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Info

This article is valid for Digital Access 6.2 and later.

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Note

  • Manager node is the node that hosts the administration service.

  • Worker node is a node that hosts other services, not running the administration service.

  • Make sure 1003 is available for user id and group id.

Prerequisites

  • Two Digital Access components with services and docker swarm available 

  • The following ports shall be open to traffic to and from each Docker host participating on an overlay network:

    • TCP port 2377 for cluster management communications

    • TCP and UDP port 7946 for communication among nodes

    • UDP port 4789 for overlay network traffic

  • For more details refer to: https://docs.docker.com/network/overlay/

  • Keep a note of IP addresses of nodes where access point is running.

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  1. SSH to manager node.

  2. Remove label for all services which are not required on this node.

    Remove label

    Code Block
    sudo docker node update --label-rm  da-access-point <nodeid>

  3. Verify if all nodes are part of cluster by running this command.

    Verify if all nodes are part of cluster

    Code Block
    sudo docker node ls
    Image RemovedImage Added

  4. Identify nodes ID, master and worker where the service will be distributed.

    Identify nodes

    Code Block
    sudo docker node inspect --format '{{ .Status }}' h9u7iiifi6sr85zyszu8xo54l

    Output: {ready  192.168.86.129} - IP address will help to identify the DA node  

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