Description of problem:
The curator pod is always in Error status, there has some error message in the logs:

$ oc get pod
NAME                                            READY   STATUS    RESTARTS   AGE
cluster-logging-operator-54f56bccd-7ffg7        1/1     Running   0          82m
curator-1595833200-bm8xw                        0/1     Error     0          6m55s
elasticsearch-cdm-ge8f518d-1-774877997b-xkcbx   2/2     Running   0          76m
elasticsearch-cdm-ge8f518d-2-5d6d4cc4c5-h4s7k   2/2     Running   0          76m
elasticsearch-cdm-ge8f518d-3-885c875f-l4jsz     2/2     Running   0          76m
fluentd-9bhv4                                   1/1     Running   1          76m
fluentd-dtlmh                                   1/1     Running   0          76m
fluentd-f4h97                                   1/1     Running   0          76m
fluentd-kqn9g                                   1/1     Running   0          76m
fluentd-tmvfq                                   1/1     Running   0          76m
fluentd-vgwhz                                   1/1     Running   0          76m
kibana-5469f5f7d8-qsvrl                         2/2     Running   0          76m

$ oc logs curator-1595833200-bm8xw 
Traceback (most recent call last):
  File "/opt/app-root/src/lib/oalconverter/convert.py", line 18, in <module>
    from ruamel import yaml
ModuleNotFoundError: No module named 'ruamel'
Usage: curator [OPTIONS] ACTION_FILE

Error: Invalid value for "action_file": Path "/opt/app-root/src/actions.yaml" does not exist.

$ oc get cm curator -oyaml
apiVersion: v1
data:
  actions.yaml: |
    # ---
    # Remember, leave a key empty if there is no value.  None will be a string,
    # not a Python "NoneType"
    #
    # Also remember that all examples have 'disable_action' set to True.  If you
    # want to use this action as a template, be sure to set this to False after
    # copying it.
    # actions:
    #   1:
    #     action: delete_indices
    #     description: >-
    #       Delete .operations indices older than 30 days.
    #       Ignore the error if the filter does not
    #       result in an actionable list of indices (ignore_empty_list).
    #       See https://www.elastic.co/guide/en/elasticsearch/client/curator/5.2/ex_delete_indices.html
    #     options:
    #       # Swallow curator.exception.NoIndices exception
    #       ignore_empty_list: True
    #       # In seconds, default is 300
    #       timeout_override: ${CURATOR_TIMEOUT}
    #       # Don't swallow any other exceptions
    #       continue_if_exception: False
    #       # Optionally disable action, useful for debugging
    #       disable_action: False
    #     # All filters are bound by logical AND
    #     filters:
    #     - filtertype: pattern
    #       kind: regex
    #       value: '^\.operations\..*$'
    #       exclude: False
    #     - filtertype: age
    #       # Parse timestamp from index name
    #       source: name
    #       direction: older
    #       timestring: '%Y.%m.%d'
    #       unit: days
    #       unit_count: 30
    #       exclude: False
  config.yaml: |
    # Logging example curator config file

    # uncomment and use this to override the defaults from env vars
    #.defaults:
    #  delete:
    #    days: 30

    # to keep ops logs for a different duration:
    #.operations:
    #  delete:
    #    weeks: 8

    # example for a normal project
    #myapp:
    #  delete:
    #    weeks: 1
  curator5.yaml: "---\nclient:\n  hosts:\n  - ${ES_HOST}\n  port: ${ES_PORT}\n  use_ssl:
    True\n  certificate: ${ES_CA}\n  client_cert: ${ES_CLIENT_CERT}\n  client_key:
    ${ES_CLIENT_KEY}\n  ssl_no_validate: False\n  timeout: ${CURATOR_TIMEOUT}\n  master_only:
    False\nlogging:\n  loglevel: ${CURATOR_LOG_LEVEL}\n  logformat: default\n  blacklist:
    ['elasticsearch', 'urllib3']\n  \n"
kind: ConfigMap
metadata:
  creationTimestamp: "2020-07-27T05:50:13Z"
  name: curator
  namespace: openshift-logging
  ownerReferences:
  - apiVersion: logging.openshift.io/v1
    controller: true
    kind: ClusterLogging
    name: instance
    uid: b62cf505-01c4-4b7c-a42d-6965c1541e83
  resourceVersion: "64551"
  selfLink: /api/v1/namespaces/openshift-logging/configmaps/curator
  uid: 5f0f826b-e156-4124-8513-d639320e4630


Version-Release number of selected component (if applicable):
ose-logging-curator5-v4.4.0-202007240028.p0 

How reproducible:
Always

Steps to Reproduce:
1. deploy logging
2. check pod status
3.

Actual results:


Expected results:


Additional info: