Migration on Support Tools

Kubernetes Beyond Docker: Migrating to containerd and What It Means for Your Clusters

Tue, 20 Oct 2026 09:00:00 -0500

Kubernetes has deprecated and removed Docker support, but this doesn’t mean containers are going away. In fact, this architectural shift towards direct integration with containerd represents a significant evolution in container orchestration. This guide explores what this change means for your clusters, how to prepare, and why this transition ultimately creates a more stable and efficient Kubernetes ecosystem.

Monolith to Microservices Migration: Real-World Go Architecture

Sat, 26 Sep 2026 00:00:00 -0500

“We need to scale the task management system, but the monolith is holding us back.” This statement kicked off a nine-month migration project that transformed a 150,000-line Go monolith into a distributed microservices architecture. The journey was challenging, filled with architectural decisions, technical challenges, and valuable lessons about when (and when not) to break apart a monolith.

This post chronicles that migration, from initial assessment through production deployment, including the architectural patterns, code examples, and hard-won lessons that made the difference between success and failure. If you’re considering a similar migration, this is the comprehensive guide I wish we’d had at the start.

Active Directory Domain Controller Migration: FSMO Transfer and SYSVOL Replication Enterprise Guide

Wed, 17 Jun 2026 00:00:00 -0500

Active Directory domain controller migration requires systematic planning and precise execution to maintain directory service availability during infrastructure transitions. This comprehensive guide covers domain controller deployment, FSMO role transfers, SYSVOL migration from FRS to DFSR, and production-ready decommissioning procedures.

Database Migration Patterns: Zero-Downtime Schema Changes in Production

Thu, 04 Jun 2026 00:00:00 -0500

Executive Summary

Zero-downtime database migrations are critical for maintaining service availability in production environments. This comprehensive guide explores proven patterns and strategies for implementing schema changes without service interruption, including blue-green deployments, expand-contract patterns, and automated migration tools.

Key Migration Strategies

Blue-Green Deployments: Parallel database environments enabling instant switchover with minimal risk and rapid rollback capabilities.

Expand-Contract Pattern: Gradual schema evolution maintaining backward compatibility throughout the migration process.

Version Compatibility: Multi-version support strategies ensuring seamless transitions between application and database versions.

Automated Tooling: Comparison of enterprise migration tools including Flyway, Liquibase, and custom solutions for different use cases.

Active Directory Domain Controller In-Place Upgrades: Adprep Forest and Domain Preparation Enterprise Guide

Tue, 17 Mar 2026 00:00:00 -0500

Active Directory domain controller upgrades require meticulous planning and systematic execution to maintain directory service integrity across enterprise forests. This comprehensive guide covers adprep preparation, supported upgrade paths, and production-ready procedures for Windows Server domain controller in-place upgrades.

Ingress-NGINX Retirement on RKE2: Migrating to Traefik Without Downtime

Wed, 04 Feb 2026 00:00:00 -0500

The Kubernetes community announced in November 2025 that Ingress-NGINX is being retired. Best-effort maintenance ended in March 2026, and there are no more releases, bug fixes or security patches from upstream. RKE2 shipped ingress-nginx as its default ingress controller until v1.36, so most existing RKE2 clusters still run it.

This post walks through the practical side of migrating RKE2 clusters from ingress-nginx to Traefik. The emphasis is on running both controllers side-by-side so you can migrate gradually without taking production offline.

From Docker Compose to Kubernetes: A Pragmatic Migration Guide

Tue, 13 Jan 2026 09:00:00 -0500

You’ve got a working Docker Compose setup, but it’s getting unwieldy as your application grows. Kubernetes offers the scaling and orchestration features you need, but the migration path seems daunting. This guide provides a pragmatic, no-nonsense approach to moving from Docker Compose to Kubernetes without rewriting your entire application stack.

Kubernetes 1.33 Comprehensive Production Guide: Enterprise Features, Performance Optimizations, and Migration Strategies

Thu, 12 Jun 2025 09:00:00 -0500

Executive Summary

Kubernetes 1.33 represents a significant milestone in container orchestration, introducing powerful enterprise features that address the complex requirements of large-scale production deployments. This comprehensive guide explores the critical features, performance optimizations, and migration strategies that enterprise teams need to successfully deploy and manage Kubernetes 1.33 in production environments.

Key Enterprise Enhancements

In-Place Pod Vertical Scaling: Revolutionary resource management capabilities that allow dynamic CPU and memory adjustments without pod restarts, reducing operational overhead and improving resource utilization efficiency.

Migrating from RKE1 to RKE2 Using pv-migrate: A Targeted Storage Migration Tool

Thu, 13 Mar 2025 01:49:00 -0500

With RKE1 reaching end-of-life on July 31, 2025, organizations need efficient solutions for migrating their persistent data to RKE2 clusters. For teams focused specifically on storage migration, pv-migrate offers a specialized, lightweight approach for transferring Persistent Volume Claims (PVCs) across clusters.

Migrating from RKE1 to RKE2 Using Longhorn DR Volumes: A Kubernetes-Native Approach

Thu, 13 Mar 2025 01:48:00 -0500

With RKE1 reaching its end-of-life on July 31, 2025, organizations running Longhorn for persistent storage have a powerful built-in option for migration to RKE2. Longhorn’s Disaster Recovery (DR) volumes provide a Kubernetes-native approach that synchronizes data directly between clusters for efficient, low-downtime migration.

Migrating from RKE1 to RKE2 Using Velero: An Open-Source Approach

Thu, 13 Mar 2025 01:45:00 -0500

With RKE1 approaching its end-of-life date on July 31, 2025, organizations need reliable migration strategies to transition to RKE2. Velero, an open-source backup and restore tool for Kubernetes, offers a cost-effective approach for this migration that works across diverse environments.

Migrating from RKE1 to RKE2 Using Kasten K10: A Complete Backup and Restore Guide

Thu, 13 Mar 2025 01:44:00 -0500

With RKE1’s end-of-life approaching on July 31, 2025, organizations need efficient strategies to migrate to RKE2. Kasten K10 by Veeam provides a powerful Kubernetes-native solution for this migration that handles both application state and data persistence.

Migrating from RKE1 to RKE2 Using CloudCasa: A Backup and Restore Approach

Thu, 13 Mar 2025 01:42:00 -0500

With RKE1 reaching end-of-life on July 31, 2025, organizations need reliable strategies to migrate their workloads to RKE2. CloudCasa offers a powerful backup and restore approach for this migration, providing a comprehensive solution that handles both stateless and stateful workloads.

Migrating from RKE1 to RKE2 using YAML Export/Import

Wed, 12 Mar 2025 00:00:00 -0500

Migrating from RKE1 to RKE2 can be done in multiple ways, and one of the simplest is YAML Export/Import. This method is ideal for stateless workloads where persistent storage migration is not required. It’s a fast and effective way to move Deployments, Services, ConfigMaps, and other Kubernetes resources with minimal dependencies.

Migrating from RKE1 to RKE2: A Seamless Transition with SUSE Rancher Prime

Wed, 12 Mar 2025 00:00:00 -0500

Migrating from RKE1 to RKE2 is an essential transition for organizations relying on Rancher-managed Kubernetes clusters. With RKE1 reaching end-of-life (EOL) on July 31, 2025, moving to RKE2 ensures ongoing support, security updates, and performance improvements.