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

• /diagrams - ISTIO service mesh and gateway diagrams
• /egress - short howto for ISTIO egress gateways
• /istio-vm-service - short howto for ISTIO VM integration
• /k3s-airgap - short howto for k3s airgap install
• /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:

get uv - makes python life easier

curl -LsSf https://astral.sh/uv/install.sh | sh

run

uv sync
.venv/bin/uvicorn server:app --reload --host 0.0.0.0 --port 5000

from scratch

• cd httptester
• uv sync
• uv pip compile pyproject.toml -o requirements.txt
• uv pip install -r requirements.txt
• uv run server.py

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 as daemon

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

test calls

• use swagger ui: http://localhost:5000/docs