Infra & Cloud yaml Intermediate

Kubernetes ConfigMap from File

Mount a configuration file into a pod using a ConfigMap volume.

yaml
apiVersion: v1
kind: ConfigMap
metadata:
  name: app-config
data:
  config.yaml: |
    log_level: info
    database_pool: 10
    cache_ttl: 3600
---
spec:
  containers:
    - name: app
      volumeMounts:
        - name: config
          mountPath: /etc/app
  volumes:
    - name: config
      configMap:
        name: app-config

Prerequisites

  • Kubernetes >= 1.26

Pro Tips

  • → Use subPath to mount a single key as a file.

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Module Info

Language
yaml
Level
Intermediate
Read time
3 min
Published
Dec 2025
License
Commercial License

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