Multiple Services have the same name

App Code:

from flask import Flask

import instana

app = Flask(__name__)

@app.route('/')

def hello():

return 'Hello, World with Instana!'

if __name__ == '__main__':

app.run(host='0.0.0.0', port=8080)

cat requirements.txt

flask

instana

Dockerfile:

FROM python:3.10-slim

WORKDIR /app

COPY requirements.txt .

RUN pip install --no-cache-dir -r requirements.txt

COPY app.py .

EXPOSE 8080

CMD ["python", "app.py"]

---------

docker build -t mbx1010/webapp:latest .

docker push mbx1010/webapp:latest

Kubernetes Deployment:

apiVersion: apps/v1

kind: Deployment

metadata:

name: webapp

spec:

replicas: 1

selector:

matchLabels:

app: webapp

template:

metadata:

labels:

app: webapp

spec:

containers:

- name: webapp

image: mbx1010/webapp:latest

ports:

- containerPort: 8080

env:

- name: INSTANA_SERVICE_NAME

value: "webapp"

- name: AUTOWRAPT_BOOTSTRAP

value: "instana"

---

apiVersion: v1

kind: Service

metadata:

name: webapp

spec:

type: LoadBalancer

selector:

app: webapp

ports:

- protocol: TCP

port: 8080

targetPort: 8080

Test deployment with a Load Balancer Services , the Service Name is webapp, if you deploy this in multiple namespaces , and you do the curl against :

Curl to Service 1
while true

do

curl http://192.168.178.213:8080/

sleep 10

done

------

Curl to Service 2
while true

do

curl http://192.168.178.212:8080/

sleep 10

done