app/models/clusters/applications/knative.rb


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# frozen_string_literal: true

module Clusters
  module Applications
    class Knative < ActiveRecord::Base
      VERSION = '0.1.3'.freeze
      REPOSITORY = 'https://storage.googleapis.com/triggermesh-charts'.freeze

      # This is required for helm version <= 2.10.x in order to support
      # Setting up CRDs
      ISTIO_CRDS = 'https://storage.googleapis.com/triggermesh-charts/istio-crds.yaml'.freeze

      self.table_name = 'clusters_applications_knative'

      include ::Clusters::Concerns::ApplicationCore
      include ::Clusters::Concerns::ApplicationStatus
      include ::Clusters::Concerns::ApplicationVersion
      include ::Clusters::Concerns::ApplicationData

      default_value_for :version, VERSION
      default_value_for :hostname, nil

      def chart
        'knative/knative'
      end

      def values
        content_values.to_yaml
      end

      def install_command
        if hostname.nil?
          raise 'Hostname is required'
        end

        Gitlab::Kubernetes::Helm::InstallCommand.new(
          name: name,
          version: VERSION,
          rbac: cluster.platform_kubernetes_rbac?,
          chart: chart,
          files: files,
          repository: REPOSITORY,
          script: install_script
        )
      end

      def install_script
        ['/usr/bin/kubectl', 'apply', '-f', ISTIO_CRDS]
      end

      private

      def content_values
        YAML.load_file(chart_values_file).deep_merge!(knative_configs)
      end

      def knative_configs
        {
          "domain" => hostname
        }
      end
    end
  end
end