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108 lines
3.3 KiB
ReStructuredText
Prompts
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=======
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When running a playbook, you may wish to prompt the user for certain input, and can
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do so with the 'vars_prompt' section.
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A common use for this might be for asking for sensitive data that you do not want to record.
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This has uses beyond security, for instance, you may use the same playbook for all
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software releases and would prompt for a particular release version
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in a push-script.
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Here is a most basic example::
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---
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- hosts: all
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remote_user: root
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vars:
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from: "camelot"
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vars_prompt:
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- name: "name"
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prompt: "what is your name?"
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- name: "quest"
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prompt: "what is your quest?"
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- name: "favcolor"
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prompt: "what is your favorite color?"
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.. note::
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Prompts for individual ``vars_prompt`` variables will be skipped for any variable that is already defined through the command line ``--extra-vars`` option, or when running from a non-interactive session (such as cron or Ansible Tower). See :ref:`passing_variables_on_the_command_line` in the /Variables/ chapter.
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If you have a variable that changes infrequently, it might make sense to
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provide a default value that can be overridden. This can be accomplished using
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the default argument::
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vars_prompt:
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- name: "release_version"
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prompt: "Product release version"
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default: "1.0"
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An alternative form of vars_prompt allows for hiding input from the user, and may later support
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some other options, but otherwise works equivalently::
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vars_prompt:
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- name: "some_password"
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prompt: "Enter password"
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private: yes
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- name: "release_version"
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prompt: "Product release version"
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private: no
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If `Passlib <https://passlib.readthedocs.io/en/stable/>`_ is installed, vars_prompt can also encrypt the
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entered value so you can use it, for instance, with the user module to define a password::
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vars_prompt:
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- name: "my_password2"
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prompt: "Enter password2"
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private: yes
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encrypt: "sha512_crypt"
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confirm: yes
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salt_size: 7
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You can use any crypt scheme supported by 'Passlib':
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- *des_crypt* - DES Crypt
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- *bsdi_crypt* - BSDi Crypt
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- *bigcrypt* - BigCrypt
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- *crypt16* - Crypt16
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- *md5_crypt* - MD5 Crypt
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- *bcrypt* - BCrypt
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- *sha1_crypt* - SHA-1 Crypt
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- *sun_md5_crypt* - Sun MD5 Crypt
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- *sha256_crypt* - SHA-256 Crypt
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- *sha512_crypt* - SHA-512 Crypt
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- *apr_md5_crypt* - Apache's MD5-Crypt variant
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- *phpass* - PHPass' Portable Hash
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- *pbkdf2_digest* - Generic PBKDF2 Hashes
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- *cta_pbkdf2_sha1* - Cryptacular's PBKDF2 hash
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- *dlitz_pbkdf2_sha1* - Dwayne Litzenberger's PBKDF2 hash
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- *scram* - SCRAM Hash
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- *bsd_nthash* - FreeBSD's MCF-compatible nthash encoding
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However, the only parameters accepted are 'salt' or 'salt_size'. You can use your own salt using
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'salt', or have one generated automatically using 'salt_size'. If nothing is specified, a salt
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of size 8 will be generated.
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.. seealso::
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:doc:`playbooks`
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An introduction to playbooks
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:doc:`playbooks_conditionals`
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Conditional statements in playbooks
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:doc:`playbooks_variables`
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All about variables
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`User Mailing List <http://groups.google.com/group/ansible-devel>`_
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Have a question? Stop by the google group!
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`irc.freenode.net <http://irc.freenode.net>`_
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#ansible IRC chat channel
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