dotenv-from-k8s

A commandline cli tool to fetch, merge and convert secrets and config maps in k8s to dot env property file.

In most frontend projects environment variables are built as part of docker build. This tool allows you to create a .env file from k8s secrets and config maps before doing a docker build. This way you can store your secrets in k8s secrets just like you would for a nodejs service.

This tool uses kubernetes apis via the official kubernetes client for javascript and
will use your currently configured kubectl to perform necessary api calls. So make sure you have configured your kubectl correctly before running this.

Installation

``sh
npm install -g dotenv-from-k8s
`

Usage

`s

dotenv-from-k8s 1.4.0 - A commandline cli tool to fetch, merge and convert secrets and config maps in k8s to dot env property file.

USAGE

dotenv-from-k8s

OPTIONS

-i, --input Input configuration file optional default: false
-o, --out Output env file name, defaults to stdout optional default: false
-s, --secret K8s from which you want to generate env file optional
-c, --configmap K8s from which you want to generate env file optional
-n, --namespace K8s from which you want to access the secrets and/or config maps optional
-x, --context K8s context from which you want to access the secrets and/or config maps optional

MORE INFO


Basic example:
---------------
dotenv-from-k8s -c api-config -o .env
or
dotenv-from-k8s -c api-config > .env

Advanced example:
----------------
dotenv-from-k8s -s api-secrets -s api-secrets2 -c api-config -c api-config2 -n default > .env

Config file example:
--------------------
cat > env-from.yaml <

namespace: default
envFrom:
- secretRef:
name: app-secrets
- configMapRef:
name: app-config

EOL

dotenv-from-k8s -i env-from.yaml -o .env


Config file example with overrides:
-----------------------------------
cat > env-from.yaml <

namespace: default
envFrom:
- secretRef:
name: app-secrets
- configMapRef:
name: app-config
overrides:
HELLO: WORLD
ANOTHER_KEY: ANOTHER_VALUE

EOL

dotenv-from-k8s -i env-from.yaml -o .env


GLOBAL OPTIONS

-h, --help Display help
-V, --version Display version
--no-color Disable colors
--quiet Quiet mode - only displays warn and error messages
-v, --verbose Verbose mode - will also output debug messages


`

Example

$3

dotenv-from-k8s -c api-config -o .env
or
dotenv-from-k8s -c api-config > .env

$3

dotenv-from-k8s -s api-secrets -s api-secrets2 -c api-config -c api-config2 -n default > .env

$3

env-from.yaml

`
namespace: default
envFrom:
- secretRef:
name: app-secrets
- configMapRef:
name: app-config
overrides:
Hello: World
`

dotenv-from-k8s -i env-from.yaml -o .env

Alternatives

If you do not want to use this tool for some reason you can try

PS: You will need jq version 1.6+ installed on your system.

`sh
kubectl get secrets/api-secrets -o json | \
jq -r '.data | map_values(@base64d) | to_entries[] | "\(.key)=\(.value)"' > .env

kubectl get configmaps/api-config -o json | \
jq -r '.data | to_entries[] | "\(.key)=\(.value)"' >> .env
``