detect-docker-antipatterns
Docker Antipattern Detection
Analyze Dockerfiles for antipatterns causing bloated images, poor caching, and unreliable builds.
Antipattern Catalog
1. COPY Before Dependency Install
# BAD: Cache busted on every code change
COPY . /var/www/html
RUN composer install --no-dev
# GOOD: Dependencies first, source second
COPY composer.json composer.lock /var/www/html/
RUN composer install --no-dev --no-scripts --no-autoloader
COPY . /var/www/html
RUN composer dump-autoload --optimize
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