auto_deploy_server.sh

#!/bin/bash

# Input Variables
GITHUB_LINK=$1      # GitHub repository link
CONTAINER_NAME=$2   # Name of the Node.js server container
SERVER_PORT=$3      # Internal port where the server listens (e.g., 3000)
PORT=$4             # Port to expose on the host machine
ENV_VARS=$5         # Block of environment variables (key=value pairs)
ROOT_DIR=$6         # Optional root directory for monorepos

DOMAIN="$CONTAINER_NAME.collegestorehub.com"  # Domain name based on container name
DEPLOY_FOLDER="auto_deploy_server"  # Folder to store all server clones

# Check if required arguments are provided
if [ -z "$GITHUB_LINK" ] || [ -z "$CONTAINER_NAME" ] || [ -z "$SERVER_PORT" ] || [ -z "$PORT" ]; then
    echo "Usage: ./auto_deploy_server.sh <github_link> <container_name> <server_port> <port> <env_vars> [<root_dir>]"
    exit 1
fi

# Step 1: Create the auto_deploy_server folder if it doesn't exist
echo "Creating folder $DEPLOY_FOLDER to store the project"
mkdir -p $DEPLOY_FOLDER

# Step 2: Clone the GitHub repository into the auto_deploy_server folder
echo "Cloning the GitHub repository: $GITHUB_LINK into $DEPLOY_FOLDER/$CONTAINER_NAME"
git clone $GITHUB_LINK $DEPLOY_FOLDER/$CONTAINER_NAME

# Step 3: Copy the Dockerfile into the project folder if it exists in the root directory
if [ -f "Dockerfile" ]; then
    echo "Copying Dockerfile to the project folder"
    cp Dockerfile $DEPLOY_FOLDER/$CONTAINER_NAME/Dockerfile
fi

# Step 4: If a root directory is provided, navigate to that directory
if [ -n "$ROOT_DIR" ]; then
    echo "Monorepo root directory specified: $ROOT_DIR"
    cd $DEPLOY_FOLDER/$CONTAINER_NAME/$ROOT_DIR || exit 1
else
    # Navigate to the cloned repository directory if no root directory is provided
    cd $DEPLOY_FOLDER/$CONTAINER_NAME || exit 1
fi


# Step 5: Create or update the .env file
if [ -f ".env" ]; then
    echo "Existing .env file found. Skipping overwriting of the file."
else
    if [ ! -z "$ENV_VARS" ]; then
        echo "Writing sanitized environment variables to .env file"

        # Sanitize and write the environment variables
        echo "$ENV_VARS" | sed 's/ *= */=/g' > .env
    else
        echo "No environment variables provided."
    fi
fi


# Step 6: Build the Docker image
echo "Building the Docker image for $CONTAINER_NAME"
docker build -t $CONTAINER_NAME .

# Step 7: Run the Docker container, exposing the desired port
echo "Running the Docker container $CONTAINER_NAME and exposing port $PORT"
docker run -d --name $CONTAINER_NAME -p $PORT:$SERVER_PORT $CONTAINER_NAME

# Step 8: Create the NGINX configuration file
NGINX_CONF="/etc/nginx/sites-available/$DOMAIN.conf"
echo "Creating NGINX configuration for $DOMAIN"

sudo bash -c "cat > $NGINX_CONF" <<EOL
server {
    listen 80;
    server_name $DOMAIN www.$DOMAIN;

    location / {
        proxy_pass http://localhost:$PORT;
        proxy_http_version 1.1;
        proxy_set_header Upgrade \$http_upgrade;
        proxy_set_header Connection 'upgrade';
        proxy_set_header Host \$host;
        proxy_cache_bypass \$http_upgrade;
    }
}
EOL

# Step 9: Enable the site by creating a symlink to sites-enabled
echo "Enabling NGINX site for $DOMAIN"
sudo ln -s /etc/nginx/sites-available/$DOMAIN.conf /etc/nginx/sites-enabled/

# Step 10: Restart NGINX to apply the changes
echo "Restarting NGINX"
sudo systemctl restart nginx

# Step 11: Obtain SSL certificates using Certbot
echo "Obtaining SSL certificates for $DOMAIN"
sudo certbot --nginx -d $DOMAIN -d www.$DOMAIN

# Step 12: Output success message
echo "Node.js server container '$CONTAINER_NAME' is running and accessible at http://$DOMAIN"