IOModel Studio

Redis

ID	iomodel.redis
Description	Cache and coordination.
Key	redis
Type	statefulset

Table of contents

Redis Guide

Why it's needed

Deployment

Redis Guide

Redis is the in-memory data store the stack uses for caching and coordination — fast, ephemeral state that speeds things up but does not need the durability guarantees of PostgreSQL.

Role in the stack

Studio caches in Redis and uses it for coordination (e.g. transient locks, rate-limit counters, pub/sub between instances). Losing it degrades performance briefly but does not lose application data.

Why it’s needed

Caching — keeps hot data out of PostgreSQL to cut latency and load.
Coordination — shared counters, locks, and pub/sub across Studio replicas.

apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: redis
  namespace: iomodel
spec:
  serviceName: redis
  replicas: 1
  selector: { matchLabels: { app: redis } }
  template:
    metadata: { labels: { app: redis } }
    spec:
      containers:
        - name: redis
          image: redis:7
          args: ['--maxmemory', '256mb', '--maxmemory-policy', 'allkeys-lru']
          ports: [{ containerPort: 6379 }]

apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: redis
  namespace: iomodel
spec:
  serviceName: redis
  replicas: 1
  selector: { matchLabels: { app: redis } }
  template:
    metadata: { labels: { app: redis } }
    spec:
      containers:
        - name: redis
          image: redis:7
          args: ['--maxmemory', '256mb', '--maxmemory-policy', 'allkeys-lru']
          ports: [{ containerPort: 6379 }]

Set a maxmemory limit and an eviction policy (allkeys-lru for a cache) so Redis can’t grow unbounded and get OOM-killed.

Links and Communications

1 incoming link

Incoming Links(1)

Source object	Label	Link type	Relation	Raw id	Required	Description
IOModel Studio deployment.iomodel.studio deployment	caches in	—	links	iomodel.redis	—	—