@ -129,8 +129,9 @@ s.parentNode.insertBefore(ga, s);
class="dropdown-toggle">Page< / a >
class="dropdown-toggle">Page< / a >
< span class = "localtoc" > < ul >
< span class = "localtoc" > < ul >
< li > < a class = "reference internal" href = "#" > The Inventory File, Patterns, and Groups< / a > < ul > < li > < a class = "reference internal" href = "#" > The Inventory File, Patterns, and Groups< / a > < ul >
< li > < a class = "reference internal" href = "# inventory-file-format"> Inventory File Format< / a > < / li > < li > < a class = "reference internal" href = "# baisc- inventory-file-format"> Baisc Inventory File Format< / a > < / li >
< li > < a class = "reference internal" href = "#selecting-targets" > Selecting Targets< / a > < / li > < li > < a class = "reference internal" href = "#selecting-targets" > Selecting Targets< / a > < / li >
< li > < a class = "reference internal" href = "#advanced-inventory-file-format" > Advanced Inventory File Format< / a > < / li >
< / ul > < / ul >
< / li > < / li >
< / ul > < / ul >
@ -160,8 +161,8 @@ s.parentNode.insertBefore(ga, s);
< p > Ansible works against multiple systems in your infrastructure at the< p > Ansible works against multiple systems in your infrastructure at the
same time. It does this by selecting portions of systems listed in
same time. It does this by selecting portions of systems listed in
Ansible’ s inventory file, which defaults to /etc/ansible/hosts.< / p >
Ansible’ s inventory file, which defaults to /etc/ansible/hosts.< / p >
< div class = "section" id = " inventory-file-format"> < div class = "section" id = " baisc- inventory-file-format">
< span id = "inventoryformat" > < / span > < h2 > Inventory File Format< a class = "headerlink" href = "# inventory-file-format" title = "Permalink to this headline" > ¶< / a > < / h2 > < span id = "inventoryformat" > < / span > < h2 > Baisc Inventory File Format< a class = "headerlink" href = "# baisc- inventory-file-format" title = "Permalink to this headline" > ¶< / a > < / h2 >
< p > The format for /etc/ansible/hosts looks like this:< / p > < p > The format for /etc/ansible/hosts looks like this:< / p >
< div class = "highlight-python" > < div class = "highlight" > < pre > < span class = "n" > mail< / span > < span class = "o" > .< / span > < span class = "n" > example< / span > < span class = "o" > .< / span > < span class = "n" > com< / span > < div class = "highlight-python" > < div class = "highlight" > < pre > < span class = "n" > mail< / span > < span class = "o" > .< / span > < span class = "n" > example< / span > < span class = "o" > .< / span > < span class = "n" > com< / span >
@ -216,7 +217,51 @@ wildcards:</p>
< p class = "first admonition-title" > Note< / p > < p class = "first admonition-title" > Note< / p >
< p class = "last" > It is not possible to target a host not in the inventory file. This is a safety feature.< / p > < p class = "last" > It is not possible to target a host not in the inventory file. This is a safety feature.< / p >
< / div > < / div >
< p > Easy enough. Now see < a class = "reference internal" href = "examples.html" > < em > Command Line Examples< / em > < / a > and then < a class = "reference internal" href = "playbooks.html" > < em > Playbooks< / em > < / a > for how to do things to selected hosts.< / p > < p > Easy enough. See < a class = "reference internal" href = "examples.html" > < em > Command Line Examples< / em > < / a > and then < a class = "reference internal" href = "playbooks.html" > < em > Playbooks< / em > < / a > for how to do things to selected hosts.< / p >
< / div >
< div class = "section" id = "advanced-inventory-file-format" >
< h2 > Advanced Inventory File Format< a class = "headerlink" href = "#advanced-inventory-file-format" title = "Permalink to this headline" > ¶< / a > < / h2 >
< p > (This features requires the integration branch of Ansible, soon to be release 0.3)< / p >
< p > Once you read about playbooks you’ ll quickly see how useful it will be to assign particular variables
to particular hosts and groups of hosts. While the default INI-style host format doesn’ t allow this,
switching to the YAML inventory format can add some compelling capabilities. Just replace your INI
style file with a YAML one.:< / p >
< div class = "highlight-python" > < pre > ---
# some ungrouped hosts, either use the short string form or the "host: " prefix
- host: jupiter
- mars
# variables can be assigned like this...
- host: saturn
vars:
- moon: titan
# groups can also set variables to all hosts in the group
# here are a bunch of hosts using a non-standard SSH port
# and also defining a variable 'ntpserver'
- group: greek
hosts:
- zeus
- hera
- poseidon
vars:
- ansible_ssh_port: 3000
- ntp_server: olympus.example.com
# individual hosts can still set variables inside of groups too
# so you aren't limited to just group variables and host variables.
- group: norse
hosts:
- host: thor
vars:
- hammer: True
- odin
- loki
vars:
- asdf: 1234< / pre >
< / div >
< p > Tip: Be sure to start your YAML file with the YAML record designator “ — ” .< / p >
< div class = "admonition-see-also admonition seealso" > < div class = "admonition-see-also admonition seealso" >
< p class = "first admonition-title" > See also< / p > < p class = "first admonition-title" > See also< / p >
< dl class = "last docutils" > < dl class = "last docutils" >
@ -240,7 +285,7 @@ wildcards:</p>
< p class = "pull-right" > < a href = "#" > Back to top< / a > < / p >
< p class = "pull-right" > < a href = "#" > Back to top< / a > < / p >
< p >
< p >
© Copyright 2012 Michael DeHaan.< br / >
© Copyright 2012 Michael DeHaan.< br / >
Last updated on Apr 16 , 2012.< br / >
Last updated on Apr 17 , 2012.< br / >
Created using < a href = "http://sphinx.pocoo.org/" > Sphinx< / a > 1.0.8.< br / >
Created using < a href = "http://sphinx.pocoo.org/" > Sphinx< / a > 1.0.8.< br / >
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< / p >
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< / div >
Michael DeHaan
14 years ago