
+=====
+
+If you want to do a set of actions on the nodes and you do not want to write a long command line (or you want to use options only available in config), you may want to set up config file instead. An example config structure would be:
+
+::
+
+  rqdir: './pacemaker-debug' # a folder which should contain any filelists and/or scripts if they are defined later, should contain folders 'filelists' and/or 'scripts' 
+  rqfile: None # explicitly undefine rqfile to skip default filelists and scripts
+  hard_filter:
+    roles: # only execute on Fuel and controllers
+      - fuel
+      - controller 
+  cmds: # some commands to run on all nodes (after filtering). cmds syntax is {name: value, ...}. cmds are executed in alphabetical order of names.
+    01-my-first-command: 'uptime'
+    02-disk-check: 'df -h'
+    and-also-ram: 'free -m'
+  logs:
+    exclude: '.*' # exclude all logs by default
+  by_roles:
+    controller:
+      scripts: # I use script here to not overwrite cmds we have already defined for all nodes earlier
+        - pacemaker-debug.sh # the name of the file inside 'scripts' folder inside 'rqdir' path, which will be executed (by default) on all nodes
+      files:
+        - '/etc/coros*' # get all files from /etc/coros* wildcard path
+    fuel:
+      logs:
+        include: 'crmd|lrmd|corosync|pacemaker' # only get logs which names match (re.search is used) this regexp
+
+Then you would run ``timmy -l -c my-config.yaml`` to execute timmy with such config.
+
+Instead of setting all structure in a config file you can move actions (cmds, files, filelists, scripts, logs) to an rqfile, and specify ``rqfile`` path in config (although with this example the config-way is more compact). ``rqfile`` structure is a bit different:
+
+::
+
+  cmds: # top-level elements are node parameters, __default will be assigned to all nodes
+    __default:
+      - 01-my-first-command: 'uptime'
+      - 02-disk-check: 'df -h'
+      - and-also-ram: 'free -m'
+  scripts:
+    by_roles: # all non "__default" keys should be matches, "by_<parameter>"
+      controller: 
+        - pacemaker-debug.sh
+  files:
+    by_roles:
+      controller:
+        - '/etc/coros*'
+  logs:
+    by_roles:
+      fuel:
+        include: 'crmd|lrmd|corosync|pacemaker'
+    __default:
+        exclude: '.*'
+
+Then the config should look like:
+
+::
+
+  rqdir: './pacemaker-debug'
+  rqfile: './pacemaker-rq.yaml'
+  hard_filter:
+    roles:
+      - fuel
+      - controller
+
+And you run ``timmy -l -c my-config.yaml``.
 
 Back to :doc:`Index </index>`.

setup.py

@@ -9,7 +9,7 @@ rqfiles = [(os.path.join(dtm, root), [os.path.join(root, f) for f in files])
 rqfiles.append((os.path.join(dtm, 'configs'), ['config.yaml', 'rq.yaml']))
 
 setup(name='timmy',
-      version='1.0',
+      version='1.1',
       author="Aleksandr Dobdin",
       author_email='dobdin@gmail.com',
       license='Apache2',

timmy/nodes.py

@@ -352,7 +352,8 @@ class NodeManager(object):
                 logging.error(('NodeManager __init__: directory %s does not'
                                'exist') % self.rqdir)
                 sys.exit(1)
-            self.import_rq()
+            if self.conf['rqfile']:
+                self.import_rq()
         self.fuel_init()
         if nodes_json:
             try: