CloudFlow

A workflow visualization tool for OpenStack Mistral (https://github.com/openstack/mistral)

Live Demo

http://rawgit.com/nokia/CloudFlow/master/docs/index.html

Features

• Visualize the flow of workflow executions
• Identify the execution path of a single task in huge workflows
• Easily distinguish between simple task (an action) and a sub workflow execution
• Follow tasks with a retry and/or with-items
• 1-click to copy task's input/output/publish/params values
• See complete workflow definition and per task definition YAML
• And more...

Table of Contents

• Requirements
• Installation
• Authentication
• Development and Building

Requirements

Mistral >= Pike

CloudFlow requires Mistral Pike or greater, as we rely on new runtime_context added to Mistral Pike.

Installing CloudFlow on the Mistral machine

CloudFlow has no dedicated backend service and passes the API calls to Mistral via Proxy settings.

In the scripts folder there are 2 configuration files: one for when using ngnix and one for apache.

To run CloudFlow on your Mistral instance:

1. Go to releases tab and download the latest release. Extract into a known location (i.e. /opt) so you'll have a /opt/CloudFlow/ folder.
   • There will be 2 folders in there: dist which holds the UI application, and scripts for the various web servers options.
2. Copy the appropriate configuration file to the configuration directory on your Mistral machine:
   • nginx: usually: /etc/nginx/conf.d/http/servers/
   • Apache2:
     • Linux: /etc/apache2/sites-enabled/.
     • Mac: /etc/apache2/other/. Also make sure that the environment variable APACHE_LOG_DIR is set to the proper value. On Mac computers it's usually /var/log/apache2.
     • Note that for apache2 several modules need to be enabled. See file for more info.
3. Optionally update the path in the configuration file(s) to point to the dist folder (i.e. /opt/CloudFlow/dist)
4. Optionally update the port for which CloudFlow will be served in the browser (currently: 8000)
5. Optionally enable HTTPS in the configuration file.
6. Restart nginx/apache.
7. Open the browser and navigate to http[s]://<your_mistral_ip>:8000.
8. Whenever there is an update to CloudFlow, simply download the latest version and extract it in the same place.

A Dockerfile will be provided in future release.

Authentication

OpenID Connect

CloudFlow supports the OpenID Connect protocol (and was tested against KeyCloak).

If your Mistral requires authentication and uses the OpenID Connect protocol, create the following auth.json file under the assets/ folder (i.e. assets/auth.json):

{
  "_type": "openid-connect",
  "issuer": "<Url of the Identity Provider>",
  "loginUrl": "<Url for login endpoint>",
  "clientId": "<Client Identifier valid at the Authorization Server>"
}

You can obtain all the URLs by examining the output of https://<openid-server-ip>:<port>/auth/realms/<realm>/.well-known/openid-configuration

No Authentication

If you want to work w/o authentication, make sure your Mistral does not require authentication to perform REST API requests, by setting the following in /etc/mistral/mistral.conf:

[pecan]
auth_enable=False

Also, make sure there is no auth.json file under the assets/ directory.

Development

• Clone this repo
• yarn install (preferred) or npm install
• Edit proxy.conf.json to point your Mistral instance.
• Edit the auth.json file (if needed)
• npm run start

Building

• Clone this repo
• yarn install (preferred) or npm install
• npm run build
• The artifacts will be stored in dist folder.