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Erschienen in:
2023 | OriginalPaper | Buchkapitel
6. Customize Container Environments
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Abstract
Running containers is comparable to calling a sophisticated shell script. Containers and shell scripts both perform a scoped set of tasks. Scripts can be explicit, with hard-coded values, but adding some flexibility makes them more portable and valuable. That might mean deriving specific values from the environment or interpreting parameters passed to the script at runtime. Take an RMAN backup script as an example. Hard-coding the database name prevents its use on other databases. Pass the database name as a variable, and the same script works across an enterprise. Adding additional options for the backup destination, degree of parallelism, and incremental level makes the script much more flexible and valuable over various implementations.