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- Install ISTIO on minikube using instruction here: Istio Installation - Simplified Learning (waytoeasylearn.com)
cd to the istio directory and install the demo application
kubectl create ns foo
kubectl apply -f <(istioctl kube-inject -f samples/httpbin/httpbin.yaml) -n foo
Create a python script to generate a JWT token using the code from here: https://medium.com/intelligentmachines/istio-jwt-step-by-step-guide-for-micro-services-authentication-690b170348fc . Install python_jwt using pip if it's not already installed.
- Create jwt-example.yaml using the public key generated by the python script: kubectl create
f jwtexamplekubectl create -f jwt-example.yaml
Code Block language yml title jwt-example.yaml apiVersion: "security.istio.io/v1beta1" kind: "RequestAuthentication" metadata: name: "jwt-example" namespace: istio-system spec: selector: matchLabels: istio: ingressgateway jwtRules: - issuer: "ISSUER" jwks: | { "keys":[{"e":"AQAB","kty":"RSA","n":"x_yYl4uW5c6NHOA-bDDh0MThFggBWl-vYJr77b9F1LmAtTlJVM0rL5klTfv2DmlAmD9eZPrWeUOoOGhSpe58XiSAvxyeaOrZhtyUjT3aglrSys0YBsB19ItNGMuoIuzPpWOrdtKwHa9rPbrdc6q7vb93qu2UVaIz-3FJmGFtSA5t8FK_5bZKF-oOzRLwqeVQ3n0Bu_dFDuGeZjQWMZF32QupyA-GF-tDGGriPLy9sutlB1NQyZ4qiSZx5UMxcfLwsWfQxHemdwLeZXWKWNBov8RmbZy2Jz-dwg6XjHBWAjTnCGG9p-bp63nUlnELI3LcEGhGOugZBqcpNT5dEAQ0fQ"}]}
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Export the JWT token generated by the python script as an environment variable
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:
export TOKEN="eyJhbGciOiJSUzI1NiIsInR5cCI6IkpXVCJ9.eyJhdWQiOiJBVURJRU5DRSIsImV4cCI6MTYzNzI1NDkxNSwiaWF0IjoxNjM3MjUxOTE1LCJpc3MiOiJJU1NVRVIiLCJqdGkiOiJCcmhDdEstcC00ZTF0RlBrZmpuSmhRIiwibmJmIjoxNjM3MjUxOTE1LCJwZXJtaXNzaW9uIjoicmVhZCIsInJvbGUiOiJ1c2VyIiwic3ViIjoiU1VCSkVDVCJ9.HrQCLPZXf0VkFe7JUVGXq-sHJQhVibqhToG4r63py-iwHWlUL02_WfoWRoxapgqGwImDdSlt1uG8RR-6VMqzWwGlcqBIRhFTG0nmzmtQjnOUs6QAKSUpA3PyWBIYHV0BwZbpo8Zq1Bo-sELy400fU-MCQ_054fSsG7JMBMmrnj8NyJmD2lNN0VSFGO53SPl2tQSVlc9OwAr8Uu0jfLPfUmh6yq43qFuxnVRfBGLLPNOt29aOfAetKLc72qlphtnbDx2a9teP5AIbkIWyIlhTytEnQRCwU4x8gDrEdkrHui4qCtzpl_uoITSwPe3AFsi7gQHB6rJoDj-j2zPc4rUTAA"
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export INGRESS_HOST=$(minikube ip)
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export INGRESS_PORT=$(kubectl -n istio-system get service istio-ingressgateway -o jsonpath='{.spec.ports[?(@.name=="http2")].nodePort}')
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Test the service:
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curl --header "Authorization: Bearer $TOKEN" $INGRESS_HOST:$INGRESS_PORT/headers -s -o /dev/null -w "%{http_code}\n"
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You should get a response code of 200
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Update the token to something invalid
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The
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response will be 401
Istio Service JWT Test
istio-test.yaml (uses the default namespace)
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