148422597X Kubernetes Management Design Patterns [Vohra 2017-01-29] {E559F6BB}

Chapter 15 ■ Using an HA Master with OpenShift
All of the preceding software except the Network Manager is installed automatically when we run the
Ansible playbook. We also need to install the docker.pem credentials on each of the CoreOS instances and
the Ubuntu instance for OpenShift Ansible, which we shall install next.
Installing the Credentials
From the local machine SCP copy the docker.pem into the Ubuntu instance that is the client instance for
launching the OpenShift cluster using the Public IP address or Public DNS, which may be obtained from the
EC2 Console:
scp -i docker.pem docker.pem ubuntu@ec2-52-87-178-15.compute-1.amazonaws.com:~
Similarly, obtain the Public DNS for each of the CentOS instances, the ones for the masters, worker,
Etcd, and LoadBalancer. SCP copy the docker.pem file to each of the CentOS instances. The following scp
commands copy the docker.pem file to the master instances:
scp -i docker.pem docker.pem centos@ec2-54-90-107-98.compute-1.amazonaws.com:~
scp -i docker.pem docker.pem centos@ec2-54-221-182-68.compute-1.amazonaws.com:~
The following scp command copies the docker.pem to the Worker instance.
scp -i docker.pem docker.pem centos@ec2-54-159-26-13.compute-1.amazonaws.com:~
The following scp command copies the docker.pem to the LoadBalancer instance.
scp -i docker.pem docker.pem centos@ec2-54-226-7-241.compute-1.amazonaws.com:~
The following scp command copies the docker.pem to the Etcd instance:
scp -i docker.pem docker.pem centos@ec2-54-160-210-253.compute-1.amazonaws.com:~
The scp commands do not generate any output, as shown in Figure 15-4.
Figure 15-4. Copying docker.pem to each of the CoreOS instances
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