http tester for service mesh

A simple web ui to run http get und nslookup request inside of the cluster. Perfect to check availability of services, dns entries and hostnames from a pod point of view. Used to test Istio Gateway, from Ingress to Eastwest service meshes.

subprojects

• /eurekaclient - a server that reads a configlist of services and publishes them with their istio gateway vip to eureka
• /accesslogs - a server which is replacing any service and just logs the accesslogs to have a tool to find users of a depricated api
• /kind - a simple script based, step by step setup, for dual kind clusters with metallb to create a Istio based service mesh based on vips.

And the build steps for the http tester itself:

build

docker build -t http-tester .

run local

docker run -p 5000:5000 http-tester

publish

docker login
docker tag http-tester wlanboy/http-tester:latest
docker push wlanboy/http-tester:latest

run

docker run -d -p 5000:5000 wlanboy/http-tester

deploy

kubectl create namespace demo
kubectl label namespace demo istio-injection=enabled
kubectl create deployment tester --image=wlanboy/http-tester:latest -n demo
kubectl expose deployment tester --type=ClusterIP --port=5000 -n demo
kubectl set image deployment/tester 'wlanboy/http-tester:latest' -n demo

curl

curl -X POST -d "url=http://helloworld.sample.svc:5000/hello" tester.demo.svc:5000

documentation

• https://github.com/wlanboy/httptester/blob/main/mesh.md