To change the targetPort, you can simply modify the value of the targetPort field in the Service specification. Here's an updated example:

apiVersion: v1
kind: Service
metadata:
name: my-service
spec:
selector:
app.kubernetes.io/name: MyApp
ports:
- protocol: TCP
port: 80
targetPort: [NEW TARGET PORT NUMBER]

In this example, replace the placeholder "[NEW TARGET PORT NUMBER]" with the desired target port number. This will cause the Service to map incoming traffic on port 80 to the specified target port on the matching Pods.
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