Kubernetes - Operators and Custom Resources
Given this YAML snippet for a MySQL operator:
apiVersion: mysql.presslabs.org/v1alpha1
kind: MysqlCluster
metadata:
name: test-mysql
spec:
replicas: 2
What will be the number of MySQL pods created?
Given this YAML snippet for a MySQL operator: apiVersion: mysql.presslabs.org/v1alpha1 kind: MysqlCluster metadata: name: test-mysql spec: replicas: 2 What will be the number of MySQL pods created?
medium📝 Command Output Q4 of 15
Step-by-Step Solution
Solution:
Step 1: Read replicas field in spec
The replicas field is set to 2, indicating desired pod count.Step 2: Understand operator behavior
The MySQL operator creates pods equal to replicas specified for the cluster.Final Answer:
2 pods -> Option DQuick Check:
Replicas = 2 pods created [OK]
Quick Trick: Replicas field controls pod count in operator spec [OK]
Common Mistakes:
- Assuming default pod count is 1
- Confusing replicas with instances
- Ignoring replicas field
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