flatnotes is a simple note app which can be self hosted.

It requires very few resource to launch. My VPS is a debian system, has only 1 core and 512MB ram, but it can run flatnotes smoothly.

First I have to install docker in VPS.

 sudo apt update
 sudo apt install docker.io
 sudo systemctl start docker
 sudo systemctl enable docker
 

And, make a data dir in my home path.

 mkdir ~/data
 

Then, execute this bash script to run flatnotes from docker.

 #!/usr/bin/bash
 docker run -d \
   -e "PUID=1000" \
   -e "PGID=1000" \
   -e "FLATNOTES_AUTH_TYPE=password" \
   -e "FLATNOTES_USERNAME=your_user" \
   -e 'FLATNOTES_PASSWORD=your_pass' \
   -e "FLATNOTES_SECRET_KEY=a_random_token" \
   -v "$(pwd)/data:/data" \
   -p "8080:8080" \
   dullage/flatnotes:latest
 

Please replace USERNAME, PASSWORD, SECRET_KEY with your own strings.

After running, flatnotes opens a HTTP port 8080 on VPS. I would like to setup a reverse proxy for this port.

I have apache2 run on this VPS, so I have to add a configure file for apache2. It looks like:

 <VirtualHost *:80>
     ServerAdmin webmaster@localhost
     ServerName note.host.net
     ErrorLog ${APACHE_LOG_DIR}/note.host.net_error.log
     CustomLog ${APACHE_LOG_DIR}/note.host.net_access.log combined
     ProxyRequests Off
     ProxyPreserveHost On
     ProxyPass / http://127.0.0.1:8080/
     ProxyPassReverse / http://127.0.0.1:8080/
     <Directory />
         Options FollowSymLinks
         AllowOverride None
         Require all granted
     </Directory>
 </VirtualHost>
 

The next let's restart apache2:

 sudo systemctl restart apache2
 

Now when I access http://note.host.net I will reach flatnotes' login page.

Input username and password we setup before, should get logged in successfully.