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Add polling info to docs

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Michael DeHaan 2012-03-11 21:09:21 -04:00
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Subproject commit 209760f8f60ec24e3ccb176914965cd1e223abe4 Subproject commit 328f58479dc2d0ed5d22cbfeaac060c59eb901dc

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examples.html
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@ -269,16 +269,25 @@ directly from git and then restarting apache.</p>
<h2>Time Limited Background Operations<a class="headerlink" href="#time-limited-background-operations" title="Permalink to this headline"></a></h2> <h2>Time Limited Background Operations<a class="headerlink" href="#time-limited-background-operations" title="Permalink to this headline"></a></h2>
<p>Long running operations can be backgrounded, and their status can be <p>Long running operations can be backgrounded, and their status can be
checked on later. The same job ID is given to the same task on all checked on later. The same job ID is given to the same task on all
hosts, so you won&#8217;t lose track. Polling support is pending in the hosts, so you won&#8217;t lose track. If you kick hosts and don&#8217;t want
command line.:</p> to poll, it looks like this:</p>
<div class="highlight-python"><pre>ansible all -B 3600 -a "/usr/bin/long_running_operation --do-stuff" <div class="highlight-python"><pre>ansible all -B 3600 -a "/usr/bin/long_running_operation --do-stuff"</pre>
ansible all -n job_status -a jid=123456789</pre>
</div> </div>
<p>If you do decide you want to check on the job status later, you can:</p>
<div class="highlight-python"><pre>ansible all -n job_status -a jid=123456789</pre>
</div>
<p>Polling is built-in and looks like this:</p>
<div class="highlight-python"><pre>ansible all -B 3600 -P 60 -a "/usr/bin/long_running_operation --do-stuff"</pre>
</div>
<p>The above example says &#8220;run for 60 minutes max (60*60=3600), poll for status every 60 seconds&#8221;.
Poll mode is smart so all jobs will be started before polling will begin on any machine.
Be sure to use a high enough <cite>&#8211;forks</cite> value if you want to get all of your jobs started
very quickly.</p>
<p>Any module other than <a class="reference internal" href="modules.html#copy"><em>copy</em></a> or <a class="reference internal" href="modules.html#template"><em>template</em></a> can be <p>Any module other than <a class="reference internal" href="modules.html#copy"><em>copy</em></a> or <a class="reference internal" href="modules.html#template"><em>template</em></a> can be
backgrounded. Typically you&#8217;ll be backgrounding shell commands or backgrounded. Typically you&#8217;ll be backgrounding shell commands or
software upgrades only.</p> software upgrades only.</p>
<p>After the time limit (in seconds) runs out (<tt class="docutils literal"><span class="pre">-B</span></tt>), the process on <p>After the time limit (in seconds) runs out (<tt class="docutils literal"><span class="pre">-B</span></tt>), the process on
the remote nodes will be killed.</p> the remote nodes will be killed. Forcibly.</p>
</div> </div>
</div> </div>

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man/ansible-playbook.1.html
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<?xml version="1.0" encoding="UTF-8"?> <?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>ansible-playbook</title><link rel="stylesheet" href="./docbook-xsl.css" type="text/css" /><meta name="generator" content="DocBook XSL Stylesheets V1.75.2" /></head><body><div xml:lang="en" class="refentry" title="ansible-playbook" lang="en"><a id="id416216"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>ansible-playbook — run an ansible playbook</p></div><div class="refsynopsisdiv" title="Synopsis"><a id="_synopsis"></a><h2>Synopsis</h2><p>ansible-playbook &lt;filename.yml&gt; … [options]</p></div><div class="refsect1" title="DESCRIPTION"><a