Developer Documents Full Docker-to-Azure Deployment Journey With Three Real Errors Fixed

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A developer built a small Node.js/Express app called Container Vibes as a hands-on exercise to learn Docker and Azure deployment in practice. The app serves random color-themed quotes via an API endpoint and includes a health check route. The project involved containerizing the app with Docker, pushing the image to Docker Hub, and deploying it live using Azure Container Instances. The developer encountered and resolved three distinct errors during the process, documenting each diagnosis and fix in detail. The completed project runs at a public URL with source code version-controlled on GitHub.

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