If the port-forward doesn’t work, you can apply inside your VM:

apiVersion: <http://networking.k8s.io/v1|networking.k8s.io/v1>
kind: Ingress
metadata:
  name: openobserve-ingress
  namespace: openobserve
spec:
  ingressClassName: nginx
  rules:
  - host: 5min-idp-openobserve.localhost
    http:
      paths:
      - backend:
          service:
            name: openobserve
            port:
              number: 5080
        path: /
        pathType: Prefix

and afterwards access http://5min-idp-openobserve.localhost:30080/web/login