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Get the 'NodeID' of the Swarm node or 'None' if host is not in Swarm. It returns the NodeID
of Docker host the module is executed on
:return:
NodeID of host or 'None' if not part of Swarm
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Checking if host is part of Docker Swarm. If 'node_id' is not provided it reads the Docker host
system information looking if specific key in output exists. If 'node_id' is provided then it tries to
read node information assuming it is run on Swarm manager. The get_node_inspect() method handles exception if
it is not executed on Swarm manager
:param node_id: Node identifier
:return:
bool: True if node is part of Swarm, False otherwise
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Checks if node role is set as Manager in Swarm. The node is the docker host on which module action
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:return: True if node is Swarm Manager, False otherwise
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If host is not a swarm manager then Ansible task on this host should end with 'failed' state
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Checks if node role is set as Worker in Swarm. The node is the docker host on which module action
is performed. Will fail if run on host that is not part of Swarm via check_if_swarm_node()
:return: True if node is Swarm Worker, False otherwise
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Checks if node status on Swarm manager is 'down'. If node_id is provided it query manager about
node specified in parameter, otherwise it query manager itself. If run on Swarm Worker node or
host that is not part of Swarm it will fail the playbook
:param repeat_check: number of check attempts with 5 seconds delay between them, by default check only once
:param node_id: node ID or name, if None then method will try to get node_id of host module run on
:return:
True if node is part of swarm but its state is down, False otherwise
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