openstack
/
os-collect-config
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update readme.

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Tim Miller 2013-01-29 12:37:17 -08:00
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README.md
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@ -57,18 +57,13 @@ connection = mysql://{{keystone.database.user}}:{{keystone.database.password}@{{
Configuration requiring logic is expressed in executable templates. Configuration requiring logic is expressed in executable templates.
An executable template is a script which accepts parameters via environment variables or standard in, and writes a config file to standard out. An executable template is a script which accepts configuration as a json string on standard in, and writes a config file to standard out.
The script should exit non-zero if it encounters a problem, so that cornfig knows what's up.
The output of the script will be written to the path corresponding to the executable template's path in the template tree. The output of the script will be written to the path corresponding to the executable template's path in the template tree.
e.g.
```bash
#/bin/sh
echo "[sql]"
echo "connection = mysql://$keystone_database_user:$keystone_database_password@$keystone_database_user/keystone"
```
TODO: the script is passed the contents of the metadata file on stdin, so you can use a higher-level languages, too:
```ruby ```ruby
#!/usr/bin/env ruby #!/usr/bin/env ruby
require 'json' require 'json'