SpringCloud/spring-cloud-zookeeper
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README.adoc
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image::https://travis-ci.org/spring-cloud/spring-cloud-zookeeper.svg?branch=master[Build Status, link=https://travis-ci.org/spring-cloud/spring-cloud-zookeeper]
This project provides Zookeeper integrations for Spring Boot applications through
autoconfiguration and binding to the Spring Environment and other Spring programming model
idioms. With a few annotations, you can quickly enable and configure the common patterns
inside your application and build large distributed systems with Zookeeper based
components. The provided patterns include Service Discovery and Configuration. Integration
with Spring Cloud Netflix provides Intelligent Routing (Zuul), Client Side Load Balancing
(Ribbon), and Circuit Breaker (Hystrix).
This project provides Zookeeper integrations for Spring Boot apps through autoconfiguration
and binding to the Spring Environment and other Spring programming model idioms. With a few
simple annotations you can quickly enable and configure the common patterns inside your
application and build large distributed systems with Zookeeper based components. The
patterns provided include Service Discovery and Configuration.
Intelligent Routing (Zuul) and Client Side Load Balancing (Ribbon), Circuit Breaker
(Hystrix) are provided by integration with Spring Cloud Netflix.
== Zookeeper overview
ZooKeeper is a centralized service for maintaining configuration information, naming,
providing distributed synchronization, and providing group services. See the
http://zookeeper.apache.org[Zookeeper site] for more information. Spring Cloud Zookeeper
also builds on the http://curator.apache.org[Apache Curator] project, which started life
at Netflix.
"ZooKeeper is a centralized service for maintaining configuration information, naming, providing distributed synchronization, and providing group services."
See the http://zookeeper.apache.org[Zookeeper site] for more information. Spring Cloud Zookeeper also builds on the http://curator.apache.org[Apache Curator] project which started life at Netflix.
== Spring Cloud Zookeeper Features
Spring Cloud Zookeeper includes the following features:
* Spring Cloud `DiscoveryClient` implementation
** supports Ribbon and Zuul
* Zookeeper based `PropertySource` loaded during the 'bootstrap' phase.
* Spring Cloud `DiscoveryClient` implementation (supports Ribbon and Zuul)
* Zookeeper-based `PropertySource` loaded during the 'bootstrap' phase
== Running the sample
== Running the Sample
. http://zookeeper.apache.org/doc/current/zookeeperStarted.html#sc_Download[Install
zookeeper] (On a mac with homebrew, use `brew install zookeeper`).
. http://zookeeper.apache.org/doc/current/zookeeperStarted.html#sc_InstallingSingleMode[Start
zookeeper].
. http://zookeeper.apache.org/doc/current/zookeeperStarted.html#sc_ConnectingToZooKeeper[Verify
zookeeper is running].
. Run `mvn --settings .settings.xml package`.
Doing so brings in the required Spring Cloud Maven repositories and Build.
. Run `java -jar spring-cloud-zookeeper-sample/target/spring-cloud-zookeeper-sample-1.2.0.BUILD-SNAPSHOT.jar`.
. Visit http://localhost:8080 to verify that `{"serviceId":"testZookeeperApp","host":"<yourhost>","port":8080}` works.
. Run `java -jar spring-cloud-zookeeper-sample/target/spring-cloud-zookeeper-sample-1.2.0.BUILD-SNAPSHOT.jar --server.port=8081`
. Visit http://localhost:8080 again to verify that `{"serviceId":"testZookeeperApp","host":"<yourhost>","port":8081}` eventually shows up in the results in a round-robin fashion. (It may take a minute or so.)
1. http://zookeeper.apache.org/doc/current/zookeeperStarted.html#sc_Download[Install zookeeper] (On a mac with homebrew `brew install zookeeper`).
2. http://zookeeper.apache.org/doc/current/zookeeperStarted.html#sc_InstallingSingleMode[Start zookeeper].
3. http://zookeeper.apache.org/doc/current/zookeeperStarted.html#sc_ConnectingToZooKeeper[Verify zookeeper is running].
4. Run `mvn --settings .settings.xml package` this will bring in the required spring cloud maven repositories and build
5. Run `java -jar spring-cloud-zookeeper-sample/target/spring-cloud-zookeeper-sample-1.2.0.BUILD-SNAPSHOT.jar`
6. Visit http://localhost:8080, verify that `{"serviceId":"testZookeeperApp","host":"<yourhost>","port":8080}` results
7. run `java -jar spring-cloud-zookeeper-sample/target/spring-cloud-zookeeper-sample-1.2.0.BUILD-SNAPSHOT.jar --server.port=8081`
8. visit http://localhost:8080 again, verify that `{"serviceId":"testZookeeperApp","host":"<yourhost>","port":8081}` eventually shows up in the results in a round robbin fashion (may take a minute or so).
== Building

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docs/pom.xml
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<parent>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-zookeeper</artifactId>
<version>2.1.0.RC1</version>
<version>2.1.0.BUILD-SNAPSHOT</version>
</parent>
<artifactId>spring-cloud-zookeeper-docs</artifactId>
<packaging>pom</packaging>

