[k8s] Add Dashboard UI v1.4 addon to K8s Cluster

This patch introduces kubernetes-dashboard addon
to k8s murano application.
By default this option is enabled, but user can
disable it in dynamic UI corresponding form

Co-Authored-By: ddovbii <ddovbii@mirantis.com>

Change-Id: Id03aed1c5e3c356421beef7b5110d03c2f07d47d

Kubernetes/KubernetesCluster/package/Classes/KubernetesCluster.yaml

@@ -55,6 +55,10 @@ Properties:
     Contract: $.bool().notNull()
     Default: true
 
+  enableDashboard:
+    Contract: $.bool().notNull()
+    Default: true
+
   dockerRegistry:
     Contract: $.string()
 
@@ -152,11 +156,22 @@ Methods:
             Then:
               $._deployDns()
 
+          - If: $.enableDashboard
+            Then:
+              - $._deployDashboard()
+              - If: $.gatewayCount > 0
+                Then:
+                  - $msg: $.gatewayNodes.take($.gatewayCount).select('http://{0}:{1}'.format($.getIp(true), 9090)).join(', ')
+                  - $._environment.reporter.report($this, 'Dashboard UI is available at {0}'.format($msg))
+                Else:
+                  - $._environment.reporter.report($this, 'Dashboard UI is installed but is not accessible from outside')
+
           - $._environment.stack.push()
           - $._updateServicePublicIps()
           - $.setAttr(lastNodeCount, $.nodeCount)
           - $.setAttr(lastGatewayCount, $.gatewayCount)
           - $._environment.reporter.report($this, 'Kubernetes cluster is up and running')
+
       - $.setAttr(serviceEndpoints, $.serviceEndpoints)
 
 
@@ -165,6 +180,23 @@ Methods:
       Return: $.masterNode.getIp()
 
 
+  _deployDashboard:
+    Body:
+      - If: not $.getAttr(uiDeployed, false)
+        Then:
+          - $securityGroupIngress:
+              - ToPort: 9090
+                FromPort: 9090
+                IpProtocol: tcp
+                External: $.masterNode.instance.assignFloatingIp
+          - $._environment.securityGroupManager.addGroupIngress($securityGroupIngress)
+
+          - $resources: new(sys:Resources)
+          - $template: $resources.yaml('DeployDashboard.template').bind(dict(ip => $.getIp()))
+          - $.masterNode.instance.agent.call($template, $resources)
+          - $.setAttr(uiDeployed, true)
+
+
   _deployDns:
     Body:
       - If: not $.getAttr(dnsDeployed, false)

Kubernetes/KubernetesCluster/package/Resources/DeployDashboard.template

@@ -0,0 +1,32 @@
+#  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
+#
+#       http://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.
+
+FormatVersion: 2.0.0
+Version: 1.0.0
+Name: Deploy Dashboard
+
+Parameters:
+  ip: $ip
+
+Body: |
+  return deploy('{0}'.format(args.ip)).stdout
+
+Scripts:
+  deploy:
+    Type: Application
+    Version: 1.0.0
+    EntryPoint: deployDashboard.sh
+    Files:
+      - addons/kube-dashboard-addon.yaml
+    Options:
+      captureStdout: true
+      captureStderr: true

Kubernetes/KubernetesCluster/package/Resources/scripts/addons/kube-dashboard-addon.yaml

@@ -0,0 +1,70 @@
+# Copyright 2016 Google Inc. All Rights Reserved.
+#
+# 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
+#
+#     http://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.
+
+# Configuration to deploy release version of the Dashboard UI.
+#
+# Example usage: kubectl create -f <this_file>
+
+kind: Service
+apiVersion: v1
+metadata:
+  labels:
+    app: kubernetes-dashboard
+  name: kubernetes-dashboard
+  namespace: kube-system
+spec:
+  type: ClusterIP
+  ports:
+  - port: 9090
+    targetPort: 9090
+  selector:
+    app: kubernetes-dashboard
+
+---
+
+kind: Deployment
+apiVersion: extensions/v1beta1
+metadata:
+  labels:
+    app: kubernetes-dashboard
+  name: kubernetes-dashboard
+  namespace: kube-system
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: kubernetes-dashboard
+  template:
+    metadata:
+      labels:
+        app: kubernetes-dashboard
+    spec:
+      containers:
+      - name: kubernetes-dashboard
+        image: gcr.io/google_containers/kubernetes-dashboard-amd64:v1.4.0
+        imagePullPolicy: Always
+        ports:
+        - containerPort: 9090
+          protocol: TCP
+        args:
+          # Uncomment the following line to manually specify Kubernetes API server Host
+          # If not specified, Dashboard will attempt to auto discover the API server and connect
+          # to it. Uncomment only if the default does not work.
+           - --apiserver-host=http://%%MASTER_IP%%:8080
+        livenessProbe:
+          httpGet:
+            path: /
+            port: 9090
+          initialDelaySeconds: 30
+          timeoutSeconds: 30

