Technical requirements
In this chapter, we will practice with OpenShift deployed on the VM managed by Vagrant. The last section on auto-scaling requires Hawkular metrics to be enabled, so you will have to install OpenShift with openshift_metrics_install_metrics Ansible variable. The metrics collector and dashboard are deployed in their own pods, so we will also need to provide the VM with more RAM. Use the following Vagrantfile to deploy the lab:
$ cat Vagrantfile $lab_openshift = <<SCRIPT yum -y update yum install -y epel-release git docker httpd-tools java-1.8.0-openjdk-headless yum install -y ansible python-passlib systemctl start docker systemctl enable docker git clone -b release-3.9 https://github.com/openshift/openshift-ansible /root/openshift-ansible ssh-keygen -f /root/.ssh/id_rsa -N '' cp /root/.ssh/id_rsa.pub /root/.ssh/authorized_keys ssh-keyscan 172.24.0.11 >> .ssh/known_hosts cp .ssh/known_hosts /root/.ssh/known_hosts ssh-copy-id -i /root/.ssh/id_rsa [email protected]...
