--- title: "#devopscommunity articles | Hashnode" description: "Explore 2,817 articles tagged #devopscommunity on Hashnode. Tutorials, guides, and how-tos from the community." url: "https://hashnode.com/tag/devopscommunity" --- Tag # #devopscommunity 2,817 posts · 1,469 followers [Hritik ranjan](https://hashnode.com/@luvranjan143) · [4d ago](https://hashnode.com/posts/devops-learning-tracker-kubernetes-minikube/6af1830a97c64d348b05898b) ### [Building a Three-Tier DevOps Learning Tracker on Kubernetes with Minikube — Complete End-to-End Guide](https://blogs.hritikranjan.in/devops-learning-tracker-kubernetes-minikube?utm_source=hashnode&utm_medium=feed) From Docker Compose to Kubernetes — Architecture, Deployment, Persistent Storage, Real Troubleshooting, Bugs, Fixes, and DevOps Interview Learnings 53 min read · [blogs.hritikranjan.in](https://blogs.hritikranjan.in/devops-learning-tracker-kubernetes-minikube?utm_source=hashnode&utm_medium=feed) [Hritik ranjan](https://hashnode.com/@luvranjan143) · [Nov 1](https://hashnode.com/posts/devtrack-learning-tracker/6ae74572a6e680ddca17e979) ### [🚀 DevTrack: Building a Three-Tier DevOps Learning Tracker with Docker, Flask, MySQL & Nginx](https://blogs.hritikranjan.in/devtrack-learning-tracker?utm_source=hashnode&utm_medium=feed) A beginner-friendly, hands-on DevOps project demonstrating Docker, Docker Compose, container networking, persistent storage, health checks, environment variables, Nginx reverse proxy, CRUD APIs, and real-world troubleshooting. 43 min read · [blogs.hritikranjan.in](https://blogs.hritikranjan.in/devtrack-learning-tracker?utm_source=hashnode&utm_medium=feed) [1](https://hashnode.com/posts/devtrack-learning-tracker/6ae74572a6e680ddca17e979) [Cruxtab Technologies Pvt. Ltd.](https://hashnode.com/@cruxtab) · [Oct 31](https://hashnode.com/posts/responding-to-an-exposed-google-api-key-in-a-git-repository/6ae5cd88765e6a14f19ad94b) ### [Responding to an Exposed Google API Key in a Git Repository](https://cruxtab-technologies.hashnode.dev/responding-to-an-exposed-google-api-key-in-a-git-repository?utm_source=hashnode&utm_medium=feed) Learn how to remediate an exposed Google API key by rotating credentials, applying restrictions, cleaning Git history, and implementing secret scanning. 4 min read · [cruxtab-technologies.hashnode.dev](https://cruxtab-technologies.hashnode.dev/responding-to-an-exposed-google-api-key-in-a-git-repository?utm_source=hashnode&utm_medium=feed) [Cruxtab Technologies Pvt. Ltd.](https://hashnode.com/@cruxtab) · [Oct 29](https://hashnode.com/posts/why-shopify-webhook-registration-matters-as-much-as-the-handler/6ae2dbccaee5360bb7513b29) ### [Why Shopify Webhook Registration Matters as Much as the Handler](https://cruxtab-technologies.hashnode.dev/why-shopify-webhook-registration-matters-as-much-as-the-handler?utm_source=hashnode&utm_medium=feed) Learn the difference between Shopify webhook handlers and subscriptions, how to verify event registration, and how to test actual delivery. 3 min read · [cruxtab-technologies.hashnode.dev](https://cruxtab-technologies.hashnode.dev/why-shopify-webhook-registration-matters-as-much-as-the-handler?utm_source=hashnode&utm_medium=feed) [George Ezejiofor](https://hashnode.com/@georgeezejiofor) · [Oct 17](https://hashnode.com/posts/brownfield-kubeflow-rke2-keycloak-ceph-cnpg/6ad3c522ea2a6916603a307c) ### [Brownfield Kubeflow on RKE2: Swapping Dex & SeaweedFS for Keycloak & Ceph RGW](https://georgeezejiofor.com/brownfield-kubeflow-rke2-keycloak-ceph-cnpg?utm_source=hashnode&utm_medium=feed) Upstream Kubeflow assumes a greenfield cluster and ships its own Dex, SeaweedFS and MySQL, with its own oauth2-proxy in front. My homelab already had better versions of most of those. This is the brow 50 min read · [georgeezejiofor.com](https://georgeezejiofor.com/brownfield-kubeflow-rke2-keycloak-ceph-cnpg?utm_source=hashnode&utm_medium=feed) [2](https://hashnode.com/posts/brownfield-kubeflow-rke2-keycloak-ceph-cnpg/6ad3c522ea2a6916603a307c) [George