Alertmanager.spec.retention

Time duration Alertmanager shall retain data for. Default is '120h', and must match the regular expression `[0-9]+(ms|s|m|h)` (milliseconds seconds minutes hours).

• default: "120h"
• pattern: ^(0|(([0-9]+)h)?(([0-9]+)m)?(([0-9]+)s)?(([0-9]+)ms)?)$