Choosing Between RollingUpdate and Recreate Deployments in OpenShift
Decide when to use RollingUpdate versus Recreate for OpenShift Deployments, then patch and validate the strategy.
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redhatOpenShift Internal Registry: Push, Pull, and Promote Images Without Rebuilding
Use OpenShift's built-in image registry for CI/CD: push once, promote tags with image streams, and avoid rebuilding images between environments.
Designing a Minimal, Trust‑Bound OLM Setup on OpenShift
A concise architecture note for the smallest production‑grade OLM deployment on OpenShift: required objects, trust boundaries, operational checks, failure modes, and redesign triggers.
Architecture Note: Enabling Mutual TLS for Service‑to‑Service Traffic in Red Hat OpenShift Service Mesh
Guidance on requirements, minimal design, trust boundaries, operational checks, failure scenarios and rollback when enabling Istio‑based mTLS in OpenShift Service Mesh.
Leveraging Red Hat OpenShift Service Mesh for Secure, Observable, and Resilient Microservices
Deploy Red Hat OpenShift Service Mesh using sidecar injection to secure, observe, and make microservices resilient. This architecture note covers requirements, design, trust boundaries, operational checks, failure modes, and when to change the design.
Choosing Between OpenShift SDN and OVN‑Kubernetes CNI in Red Hat OpenShift
Guide to selecting OpenShift SDN or OVN‑Kubernetes CNI for an OCP cluster, covering constraints, a feature table, trade‑offs, installation/migration steps, and validation commands.
OADP 1.3 CSI restore compatibility boundary when original StorageClass is unavailable
Context OpenShift API for Data Protection (OADP) 1.3 and later uses the Velero CSI plugin to back up and restore persistent volumes through CSI volume snapshots. The restore path expects the original VolumeSnapshotClass and its backing storage class to exist in the target cluster. Constraint When the original StorageClass is absent — for example during cross