OpenStack configure file comparator.
Project description
Overview
Whenever you have to upgrade your OpenStack clusters, you have to rewrite your config files like nova.conf, cinder.conf, neutron.conf, etc.
Although oslo.config.generator helps you generate new config files automatically, there is no feature to migrate existed config data to newly generated config.
This program deals with the tedious task that compares the old config to new config line by line, and updates the config value old config had.
Features
Check two OpenStack configuration files. It shows set of attributes which are categorized to 5 types. This distinction is based on the old config file and commented attributes which means to have default value does not appear.
Added Newly added attributes. Old config does not have these attributes.
Removed Removed attributes. Old config had but new config does not have.
Unchanged Unchanged attributes. Both of new and old config have.
Changed Changed attributes. Group or name is changed at new release.
Ambiguous Ambiguous attributes. These attributes are changed but cannot be categorized since the name is duplicated.
Upgrade new config file with new contents based on existed config file. It fills out the new config file with the old config data which belongs to Changed and Unchanged attributes. Note that Ambigouos attributes should be treated by manual.
Installation
pip3 install oslo.config.comparator
Usage
Check two OpenStack configuration files.
oslo-config-comparator check [FILE1] [FILE2] (-v)
FILE1 Base config file which has old data.
FILE2 New config file which generated by oslo-config-generator.
-v Show datails.
Upgrade new config file with new contents based on existed config file.
oslo-config-comparator upgrade [FILE1] [FILE2] (-o OUTPUT)
-o OUTPUT File to be written. Defaults to stdout.
Limitation
It only parses “key = value” formatted string, so if the config file has template engine syntax such as Jinja, ruby ERB, additional content surrounding the attributes must be written manually.
Licenses
MIT
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