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<div class="section" id="knife-search">
<h1>knife search<a class="headerlink" href="#knife-search" title="Permalink to this headline">¶</a></h1>
<p>Search indexes allow queries to be made for any type of data that is indexed by the Chef server, including data bags (and data bag items), environments, nodes, and roles. A defined query syntax is used to support search patterns like exact, wildcard, range, and fuzzy. A search is a full-text query that can be done from several locations, including from within a recipe, by using the <tt class="docutils literal"><span class="pre">search</span></tt> subcommand in knife, the <tt class="docutils literal"><span class="pre">search</span></tt> method in the Recipe DSL, and by using the <tt class="docutils literal"><span class="pre">/search</span></tt> or <tt class="docutils literal"><span class="pre">/search/INDEX</span></tt> endpoints in the Chef server API. The search engine is based on Apache Solr and is run from the Chef server.</p>
<p>The <strong>knife search</strong> subcommand is used run a search query for information that is indexed on a Chef server.</p>
<div class="section" id="syntax">
<h2>Syntax<a class="headerlink" href="#syntax" title="Permalink to this headline">¶</a></h2>
<p>This subcommand has the following syntax:</p>
<div class="highlight-bash"><div class="highlight"><pre><span class="nv">$ </span>knife search INDEX SEARCH_QUERY
</pre></div>
</div>
<p>where <tt class="docutils literal"><span class="pre">INDEX</span></tt> is one of <tt class="docutils literal"><span class="pre">client</span></tt>, <tt class="docutils literal"><span class="pre">environment</span></tt>, <tt class="docutils literal"><span class="pre">node</span></tt>, <tt class="docutils literal"><span class="pre">role</span></tt>, or the name of a data bag and <tt class="docutils literal"><span class="pre">SEARCH_QUERY</span></tt> is the search query syntax for the query that will be executed.</p>
<p><tt class="docutils literal"><span class="pre">INDEX</span></tt> is implied if omitted, and will default to <tt class="docutils literal"><span class="pre">node</span></tt>. For example:</p>
<div class="highlight-bash"><div class="highlight"><pre><span class="nv">$ </span>knife search <span class="s1">"*:*"</span> -i
</pre></div>
</div>
<p>will return something similar to:</p>
<div class="highlight-bash"><div class="highlight"><pre>8 items found
centos-62-dev
opensuse-1203
ubuntu-1304-dev
ubuntu-1304-orgtest
ubuntu-1204-ohai-test
ubuntu-1304-ifcfg-test
ohai-test
win2k8-dev
</pre></div>
</div>
<p>and is the same search as:</p>
<div class="highlight-bash"><div class="highlight"><pre>$ knife search node "*:*" -i
</pre></div>
</div>
<p>If the <tt class="docutils literal"><span class="pre">SEARCH_QUERY</span></tt> does not contain a colon character (<tt class="docutils literal"><span class="pre">:</span></tt>), then the default query pattern is <tt class="docutils literal"><span class="pre">tags:*#{@query}*</span> <span class="pre">OR</span> <span class="pre">roles:*#{@query}*</span> <span class="pre">OR</span> <span class="pre">fqdn:*#{@query}*</span> <span class="pre">OR</span> <span class="pre">addresses:*#{@query}*</span></tt>, which means the following two search queries are effectively the same:</p>
<div class="highlight-bash"><div class="highlight"><pre><span class="nv">$ </span>knife search ubuntu
</pre></div>
</div>
<p>or:</p>
<div class="highlight-bash"><div class="highlight"><pre><span class="nv">$ </span>knife search node <span class="s2">"tags:*ubuntu* OR roles:*ubuntu* OR fqdn:*ubuntu* (etc.)"</span>
</pre></div>
</div>
</div>
<div class="section" id="options">
<h2>Options<a class="headerlink" href="#options" title="Permalink to this headline">¶</a></h2>
<div class="admonition note">
<p class="first admonition-title">Note</p>
<p class="last">Review the list of <a class="reference internal" href="knife_common_options.html"><em>common options</em></a> available to this (and all) knife subcommands and plugins.</p>
</div>
<p>This sub-command has the following options:</p>
<dl class="docutils">
<dt><tt class="docutils literal"><span class="pre">-a</span> <span class="pre">ATTR</span></tt>, <tt class="docutils literal"><span class="pre">--attribute</span> <span class="pre">ATTR</span></tt></dt>
<dd>The attribute (or attributes) to show.</dd>
<dt><tt class="docutils literal"><span class="pre">-b</span> <span class="pre">ROW</span></tt>, <tt class="docutils literal"><span class="pre">--start</span> <span class="pre">ROW</span></tt></dt>
<dd>The row at which return results will begin.</dd>
<dt><tt class="docutils literal"><span class="pre">-i</span></tt>, <tt class="docutils literal"><span class="pre">--id-only</span></tt></dt>
<dd>Use to show only matching object IDs.</dd>
<dt><tt class="docutils literal"><span class="pre">INDEX</span></tt></dt>
<dd>The name of the index to be queried: <tt class="docutils literal"><span class="pre">client</span></tt>, <tt class="docutils literal"><span class="pre">environment</span></tt>, <tt class="docutils literal"><span class="pre">node</span></tt>, <tt class="docutils literal"><span class="pre">role</span></tt>, or <tt class="docutils literal"><span class="pre">DATA_BAG_NAME</span></tt>. Default index: <tt class="docutils literal"><span class="pre">node</span></tt>.</dd>
