February 22, 2026
Most ArgoCD problems fall into predictable categories: sync stuck in a bad state, resources showing OutOfSync when they should not be, health checks reporting wrong status, RBAC blocking operations, or repository connections failing. Here is how to diagnose and fix each one.
An application stuck in Progressing means ArgoCD is waiting for a resource to become healthy and it never does. The most common causes:
February 22, 2026
Building a container image and deploying it is the easy part. Keeping it patched over weeks, months, and years is where most teams fail. A container image deployed today with zero known vulnerabilities will accumulate CVEs as new vulnerabilities are disclosed against its OS packages, language runtime, and dependencies. You need an automated system that detects stale base images, triggers rebuilds, and rolls out updates safely.
February 21, 2026
The term “GitOps” is applied to everything from a simple kubectl apply in a GitHub Actions workflow to a fully reconciled, pull-based deployment architecture with drift detection. These are fundamentally different approaches. Choosing between them depends on your team’s operational maturity, cluster count, and tolerance for running controllers in your cluster.
GitOps, as defined by the OpenGitOps principles (a CNCF sandbox project), has four requirements: declarative desired state, state versioned in git, changes applied automatically, and continuous reconciliation with drift detection. The last two are what separate true GitOps from “CI/CD that uses git.”
February 21, 2026
GitOps is a deployment model where git is the source of truth for your cluster’s desired state. A controller running inside the cluster watches a git repository and continuously reconciles the live state to match what is declared in git. When you want to change something, you commit to git. The controller detects the change and applies it.
This replaces kubectl apply from laptops and CI pipelines with a pull-based model where the cluster pulls its own configuration. The benefits are an audit trail in git history, easy rollback via git revert, and drift detection when someone makes manual changes.
February 21, 2026
A single Kubernetes cluster is a single blast radius. A bad deployment, a control plane failure, a misconfigured admission webhook – any of these can take down everything. Multi-cluster is not about complexity for its own sake. It is about isolation, resilience, and operating workloads that span regions, regulations, or teams.
Blast radius isolation. A cluster-wide failure (etcd corruption, bad admission webhook, API server overload) only affects one cluster. Critical workloads in another cluster are untouched.
Production infrastructure rarely runs on a single cluster. You have staging, production, maybe a dedicated cluster for CI or data workloads. Minikube profiles let you run multiple independent Kubernetes clusters on one machine, each with its own version, resources, and addons. This is how you test multi-cluster workflows without cloud accounts.
A minikube profile is a fully independent cluster. Each profile has its own: