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The deploychef package has been adapted to implement the
run-time functionality required by decentralized openstackchef
class.
It does this by executing a script (deploychef) which instruct chef-solo
to recreate configuration files from all template files placed
at
/opt/deploychef/cookbooks/openstack/templates/default
by openstackchef class at build-time.
The deploychef init script run-level is lower than run-postinsts
script, which runs all openstack post-install scripts at first boot.
The deploychef script makes a call to run-chefsolo script,
which then creates openstack configuration files from all template
files mentioned above as directed by a recipe file.
This enables us to reconfigure an openstack image on first-boot,
thereby, updating the image with environment variables like IP address.
Like the template files above, there is a list of all default
variables used by the services in an openstack installation.
These variables, like the templates files above are created by
the openstackchef class and saved to a file under deploychef
directory at:
/opt/deploychef/cookbooks/openstack/attributes/default.rb
Whenever it's desired to reconfigure an openstack deployment
with an updated value of any of the variables in the attributes file
above, the script file run-deploychef should be executed to
reconfigure the stack as shown below.
cd /opt/deploychef
./run-deploychef
Signed-off-by: Mustapha Lansana <Mustapha.Lansana@windriver.com>
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Mustapha Lansana