Cluster Connections

Connecting to multiple DC/OS clusters

You connect to multiple DC/OS clusters using dcos cluster commands.

The dcos cluster command has subcommands to set up connections to and attach to clusters, and rename and remove clusters.

Setting up a connection to a cluster

Setting up a connection to a cluster

  • stores connection configuration in the file <home-directory>/.dcos/clusters/<cluster_id>/dcos.toml
  • attaches to the cluster
  • authenticates to DC/OS

Attaching to a cluster sets it as the active cluster.

To set up a connection to a cluster, run the dcos cluster setup command, replacing <dcos-url> with the cluster URL:

  1. dcos cluster setup <dcos-url>

Attaching to a cluster

To attach to a connected cluster, run the dcos cluster attach command, replacing <name> with the cluster name:

  1. dcos cluster attach <connected-cluster-name>

Viewing connected clusters

To view all connected clusters, run the dcos cluster list command. The command lists the cluster name, cluster ID, status, DC/OS version (if the cluster is reachable), and the URL of the master node. The attached cluster has an asterisk (*) by its cluster name.

Status can have the following values:

  • AVAILABLE : the cluster was set up locally and is reachable
  • UNAVAILABLE : the cluster was set up locally and is unreachable
  • UNCONFIGURED : the cluster was not set up locally (i.e., the cluster is linked to the currently attached cluster).

In this example, the cluster named dcosdev is attached:

  1.   NAME                   CLUSTER ID                 STATUS       VERSION                     URL
  2. dcosprod     5f7fb957-6daf-446e-8689-0b5b476b2d39  UNAVAILABLE   1.13.0    https://dcosclus-eosy.us-west-2.elb.amazonaws.com
  3. dcosdev*     cf96739f-f800-42ea-95d7-d60acc689194  AVAILABLE     1.13.0    https://dcosclus-5m65.us-west-2.elb.amazonaws.com

To view only the attached cluster, run the dcos cluster list --attached command.

Renaming a cluster

You can rename a connected cluster with the dcos cluster rename <name> <new-name> command. For example, to rename your cluster from dcosdev to dcoslive:

  1. dcos cluster rename dcosdev dcoslive

NOTE: This renames the cluster only locally. The actual cluster name on the server is not changed.

Removing a cluster

You can remove a connected cluster with the dcos cluster remove <name> command. For example, to remove the cluster dcosdev:

  1. dcos cluster remove dcosdev

If you remove the attached cluster, dcos commands to perform operations such as installing packages on the cluster will fail until you attach another connected cluster.