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Generate Kubernetes Secrets from a list of environment variables

Project description

k8secrets

PyPI version Python versions Code style

When deploying an application to k8s cluster you often need to create a secret object that contains environment variables for that application.

This is a tedious process:

  1. Create a .yaml file
  2. base64 encode it
  3. Add key/value pairs to the .yaml file
  4. Add variables with correspondint references to the env section in a deployment object

This tool will automate that process for you.

Installation

Use pip to install this package. You can install it in a virtualenv or globally (this package has no dependencies an should not break your environment).

pip install --user k8secrets

After this, you can run k8secrets command in your terminal or run the package like this:

python3 -m k8secrests

Usage

k8secrets takes a secret object name and a list of variables as input:

k8secrets mysecret KEY1=value1,KEY2=value2

It can also read the variables from stdin (you can pipe input into it):

echo KEY1=value1,KEY2=value2 | k8secrets mysecret

Variable list is a list of key/value pairs in any of the following formats:

  • KEY=value
  • export KEY=value - found in .env files on Linux
  • KEY:value
  • KEY\tvalue (separated by a tab character)

If value is wrapped in '' or "", the quotes are ignored. Pairs can be separated either by a newline character (Unix or Windows), , or ;.

Output

k8secrets prints output to stdout. The output is valid yaml and contains two sections. First is a complete k8s secret object:

---
apiVersion: v1
kind: Secret
metadata:
  name: mysecret
type: Opaque
data:
  key1: dmFsdWUx
  key2: dmFsdWUy

The second is an env section with references to the secret object that you can use in your deployments or cronjobs:

---
env:
  - name: KEY1
    valueFrom:
      secretKeyRef:
        name: mysecret
        key: key1
  - name: KEY2
    valueFrom:
      secretKeyRef:
        name: mysecret
        key: key2

Project details


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