3f0255f416
Currently some mistral errors are masked in the cli with non helpful messages like: ERROR (app) Bad Request (HTTP 400) That is due to ResourceManagers not using the standard underscore methods defined in the base class. Those underscore methods have the appropriate try catch to parse the unfriendly keystoneauth errors into more cli friendly errors like: ERROR (app) Invalid input [name=std.echo, class=mistral.actions.std_actions.EchoAction, missing=['output']] This adds the try catch to the non standard methods and change the action_execution.create to use the standard method Change-Id: I2573cb093e97ce378fc1d255d8b38e2ce818c8e5 Closes-bug: #1754093
Team and repository tags
Mistral
Mistral is a workflow service. Most business processes consist of multiple distinct interconnected steps that need to be executed in a particular order in a distributed environment. A user can describe such a process as a set of tasks and their transitions. After that, it is possible to upload such a description to Mistral, which will take care of state management, correct execution order, parallelism, synchronization and high availability.
Mistral also provides flexible task scheduling so that it can run a process according to a specified schedule (for example, every Sunday at 4.00pm) instead of running it immediately. In Mistral terminology such a set of tasks and relations between them is called a workflow.
Mistral client
Python client for Mistral REST API. Includes python library for Mistral API and Command Line Interface (CLI) library.
Installation
First of all, clone the repo and go to the repo directory:
$ git clone git://git.openstack.org/openstack/python-mistralclient.git
$ cd python-mistralclientThen just run:
$ pip install -e .or:
$ pip install -r requirements.txt
$ python setup.py installRunning Mistral client
If Mistral authentication is enabled, provide the information about OpenStack auth to environment variables. Type:
$ export OS_AUTH_URL=http://<Keystone_host>:5000/v2.0
$ export OS_USERNAME=admin
$ export OS_TENANT_NAME=tenant
$ export OS_PASSWORD=secret
$ export OS_MISTRAL_URL=http://<Mistral host>:8989/v2 (optional, by
default URL=http://localhost:8989/v2)and in the case that you are authenticating against keystone over https:
$ export OS_CACERT=<path_to_ca_cert>
Note
In client, we can use both Keystone auth versions - v2.0 and v3. But server supports only v3.*
To make sure Mistral client works, type:
$ mistral workbook-listYou can see the list of available commands typing:
$ mistral --helpUseful Links
- PyPi - package installation
- Launchpad project - release management
- Blueprints - feature specifications
- Bugs - issue tracking
- Source
- Specs
- How to Contribute