Adds force docker service start

Despite being started via upstart in rare cases docker service
wasn't available on VM first boot. This commit adds force
server star step

Change-Id: I6fb0d247a4333c9444629c23dbc259de12f05805
Closes-Bug: #1449510
(cherry picked from commit 6944505e75aee39058eb2567f872c3416ca3fd60)

DockerStandaloneHost/package/Classes/DockerStandaloneHost.yaml

@@ -62,10 +62,12 @@ Methods:
         Then:
           - $._environment.reporter.report($this, 'Create VM for Docker Server')
           - $.instance.deploy()
+          - $resources: new(sys:Resources)
+          - $template: $resources.yaml('StartDocker.template')
+          - $.instance.agent.call($template, $resources)
           - If: $.dockerRegistry != null and $.dockerRegistry != ''
             Then:
               - $._environment.reporter.report($this, 'Configuring Docker registry')
-              - $resources: new(sys:Resources)
               - $template: $resources.yaml('SetupDockerRegistry.template').bind(dict(
                     dockerRegistry => $.dockerRegistry
                   ))

DockerStandaloneHost/package/Resources/StartDocker.template

@@ -0,0 +1,31 @@
+#  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: Start docker service
+
+Parameters:
+  image: $image
+
+Body: |
+  startDocker()
+
+Scripts:
+  startDocker:
+    Type: Application
+    Version: 1.0.0
+    EntryPoint: startDocker.sh
+    Options:
+      captureStdout: false
+      captureStderr: false
+      verifyExitcode: false

DockerStandaloneHost/package/Resources/scripts/startDocker.sh

@@ -0,0 +1,14 @@
+#!/bin/bash
+#  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.
+
+service docker start