Seamless Deployment: Blue/Green vs Canary Trade-off Analysis
This post provides a technical deep dive into Blue/Green and Canary seamless deployment strategies, examining their trade-offs and real-world applications.
31 posts found.
This post provides a technical deep dive into Blue/Green and Canary seamless deployment strategies, examining their trade-offs and real-world applications.
I share my experiences on the administrative burden, performance losses, and practical alternatives of VLAN segmentation in small-scale networks.
Does using self-hosted runners in CI/CD processes truly save money? I compared hidden costs, hardware resources, and operational overhead.
Based on my hands-on field experience, I compare GitOps and push-based CI/CD approaches. Which one should we choose for different scenarios?
I explain how I strike a balance between performance and security when moving from a flat network to VLAN segmentation, sharing technical details from my field.
A deep look at how load balancer (Load Balancer) misconfigurations affect system performance and the issues that cause traffic to get misrouted.
The operational crises I keep running into when I manage cloud infrastructure with GitOps — and the patterns that have helped me avoid the worst of them.
An operating model for the BMC (iDRAC/iLO/IPMI) attack surface using segmentation, identity, audit, and break-glass to keep it secure and auditable.
Choosing the right path for application classes via active probes that measure latency/jitter/loss; rapid diagnosis during degradation and a controlled…
When API Server access suddenly breaks with x509 errors; certificate renewal and safe recovery steps for kubeadm-based clusters.
A golden image approach that hardens and tests the server image at build-time, accelerating patch, drift and emergency CVE workflows.
Balancing safety and speed in IaC: a guide to managing prod changes through plan/apply separation, drift detection, policy-as-code, and approval flows.
Manage the ESXi host patch process with ring-based maintenance waves, control capacity/HA risk, and establish safe remediation and rollback discipline.
Beyond installing Ceph: an architectural approach to failure domain, capacity, and recovery behavior so the cluster can actually heal during a fault.
An architectural, security-focused, and operational view of NTP/PTP for distributed systems where TLS, log correlation, and consistency depend on accurate time.
Managing kernel security patches without reboot pressure: a live-patch approach, the risks, a ring strategy, and operational discipline.
A practical chrony runbook for enterprise servers covering secure NTP (NTS), access restrictions, verification commands, and alarm thresholds.
A runbook that turns firmware upgrade work into a repeatable maintenance rhythm with inventory, ring/wave approach, validation metrics, and a rollback…
Practical steps for building a WORM (Write Once Read Many) layer against ransomware and accidental deletion using S3 Object Lock, retention policies, and…
An approach for placing the in-house DNS resolver tier near the POP/branch using Anycast — cutting latency while improving operability.
A practical model for making the trust chain from firmware to kernel measurable, without locking operations down in the process.
Chrony settings, firewall recommendations, and drift/loss alarms to design a hierarchical and secure time synchronization.
A field-ready runbook for operationally managing quorum, failover, and split-brain risk in a Redis Sentinel-based HA setup.
Set up a policy-based routing layout on Linux servers with Netplan that separates primary and secondary uplinks based on source network.
A clean guide for separating resolution traffic across enterprise segments by configuring cache, forwarder, and access control with Unbound.
A central secret key distribution architecture that reduces the burden of secret handling across ERP integrations and batch flows.
An architectural roadmap for moving from layered bottleneck designs to an L3 Clos fabric in growing data center networks.
The fundamentals of building a realistic active-passive recovery model for ERP systems, covering data consistency, network routing, and operational roles.
A framework for treating the DNS layer as a service routing and resilience control point, not just a name resolution service.
A NetBox approach for moving the network address plan and data center inventory out of ticket spreadsheets and into an automation-friendly model.
A guide to managing privileged access safely by using short-lived certificates instead of permanent SSH keys.