NAME

       puppet-lookup - Interactive Hiera lookup

SYNOPSIS

       Does Hiera lookups from the command line.

       Since this command needs access to your Hiera data, make sure to run it on a node that has
       a copy of that data. This usually means logging into a  Puppet  Server  node  and  running
       'puppet lookup' with sudo.

       The most common version of this command is:

       'puppet lookup KEY --node NAME --environment ENV --explain'

USAGE

       puppet    lookup    [--help]    [--type   TYPESTRING]   [--merge   first|unique|hash|deep]
       [--knock-out-prefix    PREFIX-STRING]     [--sort-merged-arrays]     [--merge-hash-arrays]
       [--explain]  [--environment  ENV]  [--default  VALUE]  [--node  NODE-NAME]  [--facts FILE]
       [--compile] [--render-as s|json|yaml|binary|msgpack] keys

DESCRIPTION

       The lookup command is a CLI for Puppet's 'lookup()' function. It searches your Hiera  data
       and  returns  a value for the requested lookup key, so you can test and explore your data.
       It is a modern replacement for the 'hiera' command.

       Hiera usually relies on a node's facts to locate the relevant data  sources.  By  default,
       'puppet  lookup' uses facts from the node you run the command on, but you can get data for
       any other node with the '--node NAME' option. If possible, the lookup command will use the
       requested node's real stored facts from PuppetDB; if PuppetDB isn't configured or you want
       to provide arbitrary fact values, you can pass alternate facts as a JSON or YAML file with
       '--facts FILE'.

       If  you're debugging your Hiera data and want to see where values are coming from, use the
       '--explain' option.

       If '--explain' isn't specified, lookup exits with 0 if a value was found and 1  otherwise.
       With '--explain', lookup always exits with 0 unless there is a major error.

       You  can provide multiple lookup keys to this command, but it only returns a value for the
       first found key, omitting the rest.

       For   more   details   about   how   Hiera   works,   see   the    Hiera    documentation:
       https://puppet.com/docs/puppet/latest/hiera_intro.html

OPTIONS

       ○   --help: Print this help message.

       ○   --explain  Explain  the  details  of  how the lookup was performed and where the final
           value came from (or the reason no value was found).

       ○   --node NODE-NAME Specify which node to look up data for; defaults to  the  node  where
           the command is run. Since Hiera's purpose is to provide different values for different
           nodes (usually based on their facts), you'll usually want to use some specific  node's
           facts  to  explore  your  data.  If  the  node  where  you're  running this command is
           configured to talk to PuppetDB, the command will use the requested node's most  recent
           facts. Otherwise, you can override facts with the '--facts' option.

       ○   --facts  FILE  Specify  a .json or .yaml file of key => value mappings to override the
           facts for this lookup. Any facts not specified in this file  maintain  their  original
           value.

       ○   --environment  ENV  Like  with most Puppet commands, you can specify an environment on
           the command line. This is important for lookup because different environments can have
           different Hiera data.

       ○   --merge  first|unique|hash|deep:  Specify  the  merge  behavior,  overriding any merge
           behavior from the data's  lookup_options.  'first'  returns  the  first  value  found.
           'unique'  appends everything to a merged, deduplicated array. 'hash' performs a simple
           hash merge by overwriting keys of lower lookup priority. 'deep' performs a deep  merge
           on  values  of Array and Hash type. There are additional options that can be used with
           'deep'.

       ○   --knock-out-prefix PREFIX-STRING Can be used with the 'deep' merge strategy. Specifies
           a prefix to indicate a value should be removed from the final result.

       ○   --sort-merged-arrays  Can  be  used  with the 'deep' merge strategy. When this flag is
           used, all merged arrays are sorted.

       ○   --merge-hash-arrays Can be used with the 'deep' merge  strategy.  When  this  flag  is
           used, hashes WITHIN arrays are deep-merged with their counterparts by position.

       ○   --explain-options  Explain  whether a lookup_options hash affects this lookup, and how
           that hash was assembled. (lookup_options is how Hiera  configures  merge  behavior  in
           data.)

       ○   --default  VALUE  A value to return if Hiera can't find a value in data. For emulating
           calls to the 'lookup()' function that include a default.

       ○   --type TYPESTRING: Assert that the value has the specified type. For  emulating  calls
           to the 'lookup()' function that include a data type.

       ○   --compile  Perform  a  full catalog compilation prior to the lookup. If your hierarchy
           and data only use the $facts, $trusted, and $server_facts variables,  you  don't  need
           this  option;  however,  if your Hiera configuration uses arbitrary variables set by a
           Puppet manifest, you  might  need  this  option  to  get  accurate  data.  No  catalog
           compilation takes place unless this flag is given.

       ○   --render-as  s|json|yaml|binary|msgpack  Specify the output format of the results; "s"
           means plain text. The default when producing a value is  yaml  and  the  default  when
           producing an explanation is s.

EXAMPLE

       To look up 'key_name' using the Puppet Server node's facts: $ puppet lookup key_name

       To  look  up  'key_name'  with  agent.local's  facts:  $  puppet lookup --node agent.local
       key_name

       To get the first value found for  'key_name_one'  and  'key_name_two'  with  agent.local's
       facts  while  merging  values  and  knocking  out the prefix 'foo' while merging: $ puppet
       lookup --node agent.local --merge deep --knock-out-prefix foo key_name_one key_name_two

       To lookup 'key_name' with agent.local's facts, and return a  default  value  of  'bar'  if
       nothing was found: $ puppet lookup --node agent.local --default bar key_name

       To  see an explanation of how the value for 'key_name' would be found, using agent.local's
       facts: $ puppet lookup --node agent.local --explain key_name

COPYRIGHT

       Copyright (c) 2015 Puppet Inc., LLC Licensed under the Apache 2.0 License