this was taken out in an effort to default to the user's shell but creates issues as this is not known ahead of time
and its painful to set executable and shell_type for all servers, it should only be needed for those that restrict the user
to specific shells and when /bin/sh is not available. raw and command may still bypass this by explicitly passing None.
fixes#13882
still conditional
This is because we pass arguments to non-newstyle modules via an
external file. If we pipeline, then the interpreter thinks it has to
run the arguments as the script instead of what is piped in via stdin.
* now module errors clearly state msg=MODULE FAILURE
* module's stdout and stderr go into module_stdout and module_stderr keys
which only appear during parsing failure
* invocation module_args are deleted from results provided by action
plugin as errors can keep us from overwriting and then disclosing info that
was meant to be kept hidden due to no_log
* fixed invocation module_args set by basic.py as it was creating different
keys as the invocation in action plugin base.
* results now merge
* Changed parse_addresses to throw exceptions instead of passing None
* Switched callers to trap and pass through the original values.
* Added very verbose notice
* Look at deprecating this and possibly validate at plugin instead
fixes#13608
This was added in 1.9 and 2.0 tried to copy, but since it cannot
obey no_log restrictions I commented it out. I did not remove as
it is still very useful for module invocation debugging.
Environments were not being templated individually, so a variable environment
value was causing the exception regarding dicts to be hit. Also, environments
as inherited were coming through with the tasks listed first, followed by the
parents, so they were being merged backwards. Reversing the list of environments
fixed this.
We were logging the command to be executed many times, which made debug
logs very hard to read. Now we do it only once.
Also makes the logged ssh command line cut-and-paste-able (the lack of
which has confused a number of people by now; the problem being that we
pass the command as a single argument to execve(), so it doesn't need an
extra level of quoting as it does when you try to run it by hand).
Pipelining is a *significant* performance benefit, because each task can
be completed with a single SSH connection (vs. one ssh connection at the
start to mkdir, plus one sftp and one ssh per task).
Pipelining is disabled by default in Ansible because it conflicts with
the use of sudo if 'Defaults requiretty' is set in /etc/sudoers (as it
is on Red Hat) and su (which always requires a tty).
We can (and already do) make sudo/su happy by using "ssh -t" to allocate
a tty, but then the python interpreter goes into interactive mode and is
unhappy with module source being written to its stdin, per the following
comment from connections/ssh.py:
# we can only use tty when we are not pipelining the modules.
# piping data into /usr/bin/python inside a tty automatically
# invokes the python interactive-mode but the modules are not
# compatible with the interactive-mode ("unexpected indent"
# mainly because of empty lines)
Instead of the (current) drastic solution of turning off pipelining when
we use a tty, we can instead use a tty but suppress the behaviour of the
Python interpreter to switch to interactive mode. The easiest way to do
this is to make its stdin *not* be a tty, e.g. with cat|python.
This works, but there's a problem: ssh will ignore -t if its input isn't
really a tty. So we could open a pseudo-tty and use that as ssh's stdin,
but if we then write Python source into it, it's all echoed back to us
(because we're a tty). So we have to use -tt to force tty allocation; in
that case, however, ssh puts the tty into "raw" mode (~ICANON), so there
is no good way for the process on the other end to detect EOF on stdin.
So if we do:
echo -e "print('hello world')\n"|ssh -tt someho.st "cat|python"
…it hangs forever, because cat keeps on reading input even after we've
closed our pipe into ssh's stdin. We can get around this by writing a
special __EOF__ marker after writing in_data, and doing this:
echo -e "print('hello world')\n__EOF__\n"|ssh -tt someho.st "sed -ne '/__EOF__/q' -e p|python"
This works fine, but in fact I use a clever python one-liner by mgedmin
to achieve the same effect without depending on sed (at the expense of a
much longer command line, alas; Python really isn't one-liner-friendly).
We also enable pipelining by default as a consequence.
* Fix the task_vars parameter to not default to a mutable type (dict)
* Implement invocation in the base class's run() method have each action
module call the run() method's implemention in the base class.
