Commit Graph

330 Commits (e8fc9e490f5879ad5f52aeddb5d98596c8f0f6f6)

Author SHA1 Message Date
David Wilson 6c71c5bfef issue #369: disable reset_connection on Ansible<2.5.6
https://github.com/ansible/ansible/issues/27520
6 years ago
David Wilson c4aec22a33 issue #369: fix one more _reset() reference. 6 years ago
David Wilson 6107ebdc0d issue #396: fix compatibility with Connection._reset(). 6 years ago
David Wilson d280bba02b issue #369: fix KeyError during new context start.
Update _via_by_context earlier; fixes:

    Traceback (most recent call last):
      File "/Users/dmw/src/mitogen/mitogen/service.py", line 519, in _on_service_call
	return invoker.invoke(method_name, kwargs, msg)
      File "/Users/dmw/src/mitogen/mitogen/service.py", line 253, in invoke
	response = self._invoke(method_name, kwargs, msg)
      File "/Users/dmw/src/mitogen/mitogen/service.py", line 239, in _invoke
	ret = method(**kwargs)
      File "/Users/dmw/src/mitogen/ansible_mitogen/services.py", line 454, in get
	reraise(*result)
      File "/Users/dmw/src/mitogen/ansible_mitogen/services.py", line 412, in _wait_or_start
	response = self._connect(key, spec, via=via)
      File "/Users/dmw/src/mitogen/ansible_mitogen/services.py", line 363, in _connect
	self._update_lru(context, spec, via)
      File "/Users/dmw/src/mitogen/ansible_mitogen/services.py", line 266, in _update_lru
	self._update_lru_unlocked(new_context, spec, via)
      File "/Users/dmw/src/mitogen/ansible_mitogen/services.py", line 253, in _update_lru_unlocked
	if self._refs_by_context[context] == 0:
    KeyError: Context(1008, u'ssh.localhost.sudo.mitogen__user3')
6 years ago
David Wilson 54445470e2 issue #409: add missing path config variables to severa plugins
So every method can be redirected to a stub implementation.
6 years ago
David Wilson a68675af8b issue #409: fix reference error in kubectl.py. 6 years ago
David Wilson 05f9fb4dd8 issue #409: don't run kubectl test in <2.5. 6 years ago
David Wilson 18af1dfb51 ansible: kubectl_path argument appears in wrong connection method
Closes #409.
6 years ago
David Wilson 96f000c5ea ansible: tilde-expand SSH key before passing to SSH; closes #334. 6 years ago
David Wilson 536690760d issue #369: teach CallChain to reset the connection. 6 years ago
David Wilson 33412927f5 issue #369: refactor Connection to support reset()
Now the tests pass.
6 years ago
David Wilson 9b7c958e2e issue #369: refactor ContextService to support reset(). 6 years ago
David Wilson d0f5671887 ansible: split key_from_dict() out into free function. 6 years ago
David Wilson 0dc3f8accf ansible: fix another target.py format string. 6 years ago
David Wilson 7e04ee8af9 ansible: fix is_good_temp_dir() log format 6 years ago
David Wilson fba52a0edf issue #76: add API for ansible_mitogen to get route list
Earlier commit moved Stream.routes attribute into a private map
belonging to RouteMonitor, to make upgrades smoother. This adds a new
accessor method to RouteMonitor.
6 years ago
David Wilson 7fd9fb0014 issue #397: fix another case where stray tmpdirs can be left behind.
Newer Ansibles use atexit.register() to invoke cleanup, so we need to
run those registrations after each run.
6 years ago
David Wilson 1b17aa1d1a ansible: fix temp cleanup regression and add test; closes #397. 6 years ago
David Wilson 9d070541d9 ansible: try to create tempdir if missing.
Closes #358.
6 years ago
David Wilson 4c81eba599 Merge commit 'refs/pull/377/head' of github.com:dw/mitogen into dmw
(Pull #377)

Changes:
- additional_parameters -> extra_args
- Merge with kubectl changes from dmw branch
- Update docs
- Remove unused username class member
- Avoid mutable kubectl_args class member
- Use six.iteritems
6 years ago
David Wilson 7a00e1cc87 issue #360: missing locks around shutdown and LRU management. 6 years ago
David Wilson 498db57ec8 issue #360: ansible: missing lock around ContextService.put(). 6 years ago
David Wilson f8bf780e21 issue #362: Py3.x fixes. 6 years ago
David Wilson f8b6c774dd issue #362: cap max open files in children. 6 years ago
David Wilson 5521945bd2 ansible: temporary files take 5. 6 years ago
Yannig Perré 17548d1e49 [Enhancement] handle kubectl vars from Ansible connector.
This change allows the kubectl connector to support the same options as
Ansible's original connector.

The playbook sample comes with an example of a pod containing two containers
and checking that moving from one container to another, the version of Python
changes as expected.
6 years ago
Yannig Perré 6828926a36 Kubernetes connection support for mitogen. 6 years ago
David Wilson 638b196a45 ansible: fix put_file() for large temporary files.
Reverts 49736b3a, large file copies can't avoid the RTT.

