HBASE-27831 Introduce zookeeper-single-instance component

.gitignore

@@ -21,3 +21,6 @@ linklint-*.zip
 linklint/
 .checkstyle
 **/.checkstyle
+
+# detritus produced by kuttl
+kubeconfig*

hbase-kubernetes-deployment/hbase-kubernetes-kustomize/pom.xml

@@ -0,0 +1,91 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+  <!--
+      /**
+      * 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.
+      */
+  -->
+  <modelVersion>4.0.0</modelVersion>
+  <parent>
+    <artifactId>hbase-kubernetes-deployment</artifactId>
+    <groupId>org.apache.hbase.operator.tools</groupId>
+    <version>${revision}</version>
+    <relativePath>..</relativePath>
+  </parent>
+
+  <artifactId>hbase-kubernetes-kustomize</artifactId>
+  <name>Apache HBase - Kubernetes Kustomize</name>
+  <description>Kustomize deployment descriptors.</description>
+  <packaging>pom</packaging>
+
+  <dependencies>
+    <dependency>
+      <groupId>org.apache.hbase.operator.tools</groupId>
+      <artifactId>hbase-kubernetes-testing-image</artifactId>
+      <type>pom</type>
+      <scope>test</scope>
+    </dependency>
+  </dependencies>
+
+  <build>
+    <plugins>
+      <plugin>
+        <groupId>org.codehaus.mojo</groupId>
+        <artifactId>exec-maven-plugin</artifactId>
+        <configuration>
+          <executable>src/test/resources/mvn_exec_run_kuttl.sh</executable>
+          <useMavenLogger>true</useMavenLogger>
+          <skip>${skipTests}</skip>
+        </configuration>
+        <executions>
+          <execution>
+            <id>kuttl-unit-tests</id>
+            <phase>test</phase>
+            <goals>
+              <goal>exec</goal>
+            </goals>
+            <configuration>
+              <arguments>
+                <argument>--config</argument>
+                <argument>src/test/resources/kuttl-test-unit.yaml</argument>
+                <argument>--artifacts-dir</argument>
+                <argument>target/kuttl-reports</argument>
+              </arguments>
+            </configuration>
+          </execution>
+          <execution>
+            <id>kuttl-integration-tests</id>
+            <phase>verify</phase>
+            <goals>
+              <goal>exec</goal>
+            </goals>
+            <configuration>
+              <arguments>
+                <argument>--config</argument>
+                <argument>src/test/resources/kuttl-test-integration.yaml</argument>
+                <argument>--artifacts-dir</argument>
+                <argument>target/kuttl-reports</argument>
+              </arguments>
+            </configuration>
+          </execution>
+        </executions>
+      </plugin>
+    </plugins>
+  </build>
+</project>

hbase-kubernetes-deployment/hbase-kubernetes-kustomize/src/main/kustomize/components/zookeeper/README.md

@@ -0,0 +1,23 @@
+<!--
+ 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.
+-->
+
+Uses latest image from the apache zookeeper project.
+There is then a start script in 'single-instance/start.sh'
+which sets parameters for the zookeeper image and process
+on startup. Currently only logs to STDOUT/STDERR; there
+are no files in /var/log/zookeeper.

hbase-kubernetes-deployment/hbase-kubernetes-kustomize/src/main/kustomize/components/zookeeper/single-instance/kustomization.yaml

@@ -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.
+---
+apiVersion: kustomize.config.k8s.io/v1alpha1
+kind: Component
+
+configMapGenerator:
+- name: zookeeper-scripts
+  files:
+  - start.sh
+# Publish where the zk ensemble can be found.
+- name: zookeeper-quorum
+  literals:
+    # Hard-coded. Default we expect a simple standalone zk at this location.
+    # One define is for hbase, the other for hadoop.
+    - HBASE_ZOOKEEPER_QUORUM="zookeeper-0.zookeeper-headless"
+    - HA_ZOOKEEPER_QUORUM="zookeeper-0.zookeeper-headless:2181"
+  options:
+    disableNameSuffixHash: true
+
+resources:
+- zookeeper.yaml