Add installation of Knative

9 files changed, 151 insertions, 2 deletions

diff --git a/app/assets/javascripts/clusters/clusters_bundle.js b/app/assets/javascripts/clusters/clusters_bundle.js
index ebf76af5966..aaf11bfb361 100644
--- a/app/assets/javascripts/clusters/clusters_bundle.js
+++ b/app/assets/javascripts/clusters/clusters_bundle.js
@@ -29,6 +29,7 @@ export default class Clusters {
       installRunnerPath,
       installJupyterPath,
       installPrometheusPath,
+      installKnativePath,
       managePrometheusPath,
       clusterStatus,
       clusterStatusReason,
@@ -49,6 +50,7 @@ export default class Clusters {
       installRunnerEndpoint: installRunnerPath,
       installPrometheusEndpoint: installPrometheusPath,
       installJupyterEndpoint: installJupyterPath,
+      installKnativeEndpoint: installKnativePath,
     });
 
     this.installApplication = this.installApplication.bind(this);
diff --git a/app/assets/javascripts/clusters/components/applications.vue b/app/assets/javascripts/clusters/components/applications.vue
index d708a9e595a..085bf113b45 100644
--- a/app/assets/javascripts/clusters/components/applications.vue
+++ b/app/assets/javascripts/clusters/components/applications.vue
@@ -341,6 +341,24 @@ export default {
             </template>
           </div>
         </application-row>
+        <application-row
+          id="knative"
+          :title="applications.knative.title"
+          :status="applications.knative.status"
+          :status-reason="applications.knative.statusReason"
+          :request-status="applications.knative.requestStatus"
+          :request-reason="applications.knative.requestReason"
+          title-link="https://github.com/knative/docs/"
+        >
+          <div slot="description">
+            {{ s__(`ClusterIntegration|A Knative build extends Kubernetes
+            and utilizes existing Kubernetes primitives to provide you with
+            the ability to run on-cluster container builds from source.
+            For example, you can write a build that uses Kubernetes-native
+            resources to obtain your source code from a repository,
+            build it into container a image, and then run that image.`) }}
+          </div>
+        </application-row>
         <!--
           NOTE: Don't forget to update `clusters.scss`
           min-height for this block and uncomment `application_spec` tests
diff --git a/app/assets/javascripts/clusters/services/clusters_service.js b/app/assets/javascripts/clusters/services/clusters_service.js
index a7d82292ba9..da562b09ee5 100644
--- a/app/assets/javascripts/clusters/services/clusters_service.js
+++ b/app/assets/javascripts/clusters/services/clusters_service.js
@@ -9,6 +9,7 @@ export default class ClusterService {
       runner: this.options.installRunnerEndpoint,
       prometheus: this.options.installPrometheusEndpoint,
       jupyter: this.options.installJupyterEndpoint,
+      knative: this.options.installKnativeEndpoint,
     };
   }
 
diff --git a/app/assets/javascripts/clusters/stores/clusters_store.js b/app/assets/javascripts/clusters/stores/clusters_store.js
index d90db7b103c..710203d8184 100644
--- a/app/assets/javascripts/clusters/stores/clusters_store.js
+++ b/app/assets/javascripts/clusters/stores/clusters_store.js
@@ -46,6 +46,14 @@ export default class ClusterStore {
           requestReason: null,
           hostname: null,
         },
+        knative: {
+          title: s__('ClusterIntegration|Knative'),
+          status: null,
+          statusReason: null,
+          requestStatus: null,
+          requestReason: null,
+          hostname: null,
+        },
       },
     };
   }
diff --git a/app/models/clusters/applications/knative.rb b/app/models/clusters/applications/knative.rb
new file mode 100644
index 00000000000..efcc386483b
--- /dev/null
+++ b/app/models/clusters/applications/knative.rb
@@ -0,0 +1,38 @@
+# frozen_string_literal: true
+
+module Clusters
+  module Applications
+    class Knative < ActiveRecord::Base
+      VERSION = '0.1.0'.freeze
+
+      self.table_name = 'clusters_applications_knative'
+
+      include ::Clusters::Concerns::ApplicationCore
+      include ::Clusters::Concerns::ApplicationStatus
+      include ::Clusters::Concerns::ApplicationVersion
+      include ::Clusters::Concerns::ApplicationData
+      include AfterCommitQueue
+
+      default_value_for :version, VERSION
+
+      def install_command
+        Gitlab::Kubernetes::Helm::KubectlCommand.new(
+          name: name,
+          version: VERSION,
+          rbac: false,
+          chart: chart,
+          files: files
+        )
+      end
+
+      private
+
+      def script
+        [
+          "kubectl apply -f https://raw.githubusercontent.com/knative/serving/v0.1.1/third_party/config/build/release.yaml",
+          "kubectl apply -f https://github.com/knative/serving/releases/download/v0.1.1/release.yaml"
+        ]
+      end
+    end
+  end
+end
diff --git a/app/models/clusters/cluster.rb b/app/models/clusters/cluster.rb
index d7011ef447a..50d878e6df0 100644
--- a/app/models/clusters/cluster.rb
+++ b/app/models/clusters/cluster.rb
@@ -11,7 +11,8 @@ module Clusters
       Applications::Ingress.application_name => Applications::Ingress,
       Applications::Prometheus.application_name => Applications::Prometheus,
       Applications::Runner.application_name => Applications::Runner,
-      Applications::Jupyter.application_name => Applications::Jupyter
+      Applications::Jupyter.application_name => Applications::Jupyter,
+      Applications::Knative.application_name => Applications::Knative
     }.freeze
     DEFAULT_ENVIRONMENT = '*'.freeze
 
