kubernetes microk8s nodeport not found - docker

Question

i have express app running at docker at http://127.0.0.1:3000/
i am trying to access it from microk8s services from http://127.0.0.1:30002/ but getting not found . here is my deployment file for kubernetes
apiVersion: apps/v1
kind: Deployment
metadata:
name: simple-node
namespace: default
spec:
replicas: 1
selector:
matchLabels:
simple: node
template:
metadata:
labels:
simple: node
spec:
containers:
- name: simple-node
image: simple-node:1.0
---
apiVersion: v1
kind: Service
metadata:
name: simple-node
namespace: default
spec:
type: NodePort
selector:
simple: node
ports:
- port: 3000
targetPort: 3000
nodePort: 30002
here is my services and deployment at microk8s .

Answer 1

You have to tag and push image to docker registry.
The containerd daemon used by MicroK8s is configured to trust this insecure registry. To upload images we have to tag
simple-node before pushing it.
You can install the registry with:
microk8s enable registry
Execute commands below:
$ docker build .
$ docker tag aaabbccc simple-node:1.0
$ docker push simple-node:1.0
Pushing to this insecure registry may fail in some versions of Docker unless the daemon is explicitly configured to trust this registry. To address this you need to edit /etc/docker/daemon.json and add:
{
"insecure-registries" : ["localhost:32000"]
}
Then restart Docker to load new configuration.
$ sudo systemctl restart docker
Take a look: registry-built-in.