Skip to main content

KA-R002: Missing readiness probe

Warning Reliability

Why This Matters

The container does not define a readinessProbe. Without a readiness probe, Kubernetes may route traffic to the container before it is ready to handle requests, causing client-facing errors during startup and rollouts.

How to Fix

Add a readinessProbe to the container spec

Before (incorrect)

containers:
  - name: app
    image: myapp:1.0

After (correct)

containers:
  - name: app
    image: myapp:1.0
    readinessProbe:
      httpGet:
        path: /ready
        port: 8080
      initialDelaySeconds: 5
      periodSeconds: 10

Rule Details

Rule Code
KA-R002
Severity
Warning
Category
Reliability

Related Rules

KA-R011 Error

Selector/template label mismatch
KA-R001 Warning

Missing liveness probe
KA-R003 Warning

Identical liveness and readiness probes
KA-R004 Warning

Single replica Deployment
KA-R006 Warning

No rolling update strategy