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Free eBook: Update an old PHP App with Docker and Jenkins

In 2021 I upgraded a legacy PHP application (PHP 5.3) to an up to date environment (PHP 8.0). This book documents the tools I used and how I set them up to support this effort.

The book has detailed code listings, configurations and screenshots to set up the following:

  • Tests (end-to-end acceptance tests)
  • Jenkins pipeline for continuous integration and deployment
  • Dockerfiles for the development environments (both old environment and new)

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