[英]docker-compose java application connection to mongodb
2 Containers, one Java application and the second mongodb. 2个容器,一个Java应用程序和第二个mongodb。
If I run my java app locally and mongodb in a container, it connects but if both run inside a container, java app can't connect to mongodb. 如果我在本地运行Java应用程序,并且在容器中运行mongodb,它将连接,但如果两者都在容器中运行,则Java应用程序将无法连接至mongodb。
docker-compose file is as follows, am I missing something docker-compose文件如下,我是否缺少某些东西
version: "3"
services:
user:
image: jboss/wildfly
container_name: "user"
restart: always
ports:
- 8081:8080
- 65194:65193
volumes:
- ./User/target/User.war:/opt/jboss/wildfly/standalone/deployments/User.war
environment:
- JAVA_OPTS=-agentlib:jdwp=transport=dt_socket,address=0.0.0.0:65193,suspend=n,server=y -Djava.net.preferIPv4Stack=true
- MONGO_HOST=localhost
- MONGO_PORT=27017
- MONGO_USERNAME=myuser
- MONGO_PASSWORD=mypass
- MONGO_DATABASE=mydb
- MONGO_AUTHDB=admin
command: >
bash -c "/opt/jboss/wildfly/bin/add-user.sh admin Admin#007 --silent && /opt/jboss/wildfly/bin/standalone.sh -b 0.0.0.0 -bmanagement 0.0.0.0"
links:
- mongo
mongo:
image: mongo:4.0.10
container_name: mongo
restart: always
volumes:
- ./assets:/docker-entrypoint-initdb.d/
environment:
- MONGO_INITDB_ROOT_USERNAME=myuser
- MONGO_INITDB_ROOT_PASSWORD=mypass
ports:
- 27017:27017
- 27018:27018
- 27019:27019
Edit 编辑
I'm also confused about the following. 我也对以下内容感到困惑。
links:
- mongo
depends_on:
- mongo
You probably cant connect because you set the MONGO_HOST
as localhost
and mongo is a linked service. 您可能无法连接,因为您将MONGO_HOST
设置为localhost
并且mongo是链接服务。
In order to use linked services network, you must specify the MONGO_HOST
as the name of the service - mongo
, like that: 为了使用链接的服务网络,你必须指定MONGO_HOST
作为服务的名称- mongo
,这样的:
MONGO_HOST=mongo
At 2019 July, official docker documentation : 在2019年7月,官方Docker文档:
Source: https://docs.docker.com/compose/compose-file/#links 来源: https : //docs.docker.com/compose/compose-file/#links
Centralize all configurations in a file with environment variables and execute it before docker-compose up 使用环境变量将所有配置集中在一个文件中,并在docker-compose up之前执行它
The following approach helped me in this scenarios: 在这种情况下,以下方法可以帮助我:
This file could be named: /env/company_environments with extension or not. 该文件可以命名为: / env / company_environments,带扩展名或不带扩展名。
export MACHINE_HOST=$(hostname -I | awk '{print $1}')
export GLOBAL_LOG_PATH=/my/org/log
export MONGO_PASSWORD=mypass
export ANOTHER_GLOBAL_VARIABLE=123456
app1:
environment:
- MONGO_HOST=$MACHINE_HOST
- MY_TOKEN=$ANOTHER_GLOBAL_VARIABLE
app2:
environment:
- LOG_PATH=$GLOBAL_LOG_PATH
- MONGO_PASSWORD=$MONGO_PASSWORD
- NOT_DOCKER_POSTGRESS_JDBC_URL_IN_SAME_MACHINE=jdbc:postgresql://$MACHINE_HOST/database
Just add source before docker-compose commands: 只需在docker-compose命令之前添加源代码:
source /env/company_environments
docker-compose up -d
If you have another docker-compose.yml file , you just need to execute the same commands in the folder of your another docker-compose.yml: 如果您还有另一个docker-compose.yml文件,则只需在另一个docker-compose.yml文件夹中执行相同的命令:
source /env/company_environments
docker-compose up -d
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