<dt><tt class="docutils literal"><span class="pre">-l</span></tt>, <tt class="docutils literal"><span class="pre">--long</span></tt></dt>
<dd>Use to display all attributes in the output and to show the output as JSON.</dd>
<dt><tt class="docutils literal"><span class="pre">-m</span></tt>, <tt class="docutils literal"><span class="pre">--medium</span></tt></dt>
<dd>Use to display normal attributes in the output and to show the output as JSON.</dd>
<dt><tt class="docutils literal"><span class="pre">-o</span> <span class="pre">SORT</span></tt>, <tt class="docutils literal"><span class="pre">--sort</span> <span class="pre">SORT</span></tt></dt>
<dd>The order in which search results will be sorted.</dd>
<dt><tt class="docutils literal"><span class="pre">-q</span> <span class="pre">SEARCH_QUERY</span></tt>, <tt class="docutils literal"><span class="pre">--query</span> <span class="pre">SEARCH_QUERY</span></tt></dt>
<dd>Use to protect search queries that start with a hyphen (-). A <tt class="docutils literal"><span class="pre">-q</span></tt> query may be specified as an argument or an option, but not both.</dd>
<dt><tt class="docutils literal"><span class="pre">-r</span></tt>, <tt class="docutils literal"><span class="pre">--run-list</span></tt></dt>
<dd>Use to show only the run-list.</dd>
<dt><tt class="docutils literal"><span class="pre">-R</span> <span class="pre">INT</span></tt>, <tt class="docutils literal"><span class="pre">--rows</span> <span class="pre">INT</span></tt></dt>
<dd>The number of rows to be returned.</dd>
<dt><tt class="docutils literal"><span class="pre">SEARCH_QUERY</span></tt></dt>
<dd>The search query used to identify a a list of items on a Chef server. This option uses the same syntax as the <tt class="docutils literal"><span class="pre">search</span></tt> sub-command.</dd>
</dl>
</div>
<div class="section" id="examples">
<h2>Examples<a class="headerlink" href="#examples" title="Permalink to this headline">¶</a></h2>
<p>The following examples show how to use this knife subcommand:</p>
<p><strong>Search by platform ID</strong></p>
<p>To search for the IDs of all nodes running on the Amazon EC2 platform, enter:</p>
<div class="highlight-bash"><div class="highlight"><pre><span class="nv">$ </span>knife search node <span class="s1">"ec2:*"</span> -i
</pre></div>
</div>
<p>to return something like:</p>
<div class="highlight-bash"><div class="highlight"><pre>4 items found
ip-0A7CA19F.ec2.internal
ip-0A58CF8E.ec2.internal
ip-0A58E134.ec2.internal
ip-0A7CFFD5.ec2.internal
</pre></div>
</div>
<p><strong>Search by instance type</strong></p>
<p>To search for the instance type (flavor) of all nodes running on the Amazon EC2 platform, enter:</p>
<div class="highlight-bash"><div class="highlight"><pre><span class="nv">$ </span>knife search node <span class="s1">"ec2:*"</span> -a ec2.instance_type
</pre></div>
</div>
<p>to return something like:</p>
<div class="highlight-bash"><div class="highlight"><pre>4 items found
ec2.instance_type: m1.large
id: ip-0A7CA19F.ec2.internal
ec2.instance_type: m1.large
id: ip-0A58CF8E.ec2.internal
ec2.instance_type: m1.large
id: ip-0A58E134.ec2.internal
ec2.instance_type: m1.large
id: ip-0A7CFFD5.ec2.internal
</pre></div>
</div>
<p><strong>Search by node</strong></p>
<p>To search for all nodes running Ubuntu, enter:</p>
<div class="highlight-bash"><div class="highlight"><pre><span class="nv">$ </span>knife search node <span class="s1">"platform:ubuntu"</span>
</pre></div>
</div>
<p><strong>Search by node and environment</strong></p>
<p>To search for all nodes running CentOS in the production environment, enter:</p>
<div class="highlight-bash"><div class="highlight"><pre><span class="nv">$ </span>knife search node <span class="s1">"chef_environment:production AND platform:centos"</span>
</pre></div>
</div>
<p><strong>Search for nested attributes</strong></p>
<p>To find a nested attribute, use a pattern similar to the following:</p>
<div class="highlight-bash"><div class="highlight"><pre><span class="nv">$ </span>knife search node <query_to_run> -a <main_attribute>.<nested_attribute>
</pre></div>
</div>
<p><strong>Search for multiple attributes</strong></p>
<p>To build a search query to use more than one attribute, use an underscore (<tt class="docutils literal"><span class="pre">_</span></tt>) to separate each attribute. For example, the following query will search for all nodes running a specific version of Ruby:</p>
<div class="highlight-bash"><div class="highlight"><pre><span class="nv">$ </span>knife search node <span class="s2">"languages_ruby_version:1.9.3"</span>
</pre></div>
</div>
<p><strong>Search for nested attributes using a search query</strong></p>
<p>To build a search query that can find a nested attribute:</p>
<div class="highlight-bash"><div class="highlight"><pre><span class="nv">$ </span>knife search node name:<node_name> -a kernel.machine
</pre></div>
</div>
<p><strong>Use a test query</strong></p>
<p>To test a search query that will be used in a <strong>knife ssh</strong> command:</p>
<div class="highlight-bash"><div class="highlight"><pre><span class="nv">$ </span>knife search node <span class="s2">"role:web NOT name:web03"</span>
</pre></div>
</div>
<p>where the query in the previous example will search all servers that have the <tt class="docutils literal"><span class="pre">web</span></tt> role, but not on the server named <tt class="docutils literal"><span class="pre">web03</span></tt>.</p>
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