Make DTR install on UCP node requirement clearer

During DockerCon workshops and other customer sessions several people have noted that it is not clear that DTR must be installed on a node already joined to the UCP cluster (they asked if it automatically joined the UCP cluster or not). Adding two lines (one in install and one in replica joins) that hopefully makes this clearer.
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Vivek Saraswat 2016-08-05 16:58:41 -07:00 committed by GitHub
parent 3350253c19
commit 98e45b7ce8
1 changed files with 2 additions and 2 deletions

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@ -32,7 +32,7 @@ infrastructure has all the [requirements DTR needs to run](system-requirements.m
Since DTR requires a Docker Universal Control Plane (UCP) cluster Since DTR requires a Docker Universal Control Plane (UCP) cluster
to run, you need to install UCP first. to run, you need to install UCP first.
[Learn how to install UCP](https://docs.docker.com/ucp/installation/install-production/). [Learn how to install UCP](https://docs.docker.com/ucp/installation/install-production/). Make sure that the node you install DTR on is already joined to the UCP cluster.
## Step 3. Install DTR ## Step 3. Install DTR
@ -113,7 +113,7 @@ This step is optional.
To set up DTR for [high availability](../high-availability/index.md), To set up DTR for [high availability](../high-availability/index.md),
you can add more replicas to your DTR cluster. Adding more replicas allows you you can add more replicas to your DTR cluster. Adding more replicas allows you
to load-balance requests across all replicas, and keep DTR working if a to load-balance requests across all replicas, and keep DTR working if a
replica fails. replica fails. Each replica must be located on a node already joined to the UCP cluster.
To add replicas to a DTR cluster, use the `docker/dtr join` command. To add To add replicas to a DTR cluster, use the `docker/dtr join` command. To add
replicas: replicas: