Observed Signal · Aug 13, 2026 · Tutorial · Source: DEV Community · Impact: 1/5 · Sentiment: Neutral
End-to-End Containerized Deployment on AWS
A hands-on tutorial describing an end-to-end containerisation and deployment workflow: the author built a simple HTML web app, created a Dockerfile using the nginx base image, built a Docker image, tested it on an EC2 instance, pushed the image to Docker Hub, and deployed it to a Kubernetes Pod exposed via a NodePort service. The post documents command examples (docker build/run, docker push, kubectl apply) and the deployment flow from local files to a running container reachable through an EC2 public IP and nodePort (example: 30080). The author lists next learning steps including Deployments, ReplicaSets, Ingress, Secrets, autoscaling, CI/CD with GitHub Actions, and migrating to AWS EKS.
Introductory hands-on tutorial on Docker and Kubernetes deployment; technically useful but low impact for the AdTech industry at large.
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Key Takeaways & Evidence Grounding
- Author packaged a simple index.html into a Docker image using a Dockerfile based on nginx:latest.
- An Amazon EC2 instance was used as the Linux host for building and testing the container.
- The Docker image was tagged and pushed to Docker Hub for distribution.
- The image was deployed to Kubernetes as a Pod and exposed externally using a NodePort service (nodePort example: 30080).
- Commands demonstrated include docker build, docker run, docker tag, docker push, and kubectl apply/get.
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Blue-Green Deployment Pipeline on AWS EKS
A hands-on walkthrough demonstrating how to build a blue-green deployment pipeline on AWS EKS using Ubuntu and a terminal. The author provides exact commands, Kubernetes manifests, a multi-stage Dockerfile, and a GitHub Actions workflow that automates building, pushing to Amazon ECR, deploying to an idle environment, performing an internal health check, and switching traffic by patching the Service selector. The pipeline averages 29 seconds end-to-end, the traffic switch is under one second, and rollback under five seconds. The article also documents practical AWS-specific fixes (ELB hostnames, ECR node IAM policy), debugging tips, and a public repository (github.com/gbadedata/zero-downtime-bluegreen-eks). Recommended next steps include Prometheus/Grafana, canary releases, Terraform, and automated rollback triggers.
Docker for DataOps: From Local Scripts to Cloud Servers
A DEV Community tutorial by Cliffe Okoth (published 2026-05-12) explains how Docker and Docker Compose can be used to ensure environment consistency for DataOps projects. Using an example NBA analytics pipeline, the article shows how to containerize an Apache Airflow orchestrator (pinned to apache/airflow:2.10.0-python3.10), install system tools and Python dependencies via a Dockerfile, copy dbt models into the image, and run multiple services (Postgres, Airflow webserver, scheduler) with a docker-compose.yml. The piece highlights benefits of containers for portability across environments (laptop, Azure VM, AWS) and provides concrete commands (docker compose up -d) and Dockerfile/docker-compose examples to reproduce the setup.
WordPress Hosting on VPS with Docker and CI/CD
A developer guide demonstrating how to host a WordPress site on a VPS using Hetzner. The tutorial contrasts VPS costs with an AWS EC2 t3.small estimate, then walks through provisioning an Ubuntu server (cloud-init), installing Docker and Docker Compose, deploying WordPress and MariaDB containers, and configuring NGINX as the web server. It includes examples for environment/secrets handling, Docker Compose logging and healthchecks, NGINX configurations (rate limiting, security headers, PHP-FPM forwarding), GitHub Actions-based CI/CD to deploy changes via SSH, SSL provisioning with Certbot (Let's Encrypt), DNS/domain setup, and automated database backup scripts. The post emphasizes cost-efficiency and maintainability for small projects and lists production hardening steps for moving to a domain and HTTPS.
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