Kubernetes Deployment.yaml

mhmdhaj 0
Viewed 35

I'm new to Kubernetes, I have a docker image built and run with npm token how to convert this to deployment in Kubernetes. Below is my image and command to build and run.

#First Build
FROM node:16.17-bullseye

ARG NPM_TOKEN
WORKDIR /usr/src/app

#COPY package*.json .npmrc ./
COPY package*.json /usr/src/app/
COPY .npmrc /usr/src/app/


RUN npm update
RUN npm install 

COPY . .


CMD ["npm","run","main"]

Buld command:

docker build . -t image --build-arg NPM_TOKEN=<token>

Run command:

docker run -p 3001:3001 -it -e NPM_TOKEN="Token" imageid

I'm using azure pipelines where image is build, pushed to azure container registry, then pulled and deployed to aks (azure kubernetes service). Below is my deployment file :

apiVersion : apps/v1
kind: Deployment
metadata:
  name: microa
  namespace: ingress-basic
spec:
  replicas: 1
  selector:
    matchLabels:
      app: microa
  template:
    metadata:
      labels:
        app: microa
    spec:
      containers:
        - name: microa
          image: acrURL/microa
          args: ["NPM_TOKEN=<token>"]
          resources:
            requests:
              memory: "256Mi"
              cpu: "1000m"
            limits:
              memory: "512Mi"
              cpu: "1500m"
          ports:
          - containerPort: 3001
kubernetes npm node.js
2 Answers

(answer to comment merged into question...)

mhmdhaj0

I think you're going in the right direction, one thing that needs to be corrected is that the "NPM_TOKEN" is written as an environment variable in your docker script, but in your YAML file, you defined it as an arg. So the correct deployment.yaml file would be:

apiVersion : apps/v1
kind: Deployment
metadata:
  name: microa
  namespace: ingress-basic
spec:
  replicas: 1
  selector:
    matchLabels:
      app: microa
  template:
    metadata:
      labels:
        app: microa
    spec:
      containers:
        - name: microa
          image: acrURL/microa
          env:
          - name: NPM_TOKEN
            value: "<token>"
          resources:
            requests:
              memory: "256Mi"
              cpu: "1000m"
            limits:
              memory: "512Mi"
              cpu: "1500m"
          ports:
          - containerPort: 3001

Additionally, you have to port forward the container port to your localhost in order to access your application, the command below is equivalent to "-p 3001:3001" in your docker run command:

kubectl port-forward -n ingress-basic pods/microa 3001:3001

Once the port-forward is set up, you would be able to access your application at http://localhost:3001 .

A.S0
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