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Running Ansible through SSH Jump / Bastion Host

Running Ansible through SSH Jump / Bastion Host

In a strict secured environment, you may not be allowed perform tasks freely. Only the bastion host (a.k.a jump host) is the one freely allowed to …

Self hosted runners for GitHub Actions

Self hosted runners for GitHub Actions

In this article, I will take you through setting up self hosted runners for GitHub Actions. It is similar to Azure Devops Pipelines Build Agents and …

OpenShift 4: OSSM Jaeger`s External ElasticSearch

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

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 works …

Start Your OpenShift journey with OpenShift Interactive Learning Portal – FREE

Start Your OpenShift journey with OpenShift Interactive Learning Portal – FREE

Cover Image : [@nickmorrison](https://unsplash.com/@nickmorrison) Update: O’Reilly has closed the public access of Katakoda labs. Please use the …

OpenShift 4: AlertManager + Slack Configuration

OpenShift 4: AlertManager + Slack Configuration

Objective Sending alert to Slack and defined proper channel for each alert type. Pre-Requisites:

OpenShift 4: Installation Bonding Setup

OpenShift 4: Installation Bonding Setup

Objective Setting up 2 x LACP bonding using boot params options. For guidance on the boot params available look …

Infrastructre & hardware

Replacing a Failed Master Host on OCP 4.3.x

This procedure assumes that there is still an etcd quorum in the cluster. If you have lost the majority of your master hosts, leading to etcd quorum …

Infrastructre & hardware

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 …

Install Grafana Operator on OpenShift Container Platform 4

Install Grafana Operator on OpenShift Container Platform 4

OpenShift Container Platform includes a pre-configured, pre-installed, and self-updating monitoring stack that is based on the Prometheus open source …

How to Install VMWare vCenter Server Appliance

How to Install VMWare vCenter Server Appliance

When we talk about virtualization, VMWare is one of the best choice and most popular in town. You can download VMware vSphere Hypervisor 6.7 for FREE …

OpenShift 4: DHCPD High Availability

OpenShift 4: DHCPD High Availability

Objective One of the support component to install OpenShift 4 is the DHCP . We need to ensure this DHCP is r esilient and highly available hence this …