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gcaracuel
Asked: 2017-06-29 13:05:31 +0800 CST

How to use Ansibles wait_for module 'active_connection_states' param

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Starting in Ansible v2.3 there is a new parameter for wait_for module: active_connection_states which default value is: [u'ESTABLISHED', u'SYN_SENT', u'SYN_RECV', u'FIN_WAIT1', u'FIN_WAIT2', u'TIME_WAIT']

Now imagine I want to wait for connections only with state in: ['ESTABLISHED', 'SYN_SENT', 'SYN_RECV'] to ensure load balanced connection have been drain after request it using any of the load balancers Ansible modules.

Example:

- wait_for:
    host: 0.0.0.0
    port: 8080
    state: drained
    active_connection_states: {{ connection_states_to_wait_for | default("[u'ESTABLISHED', u'SYN_SENT', u'SYN_RECV']") }}

Error: `

`

Also tried default("[u'ESTABLISHED', u'SYN_SENT', u'SYN_RECV']") with same result.

Note I am trying to change module default behaviour but still using a variable to allow my plan or execution to wait for a different set of states, would be nice but not mandatory to use this ;)

How should I use this new param? I tried several approaches but none worked, and that's all I could found at the module documentation.

ansible

1 Answers

  1. Best Answer

    The parameter is supposed to be a list, not a string:

    vars:
  connection_states_to_wait_for:
    - ESTABLISHED
    - SYN_SENT
    - SYN_RECV

    And/or:

    active_connection_states: "{{ connection_states_to_wait_for | default(['ESTABLISHED', 'SYN_SENT', 'SYN_RECV']) }}"

    You also need to properly quote the parameter value, as it starts with { character.

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