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.

Python client for Mistral REST API. Includes python library for Mistral API and Command Line Interface (CLI) library.

First of all, clone the repo and go to the repo directory:

$ git clone https://opendev.org/openstack/python-mistralclient.git
$ cd python-mistralclient

Then just run:

$ pip install -e .

or:

$ pip install -r requirements.txt
$ python setup.py install

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>

To make sure Mistral client works, type:

$ mistral workbook-list

You can see the list of available commands typing:

$ mistral --help

• PyPi - package installation
• Launchpad project - release management
• Blueprints - feature specifications
• Bugs - issue tracking
• Source
• Specs
• How to Contribute