Tag: container best practices

Asp.Net Core

.NET Core: Reduce Docker Image Build Time with Layer Caching Optimization

- - ErcanOPAK comment on .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 […]

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Docker

Reduce Docker Image Sizes by 10x with Multi-Stage Builds

- - ErcanOPAK comment on 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”, […]

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Docker

Why Docker Containers Get Slower Over Time (Even Without Traffic)

- - ErcanOPAK comment on Why Docker Containers Get Slower Over Time (Even Without Traffic)

A container runs fine at first… then slowly degrades. No spikes. No crashes. Just silent slowness. Root cause Layered filesystem (OverlayFS) grows Log files inside containers never rotate Memory fragmentation inside long-lived containers Golden rule Containers are not VMs. They are disposable. Fix Never log to disk inside containers Use external logging drivers Restart containers […]

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