August 2017
Intermediate to advanced
332 pages
9h 16m
English
Content preview from Continuous Delivery with Docker and Jenkins
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Test and production instances
Apart from the scaling approach, there is one more issue: how to test the Jenkins upgrades, new plugins, or pipeline definitions? Jenkins is critical to the whole company. It guarantees the quality of the software and (in case of Continuous Delivery) deploys to the production servers. That is why it needs to be highly available, so it is definitely not for the purpose of testing. It means there should always be two instances of the same Jenkins infrastructure: test and production.
Test environment should always be as similar as possible to the production, so it also requires the similar number of agents attached.
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