如何从Docker化的Spring Boot连接到Docker化的Couchbase服务器

huangapple
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英文:

How to connect dockerized couchbase server from dockerized spring boot

问题

以下是您提供的内容的翻译：

我创建了一个简单的 Spring Boot 和 Couchbase 应用，现在想将它们容器化。

我为 Spring Boot 创建了 Dockerfile：

  1. FROM maven:3.6.0-jdk-8-slim AS build
  2. RUN mkdir -p /workspace
  3. WORKDIR /workspace
  4. COPY pom.xml /workspace
  5. COPY src /workspace/src
  6. RUN mvn -f pom.xml clean package
  8. FROM openjdk:8
  9. COPY --from=build /workspace/target/*.jar app.jar
  10. EXPOSE 8080
  11. ENTRYPOINT ["java","-jar","app.jar"]

以及我的 Couchbase 的 Dockerfile：

  1. FROM couchbase
  3. RUN chmod +x /entrypoint.sh
  4. COPY configure-server.sh /opt/couchbase
  5. RUN chmod +x /opt/couchbase/configure-server.sh
  7. CMD ["/opt/couchbase/configure-server.sh"]

以及 Docker-compose：

  1. version: '3.0'
  2. services:
  3.   couchbase:
  4.     build: ./couchbase
  5.     container_name: couchbase
  6.     volumes:
  7.       - ~/couchbase/node1:/opt/couchbase/var
  8.     ports:
  9.       - 8091:8091
  10.       - 8092:8092
  11.       - 8093:8093
  12.       - 11210:11210
  14.   todo_server:
  15.     build: ./todo-backend
  16.     container_name: todo_server
  17.     depends_on:
  18.       - couchbase
  19.     ports:
  20.       - 8080:8080

当我尝试运行 docker-compose up couchbase 并在本地运行 Spring Boot 时，它们可以一起工作。但是当我尝试使用 docker-compose up 时，Spring 应用无法连接到 Couchbase 服务器。

我猜这是由于 localhost 导致的。

在 Spring 中，我的 Couchbase 配置如下：

  1. @Configuration
  2. public class CouchbaseConfiguration extends AbstractCouchbaseConfiguration {
  3.     @Override
  4.     public String getConnectionString() {
  5.         return "couchbase://127.0.0.1";
  6.     }
  8.     @Override
  9.     public String getUserName() {
  10.         return "Administrator";
  11.     }
  13.     @Override
  14.     public String getPassword() {
  15.         return "password";
  16.     }
  18.     @Override
  19.     public String getBucketName() {
  20.         return "default";
  21.     }
  23.     @Override
  24.     protected boolean autoIndexCreation() {
  25.         return true;
  26.     }
  27. }

我认为我需要更改这一部分：

  1. public String getConnectionString() {
  2.     return "couchbase://127.0.0.1";
  3. }

我尝试过只用 couchbase 和 couchbase://couchbase，但都不起作用。

控制台上的错误信息如下：

  1. com.couchbase.client.core.deps.io.netty.channel.AbstractChannel$AnnotatedConnectException: finishConnect(..) failed: Connection refused: /127.0.0.1:11210
  2. Caused by: java.net.ConnectException: finishConnect(..) failed: Connection refused
  3.         at com.couchbase.client.core.deps.io.netty.channel.unix.Errors.throwConnectException(Errors.java:124) ~[core-io-2.0.8.jar:na]
  4.         at com.couchbase.client.core.deps.io.netty.channel.unix.Socket.finishConnect(Socket.java:243) ~[core-io-2.0.8.jar:na]
  5.         at com.couchbase.client.core.deps.io.netty.channel.epoll.AbstractEpollChannel$AbstractEpollUnsafe.doFinishConnect(AbstractEpollChannel.java:672) ~[core-io-2.0.8.jar:na]
  6.         at com.couchbase.client.core.deps.io.netty.channel.epoll.AbstractEpollChannel$AbstractEpollUnsafe.finishConnect(AbstractEpollChannel.java:649) ~[core-io-2.0.8.jar:na]
  7.         at com.couchbase.client.core.deps.io.netty.channel.epoll.AbstractEpollChannel$AbstractEpollUnsafe.epollOutReady(AbstractEpollChannel.java:529) ~[core-io-2.0.8.jar:na]
  8.         at com.couchbase.client.core.deps.io.netty.channel.epoll.EpollEventLoop.processReady(EpollEventLoop.java:465) ~[core-io-2.0.8.jar:na]
  9.         at com.couchbase.client.core.deps.io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:378) ~[core-io-2.0.8.jar:na]
  10.         at com.couchbase.client.core.deps.io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989) ~[core-io-2.0.8.jar:na]
  11.         at com.couchbase.client.core.deps.io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[core-io-2.0.8.jar:na]
  12.         at com.couchbase.client.core.deps.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[core-io-2.0.8.jar:na]
  13.         at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_212]

