ext-auth-http-service.yaml

---
apiVersion: v1
kind: ConfigMap
metadata:
  name: http-ext-auth
  namespace: gateway-conformance-infra
data:
  http-ext-auth.js: |
         const Http = require("http");
         const path = require("path");

         const tokens = {
           "token1": "user1",
           "token2": "user2",
           "token3": "user3"
         };

         const server = new Http.Server((req, res) => {
           const authorization = req.headers["authorization"] || "";
           const extracted = authorization.split(" ");
           if (extracted.length === 2 && extracted[0] === "Bearer") {
             const user = checkToken(extracted[1]);
             console.log(`token: "${extracted[1]}" user: "${user}`);
             if (user !== undefined) {
               // The authorization server returns a response with "x-current-user" header for a successful
               // request.
               res.writeHead(200, { "x-current-user": user });
               return res.end();
             }
           }
           res.writeHead(403);
           res.end();
         });

         const port = process.env.PORT || 9002;
         server.listen(port);
         console.log(`starting HTTP server on: ${port}`);

         function checkToken(token) {
           return tokens[token];
         }
---
apiVersion: apps/v1
kind: Deployment
metadata:
  name: http-ext-auth
  namespace: gateway-conformance-infra
spec:
  replicas: 1
  selector:
    matchLabels:
      app: http-ext-auth
  template:
    metadata:
      labels:
        app: http-ext-auth
    spec:
      containers:
      - name: http-ext-auth
        command:
        - node
        - /usr/src/app/http-ext-auth.js
        image: node:19-bullseye
        ports:
        - containerPort: 9002
        volumeMounts:
        - name: http-ext-auth
          mountPath: /usr/src/app
        readinessProbe:
          httpGet:
            httpHeaders:
            - name: authorization
              value: "Bearer token1"
            port: 9002
      volumes:
      - name: http-ext-auth
        configMap:
          name: http-ext-auth
---
apiVersion: v1
kind: Service
metadata:
  name: http-ext-auth
  namespace: gateway-conformance-infra
spec:
  selector:
    app: http-ext-auth
  ports:
  - protocol: TCP
    port: 9002
    targetPort: 9002