QCon London: Learnings from Automating Deployments
Briefly

"Process automation helps to remove the human error component, and with intelligent deployment mechanisms, checks such as file share latency can be checked before deployments to ensure downtime isn't an issue."
"These days, with deployment automation and blue/green deployments, new versions can be deployed and tested in a production environment before being made available to end users."
Read at InfoQ
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