Istio 1.7.4 Install - Expose Kiali through unsecure gateway

01-base-istio-install.txt

#!/usr/bin/env bash

VERSION=1.7.4

if [[ ! -d "${HOME}/Software/istio-${VERSION}" ]]
then
  cd Software
  curl -L https://istio.io/downloadIstio | ISTIO_VERSION=${VERSION} TARGET_ARCH=x86_64 sh -
fi

export ISTIO_HOME=$HOME/Software/istio-${VERSION}
export PATH=$PATH:$ISTIO_HOME/bin

cd $ISTIO_HOME

# 1.7
istioctl install --set profile=demo
kubectl apply -f samples/addons/prometheus.yaml -n istio-system
kubectl apply -f samples/addons/grafana.yaml -n istio-system
kubectl apply -f samples/addons/jaeger.yaml -n istio-system
kubectl apply -f samples/addons/kiali.yaml -n istio-system

02-kiali-telemetry.yaml

apiVersion: networking.istio.io/v1alpha3
kind: Gateway
metadata:
  name: kiali-gateway
  namespace: istio-system
spec:
  selector:
    istio: ingressgateway
  servers:
  - port:
      number: 80
      name: http-kiali
      protocol: HTTP
    hosts:
    - "kiali.ingress-ip"
---
apiVersion: networking.istio.io/v1alpha3
kind: VirtualService
metadata:
  name: kiali-vs
  namespace: istio-system
spec:
  hosts:
  - "kiali.ingress-ip"
  gateways:
  - kiali-gateway
  http:
  - route:
    - destination:
        host: kiali
        port:
          number: 20001
---
apiVersion: networking.istio.io/v1alpha3
kind: DestinationRule
metadata:
  name: kiali
  namespace: istio-system
spec:
  host: kiali
  trafficPolicy:
    tls:
      mode: DISABLE

03-ingress-ip.txt

minikube ip
192.168.39.90

lponce@neorecopolis:~$ ping kiali.ingress-ip 
PING kiali.ingress-ip (192.168.39.90) 56(84) bytes of data.
64 bytes from kiali.ingress-ip (192.168.39.90): icmp_seq=1 ttl=64 time=0.449 ms
64 bytes from kiali.ingress-ip (192.168.39.90): icmp_seq=2 ttl=64 time=0.389 ms

04-install-kiali-with-sidecar.txt

lponce@neorecopolis:~/Software/istio-1.7.4$ bin/istioctl kube-inject -f samples/addons/kiali.yaml | kubectl apply -f -

05-access-using-ingress-port.txt

export INGRESS_PORT=$(kubectl -n istio-system get service istio-ingressgateway -o jsonpath='{.spec.ports[?(@.name=="http2")].nodePort}')
export GATEWAY_URL=$INGRESS_HOST:$INGRESS_PORT


http://kiali.ingress-ip:32073/kiali/console/overview?duration=60&refresh=15000

But in short, if you only have a single ingress, ports are defined in that service, another option may be to create a different ingress just for Kiali and connect it to Istio as well using selector.