@@ -30,6 +31,7 @@ module Clusters
     has_one :application_prometheus, class_name: 'Clusters::Applications::Prometheus'
     has_one :application_runner, class_name: 'Clusters::Applications::Runner'
     has_one :application_jupyter, class_name: 'Clusters::Applications::Jupyter'
+    has_one :application_knative, class_name: 'Clusters::Applications::Knative'
 
     accepts_nested_attributes_for :provider_gcp, update_only: true
     accepts_nested_attributes_for :platform_kubernetes, update_only: true
@@ -81,7 +83,8 @@ module Clusters
         application_ingress || build_application_ingress,
         application_prometheus || build_application_prometheus,
         application_runner || build_application_runner,
-        application_jupyter || build_application_jupyter
+        application_jupyter || build_application_jupyter,
+        application_knative || build_application_knative
       ]
     end
 
diff --git a/db/migrate/20180912111628_add_knative_application.rb b/db/migrate/20180912111628_add_knative_application.rb
new file mode 100644
index 00000000000..f1b44f07267
--- /dev/null
+++ b/db/migrate/20180912111628_add_knative_application.rb
@@ -0,0 +1,40 @@
+# frozen_string_literal: true
+
+# See http://doc.gitlab.com/ce/development/migration_style_guide.html
+# for more information on how to write migrations for GitLab.
+
+class AddKnativeApplication < ActiveRecord::Migration
+  include Gitlab::Database::MigrationHelpers
+
+  # Set this constant to true if this migration requires downtime.
+  DOWNTIME = false
+
+  # When a migration requires downtime you **must** uncomment the following
+  # constant and define a short and easy to understand explanation as to why the
+  # migration requires downtime.
+  # DOWNTIME_REASON = ''
+
+  # When using the methods "add_concurrent_index", "remove_concurrent_index" or
+  # "add_column_with_default" you must disable the use of transactions
+  # as these methods can not run in an existing transaction.
+  # When using "add_concurrent_index" or "remove_concurrent_index" methods make sure
+  # that either of them is the _only_ method called in the migration,
+  # any other changes should go in a separate migration.
+  # This ensures that upon failure _only_ the index creation or removing fails
+  # and can be retried or reverted easily.
+  #
+  # To disable transactions uncomment the following line and remove these
+  # comments:
+  # disable_ddl_transaction!
+
+  def change
+    create_table "clusters_applications_knative" do |t|
+      t.integer "cluster_id", null: false
+      t.datetime_with_timezone "created_at", null: false
+      t.datetime_with_timezone "updated_at", null: false
+      t.integer "status", null: false
+      t.string "version", null: false
+      t.text "status_reason"
+    end
+  end
+end
diff --git a/lib/gitlab/kubernetes/helm.rb b/lib/gitlab/kubernetes/helm.rb
index 4a1bdf34c3e..e1bc6867115 100644
--- a/lib/gitlab/kubernetes/helm.rb
+++ b/lib/gitlab/kubernetes/helm.rb
@@ -2,6 +2,7 @@ module Gitlab
   module Kubernetes
     module Helm
       HELM_VERSION = '2.7.2'.freeze
+      KUBECTL_VERSION = 'v1.11.0'
       NAMESPACE = 'gitlab-managed-apps'.freeze
       SERVICE_ACCOUNT = 'tiller'.freeze
       CLUSTER_ROLE_BINDING = 'tiller-admin'.freeze
diff --git a/lib/gitlab/kubernetes/helm/apply_command.rb b/lib/gitlab/kubernetes/helm/apply_command.rb
new file mode 100644
index 00000000000..c9ad8dc793c
--- /dev/null
+++ b/lib/gitlab/kubernetes/helm/apply_command.rb
@@ -0,0 +1,38 @@
+module Gitlab
+  module Kubernetes
+    module Helm
+      class KubectlCommand
+        include BaseCommand
+
+        attr_reader :name, :scripts, :files
+
+        def initialize(name:, scripts:, files:)
+          @name = name
+          @files = files
+          @rbac = false
+          @scripts = scripts
+        end
+
+        def base_script
+          <<~HEREDOC
+            set -eo pipefail
+            ALPINE_VERSION=$(cat /etc/alpine-release | cut -d '.' -f 1,2)
+            echo http://mirror.clarkson.edu/alpine/v$ALPINE_VERSION/main >> /etc/apk/repositories
+            echo http://mirror1.hs-esslingen.de/pub/Mirrors/alpine/v$ALPINE_VERSION/main >> /etc/apk/repositories
+            apk add -U wget ca-certificates openssl >/dev/null
+            wget -q https://storage.googleapis.com/kubernetes-release/release/v1.11.0/bin/darwin/amd64/kubectl
+            mv /usr/bin/
+          HEREDOC
+        end
+
+        def generate_script
+          (base_script + scripts).join("\n")
+        end
+
+        def rbac?
+          @rbac
+        end
+      end
+    end
+  end
+end