Add mysql registry plugin

dolphinscheduler-api/pom.xml

@@ -62,7 +62,7 @@
         </dependency>
         <dependency>
             <groupId>org.apache.dolphinscheduler</groupId>
-            <artifactId>dolphinscheduler-registry-zookeeper</artifactId>
+            <artifactId>dolphinscheduler-registry-all</artifactId>
         </dependency>
         <dependency>
             <groupId>org.apache.dolphinscheduler</groupId>

dolphinscheduler-master/pom.xml

@@ -49,7 +49,7 @@
         </dependency>
         <dependency>
             <groupId>org.apache.dolphinscheduler</groupId>
-            <artifactId>dolphinscheduler-registry-zookeeper</artifactId>
+            <artifactId>dolphinscheduler-registry-all</artifactId>
         </dependency>
         <dependency>
             <groupId>org.apache.dolphinscheduler</groupId>

dolphinscheduler-registry/dolphinscheduler-registry-all/pom.xml

@@ -0,0 +1,42 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ 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.
+  -->
+<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">
+    <parent>
+        <groupId>org.apache.dolphinscheduler</groupId>
+        <artifactId>dolphinscheduler-registry</artifactId>
+        <version>dev-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>dolphinscheduler-registry-all</artifactId>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.dolphinscheduler</groupId>
+            <artifactId>dolphinscheduler-registry-zookeeper</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.dolphinscheduler</groupId>
+            <artifactId>dolphinscheduler-registry-mysql</artifactId>
+            <version>${project.version}</version>
+        </dependency>
+    </dependencies>
+</project>

dolphinscheduler-registry/dolphinscheduler-registry-plugins/dolphinscheduler-registry-mysql/README.md

@@ -0,0 +1,33 @@
+# Introduction
+
+This module is the mysql registry plugin module, this plugin will use mysql as the registry center.
+
+# How to use
+
+If you want to set the registry center as mysql, you need to do the below two steps:
+
+1. Initialize the mysql table
+
+You can directly execute the sql script `src/main/resources/mysql_registry_init.sql`.
+
+2. Open the config
+
+You need to set the registry properties in master/worker/api's appplication.yml
+
+```yaml
+registry:
+  type: mysql
+  term-refresh-interval: 2000
+  term-expire-times: 3
+  mysql-datasource:
+    driver-class-name: com.mysql.cj.jdbc.Driver
+    url: jdbc:mysql://127.0.0.1:3306/dolphinscheduler
+    username: root
+    password: root
+    maximum-pool-size: 5
+    connection-timeout: 9000
+    idle-timeout: 600000
+```
+
+After do this two steps, you can start your DolphinScheduler cluster, your cluster will use mysql as registry centery to
+store server metadata.

dolphinscheduler-registry/dolphinscheduler-registry-plugins/dolphinscheduler-registry-mysql/pom.xml

@@ -0,0 +1,56 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!--
+  ~ Licensed to 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. Apache Software Foundation (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.
+  -->
+<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">
+    <parent>
+        <groupId>org.apache.dolphinscheduler</groupId>
+        <artifactId>dolphinscheduler-registry-plugins</artifactId>
+        <version>dev-SNAPSHOT</version>
+    </parent>
+    <modelVersion>4.0.0</modelVersion>
+
+    <artifactId>dolphinscheduler-registry-mysql</artifactId>
+
+    <dependencies>
+        <dependency>
+            <groupId>org.apache.dolphinscheduler</groupId>
+            <artifactId>dolphinscheduler-registry-api</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.dolphinscheduler</groupId>
+            <artifactId>dolphinscheduler-common</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>com.zaxxer</groupId>
+            <artifactId>HikariCP</artifactId>
+        </dependency>
+        <dependency>
+            <groupId>mysql</groupId>
+            <artifactId>mysql-connector-java</artifactId>
+        </dependency>
+
+        <dependency>
+            <groupId>org.slf4j</groupId>
+            <artifactId>slf4j-api</artifactId>
+        </dependency>
+    </dependencies>
+
+</project>