---
tags: blog, kubernetes
---
# Kubernetes: How to define container environment variables via config map?

First create a config map and name the keys like the environment variables you like to inject into an container

apiVersion: v1
kind: ConfigMap
metadata:
  name: my-config-map
data:
  SOME_USERNAME: admin
  SOME_SECRET: 123456

Second add the config map to your container specification

apiVersion: apps/v1
kind: Deployment
...
spec:
  ...
  template:
    ...
    spec:
      containers:
      - image: localhost:32000/service
        name: some-service
        resources: {}
        envFrom: 
        - configMapRef:
           name: my-config-map