我正在使用docker compose运行一个连接到Rabbitmq-server的sbt进程。以下是我的docker compose文件:-
version: "3"
services:
web:
# replace username/repo:tag with your name and image details
image: abhishekkumargaya/messanger
ports:
- "1883:1883"
links:
- rabbit-server
- redis
- mysql
networks:
- webnet
rabbit-server:
image: "rabbitmq:3-management"
hostname: localhost
environment:
#RABBITMQ_ERLANG_COOKIE: "SWQOKODSQALRPCLNMEQG"
RABBITMQ_DEFAULT_USER : guest
RABBITMQ_DEFAULT_PASS : guest
ports:
- "5672:5672"
- "15672:15672"
networks:
- webnet
redis:
image: "redis:alpine"
mysql:
image: mysql
container_name: database.dev
command: mysqld --user=root --verbose
ports:
- "3306:3306"
environment:
MYSQL_DATABASE: "user_messages"
MYSQL_USER: "test"
MYSQL_PASSWORD: "root"
MYSQL_ROOT_PASSWORD: "root"
MYSQL_ALLOW_EMPTY_PASSWORD: "yes"
networks:
webnet:
volumes:
redis-data:
我收到连接被拒绝的错误。我在代码中使用默认值连接到Rabbit服务器。
private lazy val factory = new ConnectionFactory
val connection = factory.newConnection()
我的docker文件:-
FROM openjdk:8
ENV SBT_VERSION 0.13.16
RUN \
curl -L -o sbt-$SBT_VERSION.deb http://dl.bintray.com/sbt/debian/sbt-$SBT_VERSION.deb && \
dpkg -i sbt-$SBT_VERSION.deb && \
rm sbt-$SBT_VERSION.deb && \
apt-get update && \
apt-get install sbt && \
sbt sbtVersion
WORKDIR /app
ADD target/scala-2.11/messanger-assembly-1.0.jar /app
EXPOSE 1883
CMD java -jar messanger-assembly-1.0.jar
我得到的错误如下:
Caused by: java.net.ConnectException: Connection refused (Connection refused)
web_1 | at java.net.PlainSocketImpl.socketConnect(Native Method)
web_1 | at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
web_1 | at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
web_1 | at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
web_1 | at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
web_1 | at java.net.Socket.connect(Socket.java:589)
web_1 | at com.rabbitmq.client.impl.SocketFrameHandlerFactory.create(SocketFrameHandlerFactory.java:60)
web_1 | at com.rabbitmq.client.impl.recovery.RecoveryAwareAMQConnectionFactory.newConnection(RecoveryAwareAMQConnectionFactory.java:62)
web_1 | at com.rabbitmq.client.impl.recovery.AutorecoveringConnection.init(AutorecoveringConnection.java:99)
web_1 | at com.rabbitmq.client.ConnectionFactory.newConnection(ConnectionFactory.java:948)
web_1 | at com.rabbitmq.client.ConnectionFactory.newConnection(ConnectionFactory.java:907)
web_1 | at com.rabbitmq.client.ConnectionFactory.newConnection(ConnectionFactory.java:865)
web_1 | at com.rabbitmq.client.ConnectionFactory.newConnection(ConnectionFactory.java:1018)
web_1 | at com.abhishek.rabbitmq.RabbitMqConnectionFactory$.<init>(RabbitMqConnectionFactory.scala:15)
web_1 | at com.abhishek.rabbitmq.RabbitMqConnectionFactory$.<clinit>(RabbitMqConnectionFactory.scala)
我不太了解这些变量的工作原理:
hostname: localhost
environment:
#RABBITMQ_ERLANG_COOKIE: "SWQOKODSQALRPCLNMEQG"
- RABBITMQ_DEFAULT_USER = guest
- RABBITMQ_DEFAULT_PASS = guest
我之所以保留这样的变量,是因为默认情况下,我的客户端将host用作localhost,将user用作guest,将password用作guest来连接到Rabbitmq-server,如果我只是通过命令运行Rabbitmq-server映像-
docker-compose up --build
我可以通过本地计算机连接它。
我现在可以连接。要连接到Rabbit容器,我需要将host作为Rabbit放置在Web容器中。要想连接到mysql和redis,必须分别使用host作为mysql和redis。
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