=============================
EII Configuration Management
=============================

etcd
=====

EII uses etcd (https://etcd.io/) for configuration management. etcd acts as a distributed key-value store for distributed systems. EII applications will contact etcd on startup and read their configurations as set by the user using the provisioning step/etcd UI. Because etcd is distributed, applications can receive their configuration on any node in the etcd cluster, regardless of where they might be deployed. 

.. include:: ../IEdgeInsights/common/libs/ConfigMgr/configmgr-.rst

.. include:: ../IEdgeInsights/EtcdUI/etcd-ui-service.rst

.. figure:: image/fig_6_3_2.png
        :scale: 80%
        :align: center 

Select **etcdkeeper** directory

Tool to Generate Configuration Management UI Service
====================================================

By default, after the user provision EII on the edge devices, the configMgr UI service will follow the default configuration on the **eii_config.json**. Below is the example on changing configuration on ConfigMgr UI and how to save the data back to json format. 

#. Browse the ConfigMgr UI Service as mention at EII Configuration Management Web UI Service Section.

    .. figure:: image/fig_6_4.png
        :scale: 100%
        :align: center 

#. Perform the changes, below example of changing the filter parameter to using **dummy** filter instead of using the default filter.  

#. For capturing the data back from ETCD Cluster to Json file, run below command
    
    $  cd [WORK_DIR]/IEdgeInsights/build/provision/
    
    $  ./etcd_capture.sh

#.	
  Below is the example of  **[WORK_DIR]/IEdgeInsights/build/provision**  before running the script.                                                                                                

    .. figure:: image/fig_6_4_1.png
      :scale: 100%
      :align: center

#.	
  Below is the example of **[WORK_DIR]/IEdgeInsights/build/provision** after running the script, additional one file of etcd_capture_data.json
    
    .. figure:: image/fig_6_4_2.png
      :scale: 100%
      :align: center 

#. 
  Below is the comparison between the original eii_config.json and the updated etcd_capture_data.json file.

    .. figure:: image/fig_6_4_3.png
        :scale: 100%
        :align: center

.. include:: ../IEdgeInsights/adding-new-eii-service-so-it-gets-picked-up-by-builder.rst

.. include:: ../IEdgeInsights/common/libs/ConfigMgr/configmgr-.rst

.. include:: ../IEdgeInsights/common/libs/ConfigMgr/installation.rst

.. include:: ../IEdgeInsights/common/libs/ConfigMgr/install-configmgr-with-python-bindings-go-bindings-examples-test-suits-and-debug-buil.rst

.. include:: ../IEdgeInsights/common/libs/ConfigMgr/interfaces.rst

.. include:: ../IEdgeInsights/common/libs/ConfigMgr/overriding-of-type-and-endpoint.rst

.. include:: ../IEdgeInsights/common/libs/ConfigMgr/broker-usecase.rst

.. include:: ../IEdgeInsights/common/libs/ConfigMgr/zmq-tcp-protocol-usecase.rst

.. include:: ../IEdgeInsights/common/libs/ConfigMgr/zmq-ipc-protocol-usecase.rst

.. include:: ../IEdgeInsights/common/libs/ConfigMgr/running-examples.rst

.. include:: ../IEdgeInsights/common/libs/ConfigMgr/running-unit-tests.rst

.. include:: ./api_config.rst