Class: Kdep::Commands::Apply

Inherits:
Object
  • Object
show all
Defined in:
lib/kdep/commands/apply.rb

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(global_options:, command_options:, args:) ⇒ Apply

Returns a new instance of Apply.



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# File 'lib/kdep/commands/apply.rb', line 16

def initialize(global_options:, command_options:, args:)
  @global_options = global_options
  @command_options = command_options
  @args = args
  @ui = Kdep::UI.new(color: false)
end

Class Method Details

.option_parser ⇒ Object 



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# File 'lib/kdep/commands/apply.rb', line 6

def self.option_parser
  OptionParser.new do |opts|
    opts.banner = "Usage: kdep apply [deploy] [env]"
    opts.separator ""
    opts.separator "Renders and applies Kubernetes manifests to the cluster."
    opts.separator ""
    opts.on("--dry-run", "Show what would be applied without applying")
  end
end

Instance Method Details

#execute ⇒ Object 



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# File 'lib/kdep/commands/apply.rb', line 23

def execute
  deploy_name = @args[0]
  env = @args[1]

  # Discover kdep/ directory
  discovery = Kdep::Discovery.new
  kdep_dir = discovery.find_kdep_dir

  unless kdep_dir
    @ui.error("No kdep/ directory found")
    exit 1
  end

  # Resolve deploy directory
  deploy_dir = resolve_deploy_dir(kdep_dir, deploy_name, discovery)
  unless deploy_dir
    exit 1
  end

  # Load config
  config = Kdep::Config.new(deploy_dir, env).load

  # Validate context before any cluster operation
  begin
    Kdep::ContextGuard.new(config["context"]).validate!
  rescue Kdep::Kubectl::Error => e
    @ui.error(e.message)
    exit 1
  end

  # Load preset resources and render
  preset = Kdep::Preset.new(config["preset"], deploy_dir)
  resources = preset.resources

  repo_root = File.dirname(kdep_dir)
  output_dir = File.join(deploy_dir, ".rendered")

  writer = Kdep::Writer.new(output_dir)
  writer.clean
  renderer = Kdep::Renderer.new(config, deploy_dir)
  validator = Kdep::Validator.new
  validation_errors = []

  resources.each_with_index do |resource_name, idx|
    index = idx + 1
    begin
      content = renderer.render_resource(resource_name)
    rescue => e
      @ui.error("#{resource_name}: #{e.message}")
      next
    end

    unless content.nil? || content.strip.empty?
      result = validator.validate(content, resource_name)
      unless result["valid"]
        result["errors"].each do |err|
          validation_errors << "#{resource_name}: #{err}"
        end
      end
    end

    writer.write(resource_name, content, index)
  end

  unless validation_errors.empty?
    validation_errors.each { |err| @ui.error(err) }
    @ui.error("Manifest validation failed -- fix errors before applying")
    exit 1
  end

  # Get sorted rendered files
  rendered_files = Dir.glob(File.join(output_dir, "*.yml")).sort

  if rendered_files.empty?
    @ui.info("No rendered files to apply")
    return
  end

  # Dry run mode
  if @command_options[:"dry-run"]
    rendered_files.each do |f|
      @ui.info("Would apply: #{File.basename(f)}")
    end
    @ui.info("#{rendered_files.length} files validated (dry-run, no cluster changes)")
    return
  end

  # Apply each file in order
  errors = []
  applied = 0

  namespace = config["namespace"]

  rendered_files.each do |file_path|
    begin
      Kdep::Kubectl.apply(file_path, namespace: namespace)
      @ui.info("applied: #{File.basename(file_path)}")
      applied += 1
    rescue Kdep::Kubectl::Error => e
      errors << { "file" => File.basename(file_path), "error" => e.message }
      @ui.error("#{File.basename(file_path)}: #{e.message}")
    end
  end

  # Summary
  if errors.empty?
    @ui.info("#{applied} files applied, 0 errors")
  else
    @ui.info("#{applied} files applied, #{errors.length} errors")
    exit 1
  end
end