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261 lines
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261 lines
10 KiB
ReStructuredText
Glossary
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========
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.. glossary::
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Auto-Order
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The evaluation of states in the order that they are defined in a SLS
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file. *See also*: :ref:`ordering <ordering_auto_order>`.
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Bootstrap
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A stand-alone Salt project which can download and install a Salt master
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and/or a Salt minion onto a host. *See also*: `salt-bootstrap
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<https://github.com/saltstack/salt-bootstrap>`_.
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Compound Matcher
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A combination of many target definitions that can be combined with
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boolean operators. *See also*: :ref:`targeting <targeting-compound>`.
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EAuth
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Shorthand for 'external authentication'. A system for calling to a
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system outside of Salt in order to authenticate users and determine if
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they are allowed to issue particular commands to Salt. *See also*:
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:ref:`external auth<acl-eauth>`.
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Environment
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A directory tree containing state files which can be applied to
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minions. *See also*: :ref:`top file<states-top-environments>`.
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Execution Module
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A Python module that contains execution functions which directly
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perform various system-management tasks on a server. Salt ships with a
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number of execution modules but users can also write their own
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execution modules to perform specialized tasks. *See also*: :ref:`the
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list of execution modules <all-salt.modules>`.
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Execution Function
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A Python function inside an Execution Module that may take arguments
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and performs specific system-management tasks. *See also*: :ref:`the
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list of execution modules <all-salt.modules>`.
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External Job Cache
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An external data-store that can archive information about jobs that
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have been run. A default returner. *See also*:
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:conf_master:`ext_job_cache`, :ref:`the list of returners
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<all-salt.returners>`.
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External Pillar
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A module that accepts arbitrary arguments and returns a dictionary.
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The dictionary is automatically added to a pillar for a minion.
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Event
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A notice emitted onto an event bus. Events are often driven by requests
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for actions to occur on a minion or master and the results of those
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actions. *See also*: :ref:`Salt Reactor <reactor>`.
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File Server
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A local or remote location for storing both Salt-specific files such as
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top files or SLS files as well as files that can be distributed to
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minions, such as system configuration files. *See also*: :ref:`Salt's
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file server <file-server>`.
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Grain
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A key-value pair which contains a fact about a system, such as its
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hostname, network addresses. *See also*: :ref:`targeting with grains
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<targeting-grains>`.
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Halite
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The Salt GUI. *See also*: `Halite
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<https://github.com/saltstack/halite>`_.
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Jinja
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A templating language which allows variables and simple logic to be
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dynamically inserted into static text files when they are rendered.
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*See also*: :py:mod:`Salt's Jinja documentation
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<salt.renderers.jinja>`.
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Job
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The complete set of tasks to be performed by the execution of a Salt
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command are a single job. *See also*: :py:mod:`jobs runner
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<salt.runners.jobs>`.
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Job ID
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A unique identifier to represent a given :term:`job`.
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Highdata
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The data structure in a SLS file the represents a set of state
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declarations. *See also*: :ref:`state layers
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<state-layers-high-data>`.
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Highstate
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The collection of states to be applied to a system. *See also*:
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:ref:`state layers <state-layers-highstate>`.
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Low State
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The collection of processed states after requisites and order are
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evaluated. *See also*: :ref:`state layers <state-layers-low-state>`.
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Master
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A central Salt daemon which from which commands can be issued to
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listening minions.
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Masterless
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A minion which does not require a Salt master to operate. All
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configuration is local. *See also*: :conf_minion:`file_client`.
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Master Tops
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A system for the master that allows hooks into external systems to
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generate top file data.
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Mine
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A facility to collect arbitrary data from minions and store that data
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on the master. This data is then available to all other minions.
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[Sometimes referred to as Salt Mine.] *See also*: :ref:`Salt Mine
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<salt-mine>`.
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Minion
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A server running a Salt minion daemon which can listen to commands from
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a master and perform the requested tasks. Generally, minions are
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servers which are to be controlled using Salt.
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Minion ID
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A globally unique identifier for a minion. *See also*:
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:conf_minion:`id`.
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Multi-Master
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The ability for a minion to be actively connected to multiple Salt
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masters at the same time in high-availability environments.
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Node Group
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A pre-defined group of minions declared in the master configuration
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file. *See also*: :ref:`targeting <targeting-nodegroups>`.
