Continuous Delivery with Docker and Jenkins

Summary

This chapter was a mixture of various Continuous Delivery aspects that were not covered before. The key takeaways from the chapter are as follows:

• Databases are an essential part of most applications and should, therefore, be included in the Continuous Delivery process.
• Database schema changes are stored in the version control system and managed by database migration tools.
• There are two types of database schema change: backwards-compatible and backwards-incompatible. While the first type is simple, the second requires a bit of overhead (split to multiple migrations spread over time).
• A database should not be the central point of the whole system. The preferred solution is to provide each service with its own database.
• The delivery ...