Opsview - Newly Setup Collectors Fail to Establish Connectivity in 6.10.1+

Symptoms

• newly set collectors in opsview 6.10.1 + fail to establish a rabbitMQ connection
• You will see an icon like ? in the GUI on the collectors page

• Sep 24 10:51:00 testxxxx opsview.common.servicemon.propagation <1043> : [ERR] 
  Sending cluster-health message failed (Connection lost). Waiting 5.0s.........
  ......truncated output  File "/opt/opsview/scheduler/venv3/lib/python3.9/site-packages/
  opsview/common/messagequeue/rabbitmq_nucleon.py", line 49, in create_channel
  #012 File "/opt/opsview/scheduler/venv3/lib/python3.9/site-packages/opsview/common/
  messagequeue/rabbitmq_nucleon.py", line 135, in __init__#012opsview.common.
  messagequeue.exception.MessageQueueError: Connection lost
  
  in connect#012 raise v#012 File "/opt/opsview/python3/lib/python3.9/site-packages/
  nucleon/amqp/connection.py", line 240, in do_read#012 frame_header = reader.read
  (FRAME_HEADER.size)#012 File "/opt/opsview/python3/lib/python3.9/site-packages/
  in connect#012 raise v#012 File "/opt/opsview/python3/lib/python3.9/site-packages/nucleon/
  amqp/connection.py", line 240, in do_read#012 frame_header = reader.read(FRAME_HEADER.size)#012 
  File "/opt/opsview/python3/lib/python3.9/site-packages/nucleon/amqp/buffers.py", line 58, in read
  #012 raise ConnectionError(CONNECTION_LOST_MSG)#012nucleon.amqp.exceptions.ConnectionError: 
  Connectionnucleon/amqp/buffers.py", line 58, in read#012 raise ConnectionError
  (CONNECTION_LOST_MSG)#012nucleon.amqp.exceptions.ConnectionError: 

• Shows as "healthy" because its not received any updates yet:

Cause: missing RabbitMQ user/users on the orchestrator

the new cluster user does NOT exist on orchestrator MQ, but only in the user_secrets file
(Deploy behavior change)

Solution: Run the MQ install playbook

Make sure to run the below and that should fix your issue, BUT before you run it you need to hard code your user_vars.yml file to tell it not to update to any higher version as opsview will always search for new packages if not locked onto its version.
 
vim /opt/opsview/deploy/etc/user_vars.yml
 
and then add the below:
opsview_repository_min_version: 6.10.1.202408161522
opsview_repository_version: 6.10.1.202408161522
 
save and quit, then run the below:
 
/opt/opsview/deploy# ./bin/opsview-deploy -l opsview_messagequeue lib/playbooks/messagequeue-install.yml

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