pod.dummy-response-generator.yaml

apiVersion: v1
kind: Pod
metadata:
  name: dummy-response-generator
  labels:
    app: dummy-response-generator
spec:
  restartPolicy: OnFailure
  containers:
  - name: mongo
    image: mongo:5
    command:
    - sh
    - -c
    - |
      mongosh mongodb+srv://quiz-pods.kiada.svc.cluster.local/kiada?tls=false --quiet --file /dev/stdin <<EOF

      const dateFrom = new Date("2020-01-01Z");
      const dateTo = new Date("2023-01-01Z");
      const maxTimeBetweenResponsesMillis = 3600 * 1000; // 1 hour
      
      print("Generating dummy quiz responses");
      print("===============================");
      print();
  
      var cursor = db.questions.find();
      var questions = cursor.toArray();
      cursor.close();
  
      print("Found " + questions.length + " questions.");
      print();
      print("Date range:");
      print("  From: " + dateFrom);
      print("  To:   " + dateTo);
      print();
      print("Generated responses:")
      
      var count=0;
      var responses = [];
      var date = dateFrom;
      do {
        date.setTime(date.getTime() + Math.floor(Math.random() * maxTimeBetweenResponsesMillis));
      
        var question = questions[Math.floor(Math.random() * questions.length)];
        var answerIndex = Math.floor(Math.random() * question.answers.length);
        var response = {
          timestamp: date,
          questionId: question.id,
          answerIndex: answerIndex,
          correctAnswerIndex: question.correctAnswerIndex,
          correct: answerIndex == question.correctAnswerIndex
        };
        print(JSON.stringify(response));
        responses.push(response);
        count++;
      
        if (count % 1000 == 0) {   // insert responses in batches of 1000
          db.responses.insertMany(responses);
          responses = [];
        }
      } while (date.getTime() < dateTo)
      
      db.responses.insertMany(responses); // insert any remaining responses
                 
      print();
      print("Generated a total of " + count + " responses.");
      print();
      print("Done.");
      EOF