15  Deploy lagcishiny on your server

15.1 Before starting

You need to prepare the following things: - A server with a public IP address - Domain name with DNS record - non-root account, such as ubuntu - Opening ufw

In this tutorial, We use Ubuntu 22.04.

sudo ufw allow OpenSSH
sudo ufw allow "Nginx Full"
sudo ufw enable
sudo ufw status

sudo apt install -y nginx

sudo apt install -y certbot python3-certbot-nginx

15.1.1 Install R

sudo apt update -qq
sudo apt install --no-install-recommends -y software-properties-common dirmngr

wget -qO- https://cloud.r-project.org/bin/linux/ubuntu/marutter_pubkey.asc \
| sudo tee -a /etc/apt/trusted.gpg.d/cran_ubuntu_key.asc

gpg --show-keys /etc/apt/trusted.gpg.d/cran_ubuntu_key.asc
# Fingerprint should be: E298A3A825C0D65DFD57CBB651716619E084DAB9

sudo add-apt-repository "deb https://cloud.r-project.org/bin/linux/ubuntu jammy-cran40/"
sudo apt update
sudo apt install --no-install-recommends -y r-base
# (optional, needed for compiling packages from source)
sudo apt install -y r-base-dev

Check it.

R --version

15.2 Shiny Server + Nginx

15.2.1 Install Shiny Server

sudo apt update && sudo apt upgrade -y

# Install R from Ubuntu repo (basic)
sudo apt install -y r-base gdebi-core

# Or (recommended) add CRAN repo for latest R
sudo apt install -y software-properties-common dirmngr apt-transport-https
sudo apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 51716619E084DAB9
sudo add-apt-repository "deb https://cloud.r-project.org/bin/linux/ubuntu jammy-cran40/"
sudo apt update
sudo apt install -y r-base

sudo su - \
-c "R -e \"install.packages('shiny', repos='https://cloud.r-project.org/')\""

# Download the latest .deb (for Ubuntu 22.04, use bionic build)
wget https://download3.rstudio.org/ubuntu-14.04/x86_64/shiny-server-1.5.20.1002-amd64.deb

# Install with gdebi
sudo gdebi shiny-server-1.5.20.1002-amd64.deb

sudo systemctl enable shiny-server
sudo systemctl start shiny-server
sudo systemctl status shiny-server

Check it:

curl -I http://localhost:3838

15.2.2 Deploy Shiny APP

sudo mkdir -p /srv/shiny-server/app1
sudo chown -R shiny:shiny /srv/shiny-server/app1
sudo -u shiny bash -lc 'R -q -e "sessionInfo()"'
# copy your code of shiny app
sudo cp -r ~/your_local_app/* /srv/shiny-server/app1/
sudo chown -R shiny:shiny /srv/shiny-server/app1

Then you can access the app via curl -I http://your_server_ip:3838/app1

15.2.3 Configure Nginx

Create a new Nginx site configuration (taking the root path mapping to Shiny Server as an example, /app1 is the application path) :

sudo vim /etc/nginx/sites-available/shiny.conf

Insert these content:

# /etc/nginx/sites-available/shiny.conf
map $http_upgrade $connection_upgrade {
  default upgrade;
  ''      close;
}

server {
  listen 80;
  server_name yourdomain.com;  # modify to your domain name

  # limit size of uploaded files (Shiny upload)
  client_max_body_size 200m;

  # 静态资源缓存（可选，小心不要缓存动态内容）
  location ~* \.(css|js|png|jpg|jpeg|gif|svg|ico)$ {
    expires 30d;
    add_header Cache-Control "public";
    root /var/www/html; # 若无独立静态资源，可删掉本段
  }

  # Reverse proxy to Shiny Server (3838)
  location / {
    proxy_pass http://127.0.0.1:3838;
    proxy_redirect off;

    # WebSocket need
    proxy_http_version 1.1;
    proxy_set_header Upgrade $http_upgrade;
    proxy_set_header Connection $connection_upgrade;

    # Convey genuine source information
    proxy_set_header Host $host;
    proxy_set_header X-Real-IP $remote_addr;
    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
    proxy_set_header X-Forwarded-Proto $scheme;

    # Shiny requests can be very "long"
    proxy_read_timeout 3600s;
    proxy_send_timeout 3600s;
    send_timeout 3600s;
  }
}

Enable and check the configuration:

sudo ln -s /etc/nginx/sites-available/shiny.conf /etc/nginx/sites-enabled/
sudo nginx -t
sudo systemctl reload nginx

Now, you can access your shiny app via:http://yourdomain.com/app1

15.2.4 Get HTTPS certification

sudo certbot --nginx -d yourdomain.com

Select 1 Automatically redirect to HTTPS

15.3 Docker + Nginx

15.3.1 Download docker image

docker pull jaspershenlab/laggedcorshiny:latest

docker run -p 3838:3838 -v /Path/In/Your/Server:/home jaspershenlab/laggedcorshiny:latest

15.3.2 Nginx

The following configuration is the same as that of Shiny Server + Nginx part.