LINE-Whisper

LINE Whisper is a simple LINE bot that can easily transcribe speech to text.

How to start development

• Set the environments in .env file based on .env.template
• yarn install
• docker-compose -f docker-compose.local.yml up --build

How to deploy service to EC2

• Change SSH setting. (/etc/ssh/sshd_config)
  • PermitRootLogin no
  • PasswordAuthentication no
  • PermitEmptyPasswords no
• Install Docker (https://docs.docker.com/engine/install/ubuntu/)
• Generate ssh key and register it for Github access.
  • ssh-keygen in ~/.ssh
  • register public key to Github
• Clone this git repository to EC2.
• Set the environments in .env file based on .env.template.
• Configure nginx based on the following item.
• Configure logrotate based on the following item.
• Start up docker container.
  • docker compose -f docker-compose.prod.yml up --build -d
• Configure DNS setting and try it!

nginx

• install nginx

  sudo apt install nginx
  sudo systemctl status nginx # check if nginx launched
  

• Save SSL certificate and key to the fololwing path.
  • /etc/ssl/[your_domain].pem
  • /etc/ssl/[your_domain].key
  • Notice:
    • If you still set Cloudflare DNS setting as "Proxied", the above certificate should be a origin server certificate.
• Create nginx conf file.

  sudo vi /etc/nginx/conf.d/line-whisper
  

• Write nginx conf to /etc/nginx/sites-enabled/default

  server {
    listen 80 default_server;
    listen [::]:80 default_server;
    return 301 https://line-api.[your_domain]$request_uri;
  }
  
  server {
    listen 443;
    ssl on;
  
    ssl_certificate      /etc/ssl/[your_domain].pem;
    ssl_certificate_key  /etc/ssl/[your_domain].key;
  
    location /line {
          proxy_pass http://localhost:8081/line;
          proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
          proxy_set_header X-Forwarded-Proto $scheme;
          proxy_set_header Host $http_host;
      }
  
      location /health {
          proxy_pass http://localhost:8081/health;
          proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
          proxy_set_header X-Forwarded-Proto $scheme;
          proxy_set_header Host $http_host;
      }
  
      location / {
         return 404;
      }
  }
  

• Restart nginx.

  sudo systemctl restart nginx
  

logrotate

• logrotate is a service to delete logs periodically.
• Based on the setting file (logrotate.conf), delete and archive (compress) old logs once per week.
• Run command below to start logrotate.

  sudo chmod 744 logrotate.conf # avoid non-root writable
  sudo logrotate -d logrotate.conf # check if error is caused
  sudo logrotate logrotate.conf