SRE practices: SLOs, incidents, redundancy

Quiz: incident response

Question 1 of 10

The “site 502” alert and the runbook, journalctl -t sudo and the traces of changes, a rollback with a copy, timeline lines, the outage start from the site check, Restart=on-failure and its limit, a blameless postmortem. The questions follow the lessons “A runbook and the first ten minutes” and “A blameless postmortem”.

10 questions · threshold 70%

One correct answer

`curl` confirmed it: the site answers 502. In the sudo journal, a second before the alert, deploy changed the port in /etc/default/lab-app and restarted lab-app. What do you do next?

Copy the changed file to ~/incident, roll the change back and check the site.
Write the postmortem while the details are fresh.
Reboot the machine to reset all the changes.
Ask deploy why the port was changed and decide after the answer.

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Quiz: incident response

curl confirmed it: the site answers 502. In the sudo journal, a second before the alert, deploy changed the port in /etc/default/lab-app and restarted lab-app. What do you do next?

`curl` confirmed it: the site answers 502. In the sudo journal, a second before the alert, deploy changed the port in /etc/default/lab-app and restarted lab-app. What do you do next?