id="_description"></a><h2>DESCRIPTION</h2><p><span class="strong"><strong>Ansible playbooks</strong></span> are a configuration and multinode deployment system. Ansible-playbook is the tool <html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>ansible-playbook</title><link rel="stylesheet" href="./docbook-xsl.css" type="text/css" /><meta name="generator" content="DocBook XSL Stylesheets V1.75.2" /></head><body><div xml:lang="en" class="refentry" title="ansible-playbook" lang="en"><a id="id508410"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>ansible-playbook — run an ansible playbook</p></div><div class="refsynopsisdiv" title="Synopsis"><a id="_synopsis"></a><h2>Synopsis</h2><p>ansible-playbook &lt;filename.yml&gt; … [options]</p></div><div class="refsect1" title="DESCRIPTION"><a id="_description"></a><h2>DESCRIPTION</h2><p><span class="strong"><strong>Ansible playbooks</strong></span> are a configuration and multinode deployment system. Ansible-playbook is the tool
used to run them. See the project home page (link below) for more information.</p></div><div class="refsect1" title="ARGUMENTS"><a id="_arguments"></a><h2>ARGUMENTS</h2><div class="variablelist"><dl><dt><span class="term"> used to run them. See the project home page (link below) for more information.</p></div><div class="refsect1" title="ARGUMENTS"><a id="_arguments"></a><h2>ARGUMENTS</h2><div class="variablelist"><dl><dt><span class="term">
<span class="strong"><strong>filename.yml</strong></span> <span class="strong"><strong>filename.yml</strong></span>
</span></dt><dd> </span></dt><dd>
@ -22,5 +22,5 @@ Desired level of parallelism. Default 5.
</span></dt><dd> </span></dt><dd>
Prompt for the SSH password instead of assuming key-based authentication with ssh-agent. Prompt for the SSH password instead of assuming key-based authentication with ssh-agent.
</dd></dl></div></div><div class="refsect1" title="ENVIRONMENT"><a id="_environment"></a><h2>ENVIRONMENT</h2><p>The following environment variables may specified.</p><p>ANSIBLE_HOSTS  — Override the default ansible hosts file</p><p>ANSIBLE_LIBRARY — Override the default ansible module library path</p></div><div class="refsect1" title="AUTHOR"><a id="_author"></a><h2>AUTHOR</h2><p>Ansible was originally written by Michael DeHaan. See the AUTHORS file </dd></dl></div></div><div class="refsect1" title="ENVIRONMENT"><a id="_environment"></a><h2>ENVIRONMENT</h2><p>The following environment variables may specified.</p><p>ANSIBLE_HOSTS  — Override the default ansible hosts file</p><p>ANSIBLE_LIBRARY — Override the default ansible module library path</p></div><div class="refsect1" title="AUTHOR"><a id="_author"></a><h2>AUTHOR</h2><p>Ansible was originally written by Michael DeHaan. See the AUTHORS file
for a complete list of contributors.</p></div><div class="refsect1" title="COPYRIGHT"><a id="_copyright"></a><h2>COPYRIGHT</h2><p>Copyright © 2012, Michael DeHaan</p><p>Ansible is released under the terms of the GPLv3 License.</p></div><div class="refsect1" title="SEE ALSO"><a id="_see_also"></a><h2>SEE ALSO</h2><p>Extensive documentation as well as IRC and mailing list info for a complete list of contributors.</p></div><div class="refsect1" title="COPYRIGHT"><a id="_copyright"></a><h2>COPYRIGHT</h2><p>Copyright © 2012, Michael DeHaan</p><p>Ansible is released under the terms of the GPLv3 License.</p></div><div class="refsect1" title="SEE ALSO"><a id="_see_also"></a><h2>SEE ALSO</h2><p><span class="strong"><strong>ansible</strong></span>(1)</p><p>Extensive documentation as well as IRC and mailing list info
is available on the ansible home page: <a class="ulink" href="https://ansible.github.com/" target="_top">https://ansible.github.com/</a></p></div></div></body></html> is available on the ansible home page: <a class="ulink" href="https://ansible.github.com/" target="_top">https://ansible.github.com/</a></p></div></div></body></html>

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man/ansible.1.html
