docker/ucp install

Estimated reading time: 7 minutes

This topic applies to Docker Enterprise.

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Install UCP on a node


docker container run \
    --rm \
    --interactive \
    --tty \
    --name ucp \
    --volume /var/run/docker.sock:/var/run/docker.sock \
    docker/ucp \
    install [command options]


This command initializes a new swarm, turns anode into a manager, and installs Docker Universal Control Plane (UCP).

When installing UCP you can customize:

  • The UCP web server certificates. Create a volume named ucp-controller-server-certs and copy the ca.pem, cert.pem, and key.pem files to the root directory. Then run the install command with the --external-server-cert flag.
  • The license used by UCP, which you can accomplish by bind-mounting the file at /config/docker_subscription.lic in the tool. For example, -v /path/to/my/config/docker_subscription.lic:/config/docker_subscription.lic or by specifying the --license $(cat license.lic) option.

If you’re joining more nodes to this swarm, open the following ports in your firewall:

  • 443 or the --controller-port
  • 2376 or the --swarm-port
  • 12376, 12379, 12380, 12381, 12382, 12383, 12384, 12385, 12386, 12387
  • 4789 (udp) and 7946 (tcp/udp) for overlay networking


If you are installing UCP on a manager node with SELinunx enabled at the daemon and operating system level, you will need to pass --security-opt label=disable in to your install command. This flag will disable SELinux policies on the installation container. The UCP installation container mounts and configures the Docker Socket as part of the UCP installation container, therefore the UCP installation will fail with a permission denied error if you fail to pass in this flag.

FATA[0000] unable to get valid Docker client: unable to ping Docker daemon: Got
permission denied while trying to connect to the Docker daemon socket at
unix:///var/run/docker.sock: Get http://%2Fvar%2Frun%2Fdocker.sock/_ping: dial
unix /var/run/docker.sock: connect: permission denied - If SELinux is enabled
on the Docker daemon, make sure you run UCP with "docker run --security-opt
label=disable -v /var/run/docker.sock:/var/run/docker.sock ..."

An installation command for a system with SELinux enabled at the daemon level would be:

docker container run \
    --rm \
    --interactive \
    --tty \
    --name ucp \
    --security-opt label=disable \
    --volume /var/run/docker.sock:/var/run/docker.sock \
    docker/ucp \
    install [command options]

Cloud Providers

If you are installing on a public cloud platform there is cloud specific UCP installation documentation:


Option Description
--debug, -D Enable debug mode
--jsonlog Produce json formatted output for easier parsing
--interactive, -i Run in interactive mode and prompt for configuration values
--admin-password value The UCP administrator password [$UCP_ADMIN_PASSWORD]
--admin-username value The UCP administrator username [$UCP_ADMIN_USER]
--azure-ip-count value Configure the Number of IP Address to be provisioned for each Azure Virtual Machine (default: “128”)
--binpack Set the Docker Swarm scheduler to binpack mode. Used for backwards compatibility
--cloud-provider value The cloud provider for the cluster
--cni-installer-url value A URL pointing to a kubernetes YAML file to be used as an installer for the CNI plugin of the cluster. If specified, the default CNI plugin will not be installed. If the URL is using the HTTPS scheme, no certificate verification will be performed
--controller-port value Port for the web UI and API (default: 443)
--data-path-addr value Address or interface to use for data path traffic. Format: IP address or network interface name [$UCP_DATA_PATH_ADDR]
--disable-tracking Disable anonymous tracking and analytics
--disable-usage Disable anonymous usage reporting
--dns-opt value Set DNS options for the UCP containers [$DNS_OPT]
--dns-search value Set custom DNS search domains for the UCP containers [$DNS_SEARCH]
--dns value Set custom DNS servers for the UCP containers [$DNS]
--enable-profiling Enable performance profiling
--existing-config Use the latest existing UCP config during this installation. The install will fail if a config is not found
--external-server-cert Customize the certificates used by the UCP web server
--external-service-lb value Set the IP address of the load balancer that published services are expected to be reachable on
--force-insecure-tcp Force install to continue even with unauthenticated Docker Engine ports.
--force-minimums Force the install/upgrade even if the system does not meet the minimum requirements
--host-address value The network address to advertise to other nodes. Format: IP address or network interface name [$UCP_HOST_ADDRESS]
--iscsiadm-pathvalue Path to the host iscsiadm binary. This option is applicable only when --storage-iscsi is specified
--iscsidb-path value Path to the host iscsi DB. This option is applicable only when --storage-iscsi is specified
--kube-apiserver-port value Port for the Kubernetes API server (default: 6443)
--kv-snapshot-count value Number of changes between key-value store snapshots (default: 20000) [$KV_SNAPSHOT_COUNT]
--kv-timeout value Timeout in milliseconds for the key-value store (default: 5000) [$KV_TIMEOUT]
--license value Add a license: e.g. --license “$(cat license.lic)” [$UCP_LICENSE]
--nodeport-range value Allowed port range for Kubernetes services of type NodePort (Default: 32768-35535) (default: “32768-35535”)
--pod-cidr value Kubernetes cluster IP pool for the pods to allocated IP from (Default: (default: “”)
--preserve-certs Don’t generate certificates if they already exist
--pull value Pull UCP images: ‘always’, when ‘missing’, or ‘never’ (default: “missing”)
--random Set the Docker Swarm scheduler to random mode. Used for backwards compatibility
--registry-password value Password to use when pulling images [$REGISTRY_PASSWORD]
--registry-username value Username to use when pulling images [$REGISTRY_USERNAME]
--san value Add subject alternative names to certificates (e.g. --san --san [$UCP_HOSTNAMES]
--service-cluster-ip-range value Kubernetes Cluster IP Range for Services (default: “”)
--skip-cloud-provider-check Disables checks which rely on detecting which (if any) cloud provider the cluster is currently running on
--storage-expt-enabled Flag to enable experimental features in Kubernetes storage
--storage-iscsi Enable ISCSI based Persistent Volumes in Kubernetes
--swarm-experimental Enable Docker Swarm experimental features. Used for backwards compatibility
--swarm-grpc-port value Port for communication between nodes (default: 2377)
--swarm-port value Port for the Docker Swarm manager. Used for backwards compatibility (default: 2376)
--unlock-key value The unlock key for this swarm-mode cluster, if one exists. [$UNLOCK_KEY]
--unmanaged-cni Flag to indicate if cni provider is calico and managed by UCP (calico is the default CNI provider)
ucp, cli, install