Bounding what a namespace can use.
WHAT A QUOTA DOES
Caps total resources in a namespace.
WHAT IT CAN CAP
Processor and memory requests and limits Storage The number of objects of a kind
WHY OBJECT COUNTS MATTER
Runaway automation can create thousands of objects.
WHAT A LIMIT RANGE DOES
Sets defaults and bounds for individual containers.
WHY THAT COMPLEMENTS QUOTAS
It ensures every container has requests, without each author remembering.
WHAT HAPPENS WITH A QUOTA AND NO DEFAULTS
Pods without requests are rejected.
WHY
The quota cannot account for them.
WHAT THAT PRODUCES
Confusing failures for developers.
WHAT TO DO
Set a limit range providing defaults, alongside any quota.
WHAT TO SIZE QUOTAS FROM
Measured usage, plus headroom.
WHAT TO DO WHEN A QUOTA IS REACHED
Investigate before raising it.
WHY
It frequently indicates something misbehaving.
WHAT TO MONITOR
Usage against quota, per namespace.
WHAT TO ALERT ON
Approaching the limit.
WHAT TO COMMUNICATE
What the quota is, and how to request more.
WHY
Otherwise it appears as an unexplained failure.