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pom.xml
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<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-zookeeper</artifactId>
<version>2.1.0.RC1</version>
<version>2.1.0.BUILD-SNAPSHOT</version>
<packaging>pom</packaging>
<name>Spring Cloud Zookeeper</name>
<description>Spring Cloud Zookeeper</description>
@@ -14,7 +14,7 @@
<parent>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-build</artifactId>
<version>2.1.0.RC2</version>
<version>2.1.0.BUILD-SNAPSHOT</version>
<relativePath/>
<!-- lookup parent from repository -->
</parent>
@@ -175,11 +175,11 @@
</dependencyManagement>
<properties>
<spring-cloud-build.version>2.1.0.RC2</spring-cloud-build.version>
<spring-cloud-commons.version>2.1.0.RC1</spring-cloud-commons.version>
<spring-cloud-config.version>2.1.0.RC1</spring-cloud-config.version>
<spring-cloud-netflix.version>2.1.0.RC1</spring-cloud-netflix.version>
<spring-cloud-openfeign.version>2.1.0.RC1</spring-cloud-openfeign.version>
<spring-cloud-build.version>2.1.0.BUILD-SNAPSHOT</spring-cloud-build.version>
<spring-cloud-commons.version>2.1.0.BUILD-SNAPSHOT</spring-cloud-commons.version>
<spring-cloud-config.version>2.1.0.BUILD-SNAPSHOT</spring-cloud-config.version>
<spring-cloud-netflix.version>2.1.0.BUILD-SNAPSHOT</spring-cloud-netflix.version>
<spring-cloud-openfeign.version>2.1.0.BUILD-SNAPSHOT</spring-cloud-openfeign.version>
</properties>
<profiles>

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spring-cloud-starter-zookeeper-all/pom.xml
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<parent>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-zookeeper</artifactId>
<version>2.1.0.RC1</version>
<version>2.1.0.BUILD-SNAPSHOT</version>
<relativePath>..</relativePath>
</parent>
<artifactId>spring-cloud-starter-zookeeper-all</artifactId>

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spring-cloud-starter-zookeeper-config/pom.xml
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<parent>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-zookeeper</artifactId>
<version>2.1.0.RC1</version>
<version>2.1.0.BUILD-SNAPSHOT</version>
<relativePath>..</relativePath>
</parent>
<artifactId>spring-cloud-starter-zookeeper-config</artifactId>

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spring-cloud-starter-zookeeper-discovery/pom.xml
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@@ -6,7 +6,7 @@
<parent>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-zookeeper</artifactId>
<version>2.1.0.RC1</version>
<version>2.1.0.BUILD-SNAPSHOT</version>
<relativePath>..</relativePath>
</parent>
<artifactId>spring-cloud-starter-zookeeper-discovery</artifactId>

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spring-cloud-starter-zookeeper/pom.xml
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<parent>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-zookeeper</artifactId>
<version>2.1.0.RC1</version>
<version>2.1.0.BUILD-SNAPSHOT</version>
<relativePath>..</relativePath>
</parent>
<artifactId>spring-cloud-starter-zookeeper</artifactId>

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spring-cloud-zookeeper-config/pom.xml
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<parent>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-zookeeper</artifactId>
<version>2.1.0.RC1</version>
<version>2.1.0.BUILD-SNAPSHOT</version>
<relativePath>..</relativePath>
</parent>

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spring-cloud-zookeeper-core/pom.xml
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<parent>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-zookeeper</artifactId>
<version>2.1.0.RC1</version>
<version>2.1.0.BUILD-SNAPSHOT</version>
<relativePath>..</relativePath>
</parent>

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spring-cloud-zookeeper-dependencies/pom.xml
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<parent>
<artifactId>spring-cloud-dependencies-parent</artifactId>
<groupId>org.springframework.cloud</groupId>
<version>2.1.0.RC2</version>
<version>2.1.0.BUILD-SNAPSHOT</version>
<relativePath/>
</parent>
<artifactId>spring-cloud-zookeeper-dependencies</artifactId>
<version>2.1.0.RC1</version>
<version>2.1.0.BUILD-SNAPSHOT</version>
<packaging>pom</packaging>
<name>spring-cloud-zookeeper-dependencies</name>
<description>Spring Cloud Zookeeper Dependencies</description>

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spring-cloud-zookeeper-discovery/pom.xml
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<parent>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-zookeeper</artifactId>
<version>2.1.0.RC1</version>
<version>2.1.0.BUILD-SNAPSHOT</version>
<relativePath>..</relativePath>
</parent>

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spring-cloud-zookeeper-sample/pom.xml
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@@ -11,7 +11,7 @@
<parent>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-zookeeper</artifactId>
<version>2.1.0.RC1</version>
<version>2.1.0.BUILD-SNAPSHOT</version>
<relativePath>..</relativePath>
</parent>