overnode env

Print remote node connection string for docker client.

> overnode [--debug] [--no-color] env --id ID [OPTION] ...
Options: Description:
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--id ID Target peer node identifier.
-inline If specified, prints -H option for docker command line.
Otherwise, prints the spec for DOCKER_HOST environment variable.
--ignore-unreachable-nodes
Skip checking if all target nodes are reachable.
-h|--help Print this help.
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