您能帮助我吗？

英文:

I create a simple spring boot and couchbase app and I want to dockerized it.

I create Dockerfile for Spring Boot:

  1. FROM maven:3.6.0-jdk-8-slim AS build
  2. RUN mkdir -p /workspace
  3. WORKDIR /workspace
  4. COPY pom.xml /workspace
  5. COPY src /workspace/src
  6. RUN mvn -f pom.xml clean package
  8. FROM openjdk:8
  9. COPY --from=build /workspace/target/*.jar app.jar
  10. EXPOSE 8080
  11. ENTRYPOINT ["java","-jar","app.jar"]

and my couchbase's dockerfile:

  1. FROM couchbase
  3. RUN chmod +x /entrypoint.sh
  4. COPY configure-server.sh /opt/couchbase
  5. RUN chmod +x /opt/couchbase/configure-server.sh
  7. CMD ["/opt/couchbase/configure-server.sh"]

And Docker-compose:

  1. version: '3.0'
  2. services:
  3.   couchbase:
  4.     build: ./couchbase
  5.     container_name: couchbase
  6.     volumes:
  7.       - ~/couchbase/node1:/opt/couchbase/var
  8.     ports:
  9.       - 8091:8091
  10.       - 8092:8092
  11.       - 8093:8093
  12.       - 11210:11210
  14.   todo_server:
  15.     build: ./todo-backend
  16.     container_name: todo_server
  17.     depends_on:
  18.       - couchbase
  19.     ports:
  20.       - 8080:8080

If I try to docker-compose up couchbase and run spring boot locally they work together. But When I try to use docker-compose up, Spring App can not connect to couchbase server.

I guess this is caused by localhost

My Couchbase Config on Spring

  1. @Configuration
  2. public class CouchbaseConfiguration extends AbstractCouchbaseConfiguration {
  3.     @Override
  4.     public String getConnectionString() {
  5.         return "couchbase://127.0.0.1";
  6.     }
  8.     @Override
  9.     public String getUserName() {
  10.         return "Administrator";
  11.     }
  13.     @Override
  14.     public String getPassword() {
  15.         return "password";
  16.     }
  18.     @Override
  19.     public String getBucketName() {
  20.         return "default";
  21.     }
  23.     @Override
  24.     protected boolean autoIndexCreation() {
  25.         return true;
  26.     }
  27. }

I think I have to change this

  1.  public String getConnectionString() {
  2.         return "couchbase://127.0.0.1";
  3.     }

I tried only couchbase and couchbase://couchbase but it doesn't work.

