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

Chapter 5 ■ Using the Tectonic Console
If the Pull Secret file is downloaded to a local machine, scp copy the file to the CoreOS instance for the
Kubernetes controller. First, the key pair may need to be copied to the local machine:
scp -i docker.pem ec2-user@ec2-52-201-216-175.compute-1.amazonaws.com:~/kubernetes-coreos.
pem ~/kubernetes-coreos.pem
The key pair used to SSH log in to the controller CoreOS instance is copied to the local machine.
Next copy the coreos-pull-secret.yml file to the controller instance:
scp -i kubernetes-coreos.pem /media/sf_VMShared/kubernetes/tectonic/coreos-pull-secret.yml
core@ec2-23-20-52-23.compute-1.amazonaws.com:~/coreos-pull-secret.yml
Another file required for the Tectonic Console is the Tectonic Console Manifest file tectonic-console.
yaml, which defines the Kubernetes deployment required to run a container for the Tectonic Console on the
Kubernetes cluster. Download the Tectonic Console Manifest from https://tectonic.com/enterprise/
docs/latest/deployer/files/tectonic-console.yaml. Copy the Tectonic Console Manifest to the
controller CoreOS instance.
scp -i kubernetes-coreos.pem /media/sf_VMShared/kubernetes/tectonic/tectonic-console.yaml
core@ec2-23-20-52-23.compute-1.amazonaws.com:~/tectonic-console.yaml
The Tectonic Console Manifest is copied to the controller CoreOS instance.
If the ls –l command is run on the CoreOS instance for the controller, the coreos-pull-secret.yml
and the tectonic-console.yaml files should be listed as shown in Figure 5-6.
Figure 5-6. Listing files in the controller CoreOS instance
Installing the Pull Secret and the Tectonic Console Manifest
Next, install the Pull Secret on the Kubernetes cluster:
kubectl create -f coreos-pull-secret.yml
A Kubernetes Secret called coreos-pull-secret is created; it will be used by Kubernetes to pull and
install the image for the Tectonic Console.
Next, install the Tectonic Console using the Tectonic Console Manifest, making use of the Pull Secret to
pull and install the image for the tectonic-console. The following command creates a replication controller
called tectonic-console.
kubectl create -f tectonic-console.yaml
122
List the pods, which should specify just the tectonic-console pod to be listed:
kubectl get pods -l tectonic-app=console