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@ -1,6 +1,6 @@
<?xml version="1.0" encoding="UTF-8"?> <?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>ansible</title><link rel="stylesheet" href="./docbook-xsl.css" type="text/css" /><meta name="generator" content="DocBook XSL Stylesheets V1.75.2" /></head><body><div xml:lang="en" class="refentry" title="ansible" lang="en"><a id="id560087"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>ansible — run a command somewhere else</p></div><div class="refsynopsisdiv" title="Synopsis"><a id="_synopsis"></a><h2>Synopsis</h2><p>ansible &lt;host-pattern&gt; [-f forks] [-m module_name] [-a args]</p></div><div class="refsect1" title="DESCRIPTION"><a id="_description"></a><h2>DESCRIPTION</h2><p><span class="strong"><strong>Ansible</strong></span> is an extra-simple tool/framework/API for doing 'remote things' over <html xmlns="http://www.w3.org/1999/xhtml"><head><meta http-equiv="Content-Type" content="text/html; charset=UTF-8" /><title>ansible</title><link rel="stylesheet" href="./docbook-xsl.css" type="text/css" /><meta name="generator" content="DocBook XSL Stylesheets V1.75.2" /></head><body><div xml:lang="en" class="refentry" title="ansible" lang="en"><a id="id400991"></a><div class="titlepage"></div><div class="refnamediv"><h2>Name</h2><p>ansible — run a command somewhere else</p></div><div class="refsynopsisdiv" title="Synopsis"><a id="_synopsis"></a><h2>Synopsis</h2><p>ansible &lt;host-pattern&gt; [-f forks] [-m module_name] [-a args]</p></div><div class="refsect1" title="DESCRIPTION"><a id="_description"></a><h2>DESCRIPTION</h2><p><span class="strong"><strong>Ansible</strong></span> is an extra-simple tool/framework/API for doing 'remote things' over
SSH.</p></div><div class="refsect1" title="ARGUMENTS"><a id="_arguments"></a><h2>ARGUMENTS</h2><div class="variablelist"><dl><dt><span class="term"> SSH.</p></div><div class="refsect1" title="ARGUMENTS"><a id="_arguments"></a><h2>ARGUMENTS</h2><div class="variablelist"><dl><dt><span class="term">
<span class="strong"><strong>host-pattern</strong></span> <span class="strong"><strong>host-pattern</strong></span>
</span></dt><dd> </span></dt><dd>
@ -47,11 +47,15 @@ Connection timeout to use when trying to talk to hosts, in seconds.
</span></dt><dd> </span></dt><dd>
Runs commands in the background, killing the task after N seconds. Runs commands in the background, killing the task after N seconds.
</dd><dt><span class="term"> </dd><dt><span class="term">
<span class="strong"><strong>-P</strong></span>, <span class="strong"><strong>--poll</strong></span>
</span></dt><dd>
Poll a background job every (this many) seconds. Requires -B.
</dd><dt><span class="term">
<span class="strong"><strong>-u</strong></span>, <span class="strong"><strong>--remote-user</strong></span> <span class="strong"><strong>-u</strong></span>, <span class="strong"><strong>--remote-user</strong></span>
</span></dt><dd> </span></dt><dd>
Use this remote username instead of root Use this remote username instead of root
</dd></dl></div></div><div class="refsect1" title="INVENTORY"><a id="_inventory"></a><h2>INVENTORY</h2><p>Ansible stores the hosts it can potentially operate on in an inventory </dd></dl></div></div><div class="refsect1" title="INVENTORY"><a id="_inventory"></a><h2>INVENTORY</h2><p>Ansible stores the hosts it can potentially operate on in an inventory
file. The syntax is one host per line. Groups headers are allowed and file. The syntax is one host per line. Groups headers are allowed and
