On Python3 and Python2 use pickle slightly differently so we need to be
explicit about some things.
If pickles could be shared between python2 and python3, as in
ansible-connection and the pickle cache, we need to specify the protocol
to use when dumping and the encoding to use for byte strings when
loading.
The dumping protocol needs to be no higher than 2 as python-2 only
supports up to protocol 2. The encoding should usually be 'bytes' so
that python2 str type becomes python3 bytes type. However, doing this
means that we must make sure that the objects being serialized properly
make their strings into text strings except when they're supposed to be
bytes. If strings are improperly byte strings, they may cause
tracebacks on the receiving end
Fix for persistent connection plugin on Python3. Note that fixes are also needed to each terminal plugin. This PR only fixes the ios terminal (as proof that this approach is workable.) Future PRs can address the other terminal types.
* On Python3, pickle needs to work with byte strings, not text strings.
* Set the pickle protocol version to 0 because we're using a pty to feed data to the connection plugin. A pty can't have control characters. So we have to send ascii only. That means
only using protocol=0 for pickling the data.
* ansible-connection isn't being used with py3 in the bug but it needs
several changes to work with python3.
* In python3, closing the pty too early causes no data to be sent. So
leave stdin open until after we finish with the ansible-connection
process.
* Fix typo using traceback.format_exc()
* Cleanup unnecessary StringIO, BytesIO, and to_bytes calls
* Modify the network_cli and terminal plugins for py3 compat. Lots of mixing of text and byte strings that needs to be straightened out to be compatible with python3
* Documentation for the bytes<=>text strategy for terminal plugins
* Update unittests for more bytes-oriented internals
Fixes#24355
When ansible-connection forks the process, it changed the working
directory to /. This patch will prevent ansible-connection from
changing the working directory in the forked process.
This will now print a log message that displays how long the ssh
connection took to establish to the remote device. If the connection
established time is exceed it will also print a message to the log file
that the connection attempts have exceed.
Updates default connection retries to 30
fixes#22319
Some downstreams want to ship multiple versions of ansible (Either to
have multiple ansible versions or to have a version that uses python3.X
and a version that uses python2.x). When they do this, they append
a version number to the cli scripts in /usr/bin. This patch will remove
those version numbers before trying to find the ansible python module to
import for this commandline
* replaces persistent connection digest with _create_control_path()
* adds _ansible_socket to _legal_inputs in basic.py
* adds connection_user to play_context
* maps remote_user to connection_user when connection is local
* maps ansible_socket in task_vars to module_args _ansible_socket if exists
adds more logging to handle display being called from plugins. Also
rearranges some of the exception handling to better catch exceptions and
log to local syslog
* sends the serialized play_context into an already established connection
* hooks the alarm_handler() method in the connection plugin if it exists
* added configuration options for connect interval and retries
* adds syslog logging to Server() instance
This update will send the updated play_context back into an already
established connection in case privilege escalation / descalation activities
need to be performed. This change will also hook the alarm_handler() method
in the connection instance (if available) and call it in case of a
sigalarm raised.
This update adds two new configuration options
* PERSISTENT_CONNECT_INTERVAL - time to wait in between connection attempts
* PERSISTENT_CONNECT_RETRIES - max number of retries
* Fixes to the controller text model
* Change command line args to text type
* Make display replace undecodable bytes with replacement chars. This
is only a problem on pyhton3 where surrogates can enter into the msg
but sys.stdout doesn't know how to handle them.
* Remove a deprecated playbook syntax in unicode.yml
* Fix up run_cmd to change its parameters to byte string at appropriate times.
We couldn't copy to_unicode, to_bytes, to_str into module_utils because
of licensing. So once created it we had two sets of functions that did
the same things but had different implementations. To remedy that, this
change removes the ansible.utils.unicode versions of those functions.
This makes our recursive, ast.parse performance measures as fast as
pre-ziploader baseline.
Since this unittest isn't testing that the returned module data is
correct we don't need to worry about os.rename not having any module
data. Should devise a separate test for the module and caching code
porting @dominis 's ansible-shell tool from 1.9 and integrating it into ansible
added verbosity control
made more resilitent to several errors
added highlight color, to configurable colors
more resilient on exception and interruptions
prompt coloring, goes red and changes to # when using become = true and root
become setting is now explicit and not a toggle
Ganesh Nalawade