Commit 2216a7cd by Alain Takoudjou

monitor: update readme

1 parent f9daf1cf
......@@ -91,6 +91,25 @@ To learn how to write a promise in SlapOS, please read this document:
Writing a promise consists of defining a class called RunPromise which inherits from GenericPromise class and defining methods: anomaly(), sense() and test(). Python promises should be placed into the folder etc/plugin of the computer partition.
New promises should be placed into the folder etc/plugin, legacy promise are into the folder etc/promise. Legacy promises are bash or other executable promises script which does not use GenericPromise class.
You will use slapos.cookbook:promise.plugin to generate your promise script into `etc/plugin` directory. Add promise will look like this:
[promise-check-site]
recipe = slapos.cookbook:promise.plugin
eggs =
slapos.toolbox
output = ${directory:plugins}/promise-check-mysite-status.py
content =
from slapos.promise.plugin.check_site_state import RunPromise
config-site-url = ${publish:site-url}
config-connection-timeout = 20
config-foo = bar
mode = 600
Then you will have to add `promise-check-site` section to buildout parts, so it will be installed.
In your promise code, you will be able to call `self.getConfig('site-url')`, `self.getConfig('connection-timeout')` and `self.getConfig('foo')`. The
returned value is `None` if the config parameter is not set.
Slapgrid will run each promise every time a partition is processed (every minutes in theory), if the partition is up to date, slapgrid will only run promises anomaly check and save the result in a json file. Here is an exemple of promise result:
{"result": {"date": "2018-03-22T15:35:07", "failed": false, "message": "buildout is OK", "type": "Test Result"}, "path": "PARTITION_DIRECTORY/etc/plugin/buildout-slappart0-status.py", "name": "buildout-slappart0-status.py", "execution-time": 0.1, "title": "buildout-slappart0-status"}
......
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