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10 Docker Mistakes Developers Should Avoid Before Deploying Apps

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A developer guide highlights common Docker pitfalls that can cause problems when moving from local development to production deployment. Key issues include bloated images from unnecessary files, hardcoded secrets in Dockerfiles, and misunderstanding the role of containers versus servers. Developers are advised to use .dockerignore files, environment variables for sensitive data, and smaller base images like Alpine where compatible. Proper layer ordering in Dockerfiles can significantly speed up repeated builds by leveraging Docker's caching mechanism. Persistent data such as database files and uploads should be stored using volumes, since container filesystems are temporary and data can be lost on recreation.

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10 Docker Mistakes Developers Should Avoid Before Deploying Apps · ShortSingh