go-exercises-worker

Background worker of the service for solving programming exercises.

Features

• interaction with queues:
  • common properties:
    • automatic declaring of the used queues;
    • passing of a message data in JSON;
  • operations:
    • consuming of the solutions:
      • concurrent handling;
      • once requeue the solution on failure;
    • producing of the solution results:
      • generating of the custom message ID;
• solution runners:
  • solution runner based on the github.com/thewizardplusplus/go-code-runner package:
    • loading of the allowed imports from an outer configuration;
    • canceling by a timeout:
      • code compiling;
      • code execution;
• tools:
  • script for generating the allowed import configuration.

Installation

Prepare the directory:

$ mkdir --parents "$(go env GOPATH)/src/github.com/thewizardplusplus/"
$ cd "$(go env GOPATH)/src/github.com/thewizardplusplus/"

Clone this repository:

$ git clone https://github.com/thewizardplusplus/go-exercises-worker.git
$ cd go-exercises-worker

Install dependencies with the dep tool:

$ dep ensure -vendor-only

Build the project:

$ go install ./...

Usage

$ go-exercises-backend

Environment variables:

• ALLOWED_IMPORT_CONFIG — path to the allowed import config (default: ./configs/allowed_imports.json);
• RUNNING_TIMEOUT — maximal duration of solution running (default: 10s);
• message broker:
  • MESSAGE_BROKER_ADDRESS — RabbitMQ connection URI (default: amqp://rabbitmq:rabbitmq@localhost:5672);
  • MESSAGE_BROKER_BUFFER_SIZE — RabbitMQ channel capacity (default: 1000);
• SOLUTION_CONSUMER_CONCURRENCY — amount of solution consumer threads (default: 1000).

API Description

API description in the AsyncAPI format: docs/async_api.yaml.

License

The MIT License (MIT)

Copyright © 2021-2022 thewizardplusplus