use k8s secret from nodejs application

Question

I've created the following sample program which I need to create secret values

index.js

const express = require("express");
const port = process.env.PORT || 3000;


app = express();
app.get('/', (req, res) => (
    res.send("hello from k8s"))
)

app.listen(3000, function () {
    console.log("my secret ---> ", process.env.TOKEN1)
    console.log("server is listen to port", port)
})

This is the secret.yaml

apiVersion: v1
kind: Secret
metadata:
  name: secert1
  namespace: trail
type: Opaque
data:
  TOKEN1: cmVhbGx5X3NlY3JldF92YWx1ZTE=

and this is how I connected between of them

apiVersion: apps/v1
kind: Deployment
metadata:
  name: app1
  namespace: trail
spec:
  replicas: 1
  template:
    metadata:
      labels:
        app: app1
    spec:
      containers:
        - name: app1
          image: myimage
          imagePullPolicy: Always
          ports:
            - containerPort: 5000
          env:
            - name: myenv
              valueFrom:
                secretKeyRef:
                  name: secert1
                  key: TOKEN1

When deploying the program I see in k8s logs

my secret --->  undefined
server is listen to port 5000

What am I missing here? in addition assume that I've more than 20 properties which I need to read from my app, is there a better way or just map each of the key value in the secret?

Answer 1

The name is the key for the env var so with what you have, that should be process.env.myenv . You probably instead want to use the envFrom option.