SUMMARY

Hi everyone, I have an issue about workflow mistral and action-chain. When I call mistral in 2 consecutive action-chains

testing1 (action-chains) > testing2 (action-chains)> testing3 (mistral)

It's failed with error [ Can not evaluate Jinja expression ]. Please help me, thanks very much.

{

"traceback": " File \"/opt/stackstorm/st2/lib/python2.7/site-packages/st2actions/container/base.py\", line 126, in _do_run\n (status, result, context) = runner.run(action_params)\n File \"/opt/stackstorm/st2/lib/python2.7/site-packages/retrying.py\", line 49, in wrapped_f\n return Retrying(*dargs, **dkw).call(f, *args, **kw)\n File \"/opt/stackstorm/st2/lib/python2.7/site-packages/retrying.py\", line 206, in call\n return attempt.get(self._wrap_exception)\n File \"/opt/stackstorm/st2/lib/python2.7/site-packages/retrying.py\", line 247, in get\n six.reraise(self.value[0], self.value[1], self.value[2])\n File \"/opt/stackstorm/st2/lib/python2.7/site-packages/retrying.py\", line 200, in call\n attempt = Attempt(fn(*args, **kwargs), attempt_number, False)\n File \"/opt/stackstorm/runners/mistral_v2/mistral_v2/mistral_v2.py\", line 247, in run\n result = self.start_workflow(action_parameters=action_parameters)\n File \"/opt/stackstorm/runners/mistral_v2/mistral_v2/mistral_v2.py\", line 289, in start_workflow\n **options)\n File \"/opt/stackstorm/st2/lib/python2.7/site-packages/mistralclient/api/v2/executions.py\", line 65, in create\n return self._create('/executions', data)\n File \"/opt/stackstorm/st2/lib/python2.7/site-packages/mistralclient/api/base.py\", line 100, in _create\n self._raise_api_exception(resp)\n File \"/opt/stackstorm/st2/lib/python2.7/site-packages/mistralclient/api/base.py\", line 160, in _raise_api_exception\n error_message=error_data)\n", "error": *"Can not evaluate Jinja expression [expression=username, error='username' is undefined,* data={'__env': {u'st2_liveaction_id': u'5c13a011e13823e5dea1ee6c', u'st2_execution_id': u'5c13a011e13823e5dea1ee6d', u'__actions': {u'st2.action': {u'st2_context': {u'endpoint': u'http://127.0.0.1:9101/v1/actionexecutions', u'api_url': u'http://127.0.0.1:9101/v1', u'parent': {u'parent': {u'execution_id': u'5c13a010e13823e5da3e0766', u'pack': u'quoit_common', u'chain': {u'name': u'task1', u'parameters': {u'username': u'{{username}}', u'gender': u'{{gender}}'}, u'publish': {u'processing_result': u\"{{'test_value'}}\"}, u'params': None, u'notify': None, u'on_failure': None, u'ref': u'quoit_common.testing2', u'on_success': None}, u'parent': {u'trace_context': {}, u'user': u'st2admin', u'execution_id': u'5c13a00fe13823e80dc0bded', u'pack': u'quoit_common'}, u'user': u'st2admin'}, u'user': u'st2admin', u'chain': {u'name': u'task1', u'parameters': {u'username': u'{% raw %}{{username}}{% endraw %}', u'gender': u'{% raw %}{{gender}}{% endraw %}'}, u'publish': {u'processing_result': u\"{{'test_value'}}\"}, u'params': None, u'notify': None, u'on_failure': None, *u'ref': u'quoit_common.testing3', u'on_success': None},* u'execution_id': u'5c13a011e13823e5dea1ee6d', u'pack': u'quoit_common'}, u'auth_token': u'7a82e3de2a7141b98f1fda824a07c750', u'skip_notify_tasks': [], u'notify': {}}}}, u'st2_action_api_url': u'http://127.0.0.1:9101/v1'}}]" }

Link refer: https://stackstorm-community.slack.com/archives/C066APT88/p1544789967918200

ISSUE TYPE

Bug Report

STACKSTORM VERSION

st2 2.9.1, on Python 2.7.15

OS / ENVIRONMENT / INSTALL METHOD

Operating System: CentOS Linux 7 (Core) Kernel: Linux 3.10.0-862.9.1.el7.x86_64 Architecture: x86-64

Installed via CLI https://docs.stackstorm.com/install/rhel7.html

STEPS TO REPRODUCE

Run this CLI to execute from testing1 (action-chains -> action-chains -> mistral)

st2 run quoit_common.testing1 username='ariston' gender='male' Failed with "Can not evaluate Jinja expression"
Run this CLI to execute from testing2 (action-chains -> mistral)

st2 run quoit_common.testing2 username='ariston' gender='male' Status: succeeded

This is my demo about mistral in 2 consecutive action-chains above:

File testing1.meta.yaml

---
name: "testing1"
description: "testing1"
runner_type: "action-chain"
entry_point: "chains/testing1.yaml"
enabled: true
parameters:
    username:
        type: "string"
        description: "username"
        required: true
    gender:
        type: "string"
        description: "gender"
        required: true

File testing1.yaml

---
    chain:
        -
            name: "task1"
            ref: "quoit_common.testing2"
            parameters:
                username: "{{username}}"
                gender: "{{gender}}"
            publish:
                processing_result: "{{'test_value'}}"
    default: "task1"

=================== File testing2.meta.yaml

---
name: "testing2"
description: "testing2 workflow"
runner_type: "action-chain"
entry_point: "chains/testing2.yaml"
enabled: true
parameters:
    username:
        type: "string"
        required: true
        description: "username"
    gender:
        type: "string"
        required: false
        description: "gender"

File testing2.yaml

---
    chain:
        -
            name: "task1"
            ref: "quoit_common.testing3"
            parameters:
                username: "{{username}}"
                gender: "{{gender}}"
            publish:
                processing_result: "{{'test_value'}}"
    default: "task1"

=================== File testing3.yaml

---
name: "testing3"
description: "testing3 mistral workflow"
runner_type: "mistral-v2"
entry_point: "workflows/testing3.yaml"
enabled: true
parameters:
    username:
        type: "string"
        required: false
        description: "username"
    gender:
        type: "string"
        required: false
        description: "gender"

File testing3.yaml

---
version: '2.0'

quoit_common.testing3:
    description: A basic workflow for testing3
    type: direct
    input:
        - username
        - gender
    output:
        processing_result: <% $.processing_result %>
    tasks:
        task1:
            action: quoit_common.run_actions
            input:
                username: <% $.username %>
                gender: <% $.gender %>
            publish:
                processing_result: <% 'test_value' %>

=================== File run_actions.yaml

---
name: "run_actions"
runner_type: "python-script"
description: "run_actions"
enabled: true
entry_point: "python_scripts/run_actions.py"
parameters:
    username:
        type: "string"
        description: "username"
        required: false
    gender:
        type: "string"
        description: "gender"
        required: false

File run_actions.py

#!/usr/bin/python

from st2common.runners.base_action import Action

class RunActions(Action):
    def run(self, username, gender):
        print ('username')
        print('gender')

EXPECTED RESULTS

When execute from testing1 (action-chains -> action-chains -> mistral) => Status: succeeded st2 run quoit_common.testing1 username='ariston' gender='male'

ACTUAL RESULTS

When execute from testing1 (action-chains -> action-chains -> mistral) => Status: failed st2 run quoit_common.testing1 username='ariston' gender='male'

StackStorm / st2

Cannot evaluate Jinja expression when calling mistral in 2 consecutive action-chains #4475