Overview:

Kubernetes Secrets and ConfigMaps store sensitive data. Ensuring their secure management is critical.

Best Practices:

1. Encrypt Secrets at Rest:

   • Enable encryption of Secrets using a custom encryption configuration file.

   apiVersion: apiserver.config.k8s.io/v1
   kind: EncryptionConfiguration
   resources:
   - resources:
     - secrets
     providers:
     - aescbc:
         keys:
         - name: key1
           secret: c2VjcmV0LWtleQ==
     - identity: {}

   • Apply the configuration:

     kubectl apply -f encryption-config.yaml

2. Avoid Hardcoding Secrets:

   • Use environment variables to inject Secrets into containers.

   apiVersion: v1
   kind: Pod
   metadata:
     name: secret-pod
   spec:
     containers:
     - name: my-app
       image: nginx
       env:
       - name: SECRET_KEY
         valueFrom:
           secretKeyRef:
             name: my-secret
             key: secret-key

Activity:

Encrypt Secrets at rest and inject them securely into a Pod using environment variables.