OpenShift 9. Exam Preparation and Tips Use your time wisely Use the help resources and the documentation provided Look for command examples on the documenation
RHCS in OpenShift Administration 8. Redhat Openshift Q&A OpenShift Online 3 Questions and AnswersGet answers to some of the most frequent questions about OpenShift Online 3 that we’ve noticed in ticket-based technical support, Stack Overflow questions, and in discussions with customers over the pJiri Fiala
Linux Certifications 7. Configure cluster scaling Manually control the number of cluster workers To view the machinesets ( group of machines) $ oc get machinesets -n openshift-machine-api To Manually scale machineset option 1 specify the number of replicas $ oc scale --replicas=2 machineset (oooooo) -n openshift-machine-api $ oc get nodes To manually scale the machineset option 2 by editing
Linux Certifications 6. Configure pod scheduling Limit resource usage Resournce Quota definition $ oc create -f filename -n projectname $ oc create quota $ oc get quota Scale applications to meet increased demand Control pod placement across cluster nodes
Linux Certifications 5.Configure networking components Troubleshoot software defined networking Create and edit external routes Control cluster network ingress Create a self signed certificate Secure routes using TLS certificates
Linux Certifications 4.Control access to resources Define role-based access controls Apply permissions to users Create and apply secrets to manage sensitive information Create service accounts and apply permissions using security context constraints
Linux Certifications 3. Manage users & Policies Configure the HTPasswd identity provider for authentication Create or update your htpasswd file $ htpasswd -c -B -b /../..file username password Update credentials $ htpasswd -b /.././file username password $ oc create secret generic htpass-secret --from-file=htpasswd=/../../../file -n openshift-config Create and delete users Modify user passwords Modify user and group permissions Create
RHCS in OpenShift Administration 2. Manage OpenShift Container Platform Use the command-line interface to manage and configure an OpenShift cluster Use the web console to manage and configure an OpenShift cluster Create and delete projects Import, export, and configure Kubernetes resources Examine resources and cluster status View logs Monitor cluster events and alerts Troubleshoot common cluster events and alerts
RHCS in OpenShift Administration 1. About RHCS in in OpenShift Administration Login or use your created account to download the openshift packages to your Linux box. Please note that your virtualbox or vmware workstation should be updated with the following settings: 1. Enable processor virtualization 2. Ensure your virtual machine has at least 40 GB disk and 10 GB RAM assigned