Errors on console:

  1. com.couchbase.client.core.deps.io.netty.channel.AbstractChannel$AnnotatedConnectException: finishConnect(..) failed: Connection refused: /127.0.0.1:11210
  2. Caused by: java.net.ConnectException: finishConnect(..) failed: Connection refused
  3.         at com.couchbase.client.core.deps.io.netty.channel.unix.Errors.throwConnectException(Errors.java:124) ~[core-io-2.0.8.jar:na]
  4.         at com.couchbase.client.core.deps.io.netty.channel.unix.Socket.finishConnect(Socket.java:243) ~[core-io-2.0.8.jar:na]
  5.         at com.couchbase.client.core.deps.io.netty.channel.epoll.AbstractEpollChannel$AbstractEpollUnsafe.doFinishConnect(AbstractEpollChannel.java:672) ~[core-io-2.0.8.jar:na]
  6.         at com.couchbase.client.core.deps.io.netty.channel.epoll.AbstractEpollChannel$AbstractEpollUnsafe.finishConnect(AbstractEpollChannel.java:649) ~[core-io-2.0.8.jar:na]
  7.         at com.couchbase.client.core.deps.io.netty.channel.epoll.AbstractEpollChannel$AbstractEpollUnsafe.epollOutReady(AbstractEpollChannel.java:529) ~[core-io-2.0.8.jar:na]
  8.         at com.couchbase.client.core.deps.io.netty.channel.epoll.EpollEventLoop.processReady(EpollEventLoop.java:465) ~[core-io-2.0.8.jar:na]
  9.         at com.couchbase.client.core.deps.io.netty.channel.epoll.EpollEventLoop.run(EpollEventLoop.java:378) ~[core-io-2.0.8.jar:na]
  10.         at com.couchbase.client.core.deps.io.netty.util.concurrent.SingleThreadEventExecutor$4.run(SingleThreadEventExecutor.java:989) ~[core-io-2.0.8.jar:na]
  11.         at com.couchbase.client.core.deps.io.netty.util.internal.ThreadExecutorMap$2.run(ThreadExecutorMap.java:74) ~[core-io-2.0.8.jar:na]
  12.         at com.couchbase.client.core.deps.io.netty.util.concurrent.FastThreadLocalRunnable.run(FastThreadLocalRunnable.java:30) ~[core-io-2.0.8.jar:na]
  13.         at java.lang.Thread.run(Thread.java:748) ~[na:1.8.0_212]

Can you help me?

答案1

得分: 2

我通过以下方式解决了这个问题。

我的新Docker Compose文件：

  1. version: '3.7'
  2. services:
  3.   db:
  4.     build: ./couchbase
  5.     container_name: todo-couchbase
  6.     volumes:
  7.       - ~/couchbase/node1:/opt/couchbase/var
  8.     ports:
  9.       - 8091:8091
  10.       - 8092:8092
  11.       - 8093:8093
  12.       - 11210:11210
  13.     networks:
  14.       - my_network
  15.   todo_server:
  16.     build: ./todo-backend
  17.     container_name: todo-backend
  18.     environment:
  19.       COUCHBASE_HOST: db
  20.     depends_on:
  21.       - db
  22.     ports:
  23.       - 8080:8080
  24.     networks:
  25.       - my_network
  27. networks:
  28.   my_network:
  29.     driver: bridge

我修改了连接字符串：

  1. public String getConnectionString() {
  2.     return "db";
  3. }
英文:

I solved this problem by doing the following.

My new Docker-compose file:

  1. version: '3.7'
  2. services:
  3.   db:
  4.     build: ./couchbase
  5.     container_name: todo-couchbase
  6.     volumes:
  7.       - ~/couchbase/node1:/opt/couchbase/var
  8.     ports:
  9.       - 8091:8091
  10.       - 8092:8092
  11.       - 8093:8093
  12.       - 11210:11210
  13.     networks:
  14.       - my_network
  15.   todo_server:
  16.     build: ./todo-backend
  17.     container_name: todo-backend
  18.     environment:
  19.       COUCHBASE_HOST: db
  20.     depends_on:
  21.       - db
  22.     ports:
  23.       - 8080:8080
  24.     networks:
  25.       - my_network
  27. networks:
  28.   my_network:
  29.     driver: bridge

and I changed connection string

  1.  public String getConnectionString() {
  2.         return "db";
  3.     }

huangapple
  • 本文由 发表于 2020年9月11日 19:43:16
  • 转载请务必保留本文链接：https://go.coder-hub.com/63846409.html
  • couchbase
  • docker
  • docker-compose
  • java
  • spring-boot
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