Docker eating 50GB of disk space? Old images, stopped containers, and dangling volumes pile up fast. One command reclaims it all. Check Current Disk Usage: docker system df # Output: TYPE TOTAL ACTIVE SIZE RECLAIMABLE Images 47 12 28.5GB 18.2GB (63%) Containers 89 5 10.2GB 9.8GB (96%) Local Volumes 23 8 2.3GB 1.1GB (47%) Build […]
Tag: Docker Optimization
.NET Core: Reduce Docker Image Build Time with Layer Caching Optimization
Your .NET Docker builds take 5-10 minutes every time? Improper Dockerfile layer ordering is killing your cache efficiency. Bad Dockerfile (No Cache Optimization): FROM mcr.microsoft.com/dotnet/sdk:8.0 AS build WORKDIR /src # This invalidates cache on EVERY code change COPY . . RUN dotnet restore RUN dotnet build -c Release RUN dotnet publish -c Release -o /app/publish […]
Reduce Docker Image Sizes by 10x with Multi-Stage Builds
Your Docker image is 1.2GB when it should be 120MB? Multi-stage builds eliminate build dependencies from your final image. The Problem – Single Stage Build: FROM node:18 WORKDIR /app COPY package*.json ./ RUN npm install # Installs 300MB of dev dependencies COPY . . RUN npm run build # Creates 10MB production build CMD [“node”, […]