are included on their own line, enclosed in square brackets.</p></div><div class="refsect1" title="FILES"><a id="_files"></a><h2>FILES</h2><p>/etc/ansible/hosts — Default inventory file</p><p>/usr/share/ansible/ — Default module library</p></div><div class="refsect1" title="ENVIRONMENT"><a id="_environment"></a><h2>ENVIRONMENT</h2><p>The following environment variables may specified.</p><p>ANSIBLE_HOSTS  — Override the default ansible hosts file</p><p>ANSIBLE_LIBRARY — Override the default ansible module library path</p></div><div class="refsect1" title="AUTHOR"><a id="_author"></a><h2>AUTHOR</h2><p>Ansible was originally written by Michael DeHaan. See the AUTHORS file are included on their own line, enclosed in square brackets.</p></div><div class="refsect1" title="FILES"><a id="_files"></a><h2>FILES</h2><p>/etc/ansible/hosts — Default inventory file</p><p>/usr/share/ansible/ — Default module library</p></div><div class="refsect1" title="ENVIRONMENT"><a id="_environment"></a><h2>ENVIRONMENT</h2><p>The following environment variables may specified.</p><p>ANSIBLE_HOSTS  — Override the default ansible hosts file</p><p>ANSIBLE_LIBRARY — Override the default ansible module library path</p></div><div class="refsect1" title="AUTHOR"><a id="_author"></a><h2>AUTHOR</h2><p>Ansible was originally written by Michael DeHaan. See the AUTHORS file
for a complete list of contributors.</p></div><div class="refsect1" title="COPYRIGHT"><a id="_copyright"></a><h2>COPYRIGHT</h2><p>Copyright © 2012, Michael DeHaan</p><p>Ansible is released under the terms of the GPLv3 License.</p></div><div class="refsect1" title="SEE ALSO"><a id="_see_also"></a><h2>SEE ALSO</h2><p>Extensive documentation as well as IRC and mailing list info for a complete list of contributors.</p></div><div class="refsect1" title="COPYRIGHT"><a id="_copyright"></a><h2>COPYRIGHT</h2><p>Copyright © 2012, Michael DeHaan</p><p>Ansible is released under the terms of the GPLv3 License.</p></div><div class="refsect1" title="SEE ALSO"><a id="_see_also"></a><h2>SEE ALSO</h2><p><span class="strong"><strong>ansible-playbook</strong></span>(1)</p><p>Extensive documentation as well as IRC and mailing list info
is available on the ansible home page: <a class="ulink" href="https://ansible.github.com/" target="_top">https://ansible.github.com/</a></p></div></div></body></html> is available on the ansible home page: <a class="ulink" href="https://ansible.github.com/" target="_top">https://ansible.github.com/</a></p></div></div></body></html>

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rst/examples.rst
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@ -112,17 +112,30 @@ Time Limited Background Operations
Long running operations can be backgrounded, and their status can be Long running operations can be backgrounded, and their status can be
checked on later. The same job ID is given to the same task on all checked on later. The same job ID is given to the same task on all
hosts, so you won't lose track. Polling support is pending in the hosts, so you won't lose track. If you kick hosts and don't want
command line.:: to poll, it looks like this::
ansible all -B 3600 -a "/usr/bin/long_running_operation --do-stuff" ansible all -B 3600 -a "/usr/bin/long_running_operation --do-stuff"
If you do decide you want to check on the job status later, you can::
ansible all -n job_status -a jid=123456789 ansible all -n job_status -a jid=123456789
Polling is built-in and looks like this::
ansible all -B 3600 -P 60 -a "/usr/bin/long_running_operation --do-stuff"
The above example says "run for 60 minutes max (60*60=3600), poll for status every 60 seconds".
Poll mode is smart so all jobs will be started before polling will begin on any machine.
Be sure to use a high enough `--forks` value if you want to get all of your jobs started
very quickly.
Any module other than :ref:`copy` or :ref:`template` can be Any module other than :ref:`copy` or :ref:`template` can be
backgrounded. Typically you'll be backgrounding shell commands or backgrounded. Typically you'll be backgrounding shell commands or
software upgrades only. software upgrades only.
After the time limit (in seconds) runs out (``-B``), the process on After the time limit (in seconds) runs out (``-B``), the process on
the remote nodes will be killed. the remote nodes will be killed. Forcibly.

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