How to Deploy a Crypto Trading Bot on Ubuntu DigitalOcean Droplet (Step-by-Step Guide)

Step 1: Set Up the Environment

1. Access your server

 ssh username@your_server_ip

2. Update and Secure Your Server

a. Update your packages

 sudo apt update && sudo apt upgrade -y

b. Install Firewall

sudo ufw allow OpenSSH

sudo ufw allow OpenSSH

sudo ufw enable

3. Install Python and Pip

sudo apt install python3 python3-pip -y

python3 --version

pip3 --version

Step 2: Set Up the Bot

a. Clone Your Bot Repository

git clone https://github.com/your-repo/bot.git

cd bot

b. Create a Virtual Environment

python3 -m venv venv

source venv/bin/activate

c. Install Dependencies

pip install -r requirements.txt

Step 3: Create a systemd Service

a. Create a Service File

sudo vim /etc/systemd/system/mybot.service

b. Paste and update the configuration

[Unit]

Description=Alexander Price Monitoring Bot

After=network.target

[Service]

User=awoyemivictora

WorkingDirectory=/home/awoyemivictora/alexander-price-monitoring-bot

ExecStart=/home/awoyemivictora/alexander-price-monitoring-bot/venv/bin/python /home/awoyemivictora/alexander-price-monitoring-bot/main_bot.py

Restart=always

EnvironmentFile=/home/awoyemivictora/alexander-price-monitoring-bot/.env

[Install]

WantedBy=multi-user.target

c. Save the file in vim

Press Esc and type :wq

d. Adjust Permissions

sudo chmod 644 /etc/systemd/system/alexander_bot.service

e. Ensure Your .env File is Secure

chmod 600 /home/awoyemivictora/alexander-price-monitoring-bot/.env

Step 5: Test the systemd Service

a. Reload systemd Daemon

sudo systemctl daemon-reload

b. Start the Service

sudo systemctl start alexander_bot

c. Enable the Service to Start at Boot

sudo systemctl enable alexander_bot

d. Check Status

sudo systemctl status alexander_bot

e.  Verify Logs

sudo journalctl -u alexander_bot -f

Question?

okay, so if I edit the bot main file, and save it, it’ll automatically readjusted right?

Answer

No, if you edit the main_bot.py file and save it, the running instance of your bot will not automatically reload or adjust. You’ll need to restart the systemd service to apply the changes.

Step 6: Restart the Bot After Changes to the bot file

a. Restart the Service

sudo systemctl restart alexander_bot

b. Check the Service Status To ensure it restarted without errors:

sudo systemctl status alexander_bot

c. Monitor Logs (Optional) To confirm the bot is functioning as expected

sudo journalctl -u alexander_bot -f

Step 7: For Automated Restart on Code Changes

a. Install inotify-tools

sudo apt install inotify-tools

b. Run a File Watch Command Watch your bot file for changes and restart the service when detected:

while inotifywait -e modify /home/awoyemivictora/alexander-price-monitoring-bot/main_bot.py; do

    sudo systemctl restart alexander_bot

done

For most use cases, manually restarting the service after editing the bot file is sufficient. If you’re frequently making changes and testing, the inotify method can streamline your workflow.