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Streamlit Configuration
mkdir streamlit_app cd streamlit_test python --version python -m venv venv source venv/bin/activate pip install -U pip pip install streamlit
mkdir .streamlit vi .streamlit/config.toml
- config.toml
[server] port = 8502 headless = true baseUrlPath= "/streamlit-app" [browser] serverAddress = "streamlit.roman-halliday.com" serverPort = 8502
streamlit hello
tmux
To keep application running after session disconnected
sudo apt-get update && sudo apt-get update -y sudo apt-get install tmux
# create tmux session tmux -s streamlit # ctrl b + d to exit the tmux. # attach to existing tmux session tmux attach
session_name="your_session_name" # Replace with the actual name of your tmux session if tmux has-session -t "$session_name" 2>/dev/null; then echo "Tmux session '$session_name' exists. Attaching..." tmux attach-session -t "$session_name" else echo "Tmux session '$session_name' does not exist. Creating and attaching..." tmux new-session -s "$session_name" fi
Apache Configuration
cd /etc/apache2/sites-available/ sudo vi streamlit_VirtualHost.conf sudo vi streamlit_VirtualHost-le-ssl.conf sudo a2ensite streamlit_VirtualHost.conf sudo certbot --apache sudo systemctl reload apache2
- streamlit_VirtualHost.conf
<VirtualHost *:80> ServerName streamlit.roman-halliday.com ServerAlias reporting.roman-halliday.com ServerAdmin david@roman-halliday.com ####################################################################### # No documents being served, only streamlit. # Don't configure for this VirtualHost ####################################################################### #DocumentRoot /var/www/streamlit ####################################################################### # Logging (use standard log files) ####################################################################### ErrorLog ${APACHE_LOG_DIR}/error.log CustomLog ${APACHE_LOG_DIR}/access.log combined ####################################################################### # Rewrite configuration ####################################################################### RewriteEngine on ####################################################################### # Reverse Proxy # HTTP (port 80) only exists to push to HTTPS # So ignore ofiginal configuration for serving streamlit ####################################################################### #RewriteCond %{HTTP:Upgrade} websocket #RewriteRule /streamlit-app(.*) ws://streamlit.roman-halliday.com:8502/streamlit-app$1 [P,L] #RewriteCond %{HTTP:Upgrade} !websocket #RewriteRule /streamlit-app(.*) http://streamlit.roman-halliday.com:8502/streamlit-app$1 [P,L] ####################################################################### # Push all requests for http to https and forward to /streamlit-app # (originaly auto configured by letsencrypt, RewriteRule modified) ####################################################################### RewriteCond %{SERVER_NAME} =streamlit.roman-halliday.com [OR] RewriteCond %{SERVER_NAME} =reporting.roman-halliday.com RewriteRule ^ https://%{SERVER_NAME}/streamlit-app [END,NE,R=permanent] </VirtualHost>
- streamlit_VirtualHost-le-ssl.conf
<IfModule mod_ssl.c> <VirtualHost *:443> ServerName streamlit.roman-halliday.com ServerAlias reporting.roman-halliday.com ServerAdmin david@roman-halliday.com ####################################################################### # No documents being served, only streamlit. # Don't configure for this VirtualHost ####################################################################### #DocumentRoot /var/www/streamlit ####################################################################### # Logging (use standard log files) ####################################################################### ErrorLog ${APACHE_LOG_DIR}/error.log CustomLog ${APACHE_LOG_DIR}/access.log combined ####################################################################### # Rewrite configuration ####################################################################### RewriteEngine on ####################################################################### # Reverse Proxy ####################################################################### RewriteCond %{HTTP:Upgrade} websocket RewriteRule /streamlit-app(.*) ws://streamlit.roman-halliday.com:8502/streamlit-app$1 [P,L] RewriteCond %{HTTP:Upgrade} !websocket RewriteRule /streamlit-app(.*) http://streamlit.roman-halliday.com:8502/streamlit-app$1 [P,L] ####################################################################### # Redirect if app path not given # So: https://streamlit.roman-halliday.com # Becomes: https://streamlit.roman-halliday.com/streamlit-app ####################################################################### RewriteCond %{REQUEST_URI} !streamlit-app RewriteRule ^/?$ /streamlit-app [L,R=302] ####################################################################### # Certificate - letsencrypt (auto configured by letsencrypt) ####################################################################### Include /etc/letsencrypt/options-ssl-apache.conf SSLCertificateFile /etc/letsencrypt/live/reporting.roman-halliday.com/fullchain.pem SSLCertificateKeyFile /etc/letsencrypt/live/reporting.roman-halliday.com/privkey.pem </VirtualHost> </IfModule>
Notes
bash
#!/bin/bash script_name="$1" # Get the script name as the first argument lock_file="/tmp/${script_name//[^a-zA-Z0-9_.-]/}_running.lock" # Create a lock file name # Function to execute if the script is not running execute_script_function() { echo "Executing the script's function..." # Add the actual commands you want to execute here sleep 5 # Example: Simulate some work echo "Function execution complete." } # Check if the lock file exists if [ -f "$lock_file" ]; then # Check if the process associated with the lock file is still running pid=$(cat "$lock_file") if ps -p "$pid" > /dev/null 2>&1; then echo "Script '$script_name' is already running (PID: $pid)." exit 1 else # Lock file exists, but the process is gone. Clean up the stale lock file. echo "Warning: Stale lock file found. Removing '$lock_file'." rm -f "$lock_file" fi fi # Create the lock file with the current process ID echo "$$" > "$lock_file" # Execute the script's function execute_script_function # Clean up the lock file when the script finishes rm -f "$lock_file" exit 0