OpenShift
What is Hosted OpenShift Cluster
Gineesh MadapparambathRed Hat OpenShift is the well known enterprise Kubernetes distribution and it is a platform with ready-to use features, compared to the default …
OpenShift 4: Query Prometheus API for Firing Alert
Muhammad Aizuddin ZaliIntroduction Prometheus is a robust, efficient and cloud native monitoring tools, graduated from CNCF incubator. It was part of the OpenShift since …
OpenShift 4.5 KNI Labs (Step-by-step)
KNI, Kubernetes Native Infrastructure is one of the method deploying OpenShift baremetal with IPI (Installer Provided Infrastructure), yes you read it …
OpenShift 4.5 : NooBaa S3 Bucket for internal image registry
Image registry storage is best and recommended to run on S3 storage endpoint(then filesystem storage, then block). In this blog context, we are going …
10 Tips for your Kubernetes Exam – CKA & CKAD
Since Kubernetes is getting wide acceptance, Kubernetes Certification is one of the most trending certifications in the IT circle now; both Certified …
OpenShift 4: OSSM Jaeger`s External ElasticSearch
One of the features provided by Red Hat OpenShift Service Mesh(OSSM) is tracing capability. This capability is provided by Jaeger, an OpenTracing …
OpenShift 4: EgressIP for egress(outbound) connection
Introduction By default, all namespace egress networking will be using host IP where the pod sits as SNAT rule, similar to how our home router...
Start Your OpenShift journey with OpenShift Interactive Learning Portal – FREE
Update: O’Reilly has closed the public access of Katakoda labs. Please use the following resources1. Interactive labs for Red Hat OpenShift – Free …
OpenShift 4: AlertManager + Slack Configuration
Objective Sending alert to Slack and defined proper channel for each alert type. Pre-Requisites: Three channels created in slack #watchdog …
OpenShift 4: Installation Bonding Setup
Objective Setting up 2 x LACP bonding using boot params options. For guidance on the boot params available look here. (Cover image : 2 x...
Replacing a Failed Master Host on OCP 4.3.x
Abip SjarbiniThis procedure assumes that there is still an etcd quorum in the cluster. If you have lost the majority of your master hosts, leading to...
Perform etcd Backup for Restricted Environment on OCP 4.3.x
Etcd is the key-value store for OpenShift Container Platform, which persists the state of all resource objects.Back up your cluster’s etcd data …