With enterprise LDAP, retrieve single execution returns 500

[jdmeyer3]

SUMMARY

With st2 rbac enterprise enabled and the user is using a custom defined role, retrieving a single execution's result returns a 500 internal server error.

STACKSTORM VERSION

st2 3.1.0, on Python 2.7.5

OS, environment, install method

Kubernetes with custom CentOS image.
BWC enterprise edition

Steps to reproduce the problem

With BWC enterprise edition installed, put

[auth]
enable = True
backend = ldap

in the /etc/st2/st2.conf or the /etc/st2/st2.docker.conf in the k8s version.

Then in the /opt/stackstorm/rbac/roles add the following role

---
    name: "custom"
    description: "some custom role"
    enabled: true
    permission_grants:
        -
            permission_types:
               - "api_key_create"
               - "pack_install"
               - "pack_uninstall"
               - "pack_config"
               - "pack_create"
               - "pack_register"
               - "pack_list"
               - "pack_search"
               - "pack_views_index_health"
               - "action_alias_match"
               - "action_alias_help"
               - "action_list"
               - "policy_create"
               - "policy_list"
               - "policy_type_list"
               - "execution_views_filters_list"
               - "execution_list"
               - "stream_view"
               - "inquiry_list"
               - "inquiry_respond"
               - "inquiry_view"
               - "api_key_list"
               - "trace_list"
               - "runner_type_list"
               - "rule_enforcement_list"
               - "webhook_list"
               - "rule_list"
               - "action_alias_list"
               - "sensor_type_list"
               - "trigger_list"
               - "timer_list"
        -
            resource_uid: "pack:packs"
            permission_types:
               - "pack_view"
               - "pack_all"
               - "pack_config"
               - "rule_all"
               - "action_all"
               - "sensor_type_all"

In the /opt/stackstorm/mappings add a file to map this role to a user

---
group: "<some ldap backend that maps to a user>"
description: "grants custom role to a user"
roles:
  - "custom"

Apply the rbac settings and login to StackStorm.

Run any action in the packs, then try to expand the output from the history page.

Expected Results

The api to return the results of the execution

Actual Results

In the console, a 500 is returned and a blank page is shown

[m4dcoder]

@jdmeyer3 Do you have any more information from the log? With a 500 internal server error, there may be additional information in the logs that will be helpful in identifying the cause. Thanks.