Technology
Multi-Region Traffic Steering and Failover Discipline with GSLB
Traffic steering discipline for multi-region services using GSLB, built around health signals, hold-down, and controlled failback.
#runbook
23 posts found.
Career
Post-Change Verification Cadence: Smoke, SLO, and Rollback
Assuming the release is done is how you summon an incident. A practical framework for turning post-change verification into a cadence: fast smoke checks…
Technology
BGP Traffic Engineering Runbook for the Enterprise Edge
A practical runbook for steering traffic with localpref, community, prepend, and MED in multi-ISP and multi-POP environments — measurable and reversible.
Tutorials
Kubernetes Control Plane Certificate Expiry: A Runbook
When API Server access suddenly breaks with x509 errors; certificate renewal and safe recovery steps for kubeadm-based clusters.
Tutorials
Linux SoftIRQ Saturation and IRQ Affinity Runbook
Quick triage, measurement and safe tuning steps (ring, queue, IRQ, RPS) under packet drops, high softirq load and ksoftirqd pressure.
Tutorials
PostgreSQL HA: Failover Runbook with Patroni
Walks through quorum, replication lag, switchover/failover testing and recovery steps when running PostgreSQL high availability with Patroni, in runbook form.
Tutorials
Zero-Downtime Restart with systemd Socket Activation
A runbook for shrinking deploy impact by separating connection acceptance into a socket unit, so the listening port never drops during service restarts.
Tutorials
vSphere/ESXi Host Patch: Maintenance Wave and Rollback Runbook
Manage the ESXi host patch process with ring-based maintenance waves, control capacity/HA risk, and establish safe remediation and rollback discipline.
Career
Operational Readiness Review (ORR) Before Go-Live
Turning go-live from 'ship and pray' into something with clear risk, ownership, and rollback reflex: a practical ORR gate and checklist.
Tutorials
Kubernetes RBAC: Least Privilege + Break-Glass Model
A practical RBAC framework for role design, identity integration, and time-boxed emergency access (break-glass) without depending on cluster-admin.
Tutorials
A Maintenance-Wave Runbook for Firmware Upgrades on Enterprise…
A runbook that turns firmware upgrade work into a repeatable maintenance rhythm with inventory, ring/wave approach, validation metrics, and a rollback…
Tutorials
Kubernetes Admission Webhook Timeouts: A Runbook for Frozen Deploys
Field runbook to rapidly triage hung deploys caused by Validating/Mutating webhook latency and apply a risk-controlled mitigation.
Tutorials
Kubernetes ETCD Quorum Loss: Triage and Recovery Runbook
A runbook for quickly diagnosing ETCD quorum during API 5xx/timeout storms and walking through safe recovery steps via snapshot restore.
Career
Evidence Collection Kit and Roles During an Incident
An evidence set, time standard, role assignment, and practical checklist to break the panic-driven 'SSH into one server' reflex.
Career
Minimum Viable Runbook Template and Incident Decision Points
A minimum template, thresholds, and practical examples for turning the runbook from a documentation pile into a tool that produces decisions during an incident.
Career
On-Call Rotation and Escalation Design: Operational Calm
Realistic on-call, escalation, and runbook design that reduces pager fatigue, speeds up decision-making, and clarifies incident communication.
Technology
DDoS Response Runbook with BGP RTBH and FlowSpec
A controlled approach to reducing DDoS impact during operations using an RTBH/FlowSpec decision tree, verification steps, and a rollback plan.
Tutorials
Operational Runbook for JWKS Key Rotation
A runbook to triage the 401 wave (kid mismatch/JWKS cache) that occurs during JWT key rotation, and to set up safe overlap/caching strategy.
Tutorials
Linux Conntrack Capacity Planning and Alerting Runbook
A practical guide for generating signals before the nf_conntrack table fills up, applying safe sysctl tuning, and recovering in a controlled way during an…
Tutorials
Linux TCP Backlog and SYN Flood Resilience Runbook
A runbook to triage the connect timeout crisis when the SYN backlog/accept queue fills up, apply rapid mitigation, and design lasting resilience.
Tutorials
High Availability and Split-Brain Runbook with Redis Sentinel
A field-ready runbook for operationally managing quorum, failover, and split-brain risk in a Redis Sentinel-based HA setup.
Tutorials
Cgroup v2 Memory Pressure Runbook with systemd-oomd
PSI, systemd-oomd policy, testing, and recovery steps to catch a node OOM crisis early and evict workloads in a controlled way.
Career
Runbook Debt Management for Senior Engineers
A technical leadership approach to runbook debt management that moves operational memory off individuals and onto the system.