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Manage modjk workers
====================
Send commands to a :strong:`modjk` load balancer via the peer system.
This module can be used with the :ref:`prereq <requisites-prereq>`
requisite to remove/add the worker from the load balancer before
deploying/restarting service.
Mandatory Settings:
- The minion needs to have permission to publish the :strong:`modjk.*`
functions (see :ref:`here <peer>` for information on configuring
peer publishing permissions)
- The modjk load balancer must be configured as stated in the :strong:`modjk`
execution module :mod:`documentation <salt.modules.modjk>`
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Check if we have peer access ?
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Send a command to the modjk loadbalancer
The minion need to be able to publish the commands to the load balancer
cmd:
worker_stop - won't get any traffic from the lbn
worker_activate - activate the worker
worker_disable - will get traffic only for current sessions
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Check if the worker is in `activation` state in the targeted load balancers
The function will return the following dictionary:
result - False if no server returned from the published command
errors - list of servers that couldn't find the worker
wrong_state - list of servers that the worker was in the wrong state
(not activation)
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Wrapper function for the stop/disable/activate functions
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.. versionchanged:: 2017.7.0
The ``expr_form`` argument has been renamed to ``tgt_type``, earlier
releases must use ``expr_form``.
Stop the named worker from the lbn load balancers at the targeted minions
The worker won't get any traffic from the lbn
Example:
.. code-block:: yaml
disable-before-deploy:
modjk_worker.stop:
- name: {{ grains['id'] }}
- lbn: application
- target: 'roles:balancer'
- tgt_type: grain
u worker_stop( R! ( R R R
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.. versionchanged:: 2017.7.0
The ``expr_form`` argument has been renamed to ``tgt_type``, earlier
releases must use ``expr_form``.
Activate the named worker from the lbn load balancers at the targeted
minions
Example:
.. code-block:: yaml
disable-before-deploy:
modjk_worker.activate:
- name: {{ grains['id'] }}
- lbn: application
- target: 'roles:balancer'
- tgt_type: grain
u worker_activate( R! ( R R R
R R ( ( s< /usr/lib/python2.7/site-packages/salt/states/modjk_worker.pyt activate� s c C@ s t | | | d | | � S( u8
.. versionchanged:: 2017.7.0
The ``expr_form`` argument has been renamed to ``tgt_type``, earlier
releases must use ``expr_form``.
Disable the named worker from the lbn load balancers at the targeted
minions. The worker will get traffic only for current sessions and won't
get new ones.
Example:
.. code-block:: yaml
disable-before-deploy:
modjk_worker.disable:
- name: {{ grains['id'] }}
- lbn: application
- target: 'roles:balancer'
- tgt_type: grain
u worker_disable( R! ( R R R
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