day2-operations

OpenStack production troubleshooting and Day-2 operations: investigation paths by command and by symptom, an index by error message, anonymised incident RCAs, change and rollback methodology. Companion to the book OpenStack, the Day After Tomorrow.

Ansible-driven disconnected OpenShift 4 lab on one bare-metal host: nested KVM, OVS segmentation, IdM/AD/Keycloak auth, agent-based install, and day-2 automation

OpenShift 4.20 installation (Day 0/1/2) & architecture matrix across bare metal, hypervisors, cloud & air-gap. AI-generated with Gemini 3.8 Flash; not yet tested on live clusters, serves as an architecture reference.

Agent harness pattern for Cloud RAN Day-2 closed-loop remediation. nGRG Workshop, June 2026. Stub-first declarative artifact set with reference OMC operationalization.

The Rack2Cloud Method failure signature library. Diagnostic protocols for Identity, Compute, Network, and Storage loops.

Automated Day-0 and Day-1 OpenShift cluster bootstrapping and configuration scripts

Day-2 operations dashboard for CloudNativePG — live cluster health, backup management, and guided restore workflows

Production-ready GitOps framework for provisioning and configuring OpenShift clusters at scale using ACM, ArgoCD, and Helm