Math Notes — Orkestra

Arithmetic on spec fields. All notes accept string, int64, or float64. Return int64 when the result is a whole number, float64 otherwise.

Reference

Note	Signature	Returns
`add`	`a, b`	number
`sub`	`a, b`	number
`mul`	`a, b`	number
`div`	`a, b`	number
`mod`	`a, b`	`int64`
`min`	`a, b`	number
`max`	`a, b`	number
`clamp`	`val, lo, hi`	number
`abs`	`a`	number

Examples

# Port arithmetic
port: "{{ add .spec.basePort 1000 }}"

# Enforce replica bounds
replicas: "{{ clamp .spec.replicas 2 20 }}"

# Default floor
replicas: "{{ max .spec.replicas 1 }}"

# Tenant resource quota: 1/4 of the declared CPU limit
cpu: "{{ formatQuantity (div (parseQuantity .spec.cpuLimit) 4) }}"

Compose with resource quantity notes for Kubernetes CPU/memory arithmetic.