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Java Application Containerization and Deployment
- Containerization of applications provides a way to combine all required application resources — including program and configuration files, environment variables, networking settings, and more — in a single, standardized, easily manageable package.
- Multiple functionally identical containers can be started, run, managed, and terminated from a single container image, ensuring consistency from the point of image creation onward.
- While there are numerous benefits to app containerization, many roll up into a single word: consistency.
- Containerization solves nearly all of those externalities.
- If you're just beginning to work with containerization, starting with a smaller, but full, operating system (OS) is a great first step.
- There are various schools of thought on this, but if you're just beginning to work with containerization, starting with a smaller, but full, operating system (OS) is a great first step.
- Many developers begin their containerization efforts by poring over the official Dockerfile reference documentation.
- Multi-stage builds provide the means to reduce the size of container images if you have files required for the build that aren't required for the final output.
- For applications that are largely self-contained, deploying to production can be as simple as a single command, assuming the deployment target is ready to accept a containerized application.
- Containerization enables developers to combine all required application resources and supporting services in one or more container image(s) and to deploy, run, and manage them more easily.
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