upgrade-egress-test.sh

echo "### Downloading both versions of Istio"
curl -L https://istio.io/downloadIstio | ISTIO_VERSION=1.4.6 sh -
curl -L https://istio.io/downloadIstio | ISTIO_VERSION=1.5.1 sh -


echo "### Uninstall sleep"
kubectl delete deployment sleep -n default
kubectl delete -f ./test-egress-gateway.yaml


echo "### Uninstall Istio 1.5"
./istio-1.5.1/bin/istioctl manifest generate --set profile=demo | kubectl delete -f -
sleep 120s

echo "### Install Istio 1.4"
./istio-1.4.6/bin/istioctl manifest apply --set profile=demo
sleep 120s

echo "### Install Sleep"

function get_sleep_pod_ready {
    kubectl get pod -l app=sleep --no-headers | grep "2/2"
}
function install {
    kubectl label namespace default istio-injection=enabled --overwrite
    kubectl get namespace -L istio-injection
    kubectl apply -f ./istio-1.4.6/samples/sleep/sleep.yaml
    until get_sleep_pod_ready; do sleep 5; done
    kubectl apply -f ./test-egress-gateway.yaml
    sleep 5
}
install
​
function check_egress {
    time_start=$(gdate --iso-8601=seconds)
    export SOURCE_POD=$(kubectl get pod -l app=sleep -o jsonpath={.items..metadata.name})
    kubectl exec -it $SOURCE_POD -c sleep -- curl -sL -o /dev/null -w "%{http_code}\n" http://edition.cnn.com/politics || true
    kubectl exec -it $SOURCE_POD -c sleep -- curl -sL -o /dev/null -w "%{http_code}\n" https://edition.cnn.com/politics || true
    sleep 15
    echo "###### SIDECAR PROXY"
    kubectl logs -l app=sleep -c istio-proxy --since-time=$time_start
    echo "###### EGRESS GATEWAY"
    kubectl logs -l app=istio-egressgateway -n istio-system --since-time=$time_start
}
check_egress

echo "### Upgrade to Istio 1.5"
./istio-1.5.1/bin/istioctl upgrade -f ./istio-1.5.1/install/kubernetes/operator/profiles/demo.yaml --force
y

sleep 180s
check_egress