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

СреднийУровень 1Ручная проверкаdocker

Описание

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.

Как проверяется

Метод проверки: Ручная проверка

Эту рекомендацию нельзя проверить автоматически. Сканирование выводит её вместе с этими инструкциями при указании флага --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.

Как исправляется

Метод исправления: Рекомендация или патч инфраструктуры

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.

Свойства

Операционные системы: Любая
Теги: dockermanual
Источник: CIS Docker Benchmark v1.9.0 - 7.1 Ensure that the minimum number of manager nodes have been created in a swarm