Ensure that the minimum number of manager nodes have been created in a swarm

MédiaNível 1Revisão manualdocker

Descrição

You should ensure that the minimum number of required manager nodes is created in a swarm. Manager nodes within a swarm have control over the swarm and can change its configuration, including modifying security parameters. Having excessive manager nodes could render the swarm more susceptible to compromise. Reported as a manual review item: the audit needs a site-specific judgement.

Como é verificado

Método de auditoria: Revisão manual

Esta recomendação não pode ser verificada automaticamente. Uma varredura a lista com estas instruções quando você passa --include-manual.

Run docker info and verify the number of managers. docker info --format '{{ .Swarm.Managers }}' Alternatively run the below command. docker node ls | grep 'Leader' Expected state: If an excessive number of managers is configured, the excess nodes can be demoted to workers using the following command: docker node demote <ID> Where <ID> is the node ID value of the manager to be demoted.

Como é corrigido

Método de correção: Orientação ou patch de infraestrutura

If an excessive number of managers is configured, the excess nodes can be demoted to workers using the following command: docker node demote <ID> Where <ID> is the node ID value of the manager to be demoted.

Propriedades

Sistemas operacionais: Qualquer
Tags: dockermanual
Referência: CIS Docker Benchmark v1.9.0 - 7.1 Ensure that the minimum number of manager nodes have been created in a swarm