[update] - add help for how to write an incident report

Author: lamhaison

common/help_incident.sh

@@ -0,0 +1,27 @@
+function lamhaison_help_incident_report() {
+	echo "
+		Reference - https://sysadmincasts.com/episodes/20-how-to-write-an-incident-report-postmortem
+		Reference - https://blog.tolleiv.de/2015/01/post-mortem-documentations-or-how-to-build-knowledge-during-failures/
+		Google API infrastructure outage incident report - https://developers.googleblog.com/2013/05/google-api-infrastructure-outage_3.html
+		Issue Summary
+			short summary (5 sentences)
+			list the duration along with start and end times (include timezone)
+			state the impact (most user requests resulted in 500 errors, at peak 100%)
+			close with root cause
+		Timeline
+			list the timezone
+			covers the outage duration
+			when outage began
+			when staff was notified
+			actions, events, …
+			when service was restored
+		Root Cause
+			give a detailed explanation of event
+			do not sugarcoat
+			Resolution and recovery
+			give detailed explanation of actions taken (includes times)
+		Corrective and Preventative Measures
+			itemized list of ways to prevent it from happening again
+			what can we do better next time?
+	"
+}