Class: Jamal::CLI

Inherits:
Object
  • Object
show all
Defined in:
lib/jamal.rb

Class Method Summary collapse

Class Method Details

.deploy(config_path: '_jamal.yml') ⇒ Object 



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# File 'lib/jamal.rb', line 100

def self.deploy(config_path: '_jamal.yml')
  # Load configuration
  config = YAML.load_file(config_path)
  temp_password_file = nil  # Declare variable outside begin block
  
  begin
    Net::SSH.start(config['host'], config['user'],
      password: config['password']
    ) do |ssh|
      puts "Connected to #{config['host']}..."
      
      # Check rsync daemon status
      puts "Checking rsync daemon status..."
      status = ssh.exec!("sudo systemctl status rsync")
      unless status.include?("active (running)")
        puts "Restarting rsync daemon..."
        ssh.exec!("sudo systemctl restart rsync")
      end
      
      # Create nginx configuration with support for multiple domains
      nginx_config = <<~CONFIG
        server {
          listen 80;
          server_name #{Array(config['domains']).join(' ')};
          root /var/www/#{config['name']};
          index index.html index.htm;
          
          location / {
            try_files $uri $uri/ =404;
          }
          
          error_page 400 /400.html;
          error_page 401 /401.html;
          error_page 403 /403.html;
          error_page 404 /404.html;
          error_page 405 /405.html;
          error_page 408 /408.html;
          error_page 429 /429.html;
          error_page 500 /500.html;
          error_page 502 /502.html;
          error_page 503 /503.html;
          error_page 504 /504.html;
        }
      CONFIG
      
      # Check if nginx config already exists and is the same
      existing_config = ssh.exec!("sudo cat /etc/nginx/sites-available/#{config['name']} 2>/dev/null")
      if existing_config == nginx_config
        puts "Nginx configuration unchanged, skipping update..."
      else
        # Create directory and upload nginx config
        puts "Setting up nginx configuration..."
        ssh.exec!("sudo mkdir -p /var/www/#{config['name']}")
        ssh.exec!("sudo chown -R #{config['user']}:#{config['user']} /var/www/#{config['name']}")
        ssh.exec!("sudo chmod -R 755 /var/www/#{config['name']}")
        
        # Upload nginx config using SFTP
        File.write('/tmp/temp_nginx.conf', nginx_config)
        ssh.sftp.connect do |sftp|
          sftp.upload!('/tmp/temp_nginx.conf', "/tmp/#{config['name']}.conf")
          File.delete('/tmp/temp_nginx.conf')
        end
        
        # Move config to nginx sites and enable it
        ssh.exec!("sudo mv /tmp/#{config['name']}.conf /etc/nginx/sites-available/#{config['name']}")
        ssh.exec!("sudo ln -sf /etc/nginx/sites-available/#{config['name']} /etc/nginx/sites-enabled/")
        
        # Test and reload nginx
        puts "Testing nginx configuration..."
        result = ssh.exec!("sudo nginx -t")
        if result && !result.include?("error")
          ssh.exec!("sudo systemctl reload nginx")
          puts "Nginx configuration updated successfully!"
        else
          raise Error, "Invalid nginx configuration"
        end
      end

      # Replace SSH-based rsync with daemon-based rsync
      local_path = config['local_path']
      local_path = "#{local_path}/" unless local_path.end_with?('/')

      # Subdirectory of the site to sync into, e.g. 'en' for example.com/en
      remote_dir = config['remote_dir'].to_s.strip.gsub(%r{\A/+|/+\z}, '')
      remote_path = "/var/www/#{config['name']}#{"/" + remote_dir unless remote_dir.empty?}"

      unless remote_dir.empty?
        ssh.exec!("sudo mkdir -p #{remote_path}")
        ssh.exec!("sudo chown -R #{config['user']}:#{config['user']} #{remote_path}")
        ssh.exec!("sudo chmod -R 755 #{remote_path}")
      end

      # Directories left alone on the server: never uploaded, never deleted
      excludes = Array(config['remote_exclude']).map { |dir| "--exclude=#{dir}" }
      
      # Create temporary password file for rsync
      temp_password_file = Tempfile.new('rsync_password')
      temp_password_file.write(config['rsync_password'])
      temp_password_file.close
      FileUtils.chmod(0600, temp_password_file.path)

      # Build rsync command for daemon mode with simplified output
      rsync_cmd = [
        "rsync",
        "-ahi",                   # archive mode, human-readable, itemize changes
        "--delete",              # delete extraneous files
        "--out-format='%i | %n'", # simplified output format showing changes and filename
        "--password-file=#{temp_password_file.path}",
        *excludes,
        local_path,
        "rsync://#{config['name']}@#{config['host']}/#{config['name']}/#{remote_dir.empty? ? '' : remote_dir + '/'}"
      ].join(" ")
      
      # Execute rsync with better error handling
      puts "Syncing website files..."

      IO.popen(rsync_cmd) do |io|
        while line = io.gets
          info = line.partition('|').first.strip
          filename = line.partition('|').last.strip

          if info[0] == '<'
            puts "Uploading    #{filename}"
          elsif info[0] == '.'
            if info[1] == 'd'
              puts "Acessing     #{filename}"
            else
              puts "Unchanged    #{filename}"
            end
          elsif info == "*deleting"
            puts "Deleting    #{filename}"
          elsif info == "cd+++++++++"
            puts "Creating     #{filename}"
          else
            puts line
          end
        end
      end

      exit_status = $?.exitstatus
      
      # Clean up temporary password file
      temp_password_file.unlink
      
      if exit_status != 0
        puts "Rsync failed. Checking daemon accessibility..."
        system("nc -zv #{config['host']} 873")
        raise Error, "Rsync failed with status: #{exit_status}. Please check the rsync daemon is running and port 873 is accessible."
      end
      
      puts "Sync completed!"
    end
  rescue Net::SSH::AuthenticationFailed
    raise Error, "SSH authentication failed"
  rescue StandardError => e
    raise Error, "Deployment failed: #{e.message}"
  ensure
    # Now temp_password_file will be in scope
    temp_password_file&.unlink
  end
end

