[Task] Consolidate etcd dependencies into one

Description

Currently, there’re 2 different etcd dependencies in Shenyu. And Can not even start admin by etcd registration.

In admin, it now uses

        <dependency>
            <groupId>io.etcd</groupId>
            <artifactId>jetcd-core</artifactId>
            <version>${jetcd-core.version}</version>
        </dependency>

In shenyu-register-client-server-etcd, it now uses

 <dependency>
            <groupId>com.coreos</groupId>
            <artifactId>jetcd-core</artifactId>
            <version>${jetcd.version}</version>
        </dependency>

When start admin, it will occur below errors because of this issue.

Description:

An attempt was made to call a method that does not exist. The attempt was made from the following location:

    com.coreos.jetcd.internal.impl.ClientConnectionManager.defaultChannelBuilder(ClientConnectionManager.java:187)

The following method did not exist:

    'io.grpc.netty.NettyChannelBuilder io.grpc.netty.NettyChannelBuilder.usePlaintext(boolean)'

The calling method's class, com.coreos.jetcd.internal.impl.ClientConnectionManager, was loaded from the following location:

    jar:file:/Users/hgao/.m2/repository/com/coreos/jetcd-core/0.0.2/jetcd-core-0.0.2.jar!/com/coreos/jetcd/internal/impl/ClientConnectionManager.class

The called method's class, io.grpc.netty.NettyChannelBuilder, is available from the following locations:

    jar:file:/Users/hgao/.m2/repository/io/grpc/grpc-netty/1.27.1/grpc-netty-1.27.1.jar!/io/grpc/netty/NettyChannelBuilder.class

The called method's class hierarchy was loaded from the following locations:

    io.grpc.netty.NettyChannelBuilder: file:/Users/hgao/.m2/repository/io/grpc/grpc-netty/1.27.1/grpc-netty-1.27.1.jar
    io.grpc.internal.AbstractManagedChannelImplBuilder: file:/Users/hgao/.m2/repository/io/grpc/grpc-core/1.27.1/grpc-core-1.27.1.jar
    io.grpc.ManagedChannelBuilder: file:/Users/hgao/.m2/repository/io/grpc/grpc-api/1.27.1/grpc-api-1.27.1.jar

It’s better to consolidate to only one dependency for etcd, and the preference is https://mvnrepository.com/artifact/io.etcd/jetcd-core/0.7.3.

Task List

1. add io.etcd.jetcd into dependency management part in root pom file.
2. remove the other etcd dependency in whole project and replace by above one.
3. refine the code if any error.
4. test the whole process to make sure it works well. The whole process includes starting admin, bootstrap and an example like http example application using etcd as registration configuration.

[mahaitao617]

please assign these four tasks to me

[huanccwang]

Hi @wanghuan0606 , can you run http-example successfully? I can’t run it without changing the grpc version to a higher version. Can you try it? Thanks!

Hello, I can run http-example successfully without any other operate.