sequence – generate a list based on a number sequence — Ansible Documentation

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# sequence – generate a list based on a number sequence

- Synopsis
- Parameters
- Examples
- Return Values
- Status

## Synopsis

- generates a sequence of items. You can specify a start value, an end value, an optional “stride” value that specifies the number of steps to increment the sequence, and an optional printf-style format string.
- Arguments can be specified as key=value pair strings or as a shortcut form of the arguments string is also accepted: [start-]end[/stride][:format].
- Numerical values can be specified in decimal, hexadecimal (0x3f8) or octal (0600).
- Starting at version 1.9.2, negative strides are allowed.
- Generated items are strings. Use Jinja2 filters to convert items to preferred type, e.g. `{{ 1 + item|int }}`.
- See also Jinja2 `range` filter as an alternative.

## Parameters

Parameter | Choices/Defaults | Configuration | Comments
--- | --- | --- | ---
count number | Default: 0 |  | number of elements in the sequence, this is not to be used with end
end number | Default: 0 |  | number at which to end the sequence, dont use this with count
format - |  |  | return a string with the generated number formatted in
start number | Default: 0 |  | number at which to start the sequence
stride number |  |  | increments between sequence numbers, the default is 1 unless the end is less than the start, then it is -1.

## Examples

    - name: create some test users
      user:
        name: "{{ item }}"
        state: present
        groups: "evens"
      with_sequence: start=0 end=32 format=testuser%02x

    - name: create a series of directories with even numbers for some reason
      file:
        dest: "/var/stuff/{{ item }}"
        state: directory
      with_sequence: start=4 end=16 stride=2

    - name: a simpler way to use the sequence plugin create 4 groups
      group:
        name: "group{{ item }}"
        state: present
      with_sequence: count=4

    - name: the final countdown
      debug: msg={{item}} seconds to detonation
      with_sequence: end=0 start=10

## Return Values

Common return values are documented here, the following are the fields unique to this lookup:

Key | Returned | Description
--- | --- | ---
_list list |  | A list containing generated sequence of items

## Status

- This lookup is not guaranteed to have a backwards compatible interface. [preview]
- This lookup is maintained by the Ansible Community. [community]

### Authors

- Jayson Vantuyl <jayson@aggressive.ly>

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