.init(config_path: '_jamal.yml') ⇒ Object 



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# File 'lib/jamal.rb', line 306

def self.init(config_path: '_jamal.yml')
  # Create the config file
  File.write(config_path, {
    'name' => 'example',
    'host' => '1.2.3.4',
    'user' => 'root',
    'password' => 'password',
    'domains' => ['example.com', 'www.example.com'],
    'local_path' => './_site'
  }.to_yaml)
  puts "Created #{config_path} with default configuration."
end

.remove(config_path: '_jamal.yml') ⇒ Object 



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# File 'lib/jamal.rb', line 262

def self.remove(config_path: '_jamal.yml')
  # Load configuration
  config = YAML.load_file(config_path)
  
  begin
    Net::SSH.start(config['host'], config['user'],
      password: config['password']
    ) do |ssh|
      puts "Connected to #{config['host']}..."
      
      # Remove nginx configuration
      puts "Removing nginx configuration..."
      ssh.exec!("sudo rm -f /etc/nginx/sites-enabled/#{config['name']}")
      ssh.exec!("sudo rm -f /etc/nginx/sites-available/#{config['name']}")
      ssh.exec!("sudo systemctl reload nginx")
      
      # Remove website files
      puts "Removing website files..."
      ssh.exec!("sudo rm -rf /var/www/#{config['name']}")
      
      # Remove rsync secrets
      puts "Removing rsync secrets..."
      ssh.exec!("sudo sed -i '/#{config['name']}:.*$/d' /etc/rsyncd.secrets")
      
      # Remove rsync configuration
      puts "Removing rsync configuration..."
      ssh.exec!("sudo sed -i '/\\[#{config['name']}\\]/,/^$/d' /etc/rsyncd.conf")
      
      # Clean up empty lines in rsync config
      ssh.exec!("sudo sed -i '/^$/N;/^\\n$/D' /etc/rsyncd.conf")
      
      # Remove rsync_password from local config file
      config.delete('rsync_password')
      File.write(config_path, config.to_yaml)
      
      puts "Successfully removed all configurations for #{config['name']}!"
    end
  rescue Net::SSH::AuthenticationFailed
    raise Error, "SSH authentication failed"
  rescue StandardError => e
    raise Error, "Removal failed: #{e.message}"
  end
end

.setup(config_path: '_jamal.yml') ⇒ Object 



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# File 'lib/jamal.rb', line 14

def self.setup(config_path: '_jamal.yml')
  # Load configuration
  config = YAML.load_file(config_path)
  
  begin
    # Establish SSH connection using config values
    Net::SSH.start(config['host'], config['user'],
      password: config['password']
    ) do |ssh|
      puts "Connected to #{config['host']}..."
      
      # Check if nginx is installed
      result = ssh.exec!("nginx -v")
      if result && !result.include?("not found")
        puts "nginx is already installed"
      else
        puts "Installing nginx..."
        # Update package list and install nginx
        ssh.exec!("sudo apt-get update")
        ssh.exec!("sudo apt-get install -y nginx")
        
        # Verify installation
        result = ssh.exec!("nginx -v")
        if result && !result.include?("not found")
          puts "nginx installed successfully"
        else
          raise Error, "Failed to install nginx"
        end
      end

      # Set up rsync daemon configuration
      puts "Setting up rsync daemon..."
      
      # Create rsyncd configuration with consistent user permissions
      rsyncd_conf = <<~CONFIG
        uid = #{config['user']}
        gid = #{config['user']}
        use chroot = no
        max connections = 4
        pid file = /var/run/rsyncd.pid
        exclude = .git/ .gitignore

        [#{config['name']}]
            path = /var/www/#{config['name']}
            comment = Website files for #{config['name']}
            read only = no
            auth users = #{config['name']}
            secrets file = /etc/rsyncd.secrets
      CONFIG

      # Generate a random password for rsync
      special_chars = '!@#$%^&*()_+-=[]{}|;:,.<>?'.chars
      numbers = '0123456789'.chars
      letters = ('a'..'z').to_a + ('A'..'Z').to_a
      rsync_password = (letters + numbers + special_chars).shuffle[0,16].join
      
      # First, clean up any existing entries for both the site name and root user
      ssh.exec!("sudo sed -i '/^#{config['name']}:/d' /etc/rsyncd.secrets")

      # Add new entry with the website name
      ssh.exec!("echo '#{config['name']}:#{rsync_password}' | sudo tee -a /etc/rsyncd.secrets")
      ssh.exec!("sudo chmod 600 /etc/rsyncd.secrets")
      
      # Remove any existing module configuration and create new one
      ssh.exec!("sudo sed -i '/\\[#{config['name']}\\]/,/^$/d' /etc/rsyncd.conf")
      
      # Write the full rsyncd configuration
      ssh.exec!("echo '#{rsyncd_conf}' | sudo tee -a /etc/rsyncd.conf")
      
      # Update the config file with the rsync password
      config['rsync_password'] = rsync_password
      File.write(config_path, config.to_yaml)
      
      # Enable and start rsync daemon
      ssh.exec!("sudo systemctl enable rsync")
      ssh.exec!("sudo systemctl start rsync")
      
      puts "Rsync daemon configured successfully!"
    end
  rescue Net::SSH::AuthenticationFailed
    raise Error, "SSH authentication failed"
  rescue StandardError => e
    raise Error, "Setup failed: #{e.message}"
  end
end