How CI/CD works: why releasing code every day is safer than once a month
Continuous delivery: why a release should be one boring button
In 2012, a trading firm copied new code onto eight servers by hand and missed one. When the market opened, it lost more than $460 million in about 45 minutes. What continuous delivery changes in the last step before production.
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In the last days of July 2012, a technician at the trading firm Knight Capital copied new code onto eight servers by hand, and missed one. On 1 August, that server still ran old code: it sent millions of orders to the market, and in about 45 minutes the firm lost more than $460 million.
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Rono's list of hand steps holds the same kind of risk, every single time: one step skipped on one server, late at night, by a tired person.
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