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component-redis

A small Redis instance for a project. Single-replica Deployment + ClusterIP Service on port 6379.

warning

Not persistent. Suitable for caching / queues that tolerate data loss on restart. If you need persistence, use a real Redis operator outside this chart.

Enable it​

component-redis:
  enabled: true

Defaults​

image:
  repository: redis
  tag: "7"
  pullPolicy: IfNotPresent
containerPort: 6379
maxmemory: ""                 # e.g. "1gb"; empty = unbounded
maxmemoryPolicy: volatile-lru # only evicts keys with a TTL (cache), never queue jobs or sessions
extraArgs: []                 # extra redis-server arguments
resources:
  requests: { cpu: 50m, memory: 64Mi }
  limits: { cpu: 250m, memory: 256Mi }

Craft sites keep their whole cache in Redis (24h TTL). Size it from the current working set, for example:

component-redis:
  enabled: true
  maxmemory: 1gb
  resources:
    requests: { cpu: 100m, memory: 512Mi }
    limits: { cpu: 500m, memory: 1280Mi }

Keep resources.limits.memory about 25% above maxmemory. Without maxmemory Redis grows until the limit kills it, and the queue in the same instance loses its in-flight jobs.

How to reach it​

The service is named redis-service in the project namespace. Connection string for your app:

redis://redis-service:6379