* Return values from the action plugins' run() method takes the return
value from the base class run() method into account so that invocation
makes its way to the output.
Fixes#12869
Revert "Remove auto-added invocation return value as it is not used by v2 and could leak sensitive data."
This reverts commit 6ce6b20268.
Remove the note that invocation was removed as we've now restored it.
Revert "keyword not in ubuntu 14.04"
This reverts commit 5c01622457.
Revert "remove invocation keyword check"
This reverts commit 5177cb3f74.
SSH pipelining can be a significant performance improvement, but it will
not work if sudoers is configured to requiretty. With this change, one
could have pipelining enabled in ansible.cfg, but use sudo to turn off
requiretty in a separate play (or task) where pipelining is disabled:
- hosts: foo
vars:
ansible_pipelining: no
tasks:
- lineinfile: dest=/etc/sudoers line='Defaults requiretty' state=absent
sudo_user: root
(Note that sudoers has a complicated syntax, so the above lineinfile
invocation may be too simplistic for production use; but the point is
that a separate play can do something to disable requiretty.)
* allow global no_log setting, no need to set at play or task level, but can be overriden by them
* allow turning off syslog only on task execution from target host (manage_syslog), overlaps with no_log functionality
* created log function for task modules to use, now we can remove all syslog references, will use systemd journal if present
* added debug flag to modules, so they can make it call new log function conditionally
* added debug logging in module's run_command
There doesn't appear to be anything that actually uses tmp_path in the
connection plugins so we don't need to pass that in to exec_command.
That change also means that we don't need to pass tmp_path around in
many places in the action plugins any more. there may be more cleanup
that can be done there as well (the action plugin's public run() method
takes tmp as a keyword arg but that may not be necessary).
As a sideeffect of this patch, some potential problems with chmod and
the patch, assemble, copy, and template modules has been fixed (those
modules called _remote_chmod() with the wrong order for their
parameters. Removing the tmp parameter fixed them.)
This fixes a failing unit test.
In actual use (which is still quite far), I'm not sure if bytes ->
unicode conversion should be done here (in which case the code will fail
with an AttributeError: 'bytes' object has no attribute 'readlines'), or
inside self._connection.exec_command() (in which case my change is
correct).
This adds a parse_address(pattern) utility function that returns
(host,port), and uses it wherever where we accept IPv4 and IPv6
addresses and hostnames (or host patterns): the inventory parser
the the add_host action plugin.
It also introduces a more extensive set of unit tests that supersedes
the old add_host unit tests (which didn't actually test add_host, but
only the parsing function).
Replace .iteritems() with six.iteritems() everywhere except in
module_utils (because there's no 'six' on the remote host). And except
in lib/ansible/galaxy/data/metadata_template.j2, because I'm not sure
six is available there.
dbd755e0 previously assigned the value to self._templar.environment.searchpath,
which is incorrect - it needs to be assigned to the environment.loader.searchpath
value instead.
Fixes#11931
This information was earlier shown only with ANSIBLE_DEBUG, but it's
extremely useful in a user context, especially with module invocations
with deeply nested args like the ec2_vpc/ec2 modules.
Closes#11680
* Better comments
* Reorganize code so related settings are close to each other
* Add ::1 to the "localhost" patterns we look for
* Make the dest_port parameter override the ansible_ssh_port setting
* Fix dest_port (wasn't being set)
* more complete detection of delegate_to
* Fix set_remote_user (wasn't being looked for in parameters)
* Instead of removing mode here, have the ansible module accept it
(better documents the parameters doing it htat way)
James Cammarata
Brian Coca
Toshio Kuratomi
Brian Coca
Matt Martz
Michael Scherer
Abhijit Menon-Sen
Yannig Perré
Luca Berruti
nitzmahone
Sebastien Couture
Toshio Kuratomi
Joern Heissler
Rene Moser
Jason O'Donnell
Petr Mifek
Marius Gedminas
Florian Apolloner
Axel Delmas
gptech
Chris Church
Gaurav Jain
Karl Brown
Thomas Quenolle
Ryan Petrello