Make text files like logs available for simple remote access via web browser.

1. Change the line FILE_PATH=your_file_path_here in the .env file including the path to the file you want to read (the file path is without quotes).
2. Run pip install -r requirements.txt
3. Run bash run_gunicorn or bash run_flask_server for debugging.
4. Your file content will be available on http://your_ip:8050.

1. Create a unit file ending in .service within the /etc/systemd/system directory to begin: sudo vim /etc/systemd/system/flask-text-reader.service
2. Fill the file with the data describing the service:

[Unit]
Description=Gunicorn instance to serve flask-text-reader
After=network.target

[Service]
User=user_name
WorkingDirectory=/home/user_name/flask-text-reader
Environment="PATH=/home/user_name/flask-text-reader/venv/bin"
EnvironmentFile=/home/user_name/flask-text-reader/.env
ExecStart=/home/user_name/flask-text-reader/venv/bin/gunicorn --bind 0.0.0.0:8050 app:app

[Install]
WantedBy=multi-user.target

3. To ensure proper opeaeration with multiple users, make sure the folder and its contents belongs to a common group of users:
   sudo chgrp -R root flask-text-reader/

1. First, in order to ensure the downloads are valid, add the GPG key for the official Docker repository to your system:
   curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
2. Add the Docker repository to APT sources:
   sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
3. Next, update the package database with the Docker packages from the newly added repo:
   sudo apt-get update
4. Make sure you are about to install from the Docker repo instead of the default Ubuntu 16.04 repo:
   apt-cache policy docker-ce
   You should see output similar to the follow:

docker-ce:
    Candidate: 18.06.1~ce~3-0~ubuntu
    Version table:
        18.06.1~ce~3-0~ubuntu 500
            500 https://download.docker.com/linux/ubuntu xenial/stable amd64 Packages

5. Finally, install Docker:
   sudo apt-get install -y docker-ce
6. Docker should now be installed, the daemon started, and the process enabled to start on boot. Check that it's running:
   sudo systemctl status docker
7. If you want to avoid typing sudo whenever you run the docker command, add your username to the docker group:
   sudo usermod -aG docker ${USER}
8. To apply the new group membership, log out of the server and back in.
9. Afterwards, you can confirm that your user is now added to the docker group by typing:
   id -nG

• For more info, visit: https://www.digitalocean.com/community/tutorials/how-to-install-and-use-docker-on-ubuntu-16-04

1. We'll check the current release and if necessary, update it in the command below:
   ssudo curl -L "https://github.com/docker/compose/releases/download/1.24.1/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
2. Next we'll set the permissions:
   sudo chmod +x /usr/local/bin/docker-compose
3. Then we'll verify that the installation was successful by checking the version:
   docker-compose -v

• For more info, visit: https://www.digitalocean.com/community/tutorials/how-to-install-docker-compose-on-ubuntu-16-04

docker-compose up -d or docker-compose up -d --build --force-recreate to force recreation of image and container
Check if everything is working via the commands:
docker-compose ps or docker ps
Check the logs of each container via the command:
docker-compose logs container_name

Tested on Python3