Lab catalog
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A report from the nginx log The five longest requests and the bytes per response code for one day, from an nginx log cut in two by rotation.~30 min not started
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Change an address in every config The backend has moved: thirty configs with the address written in different ways, and the comments and similar addresses must stay.~25 min not started
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Fix the report script The upload check script lets empty files through, cuts names apart and hides failures — bring it up to its contract.~25 min not started
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Write a healthcheck to a contract The deploy needs a script that tells whether an address is ready for traffic. The answer is an OK or FAIL line and an exit status, even when the server stays silent.~25 min not started
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