# Copyright 2019 Google LLC
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     https://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

project_id = attribute('project_id')
registry_project_ids = attribute('registry_project_ids')
location = attribute('location')
cluster_name = attribute('cluster_name')
service_account = attribute('service_account')

control "gcloud" do
  title "Google Compute Engine GKE configuration"
  describe command("gcloud beta --project=#{project_id} container clusters --zone=#{location} describe #{cluster_name} --format=json --format=\"json(nodePools[0].config.workloadMetadataConfig.nodeMetadata)\"") do
    its(:exit_status) { should eq 0 }
    its(:stderr) { should eq '' }

    let!(:data) do
      if subject.exit_status == 0
        JSON.parse(subject.stdout)
      else
        {}
      end
    end
  end

  describe command("gcloud beta --project=#{project_id} container clusters --zone=#{location} describe #{cluster_name} --format=json --format=\"json(nodeConfig.workloadMetadataConfig)\"") do
    its(:exit_status) { should eq 0 }
    its(:stderr) { should eq '' }

    let!(:data) do
      if subject.exit_status == 0
        JSON.parse(subject.stdout)
      else
        {}
      end
    end
  end

  registry_project_ids.each do |registry_project_id|
    describe command("gcloud projects get-iam-policy #{registry_project_id} --format=json") do
      its(:exit_status) { should eq 0 }
      its(:stderr) { should eq '' }

      let(:bindings) do
        if subject.exit_status == 0
          JSON.parse(subject.stdout, symbolize_names: true)[:bindings]
        else
          []
        end
      end
      it "has expected registry roles" do
        expect(bindings).to include(
          members: including("serviceAccount:#{service_account}"),
          role: "roles/storage.objectViewer",
        )
        expect(bindings).to include(
          members: including("serviceAccount:#{service_account}"),
          role: "roles/artifactregistry.reader",
        )
      end
    end
  end
end