Ezejiofor](https://hashnode.com/@georgeezejiofor) · [Oct 12](https://hashnode.com/posts/cilium-hubble-microservice-traffic-flow-ebpf/6acd45604ca43fb637c06c76) ### [Cilium Hubble on RKE2: Microservice Traffic Observability (Seeing the Invisible)](https://georgeezejiofor.com/cilium-hubble-microservice-traffic-flow-ebpf?utm_source=hashnode&utm_medium=feed) Cilium Hubble on RKE2: Microservice Traffic Observability (Seeing the Invisible) 19 min read · [georgeezejiofor.com](https://georgeezejiofor.com/cilium-hubble-microservice-traffic-flow-ebpf?utm_source=hashnode&utm_medium=feed) [George Ezejiofor](https://hashnode.com/@georgeezejiofor) · [Oct 10](https://hashnode.com/posts/hashicorp-vault-homelab-single-source-of-secrets/6aca81e787ad6fce788d15c9) ### [HA HashiCorp Vault: Single Source of Secrets on RKE2 Homelab (The secured Safe)](https://georgeezejiofor.com/hashicorp-vault-homelab-single-source-of-secrets?utm_source=hashnode&utm_medium=feed) HA HashiCorp Vault: Single Source of Secrets on RKE2 Homelab (The secured Safe) 21 min read · [georgeezejiofor.com](https://georgeezejiofor.com/hashicorp-vault-homelab-single-source-of-secrets?utm_source=hashnode&utm_medium=feed) [Hritik ranjan](https://hashnode.com/@luvranjan143) · [Oct 10](https://hashnode.com/posts/steganovault-with-docker/6aca37433062f4ccd4cf56b5) ### [🔐 Building SteganoVault: A Production-Grade Steganography Tool with Docker, Flask, MySQL, and Nginx](https://blogs.hritikranjan.in/steganovault-with-docker?utm_source=hashnode&utm_medium=feed) I built SteganoVault, a full-stack steganography platform that can hide secret messages inside images, text files, PDFs, DOCX documents, audio, and video. The application runs as a 4-container Docker Compose architecture using Flask, Gunicorn, MySQL, Nginx, and phpMyAdmin. Along the way, I worked with Docker networking, health checks, persistent volumes, reverse proxy configuration, Git, Docker Hub, image optimization, authentication, file processing, and frontend debugging. The interesting part was not just building the application. The interesting part was debugging it. I faced 18 real issues, including package compatibility problems, port conflicts, broken frontend files, browser caching, MySQL health-check failures, Docker Hub upload failures, IPv6 networking problems, OpenCV download failures, multi-stage Docker problems, health-check loops, and a 1.97 GB Docker image that I eventually reduced to 847 MB. This article documents the complete journey. 54 min read · [blogs.hritikranjan.in](https://blogs.hritikranjan.in/steganovault-with-docker?utm_source=hashnode&utm_medium=feed) [Hritik ranjan](https://hashnode.com/@luvranjan143) · [Sep 26](https://hashnode.com/posts/kubernetes-kind-minikube-guide/6ab7f270ced83db271e5eced) ### [Kubernetes Local Installation Guide for Beginners: KIND & Minikube Step-by-Step](https://blogs.hritikranjan.in/kubernetes-kind-minikube-guide?utm_source=hashnode&utm_medium=feed) If you are learning Kubernetes, DevOps, Docker, or Cloud, one of the first things you need is a Kubernetes cluster where you can practice without spending money on AWS or other cloud platforms. 40 min read · [blogs.hritikranjan.in](https://blogs.hritikranjan.in/kubernetes-kind-minikube-guide?utm_source=hashnode&utm_medium=feed) [1](https://hashnode.com/posts/kubernetes-kind-minikube-guide/6ab7f270ced83db271e5eced) [George Ezejiofor](https://hashnode.com/@georgeezejiofor) · [Sep 23](https://hashnode.com/posts/build-scan-sign-cicd-supply-chain-rke2/6ab40e8d7152d465392e25fc) ### [Tekton, Cosign, Kyverno: A Signed CI/CD Supply Chain on RKE2](https://georgeezejiofor.com/build-scan-sign-cicd-supply-chain-rke2?utm_source=hashnode&utm_medium=feed) Every gate in this pipeline has been shown refusing something 26 min read · [georgeezejiofor.com](https://georgeezejiofor.com/build-scan-sign-cicd-supply-chain-rke2?utm_source=hashnode&utm_medium=feed)