pip install envfrom

Call child process with custom environment

positional arguments:
  {cli,dir,kube,vault}  env source
    cli                 Dict values: FOO=BAR BAR=FOO
    dir                 Set environment according to files in a specified path
        dotenv              Set environment according to .env file
    kube                Mirror specified kubernetes ressource volume keys (decoded)
    vault               Fetch secrets from Vault paths
  child                 child process

optional arguments:
    -h, --help            show this help message and exit

apiVersion: v1
kind: Secret
metadata:
  name: mysecret
type: Opaque
data:
  username: YWRtaW4=

env -i envfrom kube secrets mysecret env

username=admin