Deploying Apache Airflow to Production
Run Airflow in production with Docker Compose, Helm on Kubernetes, or managed services. Covers monitoring, logging, security, and database backends.
·12 min read · #airflow#deployment#docker
#docker
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Deploying Astro: Vercel, Netlify, Cloudflare, and Docker
A practical guide to deploying Astro projects across major platforms: adapter configuration, environment variables, build settings, and platform-specific gotchas.
·7 min read · #astro#deployment#vercel
Building Custom GitHub Actions: JavaScript, Docker & Composite
Create your own GitHub Actions from scratch using JavaScript, Docker containers, and composite steps. Includes publishing to the marketplace.
·8 min read · #cicd#github-actions#custom-actions
Docker vs Podman: Which Container Runtime to Use
Compare Docker and Podman on architecture, security, compatibility, and developer experience. Learn which container runtime fits your workflow in 2026.
·8 min read · #docker#podman#containers
CI/CD Artifact Management: Build, Store, and Promote
Learn how to manage build artifacts in CI/CD pipelines including versioning, storage, promotion strategies, and cleanup policies.
·7 min read · #cicd#artifacts#docker
Optimize Docker Builds in CI/CD Pipelines
Speed up Docker builds in CI/CD — multi-stage builds, layer caching, BuildKit, registry caching, and slim base images for faster deployments.
·5 min read · #cicd#docker#optimization
Docker Compose Watch: Hot Reload for Containers
Learn how to use Docker Compose Watch to automatically sync file changes and rebuild containers during development. Faster feedback loops without manual restarts.
·7 min read · #docker#docker-compose#hot-reload
Docker Init: Generate Dockerfiles Automatically
Learn how to use docker init to scaffold Dockerfiles, Compose files, and .dockerignore for your projects in seconds. Supports Node.js, Python, Go, Rust, and more.
·7 min read · #docker#dockerfile#docker-init
Docker Scout: Find and Fix Image Vulnerabilities
Learn how to use Docker Scout to scan container images for CVEs, analyze software dependencies, and get actionable remediation advice directly from the CLI.
·7 min read · #docker#docker-scout#security
Building Slim Docker Images: From 1GB to 50MB
Practical techniques to reduce Docker image size by 90% or more. Covers multi-stage builds, Alpine and distroless bases, layer optimization, and dependency management.
·8 min read · #docker#optimization#multi-stage-builds
Container Image Optimization Techniques
Reduce Docker image size and build time with multi-stage builds, layer caching, distroless bases, and practical Dockerfile patterns.
·5 min read · #devops#docker#containers
Docker BuildKit Advanced Features You Should Be Using
Master BuildKit's cache mounts, secret mounts, SSH forwarding, and parallel builds to speed up Docker image creation and keep secrets out of layers.
·6 min read · #docker#buildkit#performance
Docker Entrypoint Patterns and Init Process Handling
Master ENTRYPOINT vs CMD, entrypoint scripts, signal handling, and init processes to build containers that start and stop reliably.
·6 min read · #docker#entrypoint#signals
Docker Logging Drivers and Container Monitoring
Configure Docker logging drivers to route container logs to files, syslog, or centralized systems. Includes monitoring with Prometheus and cAdvisor.
·5 min read · #docker#logging#monitoring
Docker Security Scanning with Trivy
Use Trivy to find vulnerabilities in Docker images, Dockerfiles, and IaC before they reach production. Includes CI pipeline integration examples.
·5 min read · #docker#trivy#security
Docker tmpfs Mounts and In-Memory Storage
Use Docker tmpfs mounts to store sensitive or ephemeral data in memory, keeping it off disk and out of container layers entirely.
·6 min read · #docker#tmpfs#storage
Production Deployment of FastAPI with Docker and Gunicorn
Deploy FastAPI to production with Docker, Gunicorn, Uvicorn workers, health checks, multi-stage builds, and best practices.
·6 min read · #fastapi#docker#gunicorn
Docker Compose Patterns for Production
Production-ready Docker Compose patterns: override files, healthchecks, resource limits, logging, and secrets management.
·5 min read · #docker#docker-compose#production
Docker Layer Caching Strategies to Speed Up Builds
Master Docker layer caching: instruction ordering, cache mounts, BuildKit inline cache, and CI registry caching for faster builds.
·6 min read · #docker#caching#performance
Docker Multi-Stage Builds: Advanced Optimization Techniques
Go beyond basic multi-stage builds. Learn cache mounts, parallel stages, and distroless bases to shrink Docker images by 90%.
·6 min read · #docker#multi-stage-builds#optimization
Dockerfile Best Practices
Write production-ready Dockerfiles: layer caching, multi-stage builds, .dockerignore, security hardening, slim base images, and patterns that keep builds fast and images small.
·7 min read · #docker#dockerfile#intermediate
Docker Volumes and Persistent Storage
Manage persistent data in Docker — named volumes, bind mounts, tmpfs, backup strategies, and volume drivers for production.
·3 min read · #docker#storage#beginners
Docker Multi-stage Builds Explained
How Docker multi-stage builds work, why they shrink images dramatically, and patterns for Python, Node, and Go services that need a clean runtime layer.