Kubernetes/KubernetesCluster/package/Resources/scripts/deployDashboard.sh

@@ -0,0 +1,9 @@
+#!/bin/bash
+
+# $1 - IP
+
+sed -i.bak "s/%%MASTER_IP%%/$1/g" addons/kube-dashboard-addon.yaml
+
+cp -f addons/kube-dashboard-addon.yaml /etc/kubernetes/addons
+
+/opt/bin/kubectl create -f /etc/kubernetes/addons/kube-dashboard-addon.yaml >> /tmp/murano-kube.log

Kubernetes/KubernetesCluster/package/Resources/scripts/haproxy.tmpl

@@ -5,6 +5,22 @@ defaults
   contimeout 5000
   clitimeout 50000
   srvtimeout 50000
+
+#Template for kubernetes-dashboard addon
+{{$svc := "/registry/services/endpoints/kube-system/kubernetes-dashboard"}}
+{{if exists $svc}}
+{{$uiEndpoint := get $svc}}
+{{$uiSpec := get "/registry/services/specs/kube-system/kubernetes-dashboard"}}
+{{$uiEndpointJson := json $uiEndpoint.Value}}{{$uiSpecJson := json $uiSpec.Value}}
+{{range $port := $uiSpecJson.spec.ports}}
+listen kubernetes-dashboard-{{$port.port}} 0.0.0.0:{{$port.port}}
+    mode tcp
+    balance leastconn
+{{range $subset := $uiEndpointJson.subsets}}{{range $index, $endpoint := $subset.addresses}}
+    server srv{{$index}} {{$endpoint.ip}}:{{$port.targetPort}}
+{{end}}{{end}}{{end}}{{end}}
+
+#Template for the rest of services located in default namespace
 {{range $svc := ls "/registry/services/endpoints/default"}}
 {{$se := printf "/registry/services/endpoints/default/%s" $svc }}
 {{$ss := printf "/registry/services/specs/default/%s" $svc }}

Kubernetes/KubernetesCluster/package/UI/ui.yaml

@@ -67,6 +67,7 @@ Application:
   dockerMirror: $.kubeNetConfiguration.dockerMirror
   gcloudKey: $.kubeNetConfiguration.gcloudKey
   enableKubeDns: $.kubeNetConfiguration.enableKubeDns
+  enableDashboard: $.kubeNetConfiguration.enableDashboard
 
 Forms:
   - nodesConfiguration:
@@ -180,6 +181,13 @@ Forms:
           description: >-
              Check, if you are going to use KubeDNS feature in your cluster
           required: false
+        - name: enableDashboard
+          type: boolean
+          initial: true
+          label: Enable Kubernetes Dashboard addon
+          description: >-
+             Check, if you are going to use Kubernetes Dashboard in your cluster
+          required: false
         - name: dockerRegistry
           type: string
           label: Custom Docker registry URL

releasenotes/notes/kube-dashboard-addon-fd9f4858a25f301d.yaml

@@ -0,0 +1,8 @@
+---
+features:
+  - Now Kubernetes Cluster murano application provides ability to install
+    Kubernetes Dashbord addon v1.4 during cluster deployment.
+    Dashboard (the web-based user interface of Kubernetes) allows user
+    to deploy containerized applications to a Kubernetes cluster, troubleshoot
+    them, and manage the cluster and its resources itself.
+    User can find dashbord endpoint in deployment logs.