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Install Docker

Installing Docker will be a little different based on the Linux distribution chosen but should be straightforward using the appropriate Linux package manager.

To install Docker Community Edition, refer to: https://docs.docker.com/engine/install/

Note

If installing onto Redhat 8/9, use the instructions for CentOS. Additionally, only the 'docker-ce' package needs to be installed, the other packages are optional.

To install a paid and supported version of Docker Swarm, refer to: https://www.mirantis.com/software/swarm/

The following ports must be available and allowed in the network according to the Docker Swarm docs:

  • Port 2377 TCP for communication with and between manager nodes

  • Port 7946 TCP/UDP for overlay network node discovery

  • Port 4789 UDP (configurable) for overlay network traffic

    • Ensure IP protocol 50 (IPSec ESP) traffic is allowed.