#docker
Docker sounds complicated until you understand Image vs Container 🐳 🧊 Image = a read-only snapshot containing your app + runtime + dependencies. 📦 Container = a running instance of that image. For a real Node.js app, the basic Docker workflow is: 1️⃣ Install Docker Desktop / Docker Engine 2️⃣ Create a Dockerfile 3️⃣ Choose a base image with FROM 4️⃣ Set the working directory with WORKDIR 5️⃣ Copy dependencies first for better layer caching 6️⃣ Install them with RUN npm install 7️⃣ Copy your source code 8️⃣ Document the port with EXPOSE 9️⃣ Start the app with CMD 🔟 Build → docker build 1️⃣1️⃣ Run → docker run And don’t forget .dockerignore to keep things like node_modules and environment files out of your image. Build once. Run anywhere. Same environment every time. 🚀 #Docker #DockerContainers #DevOps #NodeJS #Containerization
algorithmswithpeter59,200 Aufrufe • vor 2 Monaten
Docker is trending after engineers proved containers don't actually exist in the Linux kernel—and Docker's founder confirmed it. A container is literally five kernel features in a trench coat: namespaces, cgroups, and pivot root. Running with privileged drops protections and grants effective host root. Even worse: Docker rewrites iptables, bypassing UFW firewalls and exposing published database ports to the internet unless you bind to 127.0.0.1. Did you think containers were actual VMs? #docker #devops #cybersecurity
bytesidekick16,100 Aufrufe • vor 20 Tagen
Docker is an awesome and important tool that is commonplace in the software engineering industry. It’s not something they often teach or mention in school, but knowing it is such a marketable skill. I attribute having knowledge of Docker, K8s, and containerization to landing my first software engineering role. Hopefully you find this video helpful! 🙌✨ #computerscience #softwareengineer #careerintech #cs #docker
tembrasdev76,400 Aufrufe • vor 8 Monaten
🐳 What is Docker? Explained in less than 60 seconds. Docker = run your app in containers that work anywhere. Same code, same environment, less drama. ➡️ Follow us for more DevSecOps, container security, and automation tips! Shorts every week 🎯 📌 Music: "Streamline" by Harris Heller 🎵 StreamBeats by Harris Heller 🎧 --- #Docker #Containers #DevSecOps #CloudNative #AppDeployment #ShellAndShield #TechShorts #InfraAsCode #Microservices #ItWorksOnMyMachine
Shell And Shield24,200 Aufrufe • vor 1 Jahr
Docker Port Mapping #docker #professorglitch #kubernetes #devops #dev
Professor Glitch18,800 Aufrufe • vor 11 Monaten
kubernetes-networking #devops #kubernetes #docker #aws #cicd
Professor Glitch14,100 Aufrufe • vor 1 Jahr