·5 min read · #docker#containers#ci-cd
Docker Build Context and .dockerignore Tips
Why your Docker builds are slow and your images are bloated, and how to fix both with a tight build context and a thoughtful .dockerignore.
·4 min read · #docker#dockerfile#dockerignore
Docker Buildx and Multi-Arch Images: amd64 plus arm64
Build container images that run on both x86 and ARM with Docker Buildx, QEMU, and registry manifests, without doubling your CI complexity.
·4 min read · #docker#buildx#arm64
Docker Compose Network Aliases Tutorial
Network aliases let containers reach each other under multiple names. Learn how aliases work in Compose, when to use them, and the gotchas to avoid.
·5 min read · #docker#docker-compose#networking
Docker Compose Profiles Tutorial: Optional Services Done Right
Use Docker Compose profiles to start only the services you need. Learn the syntax, common patterns, and pitfalls when mixing profiles with depends_on.
·4 min read · #docker#compose#profiles
Docker Compose vs Kubernetes: When to Use Which
A pragmatic comparison of Docker Compose and Kubernetes covering scope, operational cost, and the signals that tell you it is time to graduate.
·4 min read · #docker#kubernetes#compose
Docker Healthchecks and Restart Policies Explained
Healthchecks tell Docker if a container is alive. Restart policies tell it what to do when it is not. Together they keep your services running.
·5 min read · #docker#devops#containers
Docker Image Cleanup and Prune: Reclaim Disk Without Tears
Disk full from Docker? Learn what fills up, which prune commands are safe, and how to automate cleanup so /var/lib/docker stops eating your machine.
·5 min read · #docker#prune#cleanup
Docker Image Layer Caching Strategies for Faster Builds
Learn how Docker's layer cache really works and the ordering tricks that turn a 5-minute build into a 20-second one without sacrificing correctness.
·4 min read · #docker#containers#build
Docker Networking: Bridge, Host, and Overlay Networks Explained
A clear guide to Docker's three most common network drivers, when to pick each one, and how packets actually flow between containers in real deployments.
·4 min read · #docker#containers#networking
Docker Security Best Practices for Production
Harden Docker images and runtimes: non-root users, minimal bases, secret handling, capability drops, and image signing - without making developers miserable.
·4 min read · #docker#security#containers
Docker Overlay Filesystem Explained: Layers, lowerdir, upperdir
How Docker's overlay2 storage driver stacks read-only image layers under a writable container layer. Learn the directory anatomy and the copy-on-write behavior.
·4 min read · #docker#overlayfs#storage
Docker Swarm vs Kubernetes: Which Orchestrator Fits You?
A practical comparison of Docker Swarm and Kubernetes. Understand their mental models, where each shines, common pitfalls, and how to choose for your team.
·4 min read · #docker#kubernetes#swarm
Docker Volumes vs Bind Mounts Explained
The practical differences between Docker volumes and bind mounts, when to pick each, and how to avoid the permission and performance traps.
·4 min read · #docker#volumes#bind-mounts
Docker Compose Tutorial: Run Multi-Service Apps Locally
A practical Docker Compose tutorial. Define services, networks, and volumes in one YAML file, then start and stop a full local stack with a single command.
·4 min read · #devops#docker#compose
Docker Volumes Explained: Persisting Data the Right Way
Learn how Docker volumes keep your data alive between container restarts. Compare bind mounts, named volumes, and tmpfs, and see when to use each in real projects.
·4 min read · #devops#docker#volumes
Docker Networking Basics: Bridges, Ports, and DNS
A practical guide to Docker networking: the default bridge, user-defined bridges, host networking, container DNS, and how port publishing actually works.
·6 min read · #docker#networking#intermediate
Docker: Environment Variables and Secrets
How to feed configuration into Docker containers without baking it into the image — ENV vs ARG, --env-file, Compose env, BuildKit secret mounts, and Docker Swarm secrets, with safe defaults.
·8 min read · #docker#intermediate#config
Docker Multi-Stage Builds for Smaller Images
Use Docker multi-stage builds to ship tiny production images — build with full toolchains, copy only the artifacts. Examples for Node and Go, with .dockerignore and size comparisons.
·9 min read · #docker#intermediate#optimization
Docker Compose for Multi-Container Apps
Learn Docker Compose by building a small two-service app — a web API and a Postgres database — defined in a single compose.yaml file and started with one command.
·8 min read · #docker#beginners#compose
Docker Images, Layers, and Volumes Explained
A practical deep dive into how Docker images are stored as layers, how the build cache works, and the real difference between bind mounts and named volumes.
·10 min read · #docker#beginners#images
Install Docker and Run Your First Container
A step-by-step setup guide for Docker on Windows, macOS, and Linux. Install the engine, verify it works, and run your first container in under fifteen minutes.
·8 min read · #docker#beginners#setup
Writing Your First Dockerfile
Learn how to write a Dockerfile from scratch. Understand each instruction, build a real image for a small Node application, and run it as a container.
·8 min read · #docker#beginners#dockerfile
What is Docker? A Complete Introduction for Beginners
A clear, no-hype introduction to Docker — what containers actually are, how they differ from virtual machines, and the vocabulary you need before installing anything.
·9 min read · #docker#beginners#containers