Brings back the helm code

Revert "Revert "This closes #830""

This reverts commit 4236ff2.

locations/container/README.md

@@ -0,0 +1,30 @@
+
+# Kubernetes Location
+
+Brooklyn Container Location has an extensive support for Kubernetes deployments
+In particular, it supports
+
+- KubernetesResource
+- KubernetesHelmChart
+- KubernetesContainer
+
+## Kubernets Helm Chart
+
+Here's an example of an Helm based blueprint 
+
+```YAML
+location:
+  kubernetes:
+    endpoint: https://localhost:6443
+    kubeconfig: /home/user/.kube/config
+services:
+- type: org.apache.brooklyn.container.entity.kubernetes.KubernetesHelmChart
+  name: jenkins-helm
+  chartName: jenkins
+```
+
+Notice, in this case, it is pointing at a local k8s cluster (created using Docker on Mac) and specify a `kubeconfig` 
+file for connection details.
+
+The `KubernetesHelmChart` entity will install the latest version of the `chart` named `jenkins` from the Chart repository `stable` at `https://kubernetes-charts.storage.googleapis.com/`
+You can install a specific version of the chart by using `chartVersion` config key.

locations/container/pom.xml

@@ -32,6 +32,17 @@
     </parent>
 
     <dependencies>
+        <dependency>
+            <groupId>org.microbean</groupId>
+            <artifactId>microbean-helm</artifactId>
+            <version>2.8.2.1.1.1</version>
+            <exclusions>
+                <exclusion>
+                    <groupId>com.google.errorprone</groupId>
+                    <artifactId>error_prone_annotations</artifactId>
+                </exclusion>
+            </exclusions>
+        </dependency>
         <dependency>
             <groupId>io.fabric8</groupId>
             <artifactId>openshift-client</artifactId>
@@ -150,4 +161,41 @@
             <scope>test</scope>
         </dependency>
     </dependencies>
+
+
+    <build>
+        <extensions>
+            <!-- Use os-maven-plugin to initialize the "os.detected" properties -->
+            <extension>
+                <groupId>kr.motd.maven</groupId>
+                <artifactId>os-maven-plugin</artifactId>
+                <version>1.5.0.Final</version>
+            </extension>
+        </extensions>
+        <plugins>
+            <!-- Use Ant to configure the appropriate "tcnative.classifier" property -->
+            <plugin>
+                <groupId>org.apache.maven.plugins</groupId>
+                <artifactId>maven-antrun-plugin</artifactId>
+                <executions>
+                    <execution>
+                        <phase>initialize</phase>
+                        <configuration>
+                            <exportAntProperties>true</exportAntProperties>
+                            <target>
+                                <condition property="tcnative.classifier"
+                                           value="${os.detected.classifier}-fedora"
+                                           else="${os.detected.classifier}">
+                                    <isset property="os.detected.release.fedora"/>
+                                </condition>
+                            </target>
+                        </configuration>
+                        <goals>
+                            <goal>run</goal>
+                        </goals>
+                    </execution>
+                </executions>
+            </plugin>
+        </plugins>
+    </build>
 </project>

locations/container/src/main/java/org/apache/brooklyn/container/entity/kubernetes/KubernetesHelmChart.java

@@ -0,0 +1,37 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.
+ */
+package org.apache.brooklyn.container.entity.kubernetes;
+
+import org.apache.brooklyn.api.entity.ImplementedBy;
+import org.apache.brooklyn.config.ConfigKey;
+import org.apache.brooklyn.core.config.ConfigKeys;
+import org.apache.brooklyn.entity.software.base.SoftwareProcess;
+import org.apache.brooklyn.util.core.ResourcePredicates;
+
+@ImplementedBy(KubernetesHelmChartImpl.class)
+public interface KubernetesHelmChart extends SoftwareProcess {
+
+   ConfigKey<String> CHART_NAME = ConfigKeys.builder(String.class)
+           .name("chartName")
+           .description("Helm Chart name")
+           .build();
+
+   ConfigKey<String> CHART_VERSION = ConfigKeys.builder(String.class)
+           .name("chartVersion")
+           .description("Helm Chart version")
+           .build();
+}

locations/container/src/main/java/org/apache/brooklyn/container/entity/kubernetes/KubernetesHelmChartImpl.java

@@ -0,0 +1,35 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements.  See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You 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.
+ */
+package org.apache.brooklyn.container.entity.kubernetes;
+
+import org.apache.brooklyn.core.entity.BrooklynConfigKeys;
+import org.apache.brooklyn.entity.software.base.EmptySoftwareProcessImpl;
+
+public class KubernetesHelmChartImpl extends EmptySoftwareProcessImpl implements KubernetesHelmChart {
+
+   @Override
+   public void init() {
+      super.init();
+
+      config().set(BrooklynConfigKeys.SKIP_ON_BOX_BASE_DIR_RESOLUTION, true);
+      config().set(PROVISIONING_PROPERTIES.subKey("useJcloudsSshInit"), false);
+      config().set(PROVISIONING_PROPERTIES.subKey("waitForSshable"), false);
+      config().set(PROVISIONING_PROPERTIES.subKey("pollForFirstReachableAddress"), false);
+      config().set(EmptySoftwareProcessImpl.USE_SSH_MONITORING, false);
+   }
+
+}