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Can you associate a mistral workflow execution with an environment via the CLI?

asked 2017-04-19 13:04:13 -0500

mattybrennan gravatar image

I can create an environment, and I can create a workflow execution. But I don't see any way via the CLI to associate a workflow or a workflow execution with an environment

usage: mistral environment-create [-h] [-f {json,shell,table,value,yaml}]
                              [-c COLUMN] [--max-width <integer>]
                              [--print-empty] [--noindent]
                              [--prefix PREFIX]
                              file

-

usage: mistral workflow-create [-h] [-f {csv,json,table,value,yaml}]
                           [-c COLUMN] [--max-width <integer>]
                           [--print-empty] [--noindent]
                           [--quote {all,minimal,none,nonnumeric}]
                           [--public]
                           definition

-

usage: mistral execution-create [-h] [-f {json,shell,table,value,yaml}]
                            [-c COLUMN] [--max-width <integer>]
                            [--print-empty] [--noindent] [--prefix PREFIX]
                            [-d DESCRIPTION]
                            workflow_identifier [workflow_input] [params]
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3 answers

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answered 2017-04-20 07:52:20 -0500

zaneb gravatar image

When you define an environment inline, you pass it with the "env" key as part of the [params] argument (which is in JSON format IIUC). I'm not sure how that applies to predefined environments created through the API though.

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Thanks! This solves my problem.

mattybrennan gravatar imagemattybrennan ( 2017-04-25 10:58:32 -0500 )edit

It was confirmed in IRC that the following works, where my_env is the name of the predefined environment mistral execution-create $WORKFLOW '' '{"env": "my_env"}'

mattybrennan gravatar imagemattybrennan ( 2017-06-06 12:59:50 -0500 )edit
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answered 2017-04-25 10:28:32 -0500

d0ugal gravatar image

updated 2017-04-26 03:06:31 -0500

I don't think there is a way to link a pre-existing environment. You could, however, have a task in the workflow that fetches the environment. This workflow takes the name of a environment, it then fetches it and outputs the contents of the environment.

wf:
  input:
    - env_name
  tasks:
    get_env:
      action: mistral.environments_get name=<% $.env_name %>
      publish:
        env: task(get_env).result.variables
      on-complete: do_something
    do_something:
      action: std.echo output=<% $.env %>
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Thanks. I guess I don't understand when the pre-existing environments are ever used then.

mattybrennan gravatar imagemattybrennan ( 2017-04-25 10:58:13 -0500 )edit

This worked me too, provided that mistral.environments_get is working. I bet d0ugal's example worked when he posted it. I ran into an issue where it didn't work for me with mistral client 3.1.0 until I applied a fix destined for 3.1.1. Details in bug: https://bugs.launchpad.net/mistral/+bug/1696128 (https://bugs.launchpad.net/mistral/+b...)

fultonj gravatar imagefultonj ( 2017-06-07 12:02:24 -0500 )edit
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answered 2017-06-06 13:43:48 -0500

fultonj gravatar image

Here is a working example: http://blog.johnlikesopenstack.com/2017/06/accessing-mistral-environment-in-cli.html (http://blog.johnlikesopenstack.com/20...)

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Asked: 2017-04-19 13:04:13 -0500

Seen: 83 times

Last updated: Jun 06

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