Enabling OpenShift Metrics and Logging on Azure

Set up Cloud Shell by clicking the Cloud Shell button in the top-right corner of the screen:

When creating the Bash Cloud Shell File share, use the existing Resource Group and the existing Storage Account (In West US).

You will need to pull down the SSH keys to be able to connect to VMs. First, make the .ssh directory, if it isn't already there, with the mkdir command.

Then, cd into the .ssh directory.

Next, use wget to pull down the SSH keys using these links:

https://raw.githubusercontent.com/ACloudGuru-Resources/content-openshift-origin-azure/master/ssh/id_rsa

https://raw.githubusercontent.com/ACloudGuru-Resources/content-openshift-origin-azure/master/ssh/id_rsa.pub

Change the permission to the files to 600.

We will need use SSH to connect to each VM and run a prep script.

After we use SSH to connect to a VM, we will first need to install wget.

Next, we will need to download the associated script for the node found in the Git repo for the lab. The link is: https://raw.githubusercontent.com/ACloudGuru-Resources/content-openshift-origin-azure/master/scripts/

• For the bastionVM-0 it would be bastionhostPrep.sh

• For the masterVM-0 it would be masterPrep.sh

• For the infraVM-0 it would be infraPrep.sh

• For the appnodeVM-0 it would be nodePrep.sh

Once the download completes, we will need to make the script executable.

Finally, we must run the script. Ensure that sudo is used or the script will fail.

Use Ansible to run the prerequisites.yml and the deploy_cluster.yml playbooks to install OpenShift.

You will need to add the following to the /etc/ansible/hosts file:

# metrics
openshift_metrics_install_metrics=True
openshift_metrics_hawkular_hostname=hawlular-metrics.apps.okd.infra.example.xip.io
openshift_metrics_cassandra_storage_type=dynamic
openshift_metrics_storage_volume_size=1Gi
openshift_metrics_hawkular_nodeselector={"node-role.kubernetes.io/infra": "true"}
openshift_metrics_cassandra_nodeselector={"node-role.kubernetes.io/infra": "true"}
openshift_metrics_heapster_nodeselector={"node-role.kubernetes.io/infra": "true"}

# logging
openshift_logging_install_logging=True
openshift_logging_es_pvc_dynamic=true
openshift_logging_storage_volume_size=1Gi
openshift_logging_kibana_nodeselector={"node-role.kubernetes.io/infra": "true"}
openshift_logging_curator_nodeselector={"node-role.kubernetes.io/infra": "true"}
openshift_logging_es_nodeselector={"node-role.kubernetes.io/infra": "true"}

Then, you will need to run the config.yml playbook for both openshift-metrics and openshift-logging.