The parent stack must be blocked while FileService progresses, as unlike
the small file path, it does not make a snapshot of the (possibly
temporary) file passed by the action plug-in. So we need to keep that
file alive while the service runs.

Add a new integration test and a new soak test to cover both.
6 years ago
David Wilson 9ff34afafe ansible: fix regression. 6 years ago
David Wilson 90f89f95fb ansible: fix exec_command() regression. 6 years ago
David Wilson 49736b3ae8 ansible: fix FileService call, and remove another roundtrip. 6 years ago
David Wilson e241081cae ansible: stop sharing target temp_dir in runner.
This cannot work with delegate_to, since delegate_to permits multiple
concurrent tasks to be executing on the same target.
6 years ago
David Wilson 43d9815f6d ansible: use CallChain everywhere.
This replaces the 'dump to logger' behaviour of pipelined calls from
before with a call chain that returns any exception on next synchronized
call.
6 years ago
David Wilson b254eb3399 ansible: fix non-action connection instantiation.
e.g. by synchronize module.
6 years ago
David Wilson 705d77a9be ansible: remove a bunch more aliasing from connection.py. 6 years ago
David Wilson 66142e7d75 ansible: fork isolated tasks from correct parent.
Closes #355.
6 years ago
David Wilson da8c6b45b0 ansible: remove task_vars aliasing from connection.py.
Crazy spam creep.
6 years ago
David Wilson 32751cd356 master: allow batching context switches for forward_modules()
-7 switches per task.
6 years ago
David Wilson 86942b6bf9 ansible: add explanatory exception
If disconnection occurs during a Connection.call(), return
AnsibleConnectionFailure.
6 years ago
David Wilson 3c6b72b452 ansible: gracefully return (and explain) ChannelError in ContextService.
When Ansible abnormally shuts down, the broker begins
force-disconnecting every context, including those for which connection
is currently in-progress.

When that happens, .call(init_child) throws ChannelError, and that needs
returned back to the worker, assuming the worker still even exists.

This solution is incomplete: with sick nodes, it's also possible the
worker died naturally, and so the worker should perhaps respond by
retrying the connection.

Previously, the unhandled ChannelError would spam the console when e.g.
fork() began returning EAGAIN.
6 years ago
David Wilson e647adc62e ansible: copy GIL change from linear2 branch.
Reduces runtime by 25% given 100 25ms SSH targets:

    ANSIBLE_STRATEGY=mitogen \
    MITOGEN_POOL_SIZE=100 \
    /usr/bin/time -l ansible k3-x100 -m shell -a hostname

Before:
           39.56 real        35.29 user        17.24 sys
      59600896  maximum resident set size
       1784252  page reclaims
          9016  messages sent
         10382  messages received
         18774  voluntary context switches
        770070  involuntary context switches

After:
           29.79 real        22.10 user        11.77 sys
      59281408  maximum resident set size
       1725268  page reclaims
          8582  messages sent
          9959  messages received
         14582  voluntary context switches
         75280  involuntary context switches
6 years ago
David Wilson 2647f73501 ansible: bump UNIX listener default backlog, and set it to match forks.
The connection multiplexer can expect to not be scheduled at least until
every $forks worker processes has attempted a connection, so the backlog
must be able to hold every worker.
6 years ago
David Wilson 8ab11f415f ansible: better support for diagnosing hangs
* Always enable the faulthandler module in the top-level process if it
  is available.
* Make MITOGEN_DUMP_THREAD_STACKS interval configurable, to better
  handle larger runs.
* Add docs subsection on diagnosing hangs.

Conflicts:
	ansible_mitogen/process.py
6 years ago
David Wilson 9792b8b54f ansible: use template-expanded delegate_to hostname in one more location. 6 years ago
David Wilson 90c2ed03d0 ansible: fix synchronize module
Broken by recent connection delegation fixes.
6 years ago
David Wilson 7458dfae85 ansible: avoid roundtrip for small file transfers.
Calls to connect.put_file() where the file is sufficiently small enough
to fit in a single RPC proceed without waiting for an RPC response. If
the write fails the target context will log an exception, and any
subsequent step depending on the written file will fail.

I verified every built-in action plugin for file transfer calls, and
they all depend on the transferred file in the following step, so this
should be safe.

Reduces template/copy actions to 2-RTT, loop-20-templates.yml runtime
reduced from 30 seconds to 10 seconds over a 250ms link compared to
v0.2.2, and from 123 seconds compared to vanilla with pipelining
enabled.
6 years ago
David Wilson 084c0ac065 ansible: avoid roundtrip in copy action due to fixup_perms2().
On top of existing temporary files work, this reduces the number of
roundtrips required for "copy" and "template" actions from 6 to 3.
6 years ago
David Wilson e18396d54d ansible: enable profiling by default!
Thankfully this never made it into a release
6 years ago
David Wilson bce4f59138 issue #345: disable IdentitiesOnly by default. 6 years ago
David Wilson 2e3d04bbb8 issue #342: forward _create_control_path() to SSH plugin.
network_cli connection type loads the "ssh" (mitogen_ssh) plugin and
expects a private method to exist.
6 years ago