Provided by: docker.io_29.1.3-0ubuntu3~25.10.1_amd64 

NAME
docker-swarm-ca - Display and rotate the root CA
SYNOPSIS
docker swarm ca [OPTIONS]
DESCRIPTION
Display and rotate the root CA
OPTIONS
--ca-cert= Path to the PEM-formatted root CA certificate to use for the new cluster
--ca-key= Path to the PEM-formatted root CA key to use for the new cluster
--cert-expiry=2160h0m0s Validity period for node certificates (ns|us|ms|s|m|h)
-d, --detach[=false] Exit immediately instead of waiting for the root rotation to converge
--external-ca= Specifications of one or more certificate signing endpoints
-q, --quiet[=false] Suppress progress output
--rotate[=false] Rotate the swarm CA - if no certificate or key are provided, new ones will be
generated
SEE ALSO
docker-swarm(1)
Docker Community Jan 2026 DOCKER(1)