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1. SSH into the instance (Select instance from console, click the Connect button, copy and paste the example ssh line into your computer’s terminal). Make sure you’re on the NCAR VPN since you’ve set up the security group.

2. Install nginx (enter in SSH’d terminal):
   

   Code Block
   sudo apt install nginx sudo systemctl status nginx

    

3. Connect {website_name}.jcsda.org to IPv4 on Route 53. (Go to https://console.aws.amazon.com/route53/v2/hostedzones#ListRecordSets/Z1F2XBLX8SOJLO, click create record, name it, keep the type as “A” and enter the instance’s public IPv4 as the Value)

4. Create the file /etc/nginx/sites-enabled/{website_name}.jcsda.org with the following content:
   

   Code Block

   server { listen 80; server_name {website_name}.jcsda.org; proxy_buffering off; location / { proxy_pass http://localhost:8866; 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_http_version 1.1; proxy_set_header Upgrade $http_upgrade; proxy_set_header Connection "upgrade"; proxy_read_timeout 86400; } client_max_body_size 100M; error_log /var/log/nginx/error.log; }

    

5. Enable and start the nginx service.
   

   Code Block
   sudo systemctl enable nginx.service sudo systemctl start nginx.service

   
   

6. Install pip
   

   Code Block
   sudo apt update && sudo apt install python3-pip

    

Clone Git Repo and Install Dependencies:

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1. Create /usr/lib/systemd/system/voila.service with the contents:
   

   Code Block
   [Unit] Description=Voila [Service] Type=simple PIDFile=/run/voila.pid ExecStart=voila --no-browser --show_traceback=False jtd/voila/app.ipynb User=ubuntu WorkingDirectory=/home/ubuntu/ Restart=always RestartSec=10 [Install] WantedBy=multi-user.target

    

2. Enable and start the voila.service:
   

   Code Block
   sudo systemctl enable voila.service sudo systemctl start voila.service

    

3. Restart nginx
   

   Code Block
   sudo systemctl restart nginx.service

    

4. Enable access to https:
   

   Code Block
   sudo snap install core; sudo snap refresh core sudo snap install --classic certbot sudo ln -s /snap/bin/certbot /usr/bin/certbot sudo certbot --nginx

   
   

5. Check access on https://{website_name}.jcsda.org, it should be up and running

Troubleshooting

How to run the web apps on a locally

How to print to output from ipywidgets

Web page fails to load

Issue: the web pages will fail to load/ timeout

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