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Outputter
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A formatter for defining the characteristics of output data from a Salt
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command. *See also*: :ref:`list of outputters <all-salt.output>`.
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Overstate
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A system by which a Master can issue function calls to minions in a
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deterministic order. *See also*: :ref:`overstate <states-overstate>`.
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Peer Communication
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The ability for minions to communicate directly with other minions
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instead of brokering commands through the Salt master. *See also*:
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:ref:`peer communication <peer>`.
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Pillar
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A simple key-value store for user-defined data to be made available to
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a minion. Often used to store and distribute sensitive data to minions.
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*See also*: :ref:`Pillar <salt-pillars>`, :ref:`list of Pillar
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modules <all-salt.pillars>`.
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Proxy Minion
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A minion which can control devices that are unable to run a Salt minion
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locally, such as routers and switches.
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PyDSL
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A Pythonic domain-specific-language used as a Salt renderer. PyDSL can
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be used in cases where adding pure Python into SLS files is beneficial.
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*See also*: :py:mod:`PyDSL <salt.renderers.pydsl>`.
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Reactor
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An interface for listening to events and defining actions that Salt
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should taken upon receipt of given events. *See also*: :ref:`Reactor
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<reactor>`.
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Render Pipe
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Allows SLS files to be rendered by multiple renderers, with each
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renderer receiving the output of the previous. *See also*:
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:ref:`composing renderers <renderers-composing>`.
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Renderer
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Responsible for translating a given data serialization format such as
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YAML or JSON into a Python data structure that can be consumed by Salt.
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*See also*: :ref:`list of renderers <all-salt.renderers>`.
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Returner
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Allows for the results of a Salt command to be sent to a given
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data-store such as a database or log file for archival. *See also*:
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:ref:`list of returners <all-salt.returners>`.
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Roster
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A flat-file list of target hosts. (Currently only used by salt-ssh.)
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Runner Module
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A module containing a set of runner functions. *See also*: :ref:`list
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of runner modules <all-salt.runners>`.
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Runner Function
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A function which is is called by the :command:`salt-run` command and
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executes on the master instead of on a minion. *See also*:
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:term:`Runner Module`.
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Salt Cloud
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A suite of tools used to create and deploy systems on many hosted cloud
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providers. *See also*: :ref:`salt-cloud <salt-cloud>`.
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Salt SSH
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A configuration management and remote orchestration system that does
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not require that any software besides SSH be installed on systems to be
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controlled.
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Salt Thin
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A subset of the normal Salt distribution that does not include any
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transport routines. A Salt Thin bundle can be dropped onto a host and
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used directly without any requirement that the host be connected to a
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network. Used by Salt SSH. *See also*: :py:mod:`thin runner
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<salt.runners.thin>`.
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Salt Virt
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Used to manage the creation and deployment of virtual machines onto a
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set of host machines. Often used to create and deploy private clouds.
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*See also*: :py:mod:`virt runner <salt.runners.virt>`.
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SLS Module
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Contains a set of :term:`state declarations <State Declaration>`.
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State Declaration
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A data structure which contains a unique ID and describes one or more
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states of a system such as ensuring that a package is installed or a
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user is defined. *See also*: :ref:`highstate structure
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<state-declaration>`.
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State Module
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A module which contains a set of state functions. *See also*:
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:ref:`list of state modules <all-salt.states>`.
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State Function
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A function contained inside a :term:`state module <State Module>` which
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can manages the application of a particular state to a system. State
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functions frequently call out to one or more :term:`execution modules
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<Execution Module>` to perform a given task.
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State Run
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The application of a set of states on a set of systems.
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State Compiler
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Translates :term:`highdata` into lowdata.
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Syndic
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A forwarder which can relay messages between tiered masters. **See
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also**: :ref:`Syndic <syndic>`.
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Target
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Minion(s) to which a given salt command will apply. *See also*:
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:ref:`targeting <targeting>`.
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Top File
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Determines which SLS files should be applied to various systems and
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organizes those groups of systems into environments. *See also*:
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:ref:`top file <states-top>`, :ref:`list of master top modules
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<all-salt.tops>`.
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Worker
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A master process which can send notices and receive replies from
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minions. *See also*: :conf_master:`worker_threads`.
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__virtual__
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A function in a module that is called on module load to determine
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whether or not the module should be available to a minion. This
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function commonly contains logic to determine if all requirements
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for a module are available, such as external libraries. |